Carbon film can warm a carpeted room without pipes, screed or a major increase in floor height. The system is laid over thermal insulation, protected above and controlled by a floor-sensing thermostat before an approved carpet-and-underlay combination is fitted.
Is your carpet suitable?
Carpet and underlay slow the movement of heat into the room, so their combined thermal resistance must remain within the heating manufacturer's limit. We check both products together rather than approving the carpet by appearance or material alone.
Some highly insulating carpets and underlays can restrict how effectively heat reaches the room. Send us the carpet and underlay specifications before ordering and we will check their combined thermal resistance.
Fitted in a single day, electrical work included.
Carbon film under carpet



How the job goes
How the system is installed
The subfloor is checked for level, dryness and stability before the insulation is laid. Pre-sized Ecofilm elements are positioned only in the clear floor area and must not run beneath permanently fixed furniture or be folded, shortened or overlapped.
The protective layer and approved carpet build-up are installed above the film. A qualified electrician connects the thermostat and fused supply, tests the system and records the electrical readings before the floor is closed.
Comfort and control
A floor sensor limits the surface temperature while the programmable thermostat controls when the room is heated. Because carpet insulates the floor, response time depends on the combined carpet-and-underlay tog rating and the heat loss of the room.
Can it heat the whole room?
A 130W/m² element may meet the room's heating demand in a well-insulated property, but this must be established with a heat-loss calculation. Available heated floor area, insulation, glazing and room exposure all affect the result.
Where it must not be installed
The Ecofilm product described on this page is not earthed and is not suitable for bathrooms or other wet areas. It must also remain clear of fixed objects that trap heat. Ask us to check the room layout if any area is uncertain.
Book a free consultation
Give us the room dimensions and the floor finish, and we will tell you exactly which system to order and what it will cost.
Or call 0800 756 6862
What we supply and install
Carbon film is a dry-lay system. There is no adhesive, no screed and no wet trades, so the floor goes back down the same day it comes up.
- Ecofilm carbon heating elements, sized to the clear floor area
- Thermal insulation for beneath the film
- PET vapour barrier for above it
- Touch floor-sensing thermostat and floor probe
- Subfloor checks and preparation
- Insulation, heating film and protective barrier
- Thermostat and fused supply connected, tested and recorded by a qualified electrician
- Carpet and underlay checked against the manufacturer's limit

Element thickness, under the floor finish
Per square metre of heated floor
Guarantee on every film system
Years fitting floors in Scotland
Why Choose Us?
What every order includes
Free next-day delivery
On every underfloor heating system, anywhere in mainland UK.
Ten year guarantee
Every carbon film system carries a 10 year guarantee.
Free technical support
Talk to an installer before you buy, and while you fit it.
Sized to your room
Tell us your dimensions and we will size the system for you.
Our Manufacturing Partners
The floors that go over it come from manufacturers we buy from directly, so what you get is manufacturer-backed rather than whatever a merchant happens to hold.
Flexel
ScotlandOur heating manufacturer. The Ecofilm carbon element, the Depron insulation and the ECOMAX boards are all made here in Scotland rather than imported.
Kährs & Boen
Engineered wood. Both build boards rated for use over underfloor heating, which is the part most engineered wood gets wrong.
Parador & Quickstep
Laminate and luxury vinyl. Every range we stock from them is compatible with the film, so the two are never fighting each other.
Approvals & Standards
EN 60335-2-96
BS 7671 18th Edition
CE Certified
Fitted in Scotland
Approved to EN 60335-2-96 as required by the 18th Edition Wiring Regulations (BS 7671).
Product specificationThe polyester vapour barrier provides supplementary electrical insulation as a requirement of the BS EN 60335-2-96 approval certificate.
Installation guidanceMore Information
Supply or installation
We size and supply systems throughout mainland UK. Installation is available in Edinburgh and selected areas of Scotland - contact us with your postcode to confirm availability. It includes the floor build-up, control and final connection by a qualified electrician.
Common questions
Can underfloor heating go under a carpet?
Yes, provided the combined thermal resistance of the carpet and underlay stays within the heating manufacturer's limit. We check the two together before quoting.
How much does the floor level rise?
The exact increase in floor height depends on the insulation specified for your subfloor and the approved carpet-and-underlay combination above it. We include the complete finished build-up with the quotation.
Which underlay should I avoid?
Some highly insulating carpets and underlays can restrict how effectively heat reaches the room. Send us the specifications for both products and we will check their combined thermal resistance before quoting.
Can it be the only heating in the room?
Only where a heat-loss calculation shows the available heated floor area can meet the demand of the room. We work that out rather than assume it.
Can it go in a bathroom?
Not this product. The Ecofilm element described here is not earthed and must not be installed in a bathroom or any other wet area.
Who makes the electrical connection?
A qualified electrician completes the connection, tests the installation and records the readings before the floor is closed.