Best Underfloor Heating Kits UK 2026: Top Picks for Every Project

Looking for the best underfloor heating kit in the UK? We’ve done the hard work for you. Whether you’re fitting UFH in a new build, retrofitting into an existing floor or warming up a single bathroom, this guide covers our top picks.

Quick Comparison: Best UFH Kits

Kit	Best For	System Type	Coverage	Our Pick
Complete Wet UFH Kit	Extensions & single zones	Wet (in-screed)	20–240m²	Extensions & new build zones
Overlay Wet UFH Kit	Retrofit, no floor lifting	Wet (overlay)	10-180m²	Best for renovations
ProWarm MkII Mesh Kit	Bathrooms & tiled floors	Electric (screed)	1–30m²	Best for tiled single rooms
ProWarm ProGrid Cable	Awkward shapes & bathrooms	Electric (screed)	0.7–21m²	Best for irregular rooms
ProWarm Foil Mat Kit	Under wood, vinyl & carpet	Electric (dry fit)	1–24m²	Best for quick dry installs
Heatmiser Neo Air Bundle	Smart 2-zone WiFi control	Thermostat kit	Up to 2 zones	Best wireless smart control
Heatmiser neoStat Kit	Whole-home wired control	Thermostat kit	Multi-zone	Best for full home systems

What Makes a Good Underfloor Heating Kit?

The best underfloor heating kits should include the bulk of everything you need to complete your installation in one purchase. When choosing a UFH kit, look for:

• Complete materials list — Does it include everything you need to complete the installation? A detailed list of materials and installation is a must.
• Quality products — Kits built around trusted brands will last the test of time. Cheap components can fail quicker and may lead to expensive repairs.
• Ease of installation — Is this a DIY-friendly kit, or does it require a qualified installer? Good kits come with a detailed installation manual.
• Size and customisation — Does the kit cover your exact room size, or will you have material left over? Check available size increments before buying.
• Control compatibility — How is the system controlled? Make sure the kit works with your preferred thermostat setup.

Each UFH kit will have a slightly different component list and setup. Always check the full kit contents and installation manual before purchasing so you know exactly what you’re getting.

Not sure which kit is right for your project? With our free design service you get a custom kit list in 24 hours.

Best Wet UFH Kit for Extensions & Single Zones

Complete Wet Underfloor Heating Kits

Our complete wet underfloor heating kits are the go-to choice for single-zone installs; particularly extensions, open-plan rooms and new-build zones. Pipes are stapled to insulation and covered in a screed layer, delivering high heat output with excellent thermal mass. That means the floor stays warm longer, even after the system switches off.

What’s Included

• UFH Pipe
• Manifold
• 16mm Eurocones
• Manifold Control Pack
• 60mm Pipe Clips
• 25m Edge Insulation Strip
• Pipe Cutters & Reaming Tool
• Installation Manual

Kit Variations

• Coverage: 20m² to 240m²
• Pipe spacing: 100mm, 125mm, 150mm, 200mm

Key Features

• Discounted price – Up to 40% off RRP compared to buying materials individually
• Flexible pipe spacing — 100mm and 125mm spacing suits heat pump installations; 150mm and 200mm spacing is ideal for boiler systems or well-insulated properties
• Pre-calculated quantities — Sizes are worked out for you, making purchasing quick and straightforward
• Trusted components – ESBS mixing valve, Grundfos pump, WRAS approved PERT AL PERT pipe

Things to Consider

These are single-zone kits, designed for one room or area. For multi-room systems, kits can be adapted using thermostats, actuators and a wiring centre but some calculation is needed to ensure the kit fits your layout precisely.

Best for: Extensions, large open-plan rooms, single-zone in-screed installs. Perfect for trade installers wanting a fast, complete checkout.

Best Wet UFH Kit for Retrofit — Overlay System

Overlay Wet Underfloor Heating Kits (150mm Pipe Spacing)

Do you want to install wet UFH without ripping up your existing floor? Our overlay wet UFH kits are designed to sit directly on top of an existing solid subfloor, keeping floor height build-up to an absolute minimum while delivering even, efficient heat throughout the room.

What’s Included

• XPS400 Overlay Boards (150mm pipe spacing, 400kPa compressive strength, 200 micron)
• UFH Pipe
• Manifold
• 16mm Eurocones
• Manifold Control Pack
• Pipe Cutters & Reaming Tool
• Installation Manual

Key Features

• Low-profile XPS overlay boards — High compressive strength (400kPa) keeps the floor stable underfoot
• 150mm pipe spacing — Delivers high heat output even at low flow temperatures, making it heat pump compatible
• Quality manifold with 5-year warranty
• Trusted components – ESBS mixing valve, Grundfos pump, WRAS approved PERT AL PERT pipe
• No screed required — Boards pipe sits within the channels, dramatically reducing drying time vs in-screed systems

Things to Consider

Kits are available in 10m² increments, so specific room sizes may not perfectly match so you may have a small amount of board left over. Less customisable than in-screed systems as pipe spacing cant be changed.

Best for: Retrofitting wet UFH into an existing property without lifting floors. Ideal for large open-plan rooms and whole-floor renovations.

Best Electric Underfloor Heating Kits

Electric UFH kits are the simplest way to add underfloor heating to a single room. The best kit depends on your floor covering, room shape and installation method. Here are our top picks:

Best UFH Kit for Tiled Floors & Larger Rooms

ProWarm Mk2 Mesh Kit

The ProWarm Mk2 mesh mat is our top pick for tiled bathrooms, kitchens and open-plan rooms. Mats roll out easily in 0.5m widths, covering up to 30m² per kit, and can be tiled directly over or covered in a latex screed.

What’s Included: Electric UFH mesh mat, primer, roller, tape, thermostat, conduit

Coverage – 1m² to 30m²
Heat output – 100W, 150W or 200W per m²
Installation – Screed or direct tile
Shape compatibility – Best for square/regular rooms

Best for: Bathrooms, kitchens and regular-shaped rooms being tiled. Ideal for DIY installations.

Best Electric UFH Kit for Awkward Shapes & Bathrooms

ProWarm ProGrid Loose Cable System

For rooms with awkward layouts, en-suites or areas with obstacles, the ProGrid cable system offers the most flexibility. The grid system ensures accurate, even spacing and the cable can be routed around any shape.

What’s Included: ProGrid cable, add-on matting (1×1m² panels or 15m roll)

Coverage – 0.7m² to 21m²
Heat output – 115W, 150W or 230W per m² – change output by adjusting spacing
Shape compatibility – Excellent

Best for: Awkward-shaped rooms, bathrooms with obstacles, walk-in showers.

Best Electric UFH for Under Wood, Vinyl & Carpet

ProWarm Foil Mat Electric UFH Kits

Laid on a layer of insulation and rolled out across the full floor area, there’s no screed required meaning no drying time and a significantly faster installation. Wooden flooring can be placed directly on top although vinyl and carpet will require a top board like heat pak dual overlay.

What’s Included: Foil heating mat, tape, thermostat, conduit

Coverage – 1m² to 24m² (1m² increments)
Heat output – 150W per m²
Installation – Dry fit, no screed needed
Compatible floors – Wood, engineered wood, vinyl, carpet

Best for: Under engineered wood, laminate, vinyl or carpet. Great for quick installs with no wet trades required.

Best Thermostat Kits

The right thermostat kit makes the difference between a basic heating system and a smart, efficient one. Here are our top picks depending on how much control you need:

Best Wireless Smart thermostat kit

Heatmiser neoAir Bundle

Perfect for those who want WiFi app control without running wiring between rooms. The Neo Air bundle includes the neoAir wireless thermostat, RF switch and neoHub, giving you smart control of up to two zones via the Heatmiser app.

Included: neoAir wireless thermostat, RF switch, neoHub

Best for: Up to 2-zone wireless smart control. Ideal for retrofits where running new cabling is impractical.

Best for Whole-Home Wired Control

Heatmiser neoKit

For complete whole-home control, the neoStat wired kit connects multiple thermostats via a central hub, allowing you to control heating and hot water from anywhere using the Heatmiser app. The system can expand to cover every room in your home.

Included: neoStat thermostat(s), neoHub

Best for: Multi-room systems, new builds and full home heating control via 230V wired thermostats.

Best Single Home Smart Thermostat

Salus iT800WIFI Smart Thermostat

For a single-zone setup with a clean, minimalist look, the Salus iT800WIFI is a brilliant choice. A wireless thermostat and receiver give you app-based control from anywhere, with a modern touchscreen interface that suits contemporary homes.

Included: iT800WIFI thermostat, wireless receiver

Best for: Single-zone systems, modern homes, anyone wanting a minimalist smart thermostat without the complexity of a multi-zone setup.

How to Choose the Right UFH Kit for Your Project

Single room renovation or bathroom? → Go electric. Use a ProWarm Mk2 mesh mat for tiled rooms, ProGrid for awkward shapes, or foil mats under wood or vinyl.

Retrofitting UFH without lifting your floor? → The XPS overlay wet UFH kit is the answer. It sits on top of your existing subfloor with minimal height gain.

Adding an extension or building a single zone during a build? → Our complete wet UFH in-screed kit is ideal. Pick the right size and pipe spacing for your heating system.

Multi-room new build or complex project? → A custom kit is the best option. We’ll design the entire system based on your floor plan at no charge.

The best underfloor heating kit depends entirely on your project but here’s our simple guide: