- Postcode districts
- CM13, CM14, CM15
- Nearby
- Billericay, Hornchurch and Romford
- Guide price
- £750–£2,600
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Very hard across most of Essex
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Brentwood?
In Brentwood, bathroom underfloor heating typically costs £750–£2,600 including VAT, based on East of England prices. We adjust the national guide for East of England, where prices are typically about 6% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Electric mat
- Insulation board
Electric, larger room
- Electrician sign-off
Wet system
- Pipes linked to the heating
Guide prices for Brentwood including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Brentwood
We work right across Brentwood — CM13, CM14 and CM15 — and in neighbouring Billericay and Hornchurch.
In Brentwood, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. Whether your Brentwood bathroom is a small en-suite or a large main bathroom, the mat is sized to the open floor, not the whole room. We check door thresholds in Brentwood homes at the survey, because underfloor heating and new tiles raise the floor slightly.
Most of Essex has very hard water. Hard water leaves white marks on dark grout and gloss tiles, so matt finishes and stain-resistant grout are the practical choice. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A dial, programmable or smart thermostat, with the supply RCD protected, tested and certified by a qualified electrician
- For wet systems, pipes in low-profile boards or screed connected to a manifold or single-zone kit, with any boiler work done by a Gas Safe registered engineer
- Bringing the system up to temperature gradually once the adhesive and grout have cured
- A floor sensor set between the heating runs and wired back to the thermostat
Decisions to make first
Insulation board thickness
Thicker boards warm up faster and lose less heat downwards, but raise the floor; the right choice depends on the door threshold and the next room.
Electric or wet
Electric is cheaper to install and quick to lay in one room. Wet costs more upfront but is usually cheaper to run where it is fed by a gas boiler or heat pump.
Rules that apply in England
In England, a new circuit for underfloor heating is notifiable under Part P, and so is connecting it to an existing circuit in a room with a bath or shower. The electrician either self-certifies through a competent person scheme or the work is notified to building control.
