- Postcode districts
- HA1, HA2, HA3, HA5, HA7
- Nearby
- Brent, Wembley and Northolt
- Guide price
- £7,500–£15,000
- Typical time on site
- 5–10 working days
- Water
- Very hard across most of Greater London
- Survey
- Free, at your home
What does a wet room cost in Harrow?
Guide price in Harrow: £7,500–£15,000 including VAT, depending on the room and what you choose. Labour costs in London put local prices at about 25% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Compact
- Floor former and linear or centre drain
Signature
- Underfloor heating option
Large or luxury
- Full conversion of a larger room
Guide prices for Harrow including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Harrow
In Harrow we cover HA1, HA2, HA3 and 2 more postcode districts; we also cover Brent, 2.2 miles away, and Wembley.
London homes in Harrow often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. If your Harrow bathroom is upstairs on timber joists, we check their size and direction before planning the wet room floor. We quote wet rooms in Harrow only after looking at the floor construction, because that is where most of the cost difference lies.
Most of Greater London has very hard water. If your supply in Harrow is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Floor strengthening or a ply overlay on timber floors so the surface does not flex
- A pre-formed floor former with a linear or centre drain, or a screed laid to fall
- Extractor fan and lighting by a qualified electrician, tested and certified, with underfloor heating if you choose it
- Full tanking of the floor and the shower walls, with sealed corners, pipe collars and a sealed drain connection
Decisions to make first
Open or screened
A fully open shower with no glass only works in a larger room, with the basin, WC and towels well away from the spray.
Floor tile
Matt or textured porcelain with good slip resistance. Mosaic gives extra grip on a centre-drain floor because of its many grout lines.
Rules that apply in England
In England, a new drain connection or changes at the soil stack can be building-regulations work under Part H, and new circuits or changes to the wiring in the room are notifiable under Part P. If the wet room is a newly formed bathroom, Approved Document F requires extract of 15 litres per second intermittent or 8 litres per second continuous.

