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Best Underfloor Heating Systems for Renovations / Retrofit

Our Fastwarm low-profile solutions keep floor build up to a minimum without the need for excavation, and combine premium energy efficiency with optimal heat output.

Why install Fastwarm underfloor heating during a renovation

The Fastwarm overlay and low-profile solutions make it simple to install underfloor heating over the existing floor, so there is no need for costly excavations. Our systems also preserve ceiling height by minimising floor build-up, leaving you with a room which is both warm and spacious.

Available for single rooms or as a fully designed system
Install directly onto existing floor
Minimal floor height increase
Optimum performance – high heat outputs and quick response times

Get Expert Advice

We decided to go with the FastTile+ system from Fastwarm as we could tile directly to it. We were on a tight budget, and this helped to keep within our project costs.

David Hargreaves, Devon

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Underfloor Heating during a renovation FAQ's

Can you install underfloor heating on top of tiles?

Yes, providing the tiles are structurally sound an overlay system can usually be laid on top of them. We recommend checking with a qualified person on site as this can vary on a case-by-case basis.

Can you install underfloor heating in an existing house?

Yes, Fastwarm have an extensive range of retrofit underfloor heating options specifically designed for renovation projects.

Can you install underfloor heating on a concrete floor?

Yes, Fastwarm’s overlay systems are designed to be installed directly over various floor types, including concrete.

Can you install underfloor heating on wooden floorboards?

Yes, providing they are structurally sound and level. We would always recommend that any suspended ground floors with an air void below should be insulated to reduce downward heat loss.

Does underfloor heating raise floor level?

Fastwarm offer a range of products - such as between joist and screed systems - which don’t add any height to the floor level. We also have a variety of systems offering minimal height build up on top of the floor, as low as 15mm.

Can underfloor heating be retrofitted?

Yes, Fastwarm have a dedicated range of retrofit underfloor systems which are ideal for renovation projects.

Knowledge Hub

There are a wide range of benefits to installing UFH in your home. From energy efficiency to a luxury feel, we take a look at the biggest advantages of underfloor heating.