When is underfloor heating feasible in a renovation?
| Scenario | Conditions | Indicative cost (150 m²) | Feasibility |
|---|---|---|---|
| Full floor renovation | Break up floor, insulate, pipes, screed, new flooring | €18,000 – €30,000 | High (major works) |
| Dry underfloor heating (no screed) | Dry panel systems (e.g. Knauf, Uponor) | €12,000 – €20,000 | Medium (floor level raised 3–5 cm) |
| Underfloor in new extension | Addition of a new floor or space | €25–46/m² (new area) | Very high (like new build) |
Recommended alternative for renovations: If underfloor heating is not economically viable, the best alternative is aerothermal + fan coils. Fan coils (Daikin, Panasonic, Vaillant, De Dietrich) are installed on walls or in a false ceiling and provide efficient heating and cooling without touching the floor.
Official Installers in Alt Empordà
Dry underfloor heating systems
Dry underfloor heating systems use aluminium sheet panels with grooves for PEX pipes, placed directly on the existing floor without screed. The floor level increase is 3–5 cm.
- Installation time: 2–4 days for a 150 m² home
- No screed curing time required
- Compatible with Daikin, Panasonic, Vaillant and De Dietrich aerothermal systems
Frequently asked questions
How long does a underfloor heating renovation take?
A complete conventional hydronic underfloor heating renovation in a 150 m² home takes between 15 and 30 working days. The dry system can be installed in 2–5 days.