Bathroom installations, refits, taps and shower repairs, leaks, slow drains and ventilation faults are the typical bathroom plumbing calls across Kingston upon Thames — KT1, KT2, KT3, KT4, KT5, KT6, KT9 and SW15.

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Plumbers set their own response times and prices — confirm availability and pricing before booking.

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Availability varies between contractors, particularly for full bathroom refits which book several weeks ahead during peak periods; not every plumber covers every postcode in the borough or takes on full-suite installs.

Not sure which service you need? For an active leak from a bathroom tap, shower, toilet or pipework that you can’t isolate, see Burst Pipes Kingston or Emergency Plumber Kingston.

For a single tap repair or replacement only, see Tap Repair / Installation Kingston. For toilet faults specifically, see Toilet Repairs Kingston. For a slow leak from bathroom pipework you can’t locate, see Leak Detection Kingston.

For a full bathroom install, refit, shower, bath, basin, waste or ventilation issue — stay on this page.

What “bathroom plumbing” covers

Bathroom plumbing covers everything in a bathroom that involves water supply, hot water, drainage and ventilation:

• Full bathroom installations and refits — supply, waste and drainage for a complete bathroom from a stripped-out room, including bath, basin, toilet, shower, towel rail, and any associated tiling/finish coordination
• Like-for-like fixture replacement — swapping bath, basin, toilet, shower, taps or shower valve where existing supply and waste positions are retained
• Repositioning fixtures — moving the toilet, basin, bath or shower to a new position, requiring new supply and waste runs
• Adding a new bathroom or en-suite — running new hot and cold supply, waste and drainage to a previously unplumbed room, plus extract ventilation
• Tap and mixer faults — drips, low flow, thermostatic shower failures, cartridge replacement, washer wear
• Shower valves and pumps — replacement of mixer or thermostatic valves, electric shower replacement, shower pump diagnosis on gravity-fed systems
• Waste and drainage faults — slow drains, partial blockages at trap or branch level, water back-up, soil-pipe fitting issues, shower-tray leaks
• Sealant, splashbacks and finish-related leaks — perished silicone, failed grout, leaks behind tiles
• Ventilation and condensation control — extract fan replacement, missing or under-specified ventilation, condensation-driven mould at high-humidity points
• Backflow protection — air gaps, check valves and other suitable devices where required by the Water Supply (Water Fittings) Regulations 1999, depending on the contamination risk at the fitting⁵⁹

A full bathroom refit is a multi-trade job. the plumber is responsible for the supply, waste and drainage, and will commonly coordinate with a Part P-registered electrician for shower and extractor fan electrical work.

Tiling, plastering, decoration and second-fix electrical work (for fan, lighting and shaver socket) are usually separate trades coordinated alongside.

Before booking: scope, hot water system and access

Most bathroom plumbing calls fall into one of three categories — single-fault repair, like-for-like swap, and full refit or new bathroom. The right scope, the right plumber and the right pricing structure depend heavily on which one applies.

Single-fault repair. Drip, slow drain, failed shower valve, broken toilet flush, isolated leak. Usually a one- to two-hour visit by any general bathroom plumber.

Like-for-like fixture swap. Replacing bath, basin, toilet or shower in the same position with the same supply and waste positions. Half-day to one-day visits depending on scope and access.

Full bathroom refit or new bathroom. Strip-out, new pipework runs, new supply and waste, new fixtures, plus tiling, decoration and electrical coordination. Multi-day to multi-week jobs depending on scope, access and finish complexity.

For full refits and new bathrooms, the right hot water system matters before fixture selection.

Many combination boilers struggle to provide stable flow and temperature for two simultaneous showers, particularly at peak demand. High-output combis with strong incoming mains may cope, but lower-output combis, weaker mains pressure or peak-demand simultaneous use will produce flow or temperature drop.

A system or regular boiler with an unvented hot water cylinder will deliver mains-pressure flow at multiple outlets, but the cylinder needs to be sized for occupancy and outlet count. Gravity-fed systems with a cold water cistern in the loft can require shower pumps to deliver acceptable shower flow at upper-floor showers.

Confirm the hot water system type with the plumber before specifying baths, showers and multi-outlet runs.

Access also matters. In Kingston’s older period stock, concealed pipework runs through suspended timber floors, behind boxed-in skirting and through chimney breasts can extend the working time on what looks like a simple swap.

In modern flats with concrete floor construction, repositioning a toilet or shower may not be possible without rerouting through walls.

Key bathroom plumbing requirements

Bathroom plumbing in England is governed by Building Regulations and water supply regulations. The relevant Approved Documents and statutory instruments cover ventilation, sanitation, hot water safety, drainage, electrical safety in the bathroom zone, and backflow protection.

Ventilation — Approved Document F. For new bathrooms, or bathroom work subject to Building Regulations, Approved Document F sets extract ventilation standards.

Intermittent extract for a bathroom is typically 15 litres per second; continuous extract systems are rated by total whole-dwelling rate. Where there is no openable window, fan overrun is commonly specified to support moisture removal.⁵⁷

Sanitation, hot water safety and water efficiency — Approved Document G. For new dwellings, including homes created by material change of use, bath hot water delivery must be limited to no more than 48°C unless an exemption applies.

Unvented hot water systems require an installer competent to work on unvented hot water systems. Water efficiency calculation requirements apply to new dwellings, with the standard water-efficiency target measured in litres per person per day.⁵⁶

Drainage — Approved Document H. Wastes from baths, basins, showers and toilets must connect to the drainage system at the correct fall, with appropriately sized pipework, ventilated where needed to prevent siphonage.

Toilet branch connections require careful planning around the soil stack to ensure trap seal retention.⁵⁸

Electrical safety in bathrooms — Approved Document P. Electrical work in bathrooms falls within Part P. Notifiable work includes new circuits, consumer unit replacement, and additions or alterations to existing circuits in bathroom special locations, meaning the defined zones around a bath or shower.

Like-for-like repairs or replacements may not be notifiable, but must still comply with Part P. Notifiable work must be carried out by a competent person registered with a competent person scheme, or notified to building control.⁷ ³⁷

Water supply and backflow — Water Supply (Water Fittings) Regulations 1999. All water fittings connected to a public mains supply must comply.

Backflow protection must be appropriate to the contamination risk at the fitting, using air gaps, check valves or other suitable devices where required.⁵⁹

A bathroom plumber competent for full bathroom installations will normally coordinate with a Part P-registered electrician for electrical work, and (where the boiler-side hot water work involves gas) with a Gas Safe registered engineer for any gas pipework or boiler interface.

Common bathroom plumbing faults in Kingston

Most bathroom plumbing call-outs fall into a small number of categories, and across Kingston the fault profile is shaped by the borough’s hard-water context, period-property concealed pipework, and the modern-flat slab construction common in town-centre and riverside developments.

Dripping tap or mixer. Cartridge wear, washer perish, or seat damage. Cartridge or full tap replacement typically resolves; some older taps no longer have available replacement parts and full replacement is often the better route.

Slow flow at a tap or shower. Aerator clogged with scale, cartridge fouling, partially closed isolation valve, or low system pressure. Aerator clean, cartridge replacement, isolation-valve check, or pressure check at the boiler or stopcock.

Thermostatic shower valve fault. Inconsistent temperature, scalding, or no hot. Cartridge replacement is the typical fix.

In Kingston’s hard-water context, scale build-up shortens cartridge life — repeat cartridge replacement is a common bathroom call-out in hard-water areas like Kingston. See “Hard water and Kingston bathrooms” below.

Electric shower not heating, low flow, or tripping. Electric shower units have heating elements, internal solenoids and pressure switches that can fail.

Some faults need the shower replaced rather than repaired, particularly where parts are no longer available. Electrical faults need a competent electrician.⁷

Leaking shower tray or enclosure. Failed silicone seal, perished waste seal, cracked tray, or failed grout in the splashback area.

Diagnosis often requires a careful visual and (sometimes) controlled-water test to identify whether the leak is at the waste, the tray or the tile/grout interface.

Pinhole leaks in older copper pipework. Older copper pipework can develop pinhole leaks over time, particularly at joints, bends and stressed sections. Hard water may also contribute to scale build-up in fittings and valves.

The pattern is most often seen across Kingston’s Victorian and Edwardian stock — Surbiton, Canbury, Kingston town centre and parts of Norbiton — where original or early copper has been in service for decades. Where concealed runs are opened during a refit, older pipework condition should be checked.

Mixed pipework and concealed-run leaks at extension transitions. Later extensions and loft conversions may include mixed pipe materials, push-fit transitions and concealed runs. Leaks at transition fittings or poorly supported pipework can occur and may require access work.

In Kingston’s 1930s suburban housing across Berrylands, Old Malden, Tolworth, parts of New Malden, Chessington and Hook, this pattern can occur where original supply pipework has been extended into rear or side additions over the years.

Slab leaks in modern flats. In Kingston town centre, riverside, Grove and Knights Park developments, pipework cast into or running under concrete floors can develop slow leaks that are not easily traced from above. Acoustic detection or tracer gas is typically needed — see Leak Detection Kingston.

Leak from under the bath. Loose tap connection, perished waste seal, leak from the overflow assembly, or a slow leak from the supply pipework concealed in the void below the bath. Bath panel removal normally identifies the source.

Toilet running on, leaking from cistern, or filling slowly. Fill valve fault, flush valve fault, or a perished cistern-to-pan washer. Single-visit fix in most cases.

For broader toilet-specific faults including waste, soil pipe and pan-connector issues, see Toilet Repairs Kingston.

Slow draining basin, shower or bath. Trap blockage with hair, soap residue, or scale. Trap clean is normally a quick fix; recurring blockages can indicate a downstream issue at the branch or stack — see Blocked Drains Kingston.

Soil pipe or pan connector leak. Connector seal failure, soil branch slope incorrect, or vent/anti-siphon fault. Diagnosis and repair usually possible same-day; access in concealed runs in period property may extend the visit.

Shared soil-stack faults in mansion blocks and converted houses. Common across Surbiton, Canbury and Kingston town centre converted Victorian/Edwardian houses, and in mansion blocks borough-wide. Faults on the shared stack typically require building-manager or freeholder coordination before access — internal flat-side faults can be attended without that.

Damp or mould in the bathroom. Failed silicone or grout, missing or under-rated extract ventilation, condensation on cold-bridging walls, or a slow concealed leak.

Diagnosis distinguishes between the leak-driven and condensation-driven causes — the repair routes are different.

Whole-property low pressure or low flow at upper-floor outlets. Possible mains-side issue, inside stop valve restriction, or (on gravity-fed systems) cistern level / cold water supply issue. More common in older Victorian properties on the borough’s Victorian/Edwardian belt.

Bathroom fault matrix — quick reference

How a bathroom plumbing visit works in Kingston

The right sequence depends on whether the visit is a fault repair, a like-for-like swap or a full refit.

Fault repair visit. Inspection, diagnosis, repair, test. Most single-fault visits are completed within one to two hours.

Like-for-like swap. Inspection of existing supply and waste positions, isolation, removal of old fixture, fitting of new, leak test, sealant and finish. Half-day to full-day depending on fixture and access.

Full refit / new bathroom.

1. Survey and quote. Site visit, measurement, water system check (combi vs cylinder, mains pressure, gravity head where relevant), confirmation of access and removal route, written quote covering supply and waste runs, fixtures, ventilation, electrical interface, finish coordination
2. Strip-out. Removal of existing fixtures, tiling, ventilation and electrics; protection of access routes
3. First fix plumbing. New supply runs (hot and cold), waste runs, drainage falls, soil branch as needed, ventilation ducting where new
4. First fix electrics. Cabling for shower, fan, lighting, shaver socket, towel rail — to Approved Document P⁷ ³⁷
5. Plastering and tiling. Often a separate trade, sequenced before second fix
6. Second fix plumbing. Fixture installation, tap and shower valve installation, soil and waste connections, sealing, commissioning
7. Second fix electrics. Fan, shaver socket, lighting, electric shower wiring; Part P certification where notifiable⁷
8. Commissioning and snagging. Full leak test, flush of new supply, ventilation check, sealant inspection, walk-through with the customer

A full refit for a single bathroom in Kingston typically runs five to ten working days from strip-out to commissioned, depending on scope, access, finish complexity and trade availability.

Kingston-specific timing and access patterns:

• Mansion blocks and converted Victorian houses (Surbiton, Canbury, Kingston town centre, parts of Norbiton). Refit and stack-affecting repair work normally needs building-manager, freeholder or managing-agent permission before strip-out. Add one to three working days at the front of the job for access coordination, and longer where the building manager requires their own contractor for shared-pipework cut-ins.
• Kingston Council leasehold blocks. Internal flat-side work is the leaseholder’s to instruct, but any work touching the riser, the soil stack or shared services routes through the building manager. For some pre-1988 leases, Kingston Council retains responsibility for heating and hot-water installation within the flat — confirm the responsibility split before instructing internal work that might fall to the council.
• Listed buildings and conservation areas (Kingston Old Town, Surbiton Town Centre, Surbiton Hill Park, Park Road in Norbiton, Presburg Road in New Malden, Kingston Vale). Where access work would affect historic floors, lath-and-plaster walls or period fabric, listed-building consent may be needed before strip-out. Add weeks rather than days for consent where required — see “Conservation areas and listed buildings” below.
• Modern town-centre and riverside flats (Kingston upon Thames town centre, Grove, Knights Park). Concrete floor construction limits how far fixtures can be repositioned without major rework. Surveys typically include a flow and pressure check at the cylinder, and confirmation of which fixtures are reposition-able vs locked to existing positions.

Common Kingston bathroom plumbing patterns by housing stock

Kingston’s housing stock varies sharply across the borough, and the typical bathroom plumbing fault and refit pattern tracks the property type.

Victorian and Edwardian properties — Surbiton, Canbury, Kingston town centre, parts of Norbiton. Bathrooms are often retrofitted into former bedrooms or boxed-in landings, with concealed pipework routed through suspended timber floors, behind chimney breasts, and across landings.

Pinhole leaks in older copper pipework are a recurring theme in this stock, particularly in horizontal runs and at joints.

Older properties may still have lead supply pipework on the property side of the boundary — replacement with modern MDPE is a separate, larger job and worth coordinating with a bathroom refit where the route is being opened up.

Period bathrooms in conservation areas and listed buildings need careful planning where original finishes, period sanitaryware or historic floor coverings would be affected by access work.

1930s suburban housing — Berrylands, Old Malden, Tolworth, parts of New Malden, Chessington, Hook. Standard copper supply pipework with original ground-floor bathrooms or first-floor family bathrooms.

Refits in this stock often involve replacing original cast-iron baths with steel or acrylic, installing thermostatic shower valves where electric showers or basic mixers were original, and upgrading extract ventilation where original openable-window-only ventilation no longer meets modern Approved Document F expectations.⁵⁷

Post-war and council stock — Norbiton (1930s council estate east of Gloucester Road), Old Malden post-war flats and houses. Standard mid-twentieth-century pipework.

For council tenants in council-owned property, bathroom repair is arranged through the Royal Borough of Kingston upon Thames housing service rather than through a private plumber (see “Tenants and landlords” below).

Modern flats and town-centre developments — Kingston upon Thames town centre and riverside, Grove and Knights Park areas. Pressurised mains supply with unvented hot water cylinders, plastic (PEX/PB) push-fit pipework, and concrete floor construction in many modern blocks.

Slab construction limits how far fixtures can be repositioned without major rework. A bathroom leak in an upper-floor flat affecting flats below requires coordination with the building manager, freeholder or managing agent.

Detached and large-plot housing — Coombe, Coombe Hill, Kingston Hill. Typically multiple bathrooms per property, often with unvented hot water cylinders or large cylinder/system arrangements, and en-suites added during prior renovations.

Larger refit scopes, multiple-bathroom-fixture coordination, underfloor heating in new bathrooms, and concealed pipework runs across long property layouts are common.

Smaller Victorian and post-war stock — Hook, parts of Norbiton, Malden Rushett. Mix of older terraces, semi-detached and post-war infill.

Bathroom configurations vary widely between properties, and access for refit work is property-specific.

Hard water and Kingston bathrooms

Kingston is generally supplied with hard to very hard water by Thames Water; confirm the exact hardness for your address using the Thames Water postcode hardness look-up.⁶³

For bathroom fittings and appliances, hard water can:

• Build up limescale on tap aerators and shower heads, reducing flow over time
• Foul thermostatic shower valve cartridges, causing temperature instability or premature failure
• Build up scale visibly on glass shower screens, taps and chrome finishes
• Reduce the efficiency of unvented hot water cylinder coils where scale accumulates over years of service
• Reduce the lifespan of bathroom mixer cartridges and ceramic disc valves

Practical implications for bathroom plumbing:

• Choose thermostatic shower valves with replaceable cartridges where possible — avoid sealed assemblies
• Specify mains-pressure mixers rated for the local water quality
• Consider scale protection at point-of-use for showers (in-line scale inhibitor) where appliance manufacturers recommend it
• Account for scale-driven cartridge replacement in the working life expectancy of any new shower or mixer in this borough

Bathroom drainage in Kingston

Bathroom waste and soil pipework discharges to the foul or combined sewer system. Wastes from baths, basins, showers and toilets must connect to the drainage system at the correct fall and pipe size, with venting where needed to prevent trap-seal loss, in line with Approved Document H.⁵⁸

Thames Water is responsible for public sewers, lateral drains outside the property boundary and shared sewers. Most lateral drains and shared sewers in England and Wales were transferred to water and sewerage companies on 1 October 2011.³¹

The property owner is normally responsible for waste drainage pipes within the property boundary where they serve only that property. If the drain joins a neighbour’s drain, the shared section is normally Thames Water’s responsibility.³¹

Older properties in Kingston’s Victorian and Edwardian stock — Surbiton, Canbury, Kingston town centre, parts of Norbiton — can have ageing clay drain runs vulnerable to cracking, root intrusion and joint settlement, particularly where mature trees are nearby.

Where bathroom waste backs up repeatedly with no internal cause and trap or branch clearance has not resolved it, the issue can be downstream at the drain rather than at the bathroom — see Blocked Drains Kingston.

For extensions or wider works that add a bathroom and also alter drainage layouts, roof drainage, paving or surface-water arrangements, Kingston Council’s planning and building control guidance may require flood-risk and sustainable drainage considerations.

Tenants and landlords: who arranges bathroom plumbing?

Your responsibility for arranging bathroom plumbing depends on the type of tenancy and the type of property.

Council tenants in council-owned property contact the Royal Borough of Kingston upon Thames housing repairs service. Kingston Council retains its council housing stock and runs bathroom repairs directly through its appointed contractor.

Report through Kingston Council’s repairs service. If it is urgent — for example, water escaping that you can’t isolate — call the emergency repairs number shown on the council repair page rather than using the online form.⁷⁴

Leaseholders of Kingston Council blocks have a separate route. The bathroom inside the flat is normally the leaseholder’s responsibility, but communal supply pipework, soil stacks serving multiple flats, and shared drainage may be the freeholder’s responsibility.

For some pre-1988 leases, Kingston Council retains responsibility for the heating and hot-water installation within the flat; for later leases, or where a deed of variation has been granted, the leaseholder is responsible. Check the leaseholders’ handbook on Kingston Council’s website for the responsibility split.

A leak crossing the boundary between leaseholder and freeholder responsibility — for example, a leak from a flat above into the flat below — typically requires coordination with the freeholder, building manager or managing agent.

Housing association tenants contact their housing association.

Private tenants contact the landlord or managing agent first. Section 11 of the Landlord and Tenant Act 1985 requires landlords of dwellings let on a tenancy of less than seven years to keep in repair and proper working order the installations for the supply of water and for sanitation, including basins, sinks, baths and sanitary conveniences — bathroom plumbing faults are within this duty.¹³

The Renters’ Rights Act 2025 commenced key private assured tenancy reforms on 1 May 2026, including the abolition of assured shorthold tenancies for private assured tenancies — Section 11 repair duties continue to apply alongside the new tenancy regime.⁶⁰

The property’s overall condition is also assessed under the Housing Health and Safety Rating System (HHSRS), which covers hazards including damp and mould growth, and personal hygiene, sanitation and drainage.

A bathroom that does not function safely or hygienically can fall below the HHSRS minimum standard.⁶²

Houses in multiple occupation (HMO). Kingston has a substantial private-rented and HMO sector, partly driven by Kingston University. Kingston operates the national mandatory HMO licensing scheme borough-wide for HMOs occupied by five or more people from two or more households — see Kingston Council’s HMO licensing page.⁷⁶

HMO management duties under the Management of Houses in Multiple Occupation (England) Regulations 2006 require water supply and drainage to be maintained and not unreasonably interrupted; mandatory licence conditions in Schedule 4 of the Housing Act 2004 include annual gas safety certification where gas is supplied.⁴⁰ ⁸⁴

Kingston’s HMO standards set minimum bathroom amenity ratios — broadly, one bathroom and one WC per up to five sharing occupants, with separate WC required at six or more — and require water-resistant flooring, suitable heating in bathrooms, and proper ventilation.⁸³

Costs and what to expect from a bathroom plumbing job

Pricing for bathroom plumbing varies widely between a single-fault repair, a like-for-like swap, and a full refit.

Single-fault repair is normally priced as a call-out fee plus an hourly or part-hourly labour rate, with parts charged separately. Most one- to two-hour visits are completed in a single attendance.

Like-for-like swap is normally priced as a half-day or full-day rate including waste removal, with the new fixture supplied either by the customer or through the plumber.

Confirm before booking who supplies the fixture, who is responsible for finish-related work (sealant, splashback), and what is excluded from the quote.

Full bathroom refit / new bathroom is normally quoted as a written, itemised total covering plumbing first fix, plumbing second fix, fixtures (often supplied by the customer), waste removal, electrical interface coordination, and finish coordination.

Tiling, plastering, decoration and second-fix electrics are often quoted by separate trades and added to the plumber’s quote, or coordinated through a project manager.

A typical bathroom refit pricing structure includes:

• Day rate or full-job quote covering first and second fix plumbing
• Fixtures (bath, basin, toilet, shower, taps, accessories) — separately specified
• Tiling, plastering and decoration — typically separate trades
• Electrical work (extract fan, lighting, shaver socket, electric shower wiring) — Part P-registered electrician
• Waste removal — confirmed in the quote
• Commissioning, leak test, sealant — included in the plumber’s scope

Plumbers set their own pricing, so confirm the call-out fee, hourly rate, day rate, parts and fixture cost, and any out-of-hours or weekend premium before authorising the work. Ask for a written or messaged confirmation.

For a fuller breakdown of what to expect on a quote, see the London Plumbing Costs & Compliance Guide 2026 and How to Read a Plumbing Quote.

Kingston-specific cost factors:

• Period property concealed pipework. Concealed runs in chimney breasts, suspended timber floors and boxed-in pipework in Surbiton, Canbury, Kingston town centre and parts of Norbiton’s Victorian and Edwardian stock can take longer to access, and may require period-appropriate reinstatement of finishes
• Lead supply pipework. Slow seepage from corroded lead supply between the inside stop valve and the boundary may surface during refit work — replacement with modern MDPE is a separate, larger job. See Thames Water’s guidance on lead in drinking water.⁸⁰
• Hard-water-driven cartridge wear. Repeat thermostatic shower valve cartridge replacement is common in Kingston’s hard-water context — factor scale-protection options into shower valve specification
• Slab construction in modern flats. Repositioning fixtures in Kingston town centre, Grove and Knights Park developments is constrained by concrete floor construction; some moves are not viable without major structural and waterproofing work
• Mansion block and shared-flat coordination. Refit and repair work affecting communal soil stacks or supply risers needs access cooperation from the building manager, freeholder or managing agent — additional time and access constraints can affect the cost
• Conservation and listed-property reinstatement. Reinstatement of period finishes after access work in listed or conservation-area properties — Surbiton, Kingston Old Town, Norbiton, Coombe — can add substantially to the total cost compared with the plumbing work itself
  The figures below are an editorial estimate only, observed across independent contractors and directories in early 2026. They are not regulated rates, not official market data, and not based on a published cost survey. Pricing varies materially by scope, access, finish complexity and trade coordination. Figures exclude fixtures (supplied separately) and finishing trades (tiling, plastering, decoration) unless explicitly bundled in a project quote.
  Scenario
  Typical range
  Single-fault repair (call-out + first hour)
  £100–£200
  Hourly rate, business hours
  £80–£120
  Hourly rate, evenings/weekends/bank holidays
  £120–£200+
  Tap or mixer cartridge replacement (parts on van)
  £100–£250
  Thermostatic shower cartridge replacement
  £150–£300
  Electric shower replacement (unit + labour, like-for-like)
  £350–£700
  Toilet running-on / fill or flush valve replacement
  £100–£250
  Single fixture like-for-like swap (basin/toilet, half-day)
  £200–£400
  Single fixture like-for-like swap (bath/shower, full-day)
  £400–£800
  Bathroom waste reseal / trap replacement
  £80–£200
  Bath panel investigation + targeted leak repair
  £150–£400
  Concealed leak repair (access work + reinstatement excluded)
  £250–£600+
  Slab leak investigation + repair (modern flat, concrete floor)
  £500–£1,500+
  Full bathroom refit — plumbing first + second fix (mid-range)
  £2,500–£5,500+
  Full bathroom refit — plumbing + tiling + electrics (project total)
  £6,000–£12,000+
  Full bathroom refit — period property with concealed runs
  £8,000–£18,000+
  Extract fan replacement (Part F-compliant, like-for-like)
  £150–£350
  Lead supply pipe replacement (private side) to MDPE
  £1,200–£3,500+
  Out-of-hours emergency minimum
  £180–£350+ minimum
  Full bathroom refits are normally quoted as a project total with itemised scope rather than an hourly rate. Fixtures (bath, basin, toilet, shower, taps) are commonly supplied by the customer and excluded from the plumber’s quote — confirm at survey who supplies what. Tiling, plastering and decoration are typically separate trades; second-fix electrics (extract fan, lighting, shaver socket, electric shower) need a Part P-competent electrician.

For full refits — multi-day jobs with multiple trades — ask for an itemised written quote covering plumbing scope, fixtures, electrical interface, finish coordination and reinstatement before authorising any work.

What a plumber will typically do — and what they won’t

A bathroom plumbing visit normally involves diagnosing the fault or scoping the install from on-site survey, isolating supply at the local isolator or the inside stop valve, replacing failed components or installing new fixtures, pressure-testing supply runs, checking waste falls, sealing and commissioning the work, and reporting on what was found and any follow-up needed.

The plumber should leave the bathroom operating safely with the correct supply and waste, all components functioning, sealant intact and any required follow-up clearly noted.

Directory-listed plumbers cannot:

• Repair Thames Water’s communication pipe — the section of supply pipe from the water main to the property boundary is Thames Water’s responsibility under Thames Water’s pipe responsibility split; report on 0800 316 9800.²² Internal supply pipework, the inside stop valve, and (in most cases) the supply pipe from the boundary to the property are the homeowner’s or freeholder’s responsibility, and a directory plumber attends those
• Repair council-owned bathrooms in Kingston Council blocks or post-war estate stock — those route through the council’s appointed contractor for council tenants; directory plumbers can attend leaseholder-side internal bathroom work in the same blocks, subject to the leaseholders’ handbook responsibility split⁷⁴
• Carry out gas work where the bathroom hot water supply involves a gas combi or gas water heater — gas-side work needs a Gas Safe registered engineer⁵
• Carry out work on an unvented hot water cylinder without holding appropriate unvented hot water competence and certification
• Carry out notifiable electrical work in the bathroom — new circuits, consumer unit replacement, additions or alterations to existing circuits in bathroom special locations (the defined zones around a bath or shower) — without being a Part P-competent person or arranging building control notification⁷ ³⁷
• Alter shared communal soil stacks or supply risers in mansion blocks, converted Victorian and Edwardian houses (common in Surbiton, Canbury and Kingston town centre) or post-war estate stock without freeholder, building-manager or managing-agent permission — a typical Kingston coordination step is to confirm building-manager sign-off before booking the strip-out date for any refit affecting shared services
• Lift historic floors, open lath-and-plaster walls or chase into period fabric in a listed property where the work would affect the building’s special architectural or historic interest, without listed-building consent — common across Kingston Old Town, Surbiton Town Centre, Surbiton Hill Park and Park Road in Norbiton
• Alter external waste runs on a principal or visible elevation in a Kingston conservation area without checking whether planning permission or listed-building consent is required⁷⁸

Why directory-listed plumbers

Every plumber in our directory has been checked for identity, insurance, trading presence and Gas Safe registration where relevant before listing, and rechecked annually. Listing checks are administrative only and do not guarantee workmanship quality or ongoing compliance. For full verification methodology, see How we verify plumbers.

We are not a regulator or certification body; our listing checks do not replace user verification on the day.

For bathroom plumbing work specifically, ask about the plumber’s experience with the specific scope — single-fault repair, like-for-like swap, full refit, or new bathroom — and whether they coordinate the finishing trades (tiling, plastering, decoration) and electrical interface (Part P-registered electrician for extract fan, lighting, shaver socket, electric shower) directly or whether you instruct those separately. For full refits, ask whether the quote covers waste removal and commissioning, and whether fixtures are supplied by the plumber or by you.

For work in mansion blocks, converted Victorian/Edwardian houses, or upper-floor flats where a leak can affect properties below, ask about the plumber’s experience coordinating with building managers, freeholders and managing agents before strip-out — Kingston’s older flat conversions and modern town-centre developments both rely on this coordination working smoothly.

Some plumbers offer workmanship guarantees of 3, 6 or 12 months — look for the badge on the listing. Workmanship guarantees are set by individual plumbers and vary in scope; they are not standardised, and are not insurance-backed unless a plumber explicitly states otherwise. Statutory rights under the Consumer Rights Act 2015 still apply.

Public liability insurance is not a statutory requirement for plumbers, but it is commonly requested by landlords, agents, blocks and commercial clients. It covers third-party injury or property damage arising from the plumber’s work, subject to policy terms and exclusions. For bathroom plumbing — particularly full refits, work in mansion blocks or upper-floor flats where a leak can affect properties below, and substantial system intervention — a plumber’s public liability cover may be relevant if a defect in the work causes further loss. Evidence of public liability insurance was provided at the time of listing; ask the plumber to confirm current cover before instructing significant works.

Listing checks are completed before publication and repeated annually. Always confirm pricing, scope and call-out terms on the call before booking.

Frequently asked questions – Bathroom Plumbing Kingston

Areas covered

• Berrylands (KT5 — most in borough)
• Beverley (KT3 — part in borough)
• Canbury (KT2)
• Chessington (KT9)
• Coombe (KT2)
• Coombe Hill (KT2)
• Hook (KT9 — most in borough)
• Kingston Hill (KT2)
• Kingston upon Thames (KT1, KT2)
• Kingston Vale (SW15 — part in borough)
• Malden Rushett (KT9 — part in borough)
• Motspur Park (KT3 — part in borough)
• New Malden (KT3 — most in borough)
• Norbiton (KT1)
• Old Malden (KT4 — most in borough)
• Seething Wells (KT6)
• Surbiton (KT5, KT6)
• Tolworth (KT5, KT6 — most in borough)
• Worcester Park (KT4 — part in borough)

Related services

• Tap Repair / Installation Kingston
• Toilet Repairs Kingston
• Leak Detection Kingston
• Blocked Drains Kingston
• Burst Pipes Kingston
• Emergency Plumber Kingston

Related guides

• London Hard Water Guide
• London Plumbing Costs & Compliance Guide 2026
• How to Read a Plumbing Quote
• Landlord Plumbing Compliance Checklist
• Victorian Terrace Plumbing Guide
• New Homeowner Plumbing Guide
• Find Your Stop Tap

Sources

⁵ Gas Safe Register — official register of gas engineers. https://www.gassaferegister.co.uk/ ⁷ Approved Document P — electrical safety in dwellings. https://www.gov.uk/government/publications/electrical-safety-approved-document-p ¹³ Landlord and Tenant Act 1985, Section 11 — landlord’s repairing obligations. https://www.legislation.gov.uk/ukpga/1985/70/section/11 ²² Thames Water — pipe responsibility (water supply pipes). https://www.thameswater.co.uk/help/water-and-waste-help/leaks/pipe-responsibility ³¹ Thames Water — Sewer pipe responsibility (lateral drains and shared sewers transferred 1 October 2011). https://www.thameswater.co.uk/help/water-and-waste-help/sewer-flooding/sewer-pipe-responsibility ³⁷ Building Regulations competent person schemes (Part P). https://www.gov.uk/building-regulations-competent-person-schemes ⁴⁰ Housing Act 2004, Schedule 4 — mandatory HMO licence conditions. https://www.legislation.gov.uk/ukpga/2004/34/schedule/4 ⁵⁶ Approved Document G — sanitation, hot water safety and water efficiency. https://www.gov.uk/government/publications/sanitation-hot-water-safety-and-water-efficiency-approved-document-g ⁵⁷ Approved Document F — ventilation. https://www.gov.uk/government/publications/ventilation-approved-document-f ⁵⁸ Approved Document H — drainage and waste disposal. https://www.gov.uk/government/publications/drainage-and-waste-disposal-approved-document-h ⁵⁹ Water Supply (Water Fittings) Regulations 1999. https://www.legislation.gov.uk/uksi/1999/1148/contents/made ⁶⁰ Renters’ Rights Act 2025 (Royal Assent 27 October 2025); the Renters’ Rights Act 2025 (Commencement No. 2 and Transitional and Saving Provisions) Regulations 2026, Regulation 2 — Chapter 1 of Part 1 in force 1 May 2026 for private assured tenancies. https://www.legislation.gov.uk/ukpga/2025/26/contents and https://www.legislation.gov.uk/uksi/2026/421/note/made ⁶² HHSRS — Housing Health and Safety Rating System guidance. https://www.gov.uk/government/publications/housing-health-and-safety-rating-system-guidance-for-landlords-and-property-related-professionals ⁶³ Thames Water — hard water in your area. https://www.thameswater.co.uk/help/water-and-waste-help/water-quality/hard-water ⁷⁴ Royal Borough of Kingston upon Thames — report a council house repair. https://www.kingston.gov.uk/housing/council-tenant-services/tenancy-and-home/report-a-repair ⁷⁶ Royal Borough of Kingston upon Thames — Houses in Multiple Occupation (HMO) licensing. https://www.kingston.gov.uk/landlords-1/house-multiple-occupation-hmo-mandatory-additional-licences ⁷⁸ Royal Borough of Kingston upon Thames — list of conservation areas. https://www.kingston.gov.uk/planning-and-building-control/heritage-and-conservation/conservation-areas/list ⁸⁰ Thames Water — lead in drinking water. https://www.thameswater.co.uk/help/water-and-waste-help/water-quality/lead ⁸³ Royal Borough of Kingston upon Thames — Houses in Multiple Occupation Standards (December 2023), Section 3 (Personal Washing Facilities) and Section 4 (Space Heating). https://www.kingston.gov.uk/sites/default/files/2025-07/HMO_Standards__RBK__December_2023.pdf ⁸⁴ The Management of Houses in Multiple Occupation (England) Regulations 2006 — HMO management duties. https://www.legislation.gov.uk/uksi/2006/372

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Last reviewed: May 2026 by Adiel Khan — SFEDI-accredited business advisor 20+ years experience (South East Enterprise Ltd) and operator of VerifiedPlumbers. [LinkedIn ↗]

This page is checked for compliance and regulatory accuracy against GOV.UK legislation, Thames Water and Royal Borough of Kingston upon Thames guidance. Source links are provided within this page where relevant.