Call us, message us on WhatsApp, or request your quote online – we'll reply in under 10 minutes during business hours. If, after bleeding the radiator, it still heats poorly, there may be more serious potential causes. Sludge accumulation is the first. Over the years, the water in the heating circuit generates oxides and mineral deposits that settle in the radiators, especially at the bottom. This sludge reduces the effective water flow area and creates cold spots. The solution is a chemical flush of the entire circuit with a specific descaling product, introduced with the boiler off and circulated for a few hours. It is completely drained before refilling with new water treated with a corrosion inhibitor. Call us, message us on WhatsApp, or request your quote online – we'll reply in under 10 minutes during business hours.

A very cost-effective improvement is installing thermostatic radiator valves on each radiator. Each room will have its own independent temperature control, allowing different temperatures based on use (e.g., warmer in the living room when occupied, colder in an unused guest room) and saving energy without losing comfort. Installation is simple if the radiators already have conventional valves: we replace the manual head with a thermostatic one. Deep cleaning of the heating circuit water with a specific descaler to remove sludge and oxides. This is done every 7-10 years or when persistent cold spots occur. The second common cause is a blocked or faulty thermostat valve. Modern valves with thermostatic heads have an internal pin that can seize after months of disuse (as happens every summer in the Costa Blanca area when heating is not used). To prevent this, it's advisable to move the thermostatic valves to their maximum and minimum settings every couple of months during the off-season. If the valve is stuck, the head is removed, the pin is freed with a very gentle tap, or the entire valve is replaced.

Low-water content aluminium radiators are the most efficient for most modern installations. They heat up and cool down quickly, allowing fine hourly programming without compromising comfort. Panel tubular steel radiators are a common alternative offering good value for money. For bathrooms, we recommend towel rail radiators that combine room heating with towel drying. Boilers\\ \\ Installation and repair of gas and electric boilers. Radiators\\ \\ Radiator replacement, bleeding, and repair. Underfloor heating\\ \\ Electric and water underfloor heating for renovations. Heating repairs\\ \\ Repair of heating breakdowns for any brand. Heating maintenance\\ \\ Mandatory annual maintenance and certification. Thermostats\\ \\ Programmable and mobile-connected thermostats. 5-7 years official manufacturer warranty depending on the brand (Daikin, Mitsubishi, Bosch, Vaillant). Plus our 30-day coverage on labour and recommended annual inspections.

The cost of annual maintenance in La Sagrera typically ranges from €160 to €4165. The final figure depends on the property's condition, materials, and working time. We always provide a fixed quote before starting. Select the service you need for more details and to request a quote. We provide a fixed quote before starting the work, with no hidden charges or surprises on your bill.