A dripping tap, a tap handle that won’t turn, a corroded isolating valve, or a kitchen mixer that’s past repair — tap work is one of the most common plumbing jobs in Croydon, where hard water is a common contributing factor in seized cartridges, blocked aerators and premature tap wear. Engineers listed here cover Croydon CR postcodes for tap repair, washer and cartridge replacement, and new tap installation.
✅ Gas Safe registration checked against the Gas Safe Register where applicable ✅ Insurance and business identity and contact details verified
✅ Verified by our 16-point process (see how we verify plumbers →)
✅ Covering CR0, CR2, CR5, CR7, CR8, SE25 & SW16
What’s happening with your tap?
- Dripping from the spout when closed → worn washer (traditional tap) or cartridge (monobloc mixer)
- Leaking at the base of the tap → O-ring or base seal
- Stiff or seized handle → scale on the spindle, or failed cartridge
- Low flow from one tap → blocked aerator, scale in the spout, or isolating valve partly closed
- Tap needs replacing (corroded, broken or style change) → installation, often around 30–60 minutes in straightforward cases
- Outside tap / garden tap installation → separate supply with backflow protection
Get a Verified Tap Specialist in Croydon Now →
Every listing is verified at time of listing — Gas Safe registration checked against the Gas Safe Register where applicable, evidence of public liability insurance checked, business identity and named contact validated.
Most dripping or stiff taps are repair jobs with inexpensive parts (washers £1–£3, ceramic cartridges £10–£30); replacement is usually only needed where the tap is corroded, broken or past repair. Many are within DIY scope if the isolating valve works. If the valve is seized, the tap is corroded solid, or the base is leaking, call an engineer. No call centres, no middlemen — you describe the tap type and symptom (photos often help — you don’t need to identify the exact part), confirm price and parts, and book direct.
Common tap faults and what they mean
Traditional taps (separate hot and cold, rubber washer)
- Dripping from the spout — worn rubber washer. Cheap fix once the tap head is off. In hard water areas, the spindle seat may also need re-grinding.
- Leaking from under the handle — gland packing worn; replace or re-pack.
- Stiff handle — scale on the spindle thread. Descale or replace.
Monobloc / mixer taps (single lever, ceramic cartridge)
- Dripping from the spout — worn ceramic cartridge. Cartridges are often brand-specific and not interchangeable — take the old one to the merchant or order online by tap make/model.
- Leak at the base when running — O-ring on the spout swivel, or cartridge seal.
- Handle hard to move — cartridge worn; replacement needed.
All tap types
- Low flow — check the aerator (unscrew the end of the spout and clean the mesh). Scale is usually the cause.
- No flow at all — isolating valve fully closed, or blocked. Check under the sink first (the small valve on the pipe feeding the tap, usually turned with a flathead screwdriver) before calling an engineer.
- Tap wobbling on the sink — the fixing nut underneath has come loose. Usually a straightforward tighten.
Hard water and tap wear in Croydon postcodes
Croydon is within Thames Water’s supply area, where water is generally hard. Thames Water confirms hard water can lead to limescale build-up on household appliances and fittings.¹
In practice, this means:
- Aerators clog — the fine mesh at the end of the spout fills with scale, reducing flow. Unscrew and soak in white vinegar or descaler.
- Ceramic cartridges seize — scale builds up around the moving parts. Lifespan is shorter than in soft-water areas.
- Chrome plating pits and dulls — scale and chemical descalers can both damage the finish over time.
- Isolating valves seize — valves that never get used can be impossible to turn when needed. Open and close them occasionally as part of annual plumbing checks.
A scale inhibitor on the mains supply won’t stop scale forming inside taps but may help reduce build-up in some systems, with effectiveness varying. Installing a water softener (separate job, significant cost) is the only way to remove hardness entirely.
Replacing a tap — what to expect
A like-for-like tap replacement in a standard sink or basin often takes 30–60 minutes in straightforward cases, assuming:
- the isolating valves under the sink work
- the existing pipe tails line up with the new tap
- the fixing nut can be undone (often the hardest part in old installations)
If any of those are wrong, the job can escalate: new flexible tails, a new isolating valve, or cutting off a seized fixing nut. Ask the engineer to confirm what’s included in the quote, and what’s charged extra if complications arise.
Choosing a tap: most UK sinks and basins use standard tap hole sizes, but always check compatibility. Check the minimum pressure rating (bar) against your system — a tap designed for high-pressure mains may perform poorly on a gravity-fed hot supply from a cold water tank (common in older Croydon properties with upstairs cylinders).
Some engineers hold Water Regulations Advisory Scheme (WRAS) or Water Regs qualifications — ask if required for your installation, particularly for outside taps or any work involving the cold mains supply.
Outside taps and garden tap installation
An outside tap is a separate supply taken off the cold mains, with backflow protection (typically a double-check valve) to stop garden water contaminating the drinking supply. Installation is often completed within a few hours in straightforward cases and should include:
- isolating valve on the new branch inside
- double-check valve compliant with Water Regulations
- freeze-proof bib tap or conventional tap with lagging
- through-wall fitting properly sealed
Installing a garden tap without appropriate backflow protection may breach the Water Supply (Water Fittings) Regulations 1999, which require prevention of contamination. A suitable device — typically a double-check valve — is usually required. Ask the engineer to confirm the arrangement.
Council tenants in Croydon — tap repair route
If you live in a Croydon Council home, tap repairs go through the council, not a private engineer.
Call 020 8726 6100 for general housing repairs, or 020 8726 6101 for emergency repairs (24/7).²
Private tenants in Croydon — landlord obligations
Tap repairs in a rented property are generally the landlord’s responsibility, as part of keeping water and sanitation installations in working order. Report the fault to your landlord or letting agent first, in writing.
If your landlord does not respond, Croydon Council’s Private Sector Housing Team can intervene on 020 8760 5476.³
Keep photographs, texts and emails — the council will ask to see evidence of what you reported and how your landlord responded.³
What tap repair and installation costs in Croydon
Indicative estimates based on recent London jobs and market observations (2025–2026), not regulated rates — no official pricing data exists for private tap work. Always confirm pricing before work begins. Actual costs vary by tap type, access, part type and whether additional pipework is needed. VAT may apply.
| Service | Typical range (London) |
|---|---|
| Washer replacement (traditional tap) | from £95 |
| Ceramic cartridge replacement (monobloc mixer) | from £110 |
| Tap installation (like-for-like swap, supplied by you) | from £120 |
| Tap installation (supply and fit) | from £150 + tap cost |
| Isolating valve replacement | from £90 |
| Outside tap installation (with check valve) | from £220 |
Parts alone (washers, cartridges) cost £1–£30 at DIY and plumbing merchants if you’re fitting yourself. Engineer prices above typically include parts, labour and a callout — confirm before booking.
See the full London Plumbing Costs Guide →
Why verified engineers — not a general directory
Engineers listed here are verified at time of listing — the checks below are completed before the profile goes live.
What we check before an engineer is listed in Croydon:
- Identity and trading details — we confirm the business is legitimately trading, verify the registered business name, and verify the business identity and named contact behind the listing. No anonymous profiles go live.
- Gas Safe registration — where a plumber offers gas work, we confirm their Gas Safe registration number directly with the Gas Safe Register, checked against the engineer’s name and the specific gas work categories they are qualified to carry out.
- Public liability insurance — every listed engineer is required to hold public liability insurance, and evidence of cover is checked at the point of listing.
- Service coverage — we confirm the engineer actually covers Croydon CR postcodes before approving the profile.
Profiles are removed if credentials lapse or credible concerns are raised.
See the full verification process — Gas Safe, insurance, identity and service area checks →.
No middleman fees — every lead goes directly to the engineer.
We limit listings per borough so every engineer gets fair, equal visibility.
Frequently asked questions — Tap Repair & Installation Croydon
Traditional taps (with two handles for hot and cold) usually have rubber washers. Monobloc mixer taps (one lever) have a ceramic cartridge. Kitchen mixer taps are almost always cartridge-based; a dripping spout means a cartridge replacement.
If you’re not sure what type of tap you have, take a photo and describe it to the engineer when you call.
A like-for-like swap in a standard sink is typically 30–60 minutes if the isolating valves work and the fixing nut isn’t seized. Older Croydon properties with corroded fittings can take longer — ask for a scope-based quote rather than a fixed time.
A confident DIYer can often swap a tap if the isolating valves under the sink (small valves on the pipes feeding the tap, usually turned with a flathead screwdriver) work and the existing connections aren’t seized. The hardest part is usually the fixing nut underneath the sink, where access is tight.
If the valves are seized or you can’t turn off the water cleanly, call an engineer — cutting the water off at the main stop tap and draining the system is harder in older properties.
Not planning permission, but the installation must comply with the Water Supply (Water Fittings) Regulations 1999, including fitting appropriate backflow protection (typically a double-check valve). A competent engineer will handle this as standard. If you’re on a water meter, an outside tap may affect your billing.
Call Croydon Council’s housing repairs service on 020 8726 6100, or 020 8726 6101 for emergencies.² Don’t arrange a private engineer.
Tap Repair & Installation across Croydon — areas we cover
- Tap Repair Croydon town centre
- Tap Repair Addiscombe
- Tap Repair Thornton Heath
- Tap Repair South Norwood
- Tap Repair Norbury
- Tap Repair Purley
- Tap Repair Coulsdon
- Tap Repair Sanderstead
- Tap Repair Shirley
- Tap Repair Selhurst
Related services
- Bathroom Plumbing Croydon
- Kitchen Plumbing Croydon
- Leak Detection Croydon
- General Plumbing Croydon
- Emergency Plumber Croydon
From a dripping kitchen mixer in a Thornton Heath Victorian terrace to a seized bathroom tap in a Coulsdon semi or a new outside tap installation in a Purley garden — every engineer listed here is verified at time of listing and covers Croydon postcodes.
Get a Verified Bathroom Plumber in Croydon Now →
Sources & further reading
¹ Thames Water — Hard water https://www.thameswater.co.uk/help/water-and-waste-help/water-quality/hard-water ² Croydon Council — Repair priorities https://www.croydon.gov.uk/housing/information-council-tenants/housing-maintenance-and-safety/repairs-council-homes-0/repair-priorities ³ Croydon Council — How to report disrepair to your landlord https://www.croydon.gov.uk/housing/private-tenants/how-report-disrepair-your-landlord