- Postcode districts
- DA3, DA4, DA13
- Nearby
- Hartley, Swanscombe and Gravesend
- Guide price
- £6,700–£13,500
- Typical time on site
- 5–10 working days
- Water
- Very hard across most of Kent
- Survey
- Free, at your home
What does a wet room cost in Longfield?
As a guide, budget £6,700 to £13,500 including VAT for a wet room in Longfield; your written quote will pin it down. We adjust the national guide for South East England, where prices are typically about 12% above the UK average. 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 Longfield including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Longfield
As well as Longfield itself (DA3, DA4 and DA13), we survey in Hartley, Swanscombe and Gravesend.
Longfield gets the same process as anywhere else: a free survey at your home and a written, itemised quote. We quote wet rooms in Longfield only after looking at the floor construction, because that is where most of the cost difference lies. For a wet room in a Longfield flat, the first step is the lease, because freeholder consent is often needed before any work starts.
Supplies across most of Kent are very hard. If your supply in Longfield 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
- Slip-resistant porcelain floor tiles and wall tiling
- A pre-formed floor former with a linear or centre drain, or a screed laid to fall
- A thermostatic shower valve, exposed or concealed, with heads to suit your water system
- Strip-out, waste removal, a final flow test to the drain and handover
Decisions to make first
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.
Former or screed
A pre-formed board gives a consistent fall and suits timber floors. A sand and cement screed suits concrete slabs and larger shower areas.
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.

