The best underfloor heating foils, compared.
Top pick: Adept dial-thermostat foil kit Best value: Adept 10 m² foil kit – £164.99 for 10 m² is about £16.50 a stated square metre, the lowest among 230 V kits here that state an area and include a thermostat. Updated October 2026.
Underfloor heating foil in this UK set is a powered mat or film under a floating floor. Reflective insulation and a sticky cable mat sit outside the table. House shoppers on amazon.co.uk are covering laminate or engineered wood at 230 V. Camper shoppers are looking at a 12 V film. The [underfloor heating foil buying guide](/hub/heating/underfloor-heating-foil/sub/underfloor-heating-foil-buying-guide) sets supply, area, thermostat and floor finish before you use the ranking. A underfloor heating foil is chosen for the job it has to do. The table on this page holds the current listings.
Underfloor heating foil in this UK set is a powered mat or film under a floating floor. Reflective insulation and a sticky cable mat sit outside the table.
32 products checked · 56 hrs invested · +17,400 readers
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Personal buying guide
Question 1 of 2
Where will the foil run?
The Adept dial-thermostat foil kit is the top pick in this set on star score: 4.8 out of 5 from 16 amazon.co.uk reviews, at a shelf price of £54.99. The title includes a white dial manual thermostat and says you choose the size, so coverage is not fixed on the row. A UK review dated 13 December 2023 describes an easy fit with basic electrical knowledge, 2 mm red underlay the reviewer called suitable for heating mats, and effective heat under LVT laminate in a bathroom and a bedroom. A review dated 11 May 2025 says it heats up fast to a comfortable temperature. A review dated 29 March 2020 lists the mat, tape, a flexible probe tube, and the thermostat in the box, and says the back box was the extra part. That December 2023 install also says earthing has to stay continuous and be checked with a test meter, and the reviewer added a mini Wi-Fi switch for remote control of the dial. Laminate or engineered wood is named, carpet is not, and the title prints no voltage figure. Because the area is not stated, £54.99 is not the best value on a pounds-per-square-metre rule.
Pros
Cons
Best for: Laminate or engineered wood where you want the highest amazon.co.uk star line in this set and you will confirm the size option before ordering
Less suitable: Carpet, a buyer who needs the square metres printed on the title, and anyone who wants a programmable thermostat and a back box in the carton
Specifications
Common questions
Does this kit include a thermostat?
Yes. The title says it comes with a white dial manual thermostat. Coverage is not fixed in that title, so you confirm the size option before you order.
Which floors does the listing name?
Laminate or engineered wood. A review reports LVT. Carpet is not stated.
What is missing from the box?
One review says the back box for the thermostat is not included. The mat, tape, probe tube, and thermostat were.
The Adept 10 m² foil kit is the largest stated coverage among these 230 V kits, at 140 W/m², with a white programmable thermostat and an instruction manual. The shelf price is £164.99, about £16.50 for each stated square metre, which makes it the best value in this set on that rule. The amazon.co.uk line shows 4.5 out of 5 from 20 reviews, the same line stored on the smaller white-thermostat Adept rows, including a warm hall and conservatory on 18 January 2024 and a floor-probe fault that showed up after years. This listing states a 1 mm thickness, while the 3 m² Adept row states 0.5 cm, so you take the figure on the box you actually buy. Laminate or engineered wood is named, carpet is not, and a cable cut is not stated. Kits of 13 m² and larger, and the 11 m² kit, are the sizes Adept says contain two mats, so this 10 m² title is outside that note. Insulation and the electrician’s time sit outside the £164.99, and 10 m² is the wrong buy if the free floor is only a few square metres.
Pros
Cons
Best for: A laminate or engineered-wood floor with about 10 m² free, where the lowest pounds per stated square metre in this 230 V set is the point
Less suitable: A small room, a 12 V camper, and any finish the listing does not name, including carpet
Specifications
Common questions
Does this kit include a thermostat?
Yes. The title says it comes with a white programmable thermostat. The instruction manual is in the kit as well.
Which floors does the listing name?
Laminate or engineered wood. Carpet is not stated.
Why is the value badge on this listing?
Among 230 V kits that state an area and include a thermostat, £164.99 for 10 m² is the lowest shelf price per stated square metre in this set. That figure is £164.99 divided by 10. It is not a market survey.
The Adept 3 m² foil kit is a 140 W/m² aluminium mat on fibreglass mesh, sold with a white programmable thermostat and an instruction manual, for laminate or engineered wood. At £89.99 the shelf price is about £30 for each stated square metre, above the 7 m² and 10 m² Adept kits in this set. The amazon.co.uk line shows 4.5 out of 5 from 20 reviews, the same line as the other white-thermostat Adept rows. A review dated 18 January 2024 describes a warm floor in a hall and a conservatory on cold days, and a review dated 23 February 2022 describes a straightforward lay with tape and joining strips. The same line includes a floor-probe fault after years of use, which needed the seller’s probe specifications before it could be diagnosed. The listing says the mat can be shaped to the free floor and does not say the heating cable can be cut. This row states a 0.5 cm thickness, prints no voltage figure, and does not name carpet.
Pros
Cons
Best for: Laminate or engineered wood on a free floor of about 3 m², where you want the white programmable thermostat in the kit
Less suitable: Carpet, a free floor far from 3 m², and a buyer who needs a voltage figure printed on the listing
Specifications
Common questions
Does this kit include a thermostat?
Yes. The title says it comes with a white programmable thermostat. An instruction manual is included.
Which floors does the listing name?
Laminate or engineered wood, on concrete or wood floors. Carpet is not stated.
Do the reviews describe the fit?
Reviews call the lay straightforward and mention tape and joining strips. One review describes a later floor-probe fault.
The Adept foil kit HM140/7 is a 140 W/m² aluminium mat whose title states a 0.5 m width and a 0.5 cm thickness and does not state the square metres. The shelf price is £129.99. The part number is HM140/7/T2670W, the same T2670W suffix as the white programmable kits, but this title does not name a thermostat, so the controller is not confirmed on the row. The amazon.co.uk line shows 4.5 out of 5 from 20 reviews, the same line as those white-thermostat rows, including an easy fit and a later floor-probe fault. Laminate or engineered wood is named, and carpet is not. The mat can be shaped to the free floor, and the heating cable is not described as cuttable. Without a stated area, this £129.99 cannot be ranked per square metre against the kits that print 3 m², 3.5 m², 7 m², or 10 m².
Pros
Cons
Best for: A buyer who already knows part HM140/7/T2670W and only needs the width, thickness, and output the title does print
Less suitable: Anyone choosing by a stated area or by a thermostat named in the title
Specifications
Common questions
What area does the title state?
The title states a 0.5 m width and 0.5 cm thickness. It does not state square metres.
Which floors does the listing name?
Laminate or engineered wood. Carpet is not stated.
Is a thermostat named?
The title does not name one. The part number is HM140/7/T2670W, the same suffix as the white programmable kits, and that suffix alone does not confirm a controller in the box.
The 12 V film kit is a 100 cm by 50 cm sheet, 0.04 cm thick, rated 130 W/m² and 65 W on the 1.0 m size, with a 12 V M3 thermostat in the box, at £109.00. The listing names caravans, motorhomes, campers, boats, and similar vehicles, and the thermostat is stated with off, eco, and comfort modes plus an internal and an external sensor. The amazon.co.uk line shows 4.3 out of 5 from 66 reviews, the largest count in this set. A UK review dated 8 February 2024 records a 0.5 m² kit lifting the floor from 6°C to 24°C over five hours, with the battery still showing 12.1 V. Another UK review records about 15 A at 12 V for an hour through 6 mm laminate, and a rise only from 13.5°C to 20°C, so the reviews do not tell one temperature story. A UK review dated 14 October 2023 says the instructions were in German and the buyer could not connect the film, and a review dated 27 November 2024 says the seller replaced a broken thermostat the next day. The listing states a relay up to 20 A or 240 W, names carpet among the floating coverings, and stays on 12 V.
Pros
Cons
Best for: A camper, motorhome, caravan, or similar 12 V vehicle floor, where you can read a wiring diagram and budget the leisure-battery current
Less suitable: A 230 V house room, a buyer who needs English instructions in the box, and anyone comparing the £109 price with a 10 m² house kit
Specifications
Common questions
Does this set include a thermostat?
Yes. The listing includes a matching 12 V M3 thermostat, with off, eco, and comfort modes, plus an internal and an external sensor.
What supply does it use?
12 V, 65 W for the 1.0 m size, 130 W/m². It is a vehicle film, and it is a different job from a 230 V room kit.
Are the instructions in English?
One UK review says the instructions were in German and the buyer could not connect the film. A later review says the seller replaced a broken thermostat the next day.
The Adept 7 m² touchscreen kit is a 140 W/m² mat for laminate or engineered wood, sold with a black touchscreen programmable thermostat and an instruction manual, at £134.99, about £19 a stated square metre. The amazon.co.uk line shows 3.9 out of 5 from 10 reviews, the same line as the 3.5 m² touchscreen row, and below the white-thermostat Adept rows. One review says the display went blank in December 2023 after an install in September 2022, and the seller sent a replacement that arrived the next morning. Another, dated 17 August 2024, says a large-area order arrived as four boxes of 12 m with four thermostats for one living room, and advises against the product when the area is large because of that split. The mat can be shaped, and a cable cut is not stated. Carpet is not named. A blank display is a fault you meet after the floor is down, which is why this star line is not the top pick.
Pros
Cons
Best for: Laminate or engineered wood over about 7 m² where you want this black touchscreen and you are buying one kit, not a stack of them
Less suitable: A large room that would be covered by several kits, and anyone choosing on the higher star line in this set
Specifications
Common questions
Does this kit include a thermostat?
Yes. The title says it comes with a black touchscreen programmable thermostat. The stated area is 7 m².
Which floors does the listing name?
Laminate or engineered wood. Carpet is not stated.
What failed in the reviews?
One review says the thermostat display went blank. The seller sent a replacement. Another says a large order arrived as several smaller mats with several thermostats.
The Adept 3.5 m² touchscreen kit pairs a 140 W/m² aluminium mat with a black touchscreen programmable thermostat at £99.99, about £29 for each stated square metre. The amazon.co.uk line shows 3.9 out of 5 from 10 reviews, shared with the 7 m² touchscreen row. In that line the display went blank in December 2023 after an install in September 2022, and the seller replaced the thermostat the next morning. The same line includes a large order that arrived as four boxes of 12 m and four thermostats for one living room. This row states a 0.5 cm thickness and names laminate or engineered wood on concrete or wood floors. Carpet is not named, and the heating cable is not described as cuttable. You are buying the touchscreen at a higher price per stated square metre than the 7 m² and 10 m² kits, on a weaker star line than the white-thermostat rows.
Pros
Cons
Best for: A free floor of about 3.5 m² of laminate or engineered wood where the black touchscreen is the control you want
Less suitable: Buyers comparing on star score, carpet, and anyone covering one room with several kits
Specifications
Common questions
Does this kit include a thermostat?
Yes. The title says it comes with a black touchscreen programmable thermostat. The stated area is 3.5 m² at £99.99.
Which floors does the listing name?
Laminate or engineered wood. Carpet is not stated.
What do the reviews say about the thermostat?
One review says the display went blank and the seller replaced it. Another says a large order was split into several mats and several thermostats.
The Minco film at 50 cm by 1 m is a 200–240 V, 50/60 Hz heating film rated 140 W/m², plus or minus 10%, covering 0.5 m² at £25.99. The listing caps the surface at 45°C, allows the length to be shortened every 25 cm, and lists a weight of 430 g. It names laminates, click laminates, wood floors, and vinyl, and it does not name carpet. No thermostat is stated, and there is no amazon.co.uk review line, so the score is 0. A listing question about reptiles is unanswered. The piece has been on amazon.co.uk since 30 August 2023, and £25.99 still does not buy a controller. The 25 cm pitch is for this film only, and it is not permission to cut an Adept heating cable.
Pros
Cons
Best for: A short 230 V film run under a finish Minco names, where you already have a suitable thermostat
Less suitable: A whole room, a buyer who wants stars to read, carpet, and a 12 V camper
Specifications
Common questions
Which floors does the listing name?
Laminates, click laminates, wood floors, and vinyl. Carpet is not named on this listing.
Is a thermostat included?
The listing does not say a thermostat is included. The shelf price is £25.99 for this 0.5 m² piece.
Can the film be shortened?
The listing says it can be shortened every 25 cm. That pitch is for this Minco film. It is not a reason to cut an Adept heating cable.
The Minco film at 50 cm by 2 m is the longer loose film in this set: 200–240 V at 50/60 Hz, 140 W/m² plus or minus 10%, 1 m², at £35.99. The listing caps the surface at 45°C, allows shortening every 25 cm, and lists a weight of 800 g. Named finishes are laminates, click laminates, wood floors, and vinyl. No thermostat is stated, and there is no review line to set beside the Adept kits, so the score stays at 0. About £36 a square metre looks low next to a small Adept kit until you add the controller this listing leaves out. One square metre will not cover a whole room. Buy it when you already have a suitable 230 V thermostat and you only need this length of film.
Pros
Cons
Best for: A 1 m² run of 230 V film under laminates, click laminates, wood, or vinyl, with the controller bought separately
Less suitable: Anyone who needs a thermostat in the box, a star rating, or coverage beyond 1 m²
Specifications
Common questions
Which floors does the listing name?
Laminates, click laminates, wood floors, and vinyl. Carpet is not named.
Is a thermostat included?
The listing does not say a thermostat is included. You buy this piece when the controller is already in hand.
Can the film be shortened?
The listing says it can be shortened every 25 cm. The stated size is 50 cm by 2 m, which is 1 m².
The numeric score is the amazon.co.uk star rating multiplied by 20, using the review line stored for that row on 15 October 2026. A missing review line scores 0. Review count is shown on the row and does not add points, which is why 4.3 from 66 reviews scores 86, below 4.5 from 20 and 4.8 from 16. Three Adept rows share one 4.5-from-20 line, and two touchscreen rows share 3.9 from 10. The score follows that line. It does not treat each size as its own review population. Stated area, a thermostat in the box, and the GBP shelf price decide the best-value badge only. They do not change the score. Products Compared did not laboratory-test these heaters.
Amazon star line
100%The only input to the numeric score. Where amazon.co.uk shows a star rating and a review count, the score is that star rating multiplied by 20. A listing with no review line scores 0 and is not treated as a zero-star product. Review count is displayed and adds no points.
Separate supply, floor finish, stated area and the thermostat before you compare the shelf price. A 230 V house kit and a 12 V camper film do different jobs, and a loose film with no controller in the box is a third job. Prices below are the nine amazon.co.uk extracts, not a live re-check on 15 October 2026. We did not run a lab test. No listing states a saving on the electricity bill.
Underfloor heating foil in this UK set is a powered mat or film under a floating floor. Reflective insulation and a sticky cable mat are different products, and both were left out of this comparison, along with a TOG 0.35 underlay and a 200 W/m² cable mat whose element cannot be cut. House shoppers on amazon.co.uk are covering laminate or engineered wood at 230 V. Camper shoppers are looking at a 12 V film.
A reflective insulation roll and a TOG 0.35 underlay were left out of this set because they are not the heating element. Insulation still belongs under the heater. It is a separate buy, and it is not inside the kit price.
Adept bullets in this set name laminate or engineered wood. Carpet is unnamed on those rows. The 12 V listing names carpet among floating coverings for a vehicle. That list does not transfer to Adept, and another brand’s overlay rules do not either.
Minco says its film can be shortened every 25 cm. Adept says the mat can be shaped to the free floor, and the listings do not describe the heating cable as cuttable. Several small kits for one room can also leave you with several thermostats.
Supply comes first, because a 230 V mat and a 12 V film are different jobs. Adept kits and the Minco film are 230 V products for a dwelling. The 12 V listing is 65 W on the 1.0 m size, about 0.5 m², with a 12 V thermostat, sold for caravans, motorhomes, campers and boats. Keep that film on 12 V. Reviews on that row mention about 15 A at 12 V, and they do not tell one temperature story: one UK review recorded 6°C to 24°C over five hours, another only 13.5°C to 20°C through 6 mm laminate.
Approved Document L, 2021 edition with 2023 amendments, says electric underfloor systems need a room thermostat with a manual override. That edition was in force on 15 October 2026. The 2026 PDF starts on 24 March 2027, so it is not the rule you apply today. Adept titles here differ: a white programmable thermostat, a black touchscreen, or a white dial. One Adept title does not name a thermostat. Minco does not state one. Kept 230 V listings state 140 W/m².
Three typical situations, each with a recommendation from this comparison.
You are laying laminate or engineered wood and you want a 230 V kit with a thermostat and a printed area. The Adept 10 m² foil kit is about £164.99, about £16.50 a stated square metre, rated 4.5 from 20 reviews on a line shared with the smaller white-thermostat rows. Carpet is not named.
You need 12 V and you can budget leisure-battery current. The 12 V film kit is about £109, 65 W on the 1.0 m size, with a 12 V thermostat, rated 4.3 from 66 reviews. One UK review recorded about 15 A at 12 V. A house kit is the wrong supply.
You already have a suitable 230 V thermostat and you only need a short run. The Minco film at 50 cm by 2 m is about £35.99 for 1 m², 200–240 V, and the listing does not state a thermostat. There is no amazon.co.uk review line, so the score is 0.
The top pick is 12 V film kit, 1 m, with the highest score in this comparison (8.6 out of 10, from 66 amazon.co.uk reviews). For the lowest pounds per stated square metre among 230 V kits that include a thermostat and state an area, the best value is the Adept 10 m² kit at about £164.99, about £16.50 a stated square metre, on the shared 4.5-from-20 line. A 12 V camper film and a loose Minco piece are different jobs, and Minco has no review line to score.
Adept 10 m² foil kit
£164.99 for 10 m² is about £16.50 a stated square metre, the lowest among 230 V kits here that state an area and include a thermostat.
Editorial
Products Compared publishes British-English buying guides based on amazon.co.uk listings and public UK sources. We do not run a lab and we do not invent test scores.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources and the amazon.co.uk listings in this comparison. Listings captured 15 October 2026. Page updated October 2026.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the amazon.co.uk listings captured on 15 October 2026. We did not run a lab test.
