What to consider when installing underfloor heating in an existing home.
Underfloor heating is increasingly popular in renovation projects because of the comfort and efficiency it offers. However, fitting it into an existing home comes with different challenges compared to new builds. The right system depends on your floor construction, how much disruption you can accept, and your budget.
The type of floor you have makes a big difference. Solid concrete floors are generally easier to work with than suspended timber floors. Understanding your floor construction is one of the first steps in choosing the right system.
One of the biggest challenges in renovations is managing floor height. Adding underfloor heating can raise floor levels, which may affect doors, skirting boards, and transitions between rooms. Low-profile overlay systems are often preferred in these situations.
Some systems require lifting floorboards or removing existing flooring, while others can be installed with minimal disruption. If you’re living in the property during the works, this becomes an important factor.
Good insulation is essential for underfloor heating to perform well. In renovations, adding insulation where possible (especially below the heating pipes) can significantly improve efficiency and running costs.
These are laid directly on top of an existing solid floor. They have a low build-up height and cause relatively little disruption, making them one of the most popular choices for renovations.
Modern low-profile systems are designed specifically for renovations. They offer good performance while keeping the overall floor height increase to a minimum.
Used in suspended timber floors where floorboards can be lifted. These systems sit between the joists and are a good option when access from below or above is available.
Use our Underfloor Heating Calculator to get recommendations based on your floor type and project.