StickyMat and EcoFloor Heating Mats Guide UK

Warmup StickyMat installed on a kitchen subfloor showing the self-adhesive heating mat laid beneath tiles

StickyMat & EcoFloor Heating Mats Guide UK

Heating mats are one of the most popular electric underfloor heating options for tile and stone floors, especially in bathrooms, kitchens, en-suites and other rooms where you want quick installation and even warmth underfoot. Because the cable is already attached to a mesh backing, systems such as Warmup StickyMat and Flexel EcoFloor are faster to position than loose wire in many regular-shaped rooms and give a tidy, predictable layout.

This guide explains how heating mat systems work, where they fit best, what build-up is normally required, which accessories buyers often need, and how Warmup StickyMat and Flexel EcoFloor compare with other electric underfloor heating systems. It is designed to help both homeowners and installers choose the right products and avoid common mistakes before tiling begins.

Important safety note:
All electric underfloor heating systems must be connected to a circuit protected by a 30mA RCD. Final electrical connection and testing must always be completed by a qualified electrician in line with current wiring regulations.
Still comparing systems first?
Our Best Electric Underfloor Heating Systems UK Buyer Guide, Electric Underfloor Heating Systems Collection Guide and Electric Underfloor Heating Installation Guide UK will help you compare heating mats with foil heating, carbon film, loose wire, decoupling systems and in-screed cables. For full information on the best thermostats to use, refer to our Underfloor Heating Thermostats Guide.

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What Are Heating Mat Systems?

Heating mats are electric underfloor heating systems where the heating cable is already spaced and attached to a mesh mat. The installer rolls the mat out over the free floor area, cuts the mesh only when turning the layout, and then embeds the system in tile adhesive or levelling compound before the final floor finish goes down.

That pre-spaced layout is one of the main reasons buyers like it. Systems such as Warmup StickyMat and Flexel EcoFloor give the speed and simplicity of a mat system while still delivering the benefits people want from electric underfloor heating: warmer tiles, even heat distribution and a more comfortable room.

How Heating Mats Work

1
Prepare the subfloor

The floor should be level, stable, clean and suitable for the tiled build-up.

2
Add insulation

Insulation boards are usually recommended to reduce heat loss and improve warm-up times.

3
Lay the mat system

The mat rolls out quickly across the free floor area, with the mesh cut to turn where needed.

4
Embed and tile over

The heating is covered with adhesive or levelling compound before the final tiled floor is installed.

Where Heating Mats Work Best

Heating mats are especially well suited to:

  • Bathrooms where warm tiles make a noticeable comfort difference
  • Kitchens with tiled or stone floors
  • En-suites and utility rooms where quick, neat installation matters
  • Regular-shaped rooms where a mat is faster to install than loose cable
  • Renovation projects where you want a practical electric underfloor heating system with low extra build-up
Buyer tip:
If the room has an awkward shape, lots of obstacles, curved layouts or many small cut-arounds, a loose wire system may sometimes be more flexible than a mat.

Warmup StickyMat vs Flexel EcoFloor

System Best For Typical Outputs Main Strength Typical Rooms
Warmup StickyMat Regular tiled rooms 150W/m² and 220W/m² Well-known quick-install mat system with strong thermostat options Bathrooms, kitchens, en-suites, utility rooms
Flexel EcoFloor Regular tiled rooms 150W/m² and 200W/m² Comparable mesh mat format with a wide range of room coverage sizes Bathrooms, kitchens, hallways, tiled living spaces
Loose Wire Awkward or irregular layouts Varies by system More freedom around fixtures and cut-arounds Small bathrooms, complex kitchens, tricky layouts

Heating Mat Product Options

Professional installer laying Warmup StickyMat electric underfloor heating onto a prepared subfloor
Warmup StickyMat
Warmup StickyMat System 150W/m²

A popular choice for tiled rooms where you want efficient electric underfloor heating and a fast installation process.

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Warmup StickyMat electric underfloor heating mat with pre-spaced heating cable and branded packaging designed for fast installation beneath tiled floors
Warmup StickyMat
StickyMat System 220W/m²

A higher output mat option often chosen where faster heat-up or a stronger electric heating response is wanted in tiled rooms.

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Flexel EcoFloor underfloor heating cable mat on a white background
Flexel EcoFloor
EcoFloor System 150W/m²

A comparable lower-output heating mat for tiled rooms where efficient steady warmth is the priority.

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Flexel EcoFloor underfloor heating cable mat roll with visible heating cable
Flexel EcoFloor
EcoFloor System 200W/m²

A higher output EcoFloor option often used in tiled areas where a stronger response is needed.

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Accessories and Controls Buyers Usually Need

Insulation boards for electric underfloor heating installations beneath tiled floors
Installation Essential
Insulation Boards

Usually recommended beneath heating mats to reduce heat loss into the subfloor and improve warm-up speed.

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Smart underfloor heating thermostat with smartphone control for electric floor heating
Control Essential
Thermostats & Smart Controls

A thermostat with a floor probe is one of the most important parts of a reliable heating mat installation.

Warmup floor probe accessory for underfloor heating thermostat installations
Project Extras
UFH Accessories

Depending on the project, you may also need probes, conduit, primers, levelling materials or other finishing items.

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Need help choosing between outputs and systems?
See our Heating Mats Running Costs + Best Options Guide for output comparisons, running cost examples and buyer advice.

Typical Heating Mat Floor Build-Up

A typical tiled heating mat floor build-up is:

Subfloor → insulation boards (recommended) → heating mat system → flexible tile adhesive or levelling compound → tile or stone floor finish

The exact build-up can vary depending on whether the subfloor is timber or concrete, how much floor height is available, and the final floor finish being installed. If you are unsure about the right sequence, our Electric Underfloor Heating Installation Guide and Insulation Guide will help.

Heating Mat Installation Overview

  1. Make sure the subfloor is clean, dry, stable and suitable for tiling.
  2. Install insulation boards where appropriate to reduce heat loss.
  3. Measure the net heated area, excluding permanent fixtures, sanitaryware and fixed furniture.
  4. Plan the thermostat position and floor probe route before laying the mat.
  5. Roll out the mat across the free floor area.
  6. Cut the mesh only to turn the mat where needed. Never cut the heating cable.
  7. Install the floor probe centrally between adjacent cable runs.
  8. Test resistance before, during and after installation.
  9. Embed the heating mat in suitable tile adhesive or levelling compound.
  10. Tile over the system using materials suitable for underfloor heating.
  11. The final electrical connection must be completed by a qualified electrician.
Important installation point:
Heating mats should be installed only in the free floor area. Avoid laying them beneath baths, shower trays, fitted kitchen units or large fixed furniture unless the manufacturer’s guidance specifically allows it.
Are you planning a full electric underfloor heating project?
You may also want to read: Electric Underfloor Heating Installation Guide

Heating Mats vs Other Electric Underfloor Heating Systems

System Best Floor Finish Installation Style Main Advantage Best For
Warmup StickyMat / Flexel EcoFloor Tiles / stone Wet install Fast, tidy, pre-spaced layout Regular-shaped bathrooms and kitchens
Loose Wire Tiles / stone Wet install More layout flexibility Awkward or irregular rooms
Foil Heating Laminate / engineered wood / some vinyl builds Dry install Low build-up under floating floors Living rooms and bedrooms
Carbon Film Laminate / engineered wood Dry install Wide coverage beneath floating floors Larger dry areas
Decoupling System Tiles / stone Wet install Heating plus tile decoupling Projects where movement protection matters
In-Screed New build / screeded floors Buried in screed Permanent build-up with thermal mass New builds and major renovations
Want the bigger comparison?
Read our Best Electric UFH Systems Buyer Guide and Electric UFH Systems Collection Guide for a fuller side-by-side view.

When Heating Mats Are the Best Choice

  • You are fitting tiles or stone
  • The room shape is fairly regular
  • You want quicker installation than loose cable
  • You want predictable cable spacing
  • You are renovating a bathroom, kitchen or utility room

When Another System May Be Better

  • Choose loose wire for awkward or heavily cut-around rooms
  • Choose foil heating for laminate, engineered wood and selected floating-floor vinyl or carpet builds
  • Choose carbon film for some floating laminate or engineered wood projects
  • Choose decoupling systems where tile movement protection is an important part of the build-up

Thermostats for Heating Mats

A good thermostat makes a huge difference to how electric underfloor heating feels in day-to-day use. With heating mats, a thermostat helps manage heat-up times, comfort, floor protection and running efficiency. Smart models also make scheduling easier, so the room warms up when you need it instead of running longer than necessary.

Warmup 7iE smart matter WiFi thermostat for electric underfloor heating
Smart Thermostat
Warmup 7iE Smart Matter WiFi Thermostat

A premium smart control option for buyers who want advanced connectivity, scheduling and polished day-to-day control.

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Warmup 6iE WiFi thermostat with smartphone app control
Smart Thermostat
Warmup 6iE WiFi Thermostat

A strong all-round thermostat choice for electric floor heating with app control and smart scheduling features.

Warmup Element WiFi thermostat for underfloor heating
Simple Smart Control
Warmup Element WiFi Thermostat

A cleaner, simpler smart thermostat option for buyers who want app-based control without unnecessary complication.

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For a fuller thermostat comparison, including Flexel controls, probes and multi-zone options, see the Underfloor Heating Thermostats Guide.

Common Buyer Questions About Heating Mats

Are heating mats suitable for bathrooms?
Yes. Heating mats are among the most popular electric underfloor heating options for bathrooms because they work very well beneath tiled floors and are relatively quick to install in regular-shaped spaces.

Do I need insulation boards under heating mats?
In most cases, yes. Insulation boards help reduce heat loss into the subfloor and usually improve warm-up times and efficiency.

Can I cut a heating mat to fit my room?
You can cut the mesh backing to turn and reposition the mat, but you must never cut the heating cable.

Can heating mats be used under laminate or engineered wood?
Not usually as the standard choice. Heating mats are mainly designed for tile and stone floors. Laminate and engineered wood are more commonly paired with foil heating or carbon film systems.

Are Warmup StickyMat and Flexel EcoFloor basically the same type of system?
Yes. Both are heating mat systems for tiled floors. The main differences usually come down to output options, room coverage sizes, brand preference and control choices.

Are heating mats better than loose wire?
It depends on the room. Heating mats are usually quicker in regular-shaped rooms, while loose wire gives more flexibility in awkward layouts.

Can I install a heating mat myself?
You can often handle floor preparation and mat layout yourself, but the final electrical connection and commissioning must always be completed by a qualified electrician.

How long should I wait before turning on heating mats?
Do not switch the system on until the tile adhesive, levelling compound and flooring materials have fully cured in line with the manufacturer’s installation guidance.

What thermostat is best for heating mats?
A thermostat with a floor probe is the key requirement. Popular options include the Warmup 7iE, 6iE and Element, depending on the level of smart control you want.

Helpful Internal Links for Buyers

Related Guides

Ready to Buy Heating Mats?

Ready to buy? Start with the heating mat system, then add suitable insulation, controls and accessories so the whole tiled floor build-up works together properly.