A dripping tap wastes water and adds to your bill every day it is left unfixed. In Greenwich’s hard water area, replacing the cartridge without addressing the cause can lead to the same fault returning within a few years. Every plumber listed here is verified and locally based — tap repairs done properly, with the cause fixed, not just the symptom.
✅ Public liability insurance, business and ID verified before listing
✅ Work guarantees available — confirm with your plumber
✅ Covering SE3, SE7, SE9, SE10, SE18 & surrounding areas
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Every listing is verified before it goes live — insurance checked, service coverage confirmed and contact details validated before approval.
Installing a new tap? Check the water pressure in your property before buying — a tap specified for high pressure will not perform correctly on a gravity-fed system. Call 2–3 plumbers before you purchase.
Tap repair vs tap installation — which do you need
Tap repair covers any fault with an existing tap — dripping from the spout, leaking at the base, a tap that is stiff or will not turn fully, a mixer tap that runs hot when set to cold, or a tap that will not fully shut off.
Most tap repairs involve replacing the internal cartridge or washer — a 30–60 minute job in most cases.
Greenwich Council classifies a tap that cannot be turned on or off at all as an urgent repair requiring attention within one to five working days for council properties.¹ Most private plumbers listed here can attend the same day.
Tap installation covers fitting a new tap — replacing a like-for-like unit, upgrading from individual pillar taps to a monobloc mixer, fitting a new kitchen tap with filtered water or boiling water function, or installing taps as part of a wider bathroom or kitchen refurbishment.
Installation time varies from one hour for a straightforward swap to half a day where pipework needs adapting or supply pressures need balancing. Most tap repairs and tap installations in Greenwich can be completed in one visit if the correct parts are available.
If your tap is dripping, stiff or leaking — that is a repair. If you want a different tap in a different style — that is an installation. If you are not sure whether your existing tap is worth repairing or better replaced, a plumber can tell you within the first visit.
What causes tap faults in Greenwich properties
A primary factor in Greenwich is hard water — and it affects taps differently depending on their age and type.
Ceramic disc cartridges — the internal mechanism in most modern taps — are vulnerable to hard water damage. Thames Water classifies Greenwich’s SE postcodes as hard water.² Limescale deposits onto the ceramic disc faces, preventing them from sealing cleanly and causing the drip that worsens over time.
In Greenwich’s hard water postcodes, a new cartridge can lead to the same fault returning within a few years if the root cause is not addressed. For new tap installation in Greenwich, this is worth discussing with your plumber before specifying fixtures.
Rubber washers — found in older pillar taps across Victorian terraces in Charlton, Plumstead and Eltham — harden with age and heat exposure. A dripping hot tap with a rubber washer mechanism almost always needs the washer replaced — a simple and inexpensive repair.
Mixer tap O-rings and body seals — the seals around the spout base and body of a mixer tap — fail from limescale build-up over time. A mixer tap leaking at the base rather than the spout has a failed O-ring, not a cartridge fault. Different diagnosis, different part, different repair.
In newer properties across the Greenwich Peninsula and Woolwich, thermostatic bar mixer taps and concealed valve systems require manufacturer-specific cartridges for premium brands — not generic parts. A plumber who carries the correct replacement saves a wasted visit.
A factor often overlooked before buying a new tap
Greenwich’s housing stock runs at two very different pressure profiles.
Victorian terraces across Blackheath, Charlton and Plumstead — particularly those with gravity-fed hot water systems and cold water tanks in the loft — often deliver very low pressure on the hot supply, often well below 0.5 bar. Most modern monobloc mixer taps require higher pressure to perform correctly — exact requirements vary by model — and on a gravity-fed system without a pump, the hot side will deliver significantly reduced flow regardless of how the tap is specified.
Modern apartments on the Greenwich Peninsula and in Thamesmead run on mains-pressure systems, but thermostatic taps still require balanced inlet pressures to function correctly.
The rule before buying any new tap for a Greenwich property: confirm whether your hot water supply is gravity-fed or mains pressure, and check the minimum operating pressure on the tap specification. A plumber can confirm both in two minutes.
What to expect from a tap repair or installation visit
For a repair: the plumber inspects the tap, identifies whether the fault is the cartridge, washer, O-ring or body seal, and in most cases carries the replacement part.
Standard ceramic cartridges, rubber washers and O-rings are van stock. Manufacturer-specific cartridges for premium brands may require ordering — your plumber will confirm before the visit if you give them the tap make and model.
For an installation: the plumber isolates the supply, removes the existing tap, checks supply pressures, fits and connects the new unit, tests for leaks and correct function, and confirms water pressure is adequate for the new tap’s specification.
In older Woolwich and Plumstead terraces, original imperial pipework — typically 1/2 inch and 3/4 inch — requires specialist universal couplers to transition to modern 15mm or 22mm tap tails. Standard metric fittings may not seal correctly on these older pipe gauges without the appropriate adaptor, and this is quoted and agreed before work begins.
When replacing individual pillar taps with a monobloc mixer on a Victorian bath or basin, a tap hole stopper or capping nut is required to cover the redundant second hole cleanly — a detail worth confirming is included in the installation quote.
For kitchen taps with filtered water, boiling water or pull-out spray functions, confirm with your plumber that under-sink space can accommodate the additional equipment before purchasing.
Before the plumber arrives: know the make and model of your existing tap if possible, have the new tap available if already purchased, and know where the isolation valve is for the relevant supply.
💡 Pro tip: In Greenwich’s hard water area, fit an inline scale filter on the cold supply to any new tap — particularly kitchen taps and bathroom mixer taps. It can significantly extend the life of ceramic cartridges and helps prevent the limescale build-up that causes most tap faults in SE postcodes. A plumber can fit one at the same time as a tap installation for a modest additional cost.
What tap repair and installation costs in Greenwich — 2026
Typical London 2026 ranges. Actual costs vary by tap type, fault and whether pipework adaptation is required. No official pricing data exists for private tap repairs — always obtain multiple written quotes before work begins.
| Service | Typical London range 2026 |
|---|---|
| Tap repair diagnostic visit | £120–£180 |
| Cartridge or washer replacement (standard) | £120–£180 supply and fit |
| Manufacturer-specific cartridge (premium brands) | £150–£250 supply and fit |
| O-ring or body seal replacement | £100–£160 supply and fit |
| Like-for-like tap replacement | £150–£220 fitting only |
| Monobloc mixer tap installation | £180–£300 fitting only |
| Pipework adaptation (imperial to metric) | £80–£150 additional |
Typical straightforward tap repair in Greenwich: £130–£180 all-in for most single-fault jobs resolved within one visit.
Every plumber listed here confirms pricing before work begins. If a tap is beyond economic repair, they will tell you before replacing the cartridge.icing before work begins. If a tap is beyond economic repair, they will tell you before replacing the cartridge.fore work begins. If a tap is beyond economic repair, they’ll tell you before replacing the cartridge.
Frequently asked questions — Tap Repair & Installation Greenwich
Depends on the tap’s age and type. A modern ceramic disc tap under ten years old is almost always worth repairing — a cartridge replacement costs a fraction of a new tap and takes under an hour. An older pillar tap with a rubber washer is similarly cheap to fix.
A premium designer tap with a non-standard cartridge may be worth replacing if the cartridge cost approaches the price of a new unit. In Greenwich’s hard water area, also ask your plumber about fitting an inline scale filter at the same time — otherwise the same cartridge fault can return within a few years.
In Greenwich’s hard water postcodes, a stiff tap is almost always limescale build-up on the cartridge or valve seat restricting movement. In older pillar taps, a hardened rubber washer can produce the same symptom.
In both cases the fix is internal — replacing or descaling the mechanism, not replacing the tap. A plumber will confirm which on the same visit.
Yes — but confirm two things first. Check that your water pressure is compatible with the new tap’s minimum operating pressure before the plumber attends.
And if the tap requires any pipework changes — different connection sizes, repositioned supplies, new isolation valves, or imperial-to-metric transitions in older Greenwich properties — these need to be scoped and agreed before the visit.
Usually a failed cartridge that is no longer directing hot and cold correctly, or a thermostatic cartridge that has lost its temperature calibration.
In some cases on gravity-fed systems in Greenwich Victorian terraces, unequal pressure between hot and cold supplies allows hot water to cross over to the cold side through the mixer — a pressure balancing issue rather than a cartridge fault. A plumber can diagnose which within the first visit.
In soft water areas, ceramic disc cartridges can last many years with proper maintenance. In Greenwich’s hard water postcodes, cartridge lifespan is typically reduced compared to soft water areas, particularly in properties without scale protection.
Fitting an inline scale filter on the cold supply at the time of cartridge replacement can extend the next cartridge’s lifespan and is a practical way to address the root cause rather than just the symptom.
Areas We Cover
Tap repair and installation plumbers on this directory cover the full Greenwich borough. Find local help below:
- Tap Repair & Installation Charlton
- Tap Repair & Installation Woolwich
- Tap Repair & Installation Eltham
- Tap Repair & Installation Blackheath
- Tap Repair & Installation Kidbrooke
- Tap Repair & Installation Abbey Wood
- Tap Repair & Installation Thamesmead
- Tap Repair & Installation Plumstead
- Tap Repair & Installation Shooters Hill
- Tap Repair & Installation North Greenwich
Related Services
Related guides
- London Plumbing Costs Guide 2026
- London Hard Water Guide
- Victorian Terrace Plumbing Guide
- New Homeowner Plumbing Guide
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A dripping tap in a Plumstead terrace or a Thamesmead apartment wastes water and adds to your bill every day it runs. In Greenwich’s hard water area, a new cartridge without addressing the cause is the same repair in a few years. Fix it properly once. Work guarantees available — confirm with your plumber.
Get a Verified Tap Repair Plumber in Greenwich Now →
Sources & further reading
¹ Royal Borough of Greenwich — How long it takes to repair a problem https://www.royalgreenwich.gov.uk/housing/request-repair/how-long-it-takes-repair-problem
² Thames Water — Hard water https://www.thameswater.co.uk/help/water-and-waste-help/water-quality/hard-water
Last reviewed: April 2026r