How much does underfloor heating cost to install in Exmouth?

Electric underfloor heating for a single room (bathroom or kitchen) typically costs £800 to £2,500 installed. A wet system for a whole ground floor costs £3,000 to £5,500. Whole-house wet systems in new builds range from £5,000 to £8,000. The exact cost depends on floor area, system type and how much floor preparation is needed.

Is underfloor heating cheaper to run than radiators?

Wet underfloor heating is generally cheaper to run than radiators because it operates at a lower water temperature (35–45°C vs 60–75°C for radiators), which makes your boiler or heat pump more efficient. Electric underfloor heating costs more to run than gas central heating because electricity is roughly four times the price of gas per kWh. Electric systems work best as supplementary heating in individual rooms rather than as a whole-house solution.

Can I retrofit underfloor heating in an existing Exmouth home?

Yes, but it depends on the system type. Electric mats are straightforward to retrofit — they are only 3–4mm thick and can go under new tiles or LVT with minimal disruption. Wet systems are more involved because the pipes and screed add 50–75mm to the floor height, which affects door clearances, skirting boards and step heights. Some low-profile wet systems are available at around 15–20mm total, but they cost more and have slightly lower heat output.

Does underfloor heating work with a heat pump?

Underfloor heating is the ideal partner for a heat pump. Heat pumps work most efficiently at low flow temperatures (35–45°C), which is exactly the temperature range underfloor heating uses. Radiators typically need 60–75°C, which forces the heat pump to work harder and reduces its efficiency. If you are considering a heat pump for your Exmouth home, underfloor heating will give you the best performance and lowest running costs.

How long does underfloor heating take to install?

An electric mat system in a single bathroom can be installed in a day. A wet system for a full ground floor typically takes 2 to 3 days for the pipe installation, plus drying time for the screed — usually 3 to 6 weeks depending on thickness and type. Liquid screed dries faster than traditional sand and cement. The total project timeline depends on the floor finish going on top.

Can I have underfloor heating upstairs?

Yes, both electric and wet systems can be installed on upper floors. Electric mats are lightweight and add no structural load. Wet systems are heavier due to the screed and water, so a structural check may be needed for older properties. Many Exmouth homes built in the last 20 years have floors strong enough to support a wet system upstairs without modification.

Do I need planning permission for underfloor heating?

No. Underfloor heating is classed as an internal alteration and does not require planning permission or building regulations approval in most cases. However, if the installation is part of a larger renovation that involves structural changes, building control may need to inspect the insulation and floor build-up to ensure it meets current energy efficiency standards.

Underfloor Heating Installation in Exmouth

Thinking about underfloor heating for your home? Whether you want warm tiles in the bathroom or a full wet system for a new build, find local installers in Exmouth, compare costs and learn which system suits your property.

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Wet vs Electric: Two Types of Underfloor Heating

The right system depends on whether you are building new, renovating or adding warmth to a single room. Here is how they compare.

Wet (Water-Based) Underfloor Heating

£3,000–£8,000

Warm water is pumped through a network of pipes laid beneath the floor, connected to your boiler or heat pump. The most efficient option for whole-house heating and new builds, but more disruptive to install in existing homes because the floor level needs raising or the subfloor needs excavating.

Pros

Lower running costs than electric — typically 20–40% cheaper
Works efficiently with heat pumps and condensing boilers
Heats large areas evenly and consistently
Long lifespan — pipes last 50+ years with minimal maintenance

Cons

Higher upfront installation cost
Requires significant floor work — best suited to new builds or major renovations
Slower to heat up (30–60 minutes) but retains heat well
Needs a manifold and pump, taking up some cupboard space

Electric Underfloor Heating

£800–£2,500

Electric heating mats or loose cable are laid directly beneath the floor finish. Much simpler to install than wet systems — ideal for retrofitting a single room like a bathroom or kitchen without major building work. The mats are only 3–4mm thick, so they add virtually nothing to the floor height.

Pros

Much cheaper and easier to install — often a DIY-friendly job
Minimal floor height increase (3–4mm)
Heats up quickly (15–30 minutes)
No boiler connection needed — each room has its own thermostat

Cons

Higher running costs — electricity is roughly 4x the price of gas per kWh
Best for smaller areas (bathrooms, en-suites, kitchens)
Not practical as a whole-house primary heating system
Mats cannot be repaired easily if damaged during installation

Which Floor Types Work with Underfloor Heating?

Not every floor covering conducts heat equally. Here is how the most common flooring options perform with underfloor heating.

Tile and Stone

The best conductor of heat and the most popular choice for underfloor heating. Ceramic tiles, porcelain and natural stone all work extremely well with both wet and electric systems. Heat transfers quickly and the floor feels noticeably warm underfoot.

Engineered Wood

A good option — engineered wood handles the temperature changes better than solid wood because its layered construction resists warping. Keep the surface temperature below 27°C to protect the finish. Most manufacturers approve their engineered boards for use with underfloor heating.

Luxury Vinyl Tile (LVT)

Works well and is popular in Exmouth kitchens and bathrooms. LVT is thin and conducts heat efficiently. Check the manufacturer temperature limit — most allow up to 27°C surface temperature. Avoid cheap vinyl as it can discolour with sustained heat.

Carpet

Possible but not ideal. Carpet acts as an insulator, reducing heat output by 15–25% depending on the tog rating. If you want underfloor heating with carpet, choose a low-tog carpet (under 1.5 tog) with a thin underlay. Avoid thick pile or high-tog combinations.

Solid Wood

The trickiest option. Solid wood can expand, contract and warp with temperature changes. If you must use solid wood, choose narrow boards (under 150mm wide) in a stable species like oak, and ensure the system has a surface temperature limit of 27°C. Many installers advise against it.

How Underfloor Heating Is Installed

Whether wet or electric, the installation follows a similar sequence. Here is what to expect.

Survey and design

A heating engineer visits your property to assess the subfloor, insulation and heat loss. They calculate the heating output needed for each room and design the pipe or cable layout. This is essential — underfloor heating must be designed to match your home, not guessed.

Insulation

Insulation boards are laid over the subfloor to direct heat upwards into the room rather than down into the ground. Without proper insulation, you lose a significant amount of energy. This step is especially important for ground-floor rooms in older Exmouth homes.

Pipe or mat installation

For wet systems, pipes are clipped or stapled to the insulation in a serpentine pattern, spaced evenly to distribute heat. For electric systems, heating mats are rolled out or loose cable is fixed in place. The system is then pressure-tested before any floor covering goes down.

Screed or levelling

Wet systems are typically covered with a layer of screed (sand and cement mix) or liquid screed, which encases the pipes and acts as a thermal mass to store and release heat. Electric mats are covered with self-levelling compound or tile adhesive. Drying time for screed is usually 1 day per millimetre of thickness.

Commissioning and controls

Once the screed has cured, the system is gradually brought up to temperature over several days — never fired up at full heat immediately. A programmable thermostat is installed for each zone so you can control temperatures room by room and set schedules.

Underfloor Heating Costs in Exmouth

Typical prices for underfloor heating installation in the Exmouth area for 2026. For a full breakdown of plumbing rates, see our plumber costs guide, or get a tailored estimate with our cost calculator.

Service	Typical Cost
Electric mat system (per m², materials only)	£30–£60
Electric system installed (typical bathroom, 4–6m²)	£800–£1,500
Electric system installed (typical kitchen, 10–15m²)	£1,200–£2,500
Wet system installed (per m², inc. materials and labour)	£50–£80
Wet system installed (typical ground floor, 40–60m²)	£3,000–£5,500
Wet system installed (whole house, new build)	£5,000–£8,000
Thermostat supply and installation (per zone)	£100–£250
Screed or self-levelling compound (per m²)	£15–£25

Prices are estimates for 2026. Always get a written quote before work begins.

Underfloor Heating FAQs

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Not sure if underfloor heating is right for you? Read our underfloor heating vs radiators comparison. Need your existing radiators fixed instead? See our radiator repair page. For urgent issues, visit our emergency plumber guide.