How Much Does Underfloor Heating Cost in the UK?

Underfloor heating is becoming increasingly popular across the UK thanks to its energy efficiency, comfort and compatibility with modern heating systems such as air source heat pumps. But one of the most common questions homeowners ask is:

How much does underfloor heating cost in the UK?

In this guide, we'll break down installation costs, running costs and the factors that affect the price of underfloor heating.

What Does Underfloor Heating Cost?

The cost of underfloor heating varies depending on the type of system, the size of the area being heated and whether it's being installed in a new build or an existing property.

Electric Underfloor Heating Costs

Electric systems are typically cheaper to install but more expensive to run.

Room Size

Estimated Cost

Bathroom (5m²)

£300 - £700

Kitchen (15m²)

£700 - £1,500

Large Room (30m²)

£1,500 - £2,500

Electric underfloor heating is ideal for smaller rooms and renovations where minimal floor height increase is required.

Wet Underfloor Heating Costs

Water-based underfloor heating systems cost more to install but offer lower running costs and are ideal for whole-house heating.

Area

Estimated Cost

Single Room

£1,500 - £3,000

Ground Floor

£3,500 - £7,000

Whole House

£8,000 - £15,000+

Wet systems are particularly efficient when paired with an air source heat pump.

What Affects the Cost of Underfloor Heating?

Several factors influence the overall installation cost:

Property Type

Installing underfloor heating in a new build is generally simpler and cheaper than retrofitting an existing property.

Floor Area

Larger spaces require more pipework, insulation and labour, increasing the overall cost.

Floor Construction

Concrete floors, suspended timber floors and existing floor finishes all affect installation methods and costs.

Floor Build-Up Height

Low-profile systems are available for retrofit projects where raising floor levels must be kept to a minimum.

Heat Source

Underfloor heating can be connected to:

Gas boilers

Air source heat pumps

Ground source heat pumps

Hybrid systems

How Much Does Underfloor Heating Cost to Run?

Underfloor heating operates at lower temperatures than traditional radiators, making it highly efficient.

Typical flow temperatures:

Radiators: 65°C – 75°C

Underfloor heating: 35°C – 45°C

Because of this, underfloor heating works exceptionally well with heat pumps and can help reduce energy consumption when properly designed and insulated.

Actual running costs depend on:

Energy prices

Home insulation levels

Floor coverings

Thermostat settings

Heat source efficiency

Is Underfloor Heating Worth It?

Many homeowners choose underfloor heating because it offers:

Improved Comfort

Heat is distributed evenly throughout the room, eliminating cold spots.

Increased Energy Efficiency

Lower flow temperatures can improve heating efficiency and reduce energy bills.

More Space

Without radiators taking up wall space, rooms can be designed more freely.

Compatibility with Heat Pumps

Underfloor heating is one of the most effective heat emitters for air source heat pumps.

Increased Property Appeal

Modern heating systems can add value and appeal to your home.

Can Underfloor Heating Be Installed in Existing Homes?

Yes. Modern low-profile systems make underfloor heating suitable for many renovation projects.

Popular applications include:

Kitchen extensions

Bathrooms

Open-plan living spaces

Whole-house renovations

Professional design is important to ensure the system delivers the required heat output without excessive floor height increases.

Underfloor Heating Installation Across Liverpool, Wirral and Cheshire

At 21 Degree Heating, we design and install energy-efficient underfloor heating systems for new builds, extensions and renovation projects throughout Liverpool, Wirral, Warrington and surrounding areas.

Whether you're looking to heat a single room or an entire home, we can recommend the right solution to suit your property and budget.

Get a Free Underfloor Heating Quote

Thinking about installing underfloor heating?

Our experienced team can provide:

✅ Free home surveys

✅ Expert system design

✅ Wet and low-profile underfloor heating systems

✅ Heat pump integration

✅ Professional installation throughout Merseyside and Cheshire

Call 0151 272 0152 or contact 21 Degree Heating today to arrange your free quotation.