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.
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great attention to detail. I've already recommended him to others.
Splendid job on our new kitchen refurb, including new flooring, moving the services, installing RSJ and preparing space for new back doors… George was always friendly, communicative and has an excellent attention to detail, ensuring everything is finished to a high standard.
Giorgio is an excellent and intelligent workman, and with very reasonable prices!… He paid a lot of attention to detail that is not common at all, and the final result was immaculate. Highly recommended!
FAQ
The cost of bathroom renovation in Balham depends on the size of the property, the specification and the scope of work. GS Renovation provides free, detailed and itemised quotations for every Balham project. Call 07472 424 226 or email info@gsrenovationltd.co.uk for a no-obligation estimate. 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.
We will give you an honest timescale for bathroom renovation in Balham after surveying your home. Most projects run on a clear weekly programme, and we tell you up front about any lead times on materials or approvals.
GS Renovation knows Balham's homes and how to renovate them properly. We handle the structure, the services and the finishes, deal with building control for you, and leave you with work that is certified, guaranteed and built to last.
Yes. Bathroom electrics in Balham are notifiable under Part P and must be certified, and any drainage, ventilation or structural changes must meet building regulations. We include certified electrical work and manage building control on every bathroom project.
Yes. A large share of Balham's homes are Victorian and Edwardian terraced properties, and we renovate them regularly. We plan each bathroom renovation around their particular characteristics, such as solid brick walls, rear closet wings, side returns and original period features, so the result suits the building and meets building control.
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.
Absolutely. Our team works right across Balham and the SW12 area and neighbouring parts of South West London. Get in touch on 07472 424 226 to check coverage for your address.
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:
Steel beam installation, RSJ and structural alterations.
Safe load-bearing wall removal with steel beam support.
Structural alterations, new openings and steel support.
Chimney breast removal with gallows bracket or beam support.
Open-plan kitchen, diner and living conversions.
Single and double storey extensions.
Full refurbishments and whole-house renovations.
Bespoke kitchen design and installation.
Same Service, Nearby Areas
We carry out bathroom renovation across Balham and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for bathroom renovation in Balham.
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