Bathroom Renovation Streatham
Bathroom and wet-room refurbishment in Streatham, 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 across Streatham, fitting wet rooms, en-suites and family bathrooms into the bay-fronted Victorian and Edwardian terraces of SW16. We handle the waterproofing, drainage, tiling and heating so your new bathroom performs as well as it looks, even in an older home.
In Streatham, 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 Streatham: 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 Streatham
Streatham range: choose above
How the job runs
- Free design visit at your Streatham 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 Streatham homes
A lasting Streatham bathroom starts with proper waterproofing. We tank the walls and floor before tiling, so water stays where it should in a house that may be well over a hundred years old. For walk-in showers and wet rooms we form the falls to the drain accurately, then apply a continuous tanking membrane, the detail that prevents the leaks and damp that plague poorly built bathrooms.
Ventilation and drainage matter just as much in an SW16 terrace, where original waste runs and solid floors need careful handling. We upgrade extraction to clear moisture, reroute pipework where the layout changes, and connect cleanly into the existing soil stack. Underfloor heating makes a cold period bathroom genuinely comfortable, and we lay it under tile or stone as part of the build.
Housing in Streatham
By the valuation list's count, Streatham holds about 27,640 homes, 33% houses and 67% flats; by age, 43% were built before 1919, 27% between the wars and 29% since 1945. Where most homes are flats, a bathroom in a flat in Streatham sits over a neighbour's ceiling, so it is tanked before tiling and a moved WC needs the freeholder's licence.
Joining the separate WC and bathroom in a Streatham interwar house
27% of Streatham homes were built between 1919 and 1939, and houses of that period often have the WC in a small room of its own beside the bathroom. Joining the two gives a small family bathroom real floor space, but check what the dividing wall does first. It can be a light stud partition, or it can carry ceiling joists and, above them, a cold water tank in the roof space that weighs far more when full. We look in the loft before quoting, and if the tank is to stay, the structural engineer we appoint confirms how its load is carried once the wall goes.
Lambeth's building control fee guide gives installation of a new WC, shower or utility its own charge, so a second bathroom in a Streatham house, or a shower where there was only a bath, is building regulations work. The inspector looks at the drainage connection, the extract fan ducted to outside and the electrics. Where the new room sits over the kitchen or living room, the waste route decides the layout, and where the house has been split into flats, the lease can restrict pumped WC systems. We map the route to the stack before the room is designed, not after.
En-suites and space-saving layouts in Streatham
Space is often tight in a Streatham terrace, so we plan bathrooms to make the most of every inch. A boxroom or the top of the closet wing can become a neat en-suite, and wall-hung basins, concealed cisterns and walk-in showers free up floor area in a compact family bathroom. Careful planning turns an awkward period room into a practical, well-proportioned space.
We tile in porcelain, ceramic or natural stone, fit quality brassware and considered lighting, and finish to a standard that suits the character of an Edwardian or Victorian home. Because we run the plumbing, tiling and heating in-house and a registered electrician certifies the electrics under Part P, the whole bathroom comes together on one programme, delivered tidily while you carry on living in your SW16 house.
- Downstairs cloakroom and WC installation
- Drainage falls set to the gully in wet rooms
- Niches, benches and recessed storage formed in the wet area
VOA Council Tax stock of properties, March 2025, for all 7 statistical areas in Streatham. Counts rounded by the VOA.
Why Choose GS Renovation in Streatham
Streatham homeowners choose GS Renovation because we get the parts you cannot see right, the tanking, drainage and ventilation, as well as the finish. We plan clever layouts for the tight rooms of SW16 terraces, fit underfloor heating and quality tiling, and run every trade in-house. Our founder's 30+ years on the tools means a bathroom built to 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 Streatham
Is a cheap bathroom renovation quote in Streatham worth taking?
Before accepting a cheap bathroom renovation quote in Streatham, check what has been left out. Low quotations tend to be light on approvals and reinstatement, and work done without Lambeth Council building control sign-off becomes expensive when the SW16 property is sold. The market range is £6,000 to £20,000 or more (indicative); a figure far below it has usually skipped a step in the sequence: the fall to the waste is set and the walls tanked before tiling.
Can you fit an en-suite into my Streatham terrace without much space?
Yes. In SW16 terraces we create en-suites from a boxroom or the top of the closet wing, using wall-hung fittings, concealed cisterns and walk-in showers to save space. We tank the area fully, sort drainage and ventilation, and connect into the existing soil stack. New circuits and circuit changes near the bath or shower are notifiable under Part P, so a registered electrician certifies them, and no planning permission is needed for internal work. A listed building is the exception: work that affects its character, inside or out, including an extension or taking out a wall or chimney breast, needs listed building consent from Lambeth Council, and doing it without consent is a criminal offence.
What stops a leak from my Streatham bathroom reaching the flat below?
Proper tanking and correct falls. Before tiling, every wet area is tanked with a waterproof membrane lapped up the walls, and the waste falls are set before the tray goes in so water heads for the drain. In a Streatham flat, joints behind the bath are left accessible where possible, so a slow leak is found before it stains a neighbour's ceiling.
Can I move the toilet in my Streatham flat bathroom?
Only a short distance in most cases. The toilet connects to a soil stack shared with the flats above and below, and it needs a wide pipe with a steady fall, so its position is tied to the stack. Moving it across a timber floor may be possible between the joists. The freeholder's consent is often needed under the lease.
Will a new shower in my Streatham flat have enough pressure?
It depends on the water supply to the flat. A combi boiler gives mains pressure, though flats higher up a Streatham building can see weaker mains pressure than those at ground level. An electric shower is independent of the boiler but needs its own circuit, which is notifiable under Part P. A flow test at the survey decides which is realistic.
How long will my Streatham flat be without a bathroom?
The refit takes 10 to 15 working days, which is a long stretch when a Streatham flat has only the one. Ask for the toilet to be reconnected at the end of each day where possible, and plan showers elsewhere during tiling and while the tanking cures. Sanitaryware and electrics go in last, followed by sealing and testing.
Is a first inspection needed before a Streatham bathroom refit starts?
Only where the work is notifiable. A straight swap of bath, basin and WC in the same places is not normally notifiable. Adding a WC or shower, moving a waste or adding an electrical circuit is, and then Lambeth asks for the first inspection with its surveyor to be arranged at least two days ahead. For a Streatham bathroom we give that notice as the strip-out is booked, so the inspector can see the drainage before the floor is closed.
Can the airing cupboard in an older Streatham house become part of the bathroom?
Often, if the hot water arrangement changes. 43% of Streatham homes were built before 1919 and 27% between 1919 and 1939, and houses of either age may have a hot water cylinder in an airing cupboard beside the bathroom. Removing it usually means a combination boiler or a cylinder elsewhere, and any gas work involved is done by a registered gas engineer, arranged separately. Decide the heating first, because the bathroom layout depends on where the cylinder ends up.
Should a Streatham leaseholder tell the flat below before a bathroom is replaced?
Yes, before the strip-out rather than after. With 67% of Streatham homes being flats, your bathroom's pipes may run in the ceiling void of the flat below, and old joints can weep when disturbed. With the neighbour's agreement we photograph their ceiling first, then pressure test the new pipework before tiling. The lease may also require the freeholder's consent for any change to wastes running through the floor.
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