Bathroom Renovation Croydon
Bathroom and wet-room refurbishment in Croydon, tanked, plumbed and tiled by one team.
- Rated 4.9 from 31 reviews on MyBuilder
- London guide: £6,000 to £20,000+
- 10 to 15 working days on site
- Free design visit, itemised quote
GS Renovation fits bathrooms and en-suites across Croydon, from the 1930s semis of Purley and Coulsdon to the Victorian homes around Addiscombe and SE19. We handle the waterproofing, drainage, tiling, heating and every trade in-house.
In Croydon, a full bathroom refit typically costs £6,000 to £20,000 or more (indicative London ranges, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Croydon: we carry the tanking, plumbing and tiling as one contract, with the electrics certified by a registered electrician.
Price guide
| Work | Indicative London range |
|---|---|
| Bathroom renovation, full refit | £6,000 to £20,000+ |
Indicative London ranges (MyBuilder and Checkatrade, 2026), not a quotation. Prices checked September 2026. Full breakdown: Bathroom Renovation Cost.
Quick estimate for Croydon
Croydon range: choose above
How the job runs
- Free design visit at your Croydon home and an itemised quote.
- Strip-out, then first-fix plumbing and electrics.
- Tanking to the wet areas, then tiling.
- Sanitaryware and second fix, with notifiable electrics certified by a registered electrician. Typically 10 to 15 working days on site.
Wet rooms and walk-in showers in Croydon
A well-built Croydon bathroom starts with what you cannot see. Before any tile goes down we tank and waterproof the floor and the shower zone, so wet rooms and walk-in showers stay dry for the long term rather than failing at the edges. We form the falls to the drainage, set the ventilation to clear moisture and only then tile out, whether that is large-format porcelain or classic metro across the walls.
In the 1930s semis common across Purley and Coulsdon we often reconfigure a dated 1930s bathroom into a walk-in shower with underfloor heating and a heated towel rail. Where drainage needs rerouting to suit the new layout, we handle the pipework properly so falls and traps meet building regulations, and the room works reliably every day, not just on the day it is finished.
Housing in Croydon
Croydon counts roughly 168,270 homes for Council Tax; 28% are older than 1919, 24% interwar and 48% post-war, with 44% flats and 56% houses. A terrace bathroom in Croydon vents front, back or up, never into a party wall, and 28% of homes here are terraced.
When a Croydon bathroom needs building control and when it does not
Croydon states that building control approval is not needed for refurbishing an existing bathroom or toilet, but it lists installing a new bathroom among the minor works a building notice is aimed at. The line between the two is whether the room is new. Replacing the suite, tiles and shower in the same room is refurbishment. Turning a box room into an en-suite, or putting a shower room under the stairs, is a new bathroom, with new drainage and ventilation for building control to see.
The electrics sit outside that distinction. A new circuit, or new electrical work in the zones around a bath or shower, is notifiable even in a straight refurbishment, so a registered electrician certifies it. For a new Croydon bathroom, send the building notice before the floor comes up, and ask for the inspection while the waste run and fan duct are still visible. A new en-suite with no record is the question a buyer's solicitor raises when the house is sold, and the answer then means opening finished tiling.
En-suites and space-saving layouts in Croydon
Many Croydon homeowners want to carve an en-suite out of a bedroom or convert an old box room, and the semis and larger terraces around CR7 and SE25 usually have the space to make it work. We plan the layout to fit a compact shower, basin and WC without cramping the bedroom, then run new hot and cold supplies, waste and ventilation to the new position, coordinating soil connections carefully.
In the older Victorian and period homes near Crystal Palace and SE19, awkward proportions and chimney breasts call for a made-to-measure approach, with fittings chosen to suit the room rather than forced into a standard grid. Underfloor heating, recessed niches and considered lighting all help a smaller Croydon bathroom feel generous. Every element, from first-fix plumbing to the final seal, is delivered by one team.
- Full plumbing, drainage and waterproofing (tanking)
- Wall and floor tiling in stone, porcelain or mosaic
- Concealed cisterns, frames and wall-hung sanitaryware
VOA Council Tax stock of properties, March 2025, for all 45 statistical areas in Croydon. Counts rounded by the VOA.
The GS Renovation Difference in Croydon
Croydon homeowners choose GS Renovation because a lasting bathroom depends on the waterproofing, drainage and ventilation being right, not just the tiles. We run every stage to one standard on one programme, with notifiable electrics certified by a registered electrician under Part P or notified to building control. With our founder's 30+ years on the tools, we build wet rooms and en-suites that stay reliable for years.
My husband and I are extremely pleased with the work. The standard of the work is outstanding and Saiid has a great eye for detail and will not leave…
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
FAQ
Frequently Asked Questions about Bathroom Renovation Croydon
What does the bathroom renovation quotation for a Croydon home cover?
Labour, materials, approvals, reinstatement and the programme are all on the bathroom renovation quotation for a CR0 home in Croydon, inside £6,000 to £20,000 or more (indicative). GS Renovation writes it so each element can be checked against another builder's round number. The scope reflects the property, because soil stack distance decides where a Croydon WC can go. Email info@gsrenovationltd.co.uk to see a sample layout.
Can you fit a wet room in my 1930s semi in Purley?
Yes. The key in a Purley 1930s semi is proper tanking and waterproofing under the tiles, with the floor falls set correctly to the drain and good ventilation to clear moisture. We reroute pipework where the new layout needs it, add underfloor heating if you wish, and handle every trade in-house so the finished wet room stays dry and reliable across CR2 and the wider CR postcodes.
How long will my Croydon family bathroom be out of action?
A full bathroom takes 10 to 15 working days. With only one bathroom, plan for that: some families stay elsewhere for a few days, while others lean on a downstairs toilet. Where the layout allows, we leave the old pan plumbed in until late in the job. The shower tray waits until its waste has been laid to fall, and the tiler waits until the tanking is done.
Can a bathroom go in my Croydon loft conversion?
Usually, but drainage comes first. The waste has to reach the soil stack with a proper fall, and often the stack is extended up into the loft. Running pipes across joists or through the roof slopes has limits, and a pump is a last resort. Part H sets the falls. Extraction must be ducted to outside, and the loft floor must be strong enough for a filled bath.
Which electrical rules apply in a Croydon bathroom?
New circuits, and circuit changes around the bath or shower, are notifiable under Part P, and a registered electrician certifies it. Fittings near the bath or shower must be suitable for their position, so lights, fans and shaver sockets are chosen for the zones they sit in. Switches for the light and fan are usually outside the room or on pull cords. Underfloor heating needs its own circuit.
Is the hot water cylinder in my Croydon airing cupboard worth keeping?
That depends on how many bathrooms the house has. A combi suits a single bathroom, but two showers running together are better served by stored hot water. Whichever you choose reshapes the pipe runs, so it is settled ahead of first fix. A Gas Safe registered engineer handles the boiler side, and an unvented cylinder also needs cupboard space and a safe discharge route.
When can the Croydon inspector see a new bathroom's drainage before the floor closes?
On a weekday. Croydon building control inspections run from 10:30am to 3:30pm, excluding bank holidays, and are requested online at least 2 working days ahead. For a new bathroom, book the visit for the day the waste pipes are connected and tested, and keep the floorboards up until it has happened. If the plumber finishes on a Friday, the floor stays open into the following week, so plan the tiler's start accordingly.
What should a Croydon flat owner check before putting a bathroom over a neighbour's bedroom?
The lease, the sound and the pipe route. 44% of homes in Croydon are flats, and a new bathroom in a converted house can end up above another household's bedroom. The lease will usually require the freeholder's consent for new plumbing and a new soil connection. A bathroom floor over a bedroom needs acoustic insulation between the joists and a resilient layer under the tiles. As new bathroom work in Croydon it also goes on a building notice, so the drainage is inspected.
Does adding en-suites to let a Croydon house to sharers need planning permission?
The en-suites are building regulations work, but the change of use may need planning. Croydon's Article 4 direction requiring planning permission to convert homes into small houses in multiple occupation came into place on 28 January 2020. If the en-suites are part of letting the house to unrelated sharers, settle the planning position before the bathrooms are designed, since a refusal leaves a family house with more bathrooms than it needs.
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