Call us, message us on WhatsApp, or request a quote online — we'll reply in under 10 minutes during business hours. Call us, message us on WhatsApp, or request a quote online — we'll reply in under 10 minutes during business hours. 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 flue gas evacuation system with forced draught, horizontal or vertical according to your community's regulations. And an automatic air vent at the highest point of the circuit. We will configure parameters according to the installation type (radiators, underfloor heating, or both) and adjust the heating curve to the local climate.

Aerothermal systems are the most energy-efficient option but require a higher initial investment and space for the outdoor unit. For full renovations with new underfloor heating, aerothermal systems are clearly worthwhile. For replacing an existing boiler that is still working well with installed radiators, switching to aerothermal makes sense but only when the natural time comes to replace the boiler, not before. When it's time to change 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, connecting pipes, and obsolete accessories. We clean the area and check the electrical panel's condition to confirm it has sufficient capacity for the new boiler (modern modulating boilers consume very little but require a specific connection). 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 underfloor heating combined with aerothermal systems is what we mostly install in modern new constructions on the Costa Blanca, especially in chalets and large homes. The reasons are varied and all converge on comfort and efficiency.

Official manufacturer's warranty (3-5 years) plus our labour coverage. The most common repairs include several. Replacement of electrothermal collector heads that have failed and block a complete circuit, replacement of the circulation pump when it no longer provides sufficient flow, circuit balancing when there are thermal imbalances between zones. Complete bleeding when there is air in the system. Leaks in embedded pipes are the most serious but also infrequent issues. Quality multilayer piping is guaranteed for 50 years. Junkers (Bosch) is a good alternative with similar quality and slightly more competitive prices. The Cerapur Excellence Compact range is robust and efficient.

The price for gas boilers in La Nova Esquerra de l'Eixample typically ranges between €196 and €2660. The final figure depends on the property's condition, materials, and work time. We always provide a fixed quote before starting. Many of these houses have installations from the 70s or earlier that require a complete upgrade. We offer a free initial diagnosis and a detailed itemised quote. Saunier Duval offers very good value for money, with the ThemaPlus Condens range as a reference for medium-sized apartments and the Renova Condens for larger homes.