Underfloor Heating Installation Guides

Choose a flooring product approved for underfloor heating and follow its temperature, thermal-resistance and installation limits. The Ribbon is 1.8mm thick, but insulation, underlay, rigid preparation and the floor finish add to the complete build-up. These guides explain the different preparations, layers and installation checks for each floor type.

Updated 26 September 2026

Pick the guide for your floor below. Each one covers what to buy, how to prepare the subfloor, how to lay the ribbon and what to check before the floor goes on top. Planning and laying the mats is a job most competent DIYers can handle in an afternoon. The one part you must not do yourself is the final electrical connection. That has to be made by a qualified electrician, working to UK Part P and BS 7671. Every guide repeats that rule, because it matters.

Download the full fitting guide

Fifteen pages covering planning the room, laying the insulation and the Ribbon, every floor covering, thermostats, electrical testing, commissioning and looking after the floor afterwards. It finishes with an installer checklist you can tick off on site.

Download the fitting guide (PDF)

Free, no email needed. The final 240V connection must always be made by a Part P qualified electrician.

Pick your floor type

More help

Not sure how much ribbon your room needs? Draw it in our free room designer. It works out the whole-mat layout for your space and gives you a price on the spot. The Ribbon carries a manufacturer warranty, with the period and conditions stated in AHT’s supplied certificate, and the system has been fitted in over 100 UK homes.

Prefer to talk it through first? Call us on 01244 822 918. We are based in Flint, North Wales, and we are happy to help you plan the job. Tell us your room size and floor type and we will tell you exactly what you need.