Luxury bathroom and wet-room refurbishment in Coulsdon. Trusted, professional, 30+ years' hands-on experience.
GS Renovation renovates bathrooms across Coulsdon, working in the 1930s semis and interwar houses of CR5 where the original bathrooms were often small and tucked over the stairs. With over 30 years across Croydon, we deliver fully waterproofed wet rooms, walk-in showers and en-suites finished to a lasting standard.

A bathroom only lasts if the water stays where it should, so every Coulsdon bathroom we build is properly tanked before a single tile goes on. We apply a continuous waterproof membrane across the floor and up the walls in the wet zones, which matters especially in a walk-in shower or a full wet room where water reaches surfaces a shower screen would normally protect.
The interwar houses around CR5 were not plumbed for today's showers, so we upgrade the drainage and the ventilation to match. Falls are set so water runs to the drain, waste pipes are routed to discharge correctly, and extraction is sized to clear the moisture that otherwise rots timber and blackens grout. Underfloor heating can be laid beneath the tiles to keep the floor warm and dry.
Bathrooms in Coulsdon's 1930s semis are frequently short on space, so the layout has to be planned carefully. We reset the suite to free up floor area, swap a bulky bath for a walk-in shower where that suits the household, and use wall-hung basins and concealed cisterns to make a small room feel larger. Every centimetre is worked out before the first fixing goes in.
Creating an en-suite off a main bedroom is a popular way to add a second bathroom in these houses, and we plan the drainage runs and ventilation so it works reliably. Bathroom electrics are notifiable under building regulations and must respect the zones around water, so all wiring, extraction and lighting is installed and certified correctly. We tile, seal and finish to a standard that holds up to daily use.
Coulsdon owners choose GS Renovation because we get the parts you cannot see right, the tanking, the drainage and the ventilation, before we make the room look good. One team handles plumbing, electrics, tiling and heating, so there is nobody to chase. More than 30 years across Croydon means a bathroom that stays watertight for years.
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
Every Coulsdon project is priced on its own merits, as the cost of bathroom renovation varies with the size, specification and condition of the home. We give a clear, itemised quote up front with no obligation. Call 07472 424 226 for an estimate tailored to your property. 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.
Most bathroom renovation projects in Coulsdon take between two and eight weeks depending on the scope and whether structural work is involved. We provide a clear programme before work begins so you know exactly what to expect.
GS Renovation knows Coulsdon'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 Coulsdon 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 Coulsdon's homes are 1930s and interwar properties, and we renovate them regularly. We plan each bathroom renovation around their particular characteristics, such as cavity walls, regular original layouts and the generous plots that suit extending, so the result suits the building and meets building control.
Yes. Wet rooms suit the compact bathrooms common in Coulsdon's interwar semis because removing the bath and screen frees up floor space. The key is full tanking under the tiles, correct floor falls to the drain and proper ventilation, all of which we install as standard. Bathroom electrics are notifiable under building regulations, so lighting and extraction are certified too.
Yes. We work throughout Coulsdon and the CR5 area, as well as the surrounding parts of South London. Contact us on 07472 424 226 to confirm we cover your street.
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 Coulsdon. 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 Coulsdon and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for bathroom renovation in Coulsdon.
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