Thermotech Underfloor Heating

Underfloor heating experts, serving South and West Wales for over 32 years.

What we do

Underfloor Heating Services

Floor insulation

Water Heating Systems

Wet underfloor heating involves warm water circulating through a series of pipes, laid under the floor surface. Generating a simple radiant heat that is transferred throughout your home.

Repair Work Drawings for Building

Underfloor heating design

To ensure maximum efficiency, each warm water underfloor heating system is designed and installed by our engineers to meet the requirements of your property.

Underfloor Heat Adjustment 2

Underfloor Heating Repairs

Using our state of the art technology we can provide insight into any repairs required if you should experience faults with your underfloor heating systems. We can evaluate the repairs required and provide you with a quote for the cost of repair.

Floor Prep

What is underfloor heating?

The principles of heating under the floor have been known since Roman times when warm air, from fires, was ducted under the floor. Many methods have evolved since then including electric underfloor heating and water based (wet underfloor heating).

Underfloor heating can be produced in many different methods, but the goal of underfloor heating is to reduce energy bills by heating your home through flexible tubing that is embedded in the floor of your home.

Heating from the floor up eliminates the disadvantages of conventional radiators, and a water based underfloor heating system gives a controllable, comfortable, economical and environmentally friendly alternative for new building developments or where major refurbishment is taking place.


Benefits of Underfloor Heating

Eliminates the need for conventional radiators

Economical and environmentally friendly alternative to conventional heating systems

Available for installation in most conventional homes and office spaces

Flexible control of heating throughout the home

What We Do

We will design a wet underfloor heating system based on your plans and your needs. This may take into account alternative energy forms such as solar and geothermal as the heat generator.
We can also take into account such aspects as positioning and concealing the underfloor heating manifold. 

Installation process

The simple installation process begins with the laying of insulation such as Celotex, this can be done by our helpful team, or if you wish carried out by yourselves prior to the installation. After the insulation, we install and secure the underfloor heating loops, each heating loop is returned to an accessible manifold with no intervening joints and each underfloor heating zone is connected to actuator heads for thermostatic control. 

Finally a high pressure test is carried out on the underfloor heating loops to ensure satisfactory results, you’ll receive a certificate with the thermotech engineer. Once you have received this you are clear to install your flooring directly above the heating loops. 

Underfloor Heating Pipe 2

Speak to an expert today

Our professional team will conduct a site survey in which we’ll provide you with a completely bespoke and affordable quote for the cost of your home.

Underfloor Heat Adjustment


Our trained Thermotech technicians can undertake repairs on a wide range of warm water underfloor heating systems, in residential and commercial properties.

Using state of the art diagnostic equipment, including thermal imaging equipment and digital test equipment, we are able to identify underfloor heating problems including those problems where the underfloor pipe loops that carry the water have been damaged.

What our customers have to say....

Frequently Asked Questions

Yes, providing that you lay it to the appropriate standard. In particular there should be no
gaps, joints should be staggered, the whole floor must be insulated including that fiddly 36mm down one side, to prevent thermal bridging when the screed is laid. If you’d prefer to leave it to us then that’s fine and all our standard quotations include the labour cost for this. 

If insulation has been laid and does not comply with current regulations then we reserve the right to suspend installation. Furthermore, we will make an additional charge if this delays the progress of the installation.

Just about any floor covering can be applied on top of UFH, including carpet (ideally with an underlay having a combined TOG value less than 1.5)

  • Ceramic and Slate tiles
  • Vinyl
  • Wood

Thinner floorings will generally have a low thermal inertia, and allow a faster response time by the underfloor heating loops to changes in temperature required by, people entering or leaving rooms or to sudden changes in habitation patterns within a household such as someone visiting or coming to stay for a day or two.

These changes do not normally occur, or have already been considered at the design stage, in industrial and commercial premises and in these cases a covering with a higher thermal inertia can be considered.

Typically the installation takes between 3-4 days.

Yes, we are able to offer a fault finding and repair service on a wide range of water based domestic and commercial underfloor heating systems. Using thermal image equipment we are even able to identify problem areas within the floor itself and suggest remedies, or repair the system. We can provide a report and recommendation service only or offer a repair solution.

In most cases underfloor heating faults can be fixed with a minimum of disruption. However, if the fix involves work to the heating loops then some disruption will be inevitable. The amount will depend on the design of the underfloor heating system, the construction of the floor and the exact cause of the breakdown.

Please note that due to the range of systems available we cannot give advice over the telephone or by email to underfloor heating faults, causes or possible remedies. If you would like further information on underfloor heating repairs where the system was installed by someone other than Thermotech please complete the Enquiry Form and we will contact you.

A reduction in the temperature from 21 to 20 can result in a 10% reduction in energy required and subsequently running costs and carbon emissions. Therefore the more control that you have, the greater the potential savings. Independent control in areas that have different heating needs, such as bathrooms, bedrooms and living areas goes a long way to achieving this.