Luxury bathroom and wet-room refurbishment in Belgravia. Trusted, professional, 30+ years' hands-on experience.
GS Renovation fits bathrooms and en-suites across Belgravia, working within the Georgian and Regency townhouses and mews properties of SW1. Fitting modern, watertight bathrooms into period homes takes real care, especially where a property is listed. With over 30 years of experience, we handle the waterproofing, drainage, tiling and finishes throughout.

Fitting a wet room or walk-in shower into a period Belgravia townhouse depends on getting the waterproofing right first. We tank the floor and walls properly before tiling, so water cannot reach the original timber floors and lath-and-plaster below. We form the falls, set the drainage and install proper ventilation to manage moisture in rooms that were never designed for modern showering.
Underfloor heating suits these often cool, high-ceilinged townhouses, adding comfort without wall-mounted radiators taking up limited space. We tile to a high standard and handle the plumbing and notifiable electrical work with building control sign-off. On listed properties we plan the installation to protect historic fabric and confirm whether listed building consent applies before altering original features.
Belgravia townhouses often need extra bathrooms carved into existing bedrooms, landings or awkward corners, so we design en-suites and family bathrooms that make the most of tight or irregular spaces. We plan drainage runs carefully within the constraints of a multi-storey period house, working out how to connect new soil and waste pipes without disturbing the fabric more than necessary.
In smaller mews properties every centimetre counts, so we specify compact fittings and clever layouts that keep the room practical. From tanking and drainage to tiling, ventilation and underfloor heating, we deliver a bathroom that works reliably for years and suits the quality expected of a Belgravia home, all finished to a high standard by one team.
Belgravia owners choose GS Renovation because fitting watertight, modern bathrooms into period and listed townhouses demands proper tanking, drainage and ventilation, not shortcuts. We protect original floors and fabric, sign off notifiable work with building control and finish to a high standard. With 30+ years across SW1, your bathroom is built to last in a demanding home.
Excellent service. George's knowledge and skills are the best in the market. He knows what he is doing, does really high quality work, gives good…
George was very friendly and helpful from start to finish. He worked really hard to ensure our kitchen was installed to a high standard and was…
Really great job done in our bathroom to replace the shower head in the bathtub, and install a shower screen and caddy. We are very happy with the…
FAQ
Expect the figure to track scope rather than postcode. The bathroom renovation elements that move a quotation are span, access and condition, all of which we check at the SW1 property before writing anything down. GS Renovation then itemises labour, materials and the Westminster City Council element for your Belgravia home. Comparing that against another Westminster builder is straightforward because every line is visible. Ring 07472 424 226 and we will arrange a free survey at the SW1 property in Belgravia. 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.
You hear it from us first, with the reason and the revised dates. If bathroom renovation at your SW1 property runs beyond the programme, GS Renovation explains whether the cause is a discovery in a period, Georgian and listed structure, a Westminster City Council inspection slot or something of ours. Fixed-price work does not become more expensive because it took longer. The Belgravia updates continue weekly regardless. Ring 07472 424 226 and GS Renovation will explain how an SW1 overrun is handled.
We do what we say, and we put it in writing first. A Belgravia homeowner gets an itemised bathroom renovation quotation, a programme for the SW1 property and weekly updates, which removes the guesswork that makes building work stressful. GS Renovation appoints the structural engineer where the design needs one and builds to their specification. Free quotes, no obligation, right across Westminster. Email info@gsrenovationltd.co.uk to arrange an SW1 visit. Insurance documents follow on request across Westminster.
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 SW1 property, and the certification goes through Westminster City Council with the rest of the work.
Sometimes, depending on where the property sits. Bathroom renovation in stucco-fronted townhouses and early Victorian villas with deep basements within a conservation area is usually possible but more constrained in form, and Westminster City Council will scrutinise anything visible from the street at SW1. GS Renovation handles the application and the negotiation. Internal work in a Belgravia house is generally more straightforward. Ring 07472 424 226 and we will explain what Westminster City Council is likely to ask about bathroom renovation at an SW1 address of that age.
Yes. We plan drainage and pipe runs to connect a new en-suite while disturbing original fabric as little as possible, and we tank the space fully to protect period floors below. Adding a bathroom does not need planning permission, though electrics are notifiable under building regulations. If your townhouse is listed, we confirm whether listed building consent applies before altering any historic feature.
Both, and the borough is not the limit. GS Renovation carries out bathroom renovation throughout Belgravia and the SW1 area and across neighbouring areas, which is why the team is rarely far from an SW1 property. Free survey, written quotation, no obligation. Email info@gsrenovationltd.co.uk with the address for a visit. We will say plainly if a Central London property is too far out. Aftercare and snagging afterwards are handled from the same SW1 team as the build.
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 Belgravia. Explore what else we do locally:
Same Service, Nearby Areas
We carry out bathroom renovation across Belgravia and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for bathroom renovation in Belgravia. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.