What does a wet room cost in Hertfordshire?
Our guide range in Hertfordshire is £6,400–£12,750 including VAT. Prices in Hertfordshire run at about 6% above the UK guide, based on East of England labour rates.
Compact
- Floor former and linear or centre drain
Signature
- Underfloor heating option
Large or luxury
- Full conversion of a larger room
Guide prices for Hertfordshire including VAT. Your itemised written quote after the free survey is the price that counts.
Which towns do we cover in Hertfordshire?
- Watford
- Hemel Hempstead
- Stevenage
- St Albans
- Welwyn Garden City
- Cheshunt
- Hatfield
- Bishops Stortford
- Borehamwood
- Hitchin
- Hoddesdon
- Letchworth Garden City
- North Watford
- Harpenden
- Bushey
- Hertford
- Rickmansworth
- Potters Bar
- Berkhamsted
- Ware
Most of Hertfordshire has very hard water. If your supply in Watford 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. For a wet room in a Watford flat, the first step is the lease, because freeholder consent is often needed before any work starts.
What the job includes
- Slip-resistant porcelain floor tiles and wall tiling
- A frameless glass screen fixed to the wall and floor
- A thermostatic shower valve, exposed or concealed, with heads to suit your water system
- A survey of the floor construction, the joist size and direction or the concrete slab, and the route to the soil stack
- 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
Decisions to make first
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.
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.
Underfloor heating
Electric underfloor heating under the tiles dries the floor quickly after a shower; it is typically £700 to £1,500 for a bathroom.
Linear or centre drain
A linear drain along one wall lets the floor fall in a single direction, so large tiles can be laid without awkward cuts. A centre drain needs a four-way fall and suits smaller tiles or mosaic.
Rules that apply in England
A wet room inside an existing home does not need planning permission. In a flat, check the lease: freeholder consent is often needed, and both the leak risk and the sound insulation to the flat below matter. Electrics must meet BS 7671, with 30 mA RCD protection, at least IPX4 fittings in zone 1 up to 2.25 m above the shower floor, IPX5 where water jets are used, and no ordinary sockets within 3 m of zone 1.
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.

