Call us, text us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours. The air-to-water heat pump, also called aerothermal, goes a step further. The outdoor unit heats or cools water that circulates through radiators, underfloor heating, or fan coils to air-condition the home, and at the same time heats a domestic hot water tank of approximately 200 litres for showers and taps. It solves everything with a single unit, ideal for chalets and large homes. Its payback compared to a traditional gas + air system is 8 to 12 years in the local climate. A complete aerothermal installation is a serious project. It begins with calculating the thermal loads of the home, sizing the unit according to actual needs, choosing between radiators only, underfloor heating only, or a combination, planning space for the DHW tank and outdoor unit, and a fixed quote.

For a property on the Costa Blanca with existing underfloor heating that has started to fail (cold spots, leaks, circulation noise), diagnosis requires specific tools. A thermal imaging camera to identify non-functioning circuits, an electronic leak detector to locate loss points without lifting the floor. Manometers to check circuit pressures. In most cases, we can diagnose and repair without lifting the entire floor. When building or undertaking a full renovation, the decision about the heating system has one of the biggest impacts on comfort for the next 30-40 years. A decade ago, the automatic answer was radiators with a boiler. Today, water-based underfloor heating combined with aerothermal is what we mostly install in modern new builds on the Costa Blanca, especially in chalets and large homes. The reasons are several and all converge on comfort and efficiency. The Mediterranean climate of the Costa Blanca is perfectly suited to a modern heat pump. Mild winters, with minimum temperatures between 8 and 16 degrees. Hot summers, but not extreme on the coast. Heat pumps extract energy from the outside air even when it's 4-5 degrees. They use this to produce heating in winter, cooling in summer, and domestic hot water. Their efficiency is measured by the COP (Coefficient of Performance), which for a modern heat pump in this climate is between 3.5 and 4.5. This means it produces 3.5 to 4.5 kilowatts of heat for every kilowatt of electricity consumed.

5-7 years from the manufacturer, depending on the brand (Daikin, Mitsubishi, Bosch, Vaillant). Plus our 30-day coverage on labour and recommended annual inspections. Official manufacturer's warranty (5-7 years) plus our labour coverage. For tighter budgets, Ferroli and Baxi are reasonable alternatives, with noticeably inferior quality to premium brands but sufficient for standard domestic use.

The price for aerothermal in Sant Cugat del Vallès typically ranges between €188 and €2240. The final amount depends on the property's condition, materials, and labour time. We always provide a fixed quote before starting. Saunier Duval offers very good value for money, with the ThemaPlus Condens range being a reference for medium-sized apartments and the Renova Condens for larger homes. Call us, text us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.