A full bathroom refit, a shower pump replacement, a new basin in a Purley ensuite, or fixing a mystery leak through the kitchen ceiling — bathroom plumbing covers everything from single-item swaps to multi-day installations. Engineers listed here cover Croydon CR postcodes for bathroom plumbing work.
✅ 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 kind of bathroom plumbing job is it?
- Single fixture (tap, toilet, shower valve) → see Tap Repair, Toilet Repairs
- Shower not working, weak flow, or leaking → pump, valve, thermostatic cartridge or shower tray seal
- Leak through a ceiling below the bathroom → shower tray, waste, soil pipe or hidden pipework
- Basin, bath or shower replacement → 1–2 day job, same location
- Full bathroom refit → strip out, rewire, plumbing, tiling, sanitaryware — typically 1–2 weeks
- Croydon Council tenant → call 020 8726 6100 for repairs; do not arrange a private refit
Get a Verified Bathroom Plumber in Croydon Now →
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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.
Bathroom plumbing ranges from a 20-minute shower cartridge swap to a two-week refit. Get scope, day-by-day timeline, and a written quote before work begins — especially for refits where tiling, electrics and plumbing overlap. No call centres, no middlemen — you contact the engineer directly, describe the job, and agree scope and price before booking.
Single-item bathroom plumbing jobs
Showers
- Electric shower faults — unit failure, fuse tripping, weak flow or cold water only. Electric showers are usually replaced as a unit rather than repaired.
- Mixer / thermostatic shower faults — worn cartridge, failed thermostat, scale build-up. Cartridge replacement is often possible; severe scale damage may need full valve replacement.
- Shower pump failure — gravity-fed systems in older Croydon properties often use a pump to boost pressure. Pumps have a limited lifespan and are replaced rather than repaired.
- Shower tray / enclosure leaks — silicone seal failure, cracked tray, or waste leak. Often shows up as staining on the ceiling below.
Basins, baths and toilets
- Basin or bath replacement — typically 2–4 hours if the existing waste and supply positions are re-used. Longer if repositioning.
- Toilet issues — see Toilet Repairs Croydon for cistern and pan-specific work.
- Waste trap blockages — see Blocked Drains Croydon if clearing the trap doesn’t fix it.
Valves and fittings
- Isolating valves — small valves on each fixture’s supply, essential for safe repair work. Replace any that are seized during bigger jobs.
- Flexible tails — often need replacing during tap or toilet changes; cheap parts, easy work.
Bathroom refits — what to expect
A full bathroom refit is a multi-trade project. Plumbing is only part of it; tiling, electrics, extraction fans, flooring and making good all play a role. A typical sequence:
- Strip out — remove existing sanitaryware, tiles, flooring (day 1)
- First fix plumbing and electrics — pipework and wiring in place for new layout (days 2–4)
- Wall preparation and tiling — board, waterproof, tile (days 4–7)
- Second fix plumbing and electrics — install sanitaryware, taps, shower, lights (days 7–9)
- Sealing, testing and snagging — silicone, flush-through, leak checks (days 9–10)
Timings vary widely. A small ensuite with no layout change can be done in 5 working days; a family bathroom moving the toilet, changing the shower to a walk-in and retiling can take 2–3 weeks.
Who does what: some engineers handle the whole refit as a project; others do the plumbing only and work alongside a tiler and electrician you’ve booked separately. Clarify this before agreeing the quote — a quote for “bathroom refit plumbing” is not the same as a quote for a “complete bathroom refit.”
Electrics in bathrooms: bathroom electrical work is subject to Part P of the Building Regulations, requiring notification or certification by a qualified electrician. Any engineer quoting for a full refit should confirm who is handling electrical compliance.
Shower performance — pressure and flow in Croydon properties
Shower performance depends on two things: the supply (pressure and flow rate) and the shower unit itself.
Mains-fed (high-pressure) system: most newer Croydon properties and modern refits run off the cold mains, producing 2–3+ bar pressure. Any modern shower will work well.
Gravity-fed (low-pressure) system: older properties with a cold water tank in the loft supplying the bathroom may produce only 0.1–0.5 bar at the shower head. Typical issues:
- electric showers work fine (they boost the incoming cold mains)
- mixer showers run weak unless a pump is fitted
- thermostatic showers may not meet their minimum pressure requirement
If your shower runs weakly, check whether you have a pump (usually in the loft or airing cupboard) — if it’s failed, that’s the issue. If there’s no pump and you want stronger flow, a pump installation is typically a 2–4 hour job.
Unvented cylinders: some Croydon properties have unvented hot water cylinders supplying high-pressure hot water throughout. These have specific safety requirements and must be maintained annually by a G3-qualified engineer. Any engineer working on an unvented cylinder should hold a current G3 certificate — ask to see it.
Hard water and bathroom plumbing 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 bathrooms this shows up as:
- scale on shower heads and aerators (regular descaling helps)
- shower valve cartridges seizing or leaking over time
- limescale marks on glass and chrome
- scale in hot water cylinders, reducing efficiency
Ask your installer about scale-reducing fittings (inline inhibitors, magnetic filters) if you’re doing a full refit — fitting them during installation is far easier than retrofitting later.
Council tenants in Croydon — bathroom repair route
If you live in a Croydon Council home, bathroom plumbing repairs go through the council, not a private engineer. Full bathroom refits in council properties are handled through the council’s planned maintenance programme.
Call 020 8726 6100 for general housing repairs, or 020 8726 6101 for emergency repairs (24/7).²
Do not arrange private refits or major plumbing changes in a council property without written permission.
Private tenants in Croydon — landlord obligations
Bathroom plumbing repairs in a rented property are 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
What bathroom plumbing 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 bathroom plumbing. Always confirm pricing before work begins. Actual costs vary by scope, access, fixture type, and finish level. VAT may apply.
| Service | Typical range (London) |
|---|---|
| Shower cartridge / thermostatic replacement | from £120 |
| Electric shower replacement (supply and fit) | from £250 |
| Shower pump replacement | from £350 |
| Basin replacement (like-for-like) | from £180 |
| Bath replacement (like-for-like) | from £400 |
| Shower tray / enclosure replacement | from £500 |
| Full bathroom refit (plumbing only, labour) | from £2,000 |
| Full bathroom refit (plumbing + tiling + electrics, turnkey) | from £5,500 |
Refit quotes should itemise labour, materials, fixtures and making good. Ask for a day-by-day schedule and confirm which trades are included.
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 — Bathroom Plumbing Croydon
Typically 1–2 weeks for a full refit including plumbing, tiling and electrics. A small ensuite with no layout change can take 5 working days; a family bathroom with layout changes can take 2–3 weeks. Ask for a day-by-day schedule before the job starts.
Possibly. If you have a gravity-fed system (cold water tank in the loft) and no pump, weak flow is normal for mixer and thermostatic showers. If there’s already a pump fitted, it may have failed — pumps have a limited lifespan.
If you have a mains-fed system and the flow has dropped recently, check for blocked shower head aerators first (scale is usually the cause). If that’s not it, the shower valve cartridge may have failed.
labour (plumber, tiler, electrician — and who’s managing them)
fixtures (basin, bath, toilet, shower — supplied by whom)
materials (tiles, grout, silicone, fittings)
making good (flooring, skirting, paintwork)
Part P electrical certification where required
day-by-day timeline
payment schedule (deposit, stages, final)
Get the quote in writing before accepting.
Bathroom electrics are subject to Part P of the Building Regulations and must be carried out by a qualified electrician who can notify or self-certify the work. Some plumbing engineers work with a regular electrician; others leave it to you to book one.
Confirm who’s handling Part P before work starts.
Not privately. Bathroom refits in council properties are handled through the council’s planned maintenance programme. For repairs, call 020 8726 6100; for emergencies, 020 8726 6101.²
Bathroom Plumbing across Croydon — areas we cover
- Bathroom Plumbing Croydon town centre
- Bathroom Plumbing Addiscombe
- Bathroom Plumbing Thornton Heath
- Bathroom Plumbing South Norwood
- Bathroom Plumbing Norbury
- Bathroom Plumbing Purley
- Bathroom Plumbing Coulsdon
- Bathroom Plumbing Sanderstead
- Bathroom Plumbing Shirley
- Bathroom Plumbing Selhurst
Related services
- Tap Repair & Installation Croydon
- Toilet Repairs Croydon
- Leak Detection Croydon
- Kitchen Plumbing Croydon
- General Plumbing Croydon
From a failed shower pump in a Thornton Heath Victorian terrace to a full ensuite refit in a Coulsdon 1930s semi or an unvented cylinder service in a Purley modern home — 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