Bathroom Renovation Catford
Bathroom and wet-room refurbishment in Catford, 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 renovates bathrooms and en-suites across Catford, working within the compact spaces typical of SE6 Victorian and Edwardian terraces and the flats that most of them are now divided into. We handle the waterproofing, drainage, tiling, heating and fit-out, creating watertight, well-ventilated bathrooms and wet rooms that make the most of the room available.
In Catford, 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 Catford: 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 Catford
Catford range: choose above
How the job runs
- Free design visit at your Catford 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 waterproofing in Catford homes
A bathroom lives or dies on what happens behind the tiles, which is why we tank and waterproof properly before anything is finished. In Catford terraces the bathroom often sits in the rear closet wing or over a cold external wall, so we apply a full tanking system to the shower area and floor, then lay tiles onto a stable, waterproof substrate. For walk-in showers and wet rooms we form the falls carefully so water runs to the drain and never sits.
Drainage and ventilation matter just as much in these older SE6 homes. We connect into the existing soil stack correctly, upgrade extraction to clear moisture and protect against the damp and mould that plague period bathrooms, and insulate where pipework runs against solid external walls. Get the fabric right and the finish lasts, rather than grout failing and tiles lifting a couple of winters later.
Housing in Catford
On the valuation list Catford counts about 7,650 homes, 66% flats and 34% houses; 61% predate 1919, 4% are interwar and 33% post-war. Since most homes here are flats, a bathroom in a flat in Catford sits over a neighbour's ceiling, so it is tanked before tiling and a moved WC needs the freeholder's licence.
A new bathroom layout above a neighbour in Catford
66% of Catford homes are flats, so a bathroom renovation here may well sit directly above someone else's ceiling. Lewisham says a building control inspection is needed when a WC or bath is installed or moved to a new position, and its fees chart has a line for installation of a new bathroom. In a Catford conversion flat, that inspection lands exactly where the risk is: the new waste run, its fall and its connection to the stack, all sitting over the flat below. We leave those joints visible until the inspection, then flood test the tray or bath waste before any board or tile covers it.
The lease matters as much as the regulations. A new WC position in a Catford flat often means a new route for the soil pipe through the floor void, and that void can be part of the structure shared with the flat below. Leases in converted houses often require the freeholder's consent for that kind of change. We ask for the lease clause at the first visit, so the layout is not drawn around a pipe route the freeholder then refuses, and the owner below is told when the water will be off.
Space-saving bathrooms and en-suites in SE6
Space is the constant challenge in Catford's terraced houses, where bathrooms are often small and squeezed into the closet wing. We plan layouts that use the room properly, choosing wall-hung basins and toilets, compact walk-in showers and clever storage to make a tight footprint feel generous. Underfloor heating is a favourite here because it frees up wall space that a radiator would otherwise take.
Adding an en-suite is a common request as SE6 families reconfigure the upper floors, often carving one from a large bedroom or the landing. We handle the new drainage runs, the waterproofing, the ventilation and the tiling, and have the electrics certified by a registered electrician under Part P, or notified to building control. Whether it is a main family bathroom or a compact en-suite, the aim is a practical, watertight room that suits a period Catford home.
- Grout, silicone and trim detailing at completion
- Ventilation and extraction ducted to outside
- Wall and floor tiling in stone, porcelain or mosaic
VOA Council Tax stock of properties, March 2025, for Catford East & Mountsfield Park and Catford Bridge. Counts rounded by the VOA.
The GS Renovation Difference in Catford
Catford owners choose GS Renovation because we build bathrooms from the substrate up, tanking and waterproofing properly before a single tile goes on. We know how SE6 terraces are laid out, we solve the tight closet-wing spaces, and we handle drainage and ventilation in house, with the electrics certified by a registered electrician. Our founder's 30+ years on the tools means a bathroom that stays watertight, not one that fails after a couple of winters.
Reviewed jobs near Catford
1 MyBuilder review from Crofton Park, with each customer's own job title:
- Replace small section of wooden worktop, sink, tap and gas hob, Crofton Park, 17 Apr 2024 (5 out of 5)
Read all 31 on our reviews page.
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 Catford
What happens to the bathroom renovation price if the scope changes in Catford?
Changing the scope of bathroom renovation in Catford produces a written variation before anything else happens, priced against the original figure within £6,000 to £20,000 or more (indicative). The commonest cause is upgrading a finish once the SE6 space is open, which is simple to cost. A layout change is different, because the route for an extract duct to outside decides how much ceiling comes down. GS Renovation rebooks Lewisham Council building control inspections where needed.
How do you stop damp and mould in a small Catford bathroom?
It comes down to waterproofing and ventilation. In SE6 terraces we fully tank the shower and floor before tiling, insulate pipework running against cold external walls, and fit proper extraction to clear moisture. Getting the drainage connected correctly and the fabric right behind the tiles is what keeps damp and mould out of these period bathrooms for the long term, not just the visible finish.
How long will I be without a bathroom in my Catford home?
Around 10 to 15 working days. Stripping out, setting the falls and first fix take the early part; tanking has to be complete before tiling; the toilet and basin go in near the end with the electrical test. In a flat with one bathroom, we agree how toilet access works before the old suite is removed.
Can the toilet move in my Catford flat bathroom?
Only a short way in most cases. The toilet's wide outlet pipe needs a continuous slope to the building's stack, and the ceiling beneath is another flat's, so the pipe cannot drop through it. The stack is communal and fixed, and the lease normally requires the freeholder's consent for any change to the waste.
Can the bath stay under the window in my Catford back-addition bathroom?
It can, but a shower over it is a risk to a timber sash, which rots when soaked every day. If you want a shower, we move it to a solid wall that can be tanked, or fit a screen and a window with a waterproof reveal. The waste position then sets where the bath or tray can go.
Could my Catford bathroom leak into the kitchen below?
Only if the waterproofing fails, which is why it is done before any tile goes on. In many terraces the bathroom sits over the back-addition kitchen, on a timber floor, so the floor is stiffened and overboarded, the wet area tanked with the membrane lapped up the walls, and pipe joints tested under pressure before the ceiling below is closed.
Can a Catford back addition bathroom stay where it is but gain a shower?
It usually can, subject to the joists. In houses built before 1919, which is 61% of Catford homes, the bathroom often sits over the kitchen in the back addition. Keeping the bath and WC in their places avoids a new position inspection, but a shower over the bath adds weight and water to old joists. We check the joists and the waste fall at the survey, and tank the walls and floor around the shower area before tiling.
Can joists be cut to run a new waste pipe in a Catford bathroom?
Only within limits, and deeper cuts are structural work. Lewisham says building control approval is needed for structural alterations, including removal or partial removal of joists. A notch cut too deep or too far from the wall weakens the joist, and in a Catford house that joist may also carry a bath full of water. Where the fall needs more than the joist can give, the structural engineer we appoint designs a trimmer or a bearer.
Can a bathroom be moved in a Catford flat built after 2000?
It can, but the block sets the limits. 17% of Catford homes were built in 2000 or later, and in a block of that age the soil stack, the service riser and the floor between flats are part of the building's fire and sound design. A new bathroom position still has to reach the existing stack, often through the floor build-up. Lewisham says installing or moving a WC or bath needs a building control inspection, and the managing agent will want any opening through the floor or riser sealed to the block's standard.
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