Bathroom Renovation Lambeth
Bathroom and wet-room refurbishment in Lambeth, 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 refits bathrooms across Lambeth, from the Victorian terraces of Brixton to the Georgian townhouses of Kennington. We tank and waterproof properly, install wet rooms and en-suites, and solve the awkward layouts that come with the borough's period homes.
In Lambeth, 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 Lambeth: 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 Lambeth
Lambeth range: choose above
How the job runs
- Free design visit at your Lambeth 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.
Waterproofing and wet rooms in Lambeth
A lasting bathroom starts with what you cannot see. In Lambeth's older Georgian and Victorian homes, timber floors and solid walls need proper tanking before any tile goes on, so we fully waterproof wet rooms and walk-in showers to stop leaks reaching the rooms below. Around Streatham and Clapham we also sort drainage falls and mechanical ventilation, because damp and poor airflow are common problems in the borough's period stock.
On upper floors and in flats we take particular care with waterproofing and sound, since a leak in a converted Lambeth townhouse can affect a neighbour beneath. We install underfloor heating, quality tiling and good extraction as standard. New circuits and work near the bath or shower are notifiable under building regulations, so every circuit is certified by a registered electrician under Part P. The finished room looks the part and is built to stay watertight for years.
Housing in Lambeth
By the valuation list's count, Lambeth holds about 148,600 homes, 23% houses and 77% flats; by age, 40% were built before 1919, 14% between the wars and 46% since 1945. Since most homes here are flats, a bathroom in a flat in Lambeth sits over a neighbour's ceiling, so it is tanked before tiling and a moved WC needs the freeholder's licence.
A new shower room or WC in Lambeth needs approval behind it
Adding a shower room, an en suite or a downstairs WC in Lambeth is more than a plumbing job on paper. Lambeth's building control charges list installation of a new WC, shower or utility as its own item, which means the new room goes through building control rather than being fitted and forgotten. The parts that matter to the inspector are the drainage connection, the ventilation and the room's relationship to the rest of the house. We prepare the application once the layout, the waste route and the extract outlet are fixed, so what is approved is what gets built.
In the 40% of Lambeth homes built before 1919, a new upstairs WC is often a long way from the soil stack. Houses of that age commonly have a single stack at the back, often added after the house was built. A WC at the front of the house either runs a large waste under the floor to that pipe, which needs joists running the right way and depth for a fall, or uses a macerator with its own conditions of use. We lift boards along the proposed route at survey, because the joist direction decides where a Lambeth bathroom can go before any tile is chosen.
Space-saving bathrooms in Lambeth period homes
Period homes rarely offer a generous bathroom, so much of our Lambeth work is about clever use of tight space. In the terraces around Brockwell Park and Vauxhall we carve en-suites out of box rooms, tuck walk-in showers under sloping roofs, and choose wall-hung sanitaryware to keep small rooms feeling open. Careful planning of the layout, storage and lighting makes a compact SW9 bathroom work far harder than its footprint suggests.
We match the finish to the age of the house, from traditional suites in a conservation-area home to sharp contemporary wet rooms in a modernised flat. Original features are protected where they matter. Because we organise the plumbing, tiling, heating and electrics as one team, the trades are sequenced cleanly and the job stays tidy in an occupied home. The result is a durable, well-planned bathroom across SE24 and SW4.
- En-suite creation in bedrooms and loft rooms
- Downstairs cloakroom and WC installation
- Wall and floor tiling in stone, porcelain or mosaic
VOA Council Tax stock of properties, March 2025, for all 35 statistical areas in Lambeth. Counts rounded by the VOA.
The GS Renovation Difference in Lambeth
Lambeth homeowners choose GS Renovation because we get the hidden work right, the tanking, drainage, ventilation and certified electrics, not just the tiling. We plan clever layouts for the borough's tight period rooms and work tidily in occupied homes. With our founder's 30+ years on the tools, your bathroom is built to stay watertight and last.
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
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…
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 Lambeth
How does your bathroom renovation price in Lambeth compare with a national firm's?
National and local totals for bathroom renovation in Lambeth are usually closer than the structures behind them, within £6,000 to £20,000 or more (indicative). A national firm subcontracts the work and prices its overhead into your quotation; GS Renovation carries out the SW9 job itself. Ask both for the same breakdown, and check that each prices the work in its proper order: the waste run is fixed before the tray goes down.
Can you fit an en-suite into my small Brixton bedroom?
Often, yes. In Lambeth's period homes we create en-suites from box rooms and awkward corners, using walk-in showers, wall-hung sanitaryware and smart layouts to save space. The key is proper tanking, a workable drainage run and good ventilation, all handled by our team. Bathroom electrics are certified by a registered electrician under Part P. We plan the whole room around your Brixton home's existing pipework and floor structure.
How do you waterproof a bathroom over a timber floor in a Lambeth conversion?
Timber moves, so the floor is stiffened and overboarded with a suitable backer before tanking is applied. The membrane runs up the walls and is sealed at every junction. Waste falls are set before the tray goes down. In a converted house the flat below sits under that floor, so the tanking is tested before any tiles.
How long does a Lambeth bathroom refit take?
About 10 to 15 working days on site. The order is strip-out, first fix plumbing and electrics, waste falls, tray, tanking and tiling, then sanitaryware and second fix. In a flat, the freeholder may need to approve the specification first, and that time sits outside the site days.
Where does the bathroom extractor vent in a solid-walled Lambeth house?
Through the nearest outside wall, core-drilled through the solid brick, or up through the roof if the bathroom is at the top. Part F demands mechanical extraction discharging outside. For an internal Lambeth bathroom the duct crosses the ceiling void, so its path is fixed while the joists are exposed.
Can old joists in a Lambeth Victorian house take a cast iron bath?
Not always without help. A full cast iron bath with water and a bather in it is a heavy point load, and old joists may have been notched by earlier plumbing. The engineer can check them and recommend extra joists or a spreader to share the load. Position the bath near a supporting wall where possible.
How soon can a Lambeth shower room start if it needs building control?
Quickly, on the building notice route. Lambeth says a building notice is quicker than a full plans application, and works can commence 48 hours after the council receives it. So a new shower room need not wait weeks before work starts. We give the notice once the layout, the drainage route and the extract are settled. The new waste and the fan ducting stay visible until the inspection has been made, because tiling over them first means taking tiles off again.
Can a new soil pipe run down the outside of a Lambeth house in an Article 4 area?
Treat it as an external alteration and check first. Lambeth lists all or parts of nine conservation areas as having Article 4 Directions on external alterations, including Albert Square and Lansdowne Garden. A new soil pipe or extract outlet on a visible elevation is a change to the outside. Where the address is covered, we look first for an internal route, boxed through a cupboard or a corner of the room, and keep any external pipe to the rear.
Can a bathroom be added to a listed Lambeth house?
Often, but the pipe routes are where the consent question sits. Lambeth Council states that Lambeth has over 2,000 statutory listed buildings, and a new bathroom in one means new soil and waste runs through floors, an extract outlet and fixings into historic walls. Each can affect the fabric the listing protects. We map those routes at survey, choose ones that avoid cutting original joists or cornices, and include them in the consent application before any plumbing is ordered.
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