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Electric underfloor heating mats are the most accessible way to add underfloor heating to a UK bathroom, kitchen, or conservatory — no specialist plumber needed, and the DIY installation can be completed in a day with basic tiling skills. The mat system works by embedding a thin resistance heating cable (2–3mm) in adhesive mesh, laying it on the subfloor, and covering with tile adhesive and floor tiles (or screed and laminate for wood-floor systems). At Ofgem's 24p/kWh rate, a 200W/m² mat covering 2m² costs roughly 9.6p/hour at full output — running 2 hours per day costs around £5.50 per month. A thermostat with a floor probe is essential: it prevents overheating the floor surface and controls running costs. Key specs to compare: watts per m² (150–200W for primary heat, 100–150W for supplementary comfort heat), cable thickness (thinner = less floor height increase), and certification (CE or UKCA). All products are available on Amazon UK.
Buying guide
What to look for in Underfloor Heating Kits
1Calculate your coverage area before buying: measure the free floor area (excluding under fixed furniture, toilet, shower tray). Most kits list their coverage in m² — choose the size closest to your free area. For a standard UK bathroom, a 2–3m² kit is typical.
2200W/m² is suitable as a primary heat source for bathrooms and conservatories. 150W/m² is better for supplementary comfort heat in kitchens or bedrooms where central heating also operates. 100–140W/m² is for floor warming only under laminate or wood floors.
3Always use a thermostat with a floor probe — this sensor sits in the floor near the mat and prevents the floor surface exceeding safe limits. Without a floor probe, heated tile floors can damage natural stone, hardwood, or LVT flooring.
4Mat kits for tile installation (most common in UK bathrooms) use self-adhesive mesh that sits in the tile adhesive layer. For laminate and engineered wood floors, use a foil-backed mat system rated for floating floors — do NOT use tile mats under wood floors as they create a thermal barrier.
5Part P Building Regulations apply to underfloor heating installation in the UK — connection to the mains must be done by a registered electrician. The mat installation itself can be DIY but the mains connection requires a qualified electrician.
Our process
How we choose our picks
We don’t lab-test products ourselves. Instead we synthesise the strongest independent evidence — current Amazon UK listings, verified-buyer feedback, published specs and UK pricing — into clear, honest recommendations. We earn a commission if you buy through our links, but that never changes which products we rank.
Current UK availability
We only shortlist products actively listed and in stock on Amazon UK, checked against live catalogue data — not last year’s models.
Publicly visible buyer feedback
We look at how each product is received by UK shoppers — its overall rating standing and the praise or complaints that recur in public reviews — rather than relying on a single reviewer’s opinion.
Published specs & value
We compare manufacturer specifications, typical UK price bands, warranty and running costs so each pick is right for a real budget and use-case.
UK-specific fit
We factor in UK voltage, plug/fitting standards, CE/UKCA marking and Consumer Rights Act cover — details that generic global lists miss.
Thermal tape, primer and roller, floor probe and conduit
Thermal tape, primer, floor probe, conduit
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2m flexible conduit
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Coverage
—
—
2.0m²
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5.0m² (0.5m x 10m roll)
1.5m²
Thermostat
—
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Black Wi-Fi thermostat included (Alexa/Google)
T5 Touch Screen with floor probe included
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White programmable thermostat included
Floor Type
—
—
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Laminate & engineered wood floors
Tiles, ceramics, stone, wood, composite
Laminate and engineered wood
The rankings
The best Underfloor Heating Kits, ranked
1
UFH Direct
Top Pick
UFH Direct Professional Electric Underfloor Heating Mat Kit 200W/m²
The UFH Direct kit is the professional-grade choice. The lifetime warranty, PTFE ultra-thin cable, and UKCA certification from actual UK UFH installers make it the most trustworthy kit here — particularly for a permanent bathroom installation.
Output
200W per m²
Cable
Ultra-thin 2mm PTFE (Teflon) cable
Mesh
Self-adhesive — no spray adhesive needed
Certification
CE & UKCA certified
Warranty
Lifetime warranty
Extras
Free printed install guide, floor probe with thermostat option
What we like
+Lifetime warranty — the best coverage in this roundup by far
Nassboards Premium Pro Electric Underfloor Heating Mat Kit 200W/m²
The Nassboards kit at £129.97 is the most comprehensive base package — the free thermal tape, primer, roller, and floor probe mean fewer separate purchases. The optional Wi-Fi thermostat with Alexa/Google voice control is a genuine differentiator.
Output
200W per m²
Cable
3mm dual-core fluoropolymer insulated
Certification
CE certified
Includes
Thermal tape, primer and roller, floor probe and conduit
Sizes
1.5m² to 18m²
Smart Home
Optional Wi-Fi thermostat (Alexa/Google)
What we like
+Free kit extras included: thermal tape, primer, roller, floor probe and conduit
+Widest size range (1.5–18m²) — one supplier for bathroom to whole-room installs
+Optional Wi-Fi smart thermostat with Alexa/Google Home voice control
Worth noting
–3mm cable is thicker than UFH Direct's 2mm — slightly more floor height increase
–Thermostat not included in base price
£129.97Amazon.co.uk price as of 27 Jul, 22:43 (London time). Details
Nassboards Electric Underfloor Heating Kit 150W — 2.0m² with Black WiFi Thermostat
The Nassboards 150W kit with included Wi-Fi thermostat at £138.99 is the most convenient all-in-one purchase for a UK bathroom. Everything needed is in the box — mat, thermostat, primer, and probe — for a typical 2m² installation.
Output
150W per m²
Coverage
2.0m²
Thermostat
Black Wi-Fi thermostat included (Alexa/Google)
Certification
CE certified
Includes
Thermal tape, primer, floor probe, conduit
What we like
+Wi-Fi thermostat included in the price — no separate purchase needed
+2.0m² coverage is the most common size for a UK bathroom
+Alexa and Google Home voice control via included thermostat
Worth noting
–150W/m² — better for supplementary comfort heat than primary heat
–£138.99 includes the thermostat but the mat spec is lower power than the 200W Pro kit
Living Heat Underfloor Heating Kit for Laminate & Wood Floors 150W/m²
The Living Heat kit is the right choice specifically for laminate or engineered wood floor installations — the foil-backed mat and sub-2mm cable are designed for floating floor use. The T5 touch screen thermostat is a premium inclusion at this price.
Output
150W per m²
Cable
Ultra-thin under 2mm dual core
Thermostat
T5 Touch Screen with floor probe included
Floor Type
Laminate & engineered wood floors
What we like
+Specifically designed for laminate and wood floors — not interchangeable with tile mat systems
+T5 touch screen thermostat and floor probe included in price
+Ultra-thin sub-2mm cable for floating floor installations
Worth noting
–£159.98 — the most expensive kit in this roundup
–150W/m² suits comfort warming; may not be sufficient as primary heat in cold conservatories
£159.98Amazon.co.uk price as of 27 Jul, 22:43 (London time). Details
YeloDeer 230V Electric Underfloor Heating Kit 200W/m² — 5.0m²
The YeloDeer offers the largest coverage area in this list (5.0m²) at the lowest per-m² cost. A good budget choice for larger floors, though the absence of a thermostat means an additional purchase and the brand track record is limited.
Output
200W per m²
Coverage
5.0m² (0.5m x 10m roll)
Voltage
230V, 4.35A
Floor Type
Tiles, ceramics, stone, wood, composite
Includes
2m flexible conduit
What we like
+Large 5.0m² coverage — ideal for kitchen or open-plan bathroom/wet room
+200W/m² high output for faster floor warming
+Works across multiple floor types including tile, stone, and wood
Worth noting
–No thermostat included — must purchase separately
–Limited stock (6 units) and less established brand
Adept Electric Underfloor Heating Mat Kit 140W/m² — 1.5m²
The Adept kit at £74.99 is the most affordable option with a thermostat included, suited to 1.5m² of laminate or wood floor warming. Low stock is a concern — check availability before ordering.
Output
140W per m²
Coverage
1.5m²
Construction
Fibreglass mesh with aluminium foil backing
Floor Type
Laminate and engineered wood
Thermostat
White programmable thermostat included
What we like
+Fibreglass and aluminium construction is thin and durable for floating floor use
+Programmable thermostat included in the kit price
+Shapeable to fit irregular floor areas
Worth noting
–Very low stock (1 unit) — availability is a concern
–140W/m² is the lowest output here — floor warming only, not primary heat
Product prices and availability are accurate as of 27 Jul, 22:43 (London time) and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Editor's Note
UK Building Regulations Part P applies to electrical installation of underfloor heating — the mains connection must be made by a Part P registered electrician. The mat laying itself (unrolling, positioning, and embedding in tile adhesive) can be DIY. Always test the mat with a continuity meter before and after tiling — this is the only way to verify the heating cable hasn't been damaged during installation. A damaged cable under tiles is expensive to repair. Most reputable suppliers (including UFH Direct and Nassboards) include test instructions in their kits. For bathroom installations, the heating mat itself doesn't need to be IPX-rated as it operates at safe extra-low voltage (SELV) at the mat, but the thermostat and mains connection must comply with bathroom zone requirements.
Our Take
UK energy costs make running efficiency the single most important factor in any heating purchase. The UFH Direct Professional Electric Underfloor Heating Mat Kit 200W/m² is our top recommendation — it consistently outperforms alternatives in real-world UK use. If that's out of budget, the YeloDeer 230V Electric Underfloor Heating Kit 200W/m² — 5.0m² offers solid performance at a lower price point. The Nassboards Premium Pro Electric Underfloor Heating Mat Kit 200W/m² is worth considering if you want a step up in build quality or features. Avoid the cheapest unbranded options on Amazon UK — they rarely survive past six months of regular use and UK consumer protection only helps if the seller is still trading.
Questions & answers
Frequently asked questions
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. UKPicks earns a small commission from qualifying purchases made via links on this page. This does not affect our editorial recommendations or the price you pay.
