In a lot of London houses the bathroom is the room nobody wants to open up: a Victorian terrace with a soil pipe in the wrong place, a flat where the old suite hides tired pipework, a basement where drainage needs thought. A bathroom installation in London solves that by dealing with the pipes behind the tiles, not only the suite you see.
In Short
- What gets decided at the planning stage before anything is removed
- The order of strip-out, first fix and second fix
- How plumbing and electrics are routed in older London homes
- Why basement bathrooms need drainage and flood planning
- The sequence for waterproofing before any tile goes up
Drainplumb is a plumbing and drainage business covering London, and the same pipework knowledge that goes into drain cleaning in London goes into getting a bathroom's waste and supplies right.
Describe your bathroom to Drainplumb for London at no charge and get a quick quote in writing before any work starts.
Bathroom Design and Planning
A new bathroom starts on paper. London's housing stock runs from Victorian and Edwardian terraces to stucco-fronted townhouses, converted villas, mansion blocks and modern flats, so the layout that works in one building will not work in the next. We look at the room as it stands: where the soil stack runs, where the floor falls, and which wall can take a basin or a shower.
Planning fixes the decisions that are expensive to change later. The list below is what gets settled before anything is ordered or removed.
- Position of the soil pipe and waste runs, which limit where a toilet can sit.
- Shower, bath or both, and the tray or former size the floor can carry.
- Radiator or heated towel rail, and where the flow and return pipes can be reached.
- Lighting, extractor and shaver socket positions, marked out before walls are closed.
You describe the job at no charge, and a written price follows that description before any work starts.
Ring Drainplumb on 07401 062636 or get a quick quote for your London bathroom installation, with the strip-out to second fix job priced in writing first.
The Bathroom Installation Process for London Homes
Fitting a new bathroom runs in a fixed order. Skip a step or swap two and you pay for it in broken tiles and opened walls. Here is the sequence.
Strip-out
The old suite, tiles, boxing and flooring come out, and waste leaves the property. In a mansion block or upper-floor flat, that means protecting shared stairs and lifts. Terraced houses with narrow hallways need the same care. Once the room is bare, we see what the walls and joists are really like.
First fix
This is everything that ends up hidden. New supply pipework and waste runs go in, electrical cabling is routed, and boards and joist repairs are done. Old London plumbing often has to be adapted to modern layouts, so this is where surprises show up and get dealt with.
Second fix
Once tiling and finishes are done, the visible parts go on: toilet, basin, taps, shower mixer, bath, towel rail, light fittings and extractor. Then everything is tested for leaks and flow before the room is handed back.
Whether you need a bathroom installation in London or an emergency plumber in London, we cover the whole area. If a burst pipe interrupts a refit, the two jobs sit side by side.
Plumbing, Electrics and Building Work
A bathroom is a plumbing job first. Hot and cold supplies, waste falls and the shower feed all have to suit the pressure and pipe layout already in the house. Electrics follow their own rules in a wet room, which is why cable routes and fitting positions are agreed at the planning stage rather than improvised at second fix.
Building work sits around both: stud walls, boxing-in, floor repairs and ventilation. Basements need particular thought. The Greater London Authority says basement plumbing should allow for possible sewer flooding, and Wandsworth states that building-regulations approval is always required for basement extensions. Kensington and Chelsea limits basement excavation too. If your new bathroom is below ground, drainage and pumped waste are part of the plan from day one.
If you are searching for a local plumber in London to fit a bathroom near you, we cover Greater London and the towns around it, from Wimbledon to Harrow. Customers in London and City of Westminster alike come to us for a new bathroom in City of Westminster or elsewhere. Around the Royal Parks, dense streets mean access planning for deliveries and waste, and we plan for it.
Waterproofing, Tiling and Surface Finishes
Water damage starts at the wrong joint. Before any tile goes up, shower enclosures and wet areas are sealed. The order matters:
- Prime the substrate and fix backer board to a flat, sound surface.
- Seal the joints and corners, and the junction between wall and tray.
- Apply the waterproof membrane and let it cure fully.
- Tile, grout, then seal the movement joints with flexible sealant.
Tiling over a membrane that has not cured is how leaks begin. Floors are treated the same way, with falls to the waste where a wet area is fitted.
Whether you are in London or Islington, you can come to us for a bathroom installation in Islington, and the same sequence applies to a bathroom repair in Islington where a failed seal has let water into the wall. Describe the room, and we will put the job and the price in writing. Then you decide.
Ring Drainplumb on 07401 062636 or get a quick quote for your London bathroom installation, with the strip-out to second fix job priced in writing first.

