GS Renovation renovates bathrooms and en-suites across Marylebone, from compact period flats to the larger townhouses of W1. With over 30 years of experience, we get the parts that matter right in a mansion block, proper waterproofing, sound drainage and ventilation, so the room performs for years without leaks reaching the flat below.
Waterproofing bathrooms above other flats
In a Marylebone block there is almost always a neighbour beneath you, which makes waterproofing the single most important part of any bathroom job. We fully tank wet areas before tiling, seal around trays and junctions correctly and test the work, because a failure in W1 does not just damage your floor, it can flood the leaseholder below and trigger a serious dispute with the freeholder.
Drainage and ventilation take extra planning in a purpose-built flat, where you cannot simply route a new soil pipe wherever you like. We work with the existing stacks and falls, add mechanical extraction to clear moisture from rooms that often have no openable window, and coordinate any noisy or communal-area works with the managing agent so the job respects the whole building.
Wet rooms and en-suites in W1 homes
Space is at a premium in Marylebone flats, so we design layouts that make the most of every inch. A walk-in shower or a fully tanked wet room can turn an awkward corner into a usable en-suite, and slim fittings, recessed storage and clever tiling keep a small period bathroom feeling generous rather than cramped, without sacrificing comfort.
The details lift the finished room. Underfloor heating warms tiled floors and frees up wall space, considered lighting flatters the tiling, and we build in acoustic and waterproof detailing suited to a flat shared with neighbours. Notifiable electrical work in the bathroom is certified under building regulations, and we hand over the certificates your lease and any future sale will require.
- Full plumbing, drainage and waterproofing (tanking)
- Soil pipe and waste re-routing within the floor build-up
- Notifiable bathroom electrics certified under Part P
- Pressure and leak testing before any tiling starts
- Tanking membranes and waterproof boards behind tiles
The GS Renovation Difference in Marylebone
In a Marylebone flat a bathroom that leaks is a problem for the whole block, so getting the waterproofing, drainage and certification right is non-negotiable. GS Renovation tanks properly, works with the building's existing stacks and management rules, and certifies the regulated work. Our 30+ years in W1 mean a watertight, well-finished bathroom and no anxious neighbours below.
- A written scope and programme agreed before work starts
- Falls set to the gully so a wet room actually drains
- Clean, tidy and reliable tradespeople
- Our own trades on site rather than a chain of subcontractors
- Concealed frames and cisterns set out for the finished tile line
- Floors checked and stiffened before large-format tiles go down