Luxury bathroom and wet-room refurbishment in Balham. Trusted, professional, 30+ years' hands-on experience.
GS Renovation fits bathrooms and en-suites throughout Balham's Victorian and Edwardian terraces and period conversions. In SW12 these are often tight, awkward spaces carved from a closet wing or a spare bedroom, so waterproofing and clever layouts matter. With 30+ years in Wandsworth, we deliver watertight, well-ventilated bathrooms built to last.

Bathrooms in Balham's terraces frequently sit in the rear closet wing or over timber upper floors, where getting the waterproofing right is everything. We fully tank walls and floors before tiling, pay close attention to drainage falls and traps, and make sure ventilation is adequate so that the damp and condensation these older, solid-walled houses are prone to do not take hold behind a new finish.
Wet rooms and level-access walk-in showers are popular in SW12, but they demand proper tanking and a correctly formed drainage gradient to work over a suspended floor. We build up the substrate, install the falls, tank the whole zone and only then tile, so the finished room is genuinely watertight. Underfloor heating can be added at this stage to keep the space warm and to help period bathrooms dry quickly.
Space is the constant challenge in Balham bathrooms. Carving an en-suite from a bedroom corner, or fitting a family bathroom into the narrow closet wing, calls for careful planning of the layout, the door swing and where the soil pipe can run. We plan sanitaryware, storage and shower positions to make a small period footprint feel usable rather than cramped, using wall-hung fittings and recessed niches to reclaim every inch.
Drainage and ventilation drive what is possible in these older houses, so we work out the pipe runs and extraction early, before the layout is fixed. Tiling, underfloor heating and considered lighting then finish the room. A bathroom renovation like this does not need planning permission, though the electrics are notifiable under building regulations, and we handle that sign-off as standard on every Balham job.
Balham homeowners choose GS Renovation because we treat waterproofing and layout as the heart of a bathroom, not an afterthought. We tank properly, set correct drainage falls, plan ventilation for these damp-prone period houses and make the most of tight SW12 footprints. One team delivers the tiling, heating and finish, all backed by 30+ years across Wandsworth.
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FAQ
Set the figure after the survey rather than before it. Guessing a bathroom renovation budget for a Balham home usually means guessing wrong in one direction or the other, and the SW12 visit costs nothing. GS Renovation then gives you an itemised written total including the Wandsworth Council element. Call 07472 424 226 or email info@gsrenovationltd.co.uk to arrange it. The SW12 visit carries no obligation at all, whether the Balham work goes ahead or not. As a rough guide, bathroom renovation in London ranges from roughly £6,000 to £20,000 or more (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.
Yes, modestly, and the time is worth spending. Working around original features in a Balham home means bathroom renovation proceeds carefully rather than quickly, particularly near cornice, sash windows and original floors at an SW12 property. GS Renovation agrees with you beforehand what is being kept. The Wandsworth Council inspections are booked around that sequence so nothing waits. Ring 07472 424 226 and GS Renovation will describe how an SW12 property in Balham is protected during the work.
Size, mostly. We are small enough that you know who is coming to your SW12 home for bathroom renovation, and large enough to run the whole Balham project without bringing in strangers halfway through. GS Renovation keeps one named manager on the Wandsworth site throughout. The 31 MyBuilder reviews behind our 4.9 rating describe exactly that. Email info@gsrenovationltd.co.uk and we will arrange a free survey. The Balham reviews and Wandsworth references are all public.
The electrical element is, under Part P, and it must be certified. Wet systems tie into the heating and engage Part L. We install and test underfloor heating before tiling at your SW12 property, and the certification goes through Wandsworth Council with the rest of the work.
Always. Applying a standard detail to bay-fronted Victorian and Edwardian terraces with rear closet wings and side returns is how original features get damaged, so GS Renovation plans bathroom renovation around what the SW12 property actually is. The engineer's design covers the structure; the finishing is matched to what is already in the Balham house. You agree both before work begins in Wandsworth. Ring 07472 424 226 and we will explain how bathroom renovation is matched to the finishes already present in an SW12 home today.
Yes, though it needs care over a suspended timber floor. We build up and tank the substrate, form the correct drainage falls and seal the whole shower zone before tiling, so it stays watertight. Ventilation is planned in to control condensation in these period houses. The work does not need planning permission, but the electrics are notifiable under building regulations, which we certify.
Yes, Wandsworth in its entirety, not just Balham. Bathroom renovation projects run across the borough most weeks, so an SW12 address is easy for us to reach and to return to for aftercare. GS Renovation coordinates Wandsworth Council building control throughout. Ring 07472 424 226 and we will confirm availability for your street. The survey that follows is free and carries no obligation. Small jobs and large ones are quoted on the same SW12 basis.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Balham. Explore what else we do locally:
Same Service, Nearby Areas
We carry out bathroom renovation across Balham and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for bathroom renovation in Balham. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.