Underfloor Heating Systems

Underfloor heating is the invisible heating system

With underfloor heating there is no requirement for radiators.

Free up your wall space and enjoyable a comfortable heat from head to toe.

underfloor heating coil before concrete slab is laid

Consumer Benefits

Save energy and the environment; Save up to 30% in your homes heating energy usage.

The gentle radiant heat provided by Underfloor heating acts directly on the body without the intermediate stage of first warming the room air.

The result: the same comfort level, but with a 2° C lower room temperature. And this is beneficial to your health, because warm feet and cool head is exactly what the human body require

diagram of underfloor heating

How it works

With a water-based underfloor heating system, a series of pipes connected to your boiler circulate warm water throughout the floor to heat the space.
Because the heat emitted from an underfloor system is more evenly distributed than a single radiator, the system can use water at a lower temperature so it’s a more efficient way of heating your home.
Underfloor heating utilizes 90% radiant heat and 10% convective heat.  Radiant heat is far more efficient than convective heat.  With underfloor heating you are heating objects directly and not the air.

Is my home suitable?

The underfloor heating systems we install are very flexible and we can install to virtually any floor type;

We can install underfloor heating to:

Ground floor solid concrete floors
Bison block and beam floors
Ground floor suspended floors
First floor timber suspended floors (traditional joists, I Joists and eco joists)

underfloor heating c ross section

Types of system

underfloor heatingWe install the whole floor make up from the solid concrete up to the finished floor level.

Typical Ground floor underfloor heating system using solid floors

Floor preparation
  • 100mm Phenolic Insulation with a heavy guage membrane laid on top
  • 25mm phenolic edge insulation attached to external walls.
  • 10mm foam expansion foam around the perimeter
Underfloor heat system
  • 16mm Uponor Pipework laid at 150mm centres fixed using U Clips connected to a central manifold
Floor finish
  • 65mm sand and cement screed with fibres or 50mm liquid screed poured over pipes.
  • Tile, Low tog carpet and underlay (
Floor preparation
  • Lay 75mm phenolic insulation between joists supported by 1 inch batons running the length of the joist.
  • Lay edge insulation on external walls at end of joists
  • Notch 16mm grove out of joists at edge of room to crossover into next joist
Underfloor heat system
  • Lay 16mm pipework at 200mm centres between joists on tacked onto the phenolic insulation via U clips
Floor finish
  • Pour 1 inch dry mix screed on top of pipework up to the top of the joist ensuring to cover the whole width of the joist
  • Install 18mm tounge and grove flooring on top of joists ( screw and glue) then carpet or tile as usual.
Floor preparation
  • Support 150mm fibreglass / rockwool insulation between joists flush to the top of the joist
  • Notch 16mm grove out of joists at edge of room to crossover into next joist
  • Lay edge insulation on external walls at end of joists
Underfloor heat system
  • Install aluminium heat emission plates between joists, pressing down the insulation and ensuring there is no air gap between heat emission plates and insulation
  • Lay 16mm Pipework at 200mm centres in groove of heat emission plate
Floor finish
  • Install 18mm tounge and grove flooring on top of joists ( screw and glue) then carpet or tile as usual
  • First floor timber suspended floors (using I Joists and eco joists)
  • As above but must install a 1inch baton on top of the joist so underfloor heating pipes can cross into joists
  • The 1 inch baton can then be notched to cross from joist to joist