We install the new boiler with updated accessories. A correctly sized expansion vessel. A new safety valve. A gas hose with an accessible shut-off valve. A smoke evacuation system with forced draught, horizontal or vertical as per your community's regulations. And an automatic air vent at the highest point of the circuit. We configure parameters according to the installation type (radiators, underfloor heating, or both) and adjust the heating curve to the local climate. Call us, text us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours. Call us, text us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.

When it's time to replace an old boiler, the complete process typically takes one day. We start by shutting off the gas and draining the heating circuit. We dismantle the old boiler, connection pipes, and obsolete accessories. We clean the space and check the electrical panel's condition to confirm it has the capacity for the new boiler (modern modulating boilers consume very little but require a specific connection). Aerothermal energy is the most energy-efficient option but requires a higher initial investment and space for the outdoor unit. For complete renovations with new underfloor heating, aerothermal energy clearly pays off. For replacing an existing boiler that still works well with installed radiators, switching to aerothermal makes sense but only when the natural time comes to renew the boiler, not before. For a property on the Costa Blanca with existing underfloor heating that has started to fail (cold spots, leaks, circulation noise), diagnostics require specific tools. Thermal imaging camera to identify malfunctioning circuits, electronic leak detector to locate loss points without breaking the floor. Pressure gauges to check circuit pressures. In most cases, we can diagnose and repair without lifting the entire floor.

Junkers (Bosch) is a second-tier option with similar quality and slightly more competitive prices. The Cerapur Excellence Compact range is robust and efficient. Saunier Duval offers very good value for money, with the ThemaPlus Condens range as a benchmark for medium-sized apartments and the Renova Condens for larger homes. Official manufacturer's warranty (3-5 years) plus our coverage on labour.

The price for aerothermal systems in La Vila de Gràcia typically ranges between €188 and €2240. The final figure depends on the property's condition, materials, and labour time. We always provide a fixed quote before starting. Call us, text us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours. A complete aerothermal installation is a serious project. It begins with calculating the property's thermal loads, sizing the equipment according to actual needs, choosing between radiators only, underfloor heating only, or a combination, planning space for the DHW tank and outdoor unit, and providing a fixed quote.