- Postcode districts
- BB1, BB2, BB3
- Nearby
- Darwen, Accrington and Haslingden
- Guide price
- £650–£2,400
- Typical time on site
- 1–2 working days (added to a fit)
- Water
- Soft across most of Lancashire
- Survey
- Free, at your home
What does bathroom underfloor heating cost in Blackburn?
Our guide price for bathroom underfloor heating in Blackburn is £650–£2,400 including VAT. We adjust the national guide for North West England, where prices are typically about 6% below the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Electric mat
- Mat under the tiles
Electric, larger room
- Programmable smart thermostat
Wet system
- Screed or low-profile boards
Guide prices for Blackburn including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Blackburn
We cover every part of Blackburn, including BB1, BB2 and BB3, and nearby Darwen (3.7 miles) and Accrington (5.1 miles).
Across a large town like Blackburn, homes range from older terraces to newer estates; the survey tells us which pipework and floor we are dealing with. If your Blackburn bathroom has a cold tiled floor and no room for a bigger radiator, an electric mat under new tiles is the simplest answer. If your Blackburn home has a suspended timber floor, insulation boards under the mat stop heat disappearing into the void below.
Supplies across most of Lancashire are soft. Soft water is kind to grout, so mid-tone and darker grouts stay looking fresh. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Bringing the system up to temperature gradually once the adhesive and grout have cured
- A check of the floor construction, the room's heat loss and where the thermostat and supply will go
- The electric mat or cable laid to the open floor, kept clear of where the WC, bath and fixed furniture will sit
- 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.
Floor finish
Tiles and stone pass heat through well. LVT and vinyl can work, but check the maximum floor temperature the flooring maker allows.
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.

