Fitting a kitchen sink or tap, plumbing in a dishwasher or washing machine, or sorting the plumbing for a new kitchen? This page connects you with verified, insured plumbers across Havering who handle kitchen plumbing, from Romford and Hornchurch to Upminster and Rainham.

✅ Checked before listing — identity, insurance, trading presence, Gas Safe (where relevant).
How we verify →
✅ Workmanship guarantee badges on listings — 1, 3, 6 or 12 months

Kitchen plumbing ranges from a single tap or appliance connection to the full plumbing for a new kitchen, so pricing and timescales vary by job — confirm the scope with the plumber before booking.

→ Find a verified Havering kitchen plumber — see the verified list below.

Coverage: RM1, RM2, RM3, RM4, RM5, RM6, RM7, RM11, RM12, RM13, RM14 — Romford, Gidea Park, Collier Row, Harold Hill, Harold Wood, Hornchurch, Elm Park, Upminster, Cranham, Rainham, South Hornchurch and the rural-edge villages.
Kitchen plumbing covered: fitting and replacing sinks, kitchen taps and mixers, boiling-water and filtered taps, plumbing in dishwashers and washing machines, fitting water softeners and under-sink filters, waste, trap and standpipe work, isolation valves, and the plumbing first-fix and second-fix for a kitchen installation — including moving the sink or appliances. For kitchen plumbing in Havering, use the verified list above.
Got a single specific job? Go straight to the right page: one dripping or stiff tap → Tap Repair & Installation; a blocked sink → Blocked Drains; damp or water with no obvious source → Leak Detection; the bathroom rather than the kitchen → Bathroom Plumbing. This page is for fitting and replacing kitchen fixtures and appliances, and the plumbing of a kitchen refit.
Connecting a gas hob or cooker? That’s gas work, not kitchen plumbing — it must be done by a Gas Safe registered engineer (the plumbing of the sink and appliances is separate). See Boiler Repair for how gas work is verified.
Costs: see What it costs ↓ for an editorial estimate.

Jump to: What kitchen plumbing covers ↓ · Dishwashers, washing machines & appliances ↓ · Hard water & the kitchen ↓ · The rules on a kitchen ↓ · By district ↓ · What it costs ↓ · FAQs ↓

What kitchen plumbing covers

“Kitchen plumbing” runs from a single fixture swap to the whole water side of a new kitchen. The common jobs:

• Sinks and taps — fitting or replacing a sink, and the tap to go with it: a standard mixer, a mono mixer, or a feature tap like a boiling-water or filtered tap (which need their own under-sink unit and supply).
• Dishwashers and washing machines — plumbing in the supply and waste, fitting the right isolation valve and making sure the waste connects correctly so the appliance doesn’t leak or siphon (more below).
• Water softeners and filters — fitting a softener (worth considering on Havering’s hard water) or an under-sink drinking-water filter, plumbed in with the right valves and bypass.
• Waste, traps and the standpipe — fitting the sink trap, appliance standpipe and waste runs at the correct fall, so everything drains and nothing backs up.
• Isolation valves — fitting in-line valves so the sink, tap or each appliance can be shut off on its own for any future repair, without draining the house.
• A full kitchen refit’s plumbing — the first-fix (pipework and waste roughed in before units go in) and second-fix (connecting the sink, tap and appliances once the kitchen’s fitted), plus moving the sink or appliance positions where the layout changes.

A kitchen refit usually means coordinating with a kitchen fitter, an electrician and sometimes a gas engineer (for a hob) — so it’s worth being clear who’s sequencing the trades. If you’ve just moved in, our new homeowner plumbing guide covers the basics of finding your stop tap and isolation valves.

Dishwashers, washing machines and appliances

Plumbing in a kitchen appliance looks simple, but it’s two separate jobs — the water supply in, and the waste out — and each has its own rule.

• The supply (water in). Connected through an appliance isolation/servicing valve so it can be shut off on its own — the Water Regulations guidance expects a servicing valve on the inlets to appliances like washing machines and dishwashers, exactly so future maintenance doesn’t mean draining down. On the drinking-water side, a washing machine or dishwasher is treated as a backflow risk and needs backflow protection appropriate to that risk; modern appliances are generally built to comply, and a plumber confirms the connection does too. According to Water Regs UK, the protection must be matched to the downstream fluid-category risk.⁴
• The waste (water out). A separate matter from the supply: the appliance waste discharges via a trap spigot or a standpipe with an air gap at the right height, so dirty water can’t siphon back into the machine or back up out of the sink. This is a drainage arrangement — it stops waste siphonage and backup, and is not the same thing as the supply-side backflow protection above.
• Fridge-freezers with a water or ice connection. A lower-risk supply connection that needs a single check valve, so water can’t flow back from the appliance into your drinking supply.

Getting the isolation valve, the supply protection and the waste air gap each right is the difference between an appliance you can service easily and a slow leak you discover when the kickboard’s already swollen. And keep them reachable: appliance valves, trap connections and waste spigots should stay accessible after the units and kickboards go in.

Hard water and the kitchen

The kitchen is where Havering’s hard water is most visible day to day. Many Havering homes are on a hard-water supply, including Essex & Suffolk Water’s hard-water area, where the company confirms hardness leaves limescale.¹ In the kitchen that means scale on the kettle and inside the dishwasher, furred-up tap aerators, and stiffening mixer cartridges — and it’s the reason some Havering kitchens end up with a water softener or an under-sink filter. A plumber can advise whether a softener suits the home (and will keep at least one tap supplying unsoftened drinking water, as the rules require — see below), or fit a simple drinking-water filter on the kitchen tap. Our London hard water guide explains the options.

The rules on a kitchen {#rules}

The kitchen is the one room the Water Supply (Water Fittings) Regulations single out — because it’s where your drinking water comes from.

You must have a drinking-water tap over the kitchen sink. The Regulations require that premises supplied with water for domestic purposes have at least one tap for drawing drinking water, which in a house should be located over the kitchen sink and supplied direct from the incoming main (the “wholesome water” point).² It’s why, if you fit a water softener, the plumber keeps the kitchen drinking-water tap on the unsoftened mains supply.

Fittings must be of an appropriate quality. Under Regulation 4 of the Regulations, water fittings must be of an appropriate quality and standard; in practice that means Regulation 4 compliant fittings, with WRAS (or equivalent, such as KIWA or NSF) approval used as evidence of compliance.³

Backflow protection is matched to the risk. The Regulations require every water system to contain adequate devices to prevent backflow of fluid into the supply, with the device appropriate to the highest applicable fluid category.⁵ In a kitchen that’s why a washing machine or dishwasher water inlet needs protection matched to its risk, and a fridge or ice-maker connection needs a check valve — separate from the appliance waste, which uses an air gap to stop drainage backup.

If you rent, kitchen plumbing in disrepair is normally the landlord’s responsibility. Under Section 11 of the Landlord and Tenant Act 1985, a landlord must keep in repair and proper working order the installations for the supply of water and for sanitation, including sinks.⁶ So report a faulty kitchen sink, tap or supply to your landlord or letting agent.

Find a verified kitchen plumber by district

Havering is an outer-London suburban borough, with many suburban houses alongside flats, maisonettes and newer developments — and kitchen plumbing here reflects the local stock and its hard-water supply. Here’s the local picture.

Romford (RM1, RM2, RM7) — town-centre flats above shops and a wide spread of suburban housing in Gidea Park, Rise Park and Mawneys. In flats and maisonettes, a kitchen is often compact with appliances packed under a single run, so isolation valves and tidy waste connections matter — and in flats above shops or town-centre blocks, a plumber may need to confirm whether the kitchen waste joins a shared stack before moving the sink or dishwasher.

Hornchurch & Elm Park (RM11, RM12) — Hornchurch and Elm Park include a lot of inter-war-style suburban housing, often with older kitchens being refitted and original pipework that may need updating as part of the job. These are also homes where a water softener is a common addition against the hard water.

Upminster & Cranham (RM14) — larger suburban homes, often with bigger kitchens, more appliances (and sometimes a utility room with a second washing-machine point), so more supply and waste connections to get right.

Rainham, South Hornchurch & Beam Park (RM13) — older stock beside new-build Beam Park homes. New-builds often have newer kitchen plumbing and may already have appliance isolation valves in place, but a plumber should still check before fitting; older Rainham kitchens more often need pipework and valves brought up to date during a refit.

Harold Hill, Harold Wood & Collier Row (RM3, RM5) — post-war estate housing, maisonettes and flats, with a mix of owner-occupied and rented homes, often compact kitchens. In flats and maisonettes, an appliance leak under the units can reach the home below, so a proper isolation valve and waste connection matter — and valves and traps should stay reachable once the kickboards are on.

Gidea Park, Emerson Park & the rural edge (RM2, RM4) — larger detached houses, often with bigger kitchens, islands and more appliances. A sink in an island can mean a long waste run through the floor, so a plumber needs to confirm there’s enough fall back to the stack before the layout’s agreed. Out toward Havering-atte-Bower, Noak Hill, Corbets Tey and North Ockendon, rural-edge homes can have older or extended plumbing, so a verified plumber will check what’s there before quoting.

If you’re near the Romford / Barking & Dagenham boundary at Rush Green, confirm your postcode is RM and within Havering before booking.

What it costs

The figures below are an editorial estimate only, to help you sense-check a quote — they are not regulated rates, not market data, and not a published cost survey. Always confirm the price before work starts, and see how to read a plumbing quote and our London plumbing costs guide.

A full kitchen refit’s total is much higher once units, worktops, electrics and appliances are included — the range above is the plumbing element only. Havering is outside the central London Congestion Charge zone, but like every Greater London borough it sits inside the London-wide Ultra Low Emission Zone (ULEZ), which the TfL ULEZ scheme operates across all London boroughs (excluding the M25 itself). A non-compliant vehicle may incur the daily charge, so it’s reasonable to ask whether any emissions-zone charge is included in a quote.⁷

When you contact a plumber from this directory, you can ask about availability, whether they handle just the plumbing or coordinate the whole refit, whether the appliance or tap is supplied or supply-only, and whether a water softener suits your home — you’re not obliged to proceed until you’ve agreed the scope. VerifiedPlumbers is a directory that connects you with verified plumbers; it doesn’t carry out the work itself.

A kitchen is a deceptively involved bit of plumbing — the sink and tap, the appliances and their waste and isolation, sometimes a softener or filter, and the one tap the rules insist on for drinking water. The details that matter are the ones you don’t see once the units are in: proper isolation valves, the right supply-side and waste-side protection kept separate, and the drinking-water supply kept clean. The verified plumbers listed above handle kitchen plumbing across the Havering RM postcodes listed above, each one checked for identity, insurance and, where they work on gas, Gas Safe registration.

↑ Find a verified Havering kitchen plumber — see the verified list above.

← Back to all plumbing services in Havering

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 the bodies and regulations cited on it — the Water Supply (Water Fittings) Regulations 1999, WRAS, Water Regs UK, the HSE, Essex & Suffolk Water, the Landlord and Tenant Act 1985 and Transport for London. Source links are provided within this page where relevant.

Sources & further reading

1. Essex & Suffolk Water — Hard water (confirms a hard-water supply area; limescale forms from hard water). https://www.eswater.co.uk/hardwater
2. The Water Supply (Water Fittings) Regulations 1999, Schedule 2 (water for domestic purposes) (premises supplied with water for domestic purposes must have at least one tap for drawing drinking water, located in a house over the kitchen sink and supplied from the incoming main). https://www.legislation.gov.uk/uksi/1999/1148/schedule/2/crossheading/water-for-domestic-purposes/made
3. The Water Supply (Water Fittings) Regulations 1999, Regulation 4 (water fittings must be of an appropriate quality and standard; WRAS or equivalent approval used as evidence of compliance). https://www.legislation.gov.uk/uksi/1999/1148/regulation/4
4. Water Regs UK — Backflow protection (backflow protection prevents contaminated fluid flowing back into the water system, and the device or arrangement must be rated to the highest applicable downstream fluid-category risk; washing machines are a recognised point-of-use backflow example). https://www.waterregsuk.co.uk/topics/backflow-protection/
5. The Water Supply (Water Fittings) Regulations 1999, Schedule 2 (Backflow prevention, paragraph 15) (every water system shall contain an adequate device for preventing backflow, appropriate to the highest applicable fluid category). https://www.legislation.gov.uk/uksi/1999/1148/schedule/2/crossheading/backflow-prevention/made
6. Landlord and Tenant Act 1985, Section 11 (landlord’s duty to keep in repair and proper working order the installations for water supply and sanitation, including sinks). https://www.legislation.gov.uk/ukpga/1985/70/section/11
7. Transport for London — Ultra Low Emission Zone (ULEZ operates across all London boroughs, excluding the M25; daily charge for non-compliant vehicles). https://tfl.gov.uk/modes/driving/ultra-low-emission-zone
8. HSE — Gas safety (home owners) (anyone employed to work on gas appliances in domestic premises must be a Gas Safe registered engineer). https://www.hse.gov.uk/gas/domestic/faqownerocc.htm