If the radiator continues to heat poorly after bleeding, there could be more serious 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, particularly 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 several hours. It's completely drained before refilling with new water treated with a corrosion inhibitor. Call us, message us on WhatsApp, or request a quote online – we'll respond in under 10 minutes during business hours. We will provide a fixed quote before starting the work, with no hidden charges or surprises on your bill.

A very cost-effective upgrade is installing thermostatic radiator valves (TRVs) on each radiator. Each room has its own independent temperature control, allowing different temperatures based on use (e.g., warmer in the living room when occupied, cooler in the guest room when unused) and saving energy without losing comfort. Installation is straightforward when radiators already have standard 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 rust. This is done every 7-10 years or when there are persistent cold spots. The second common cause is a blocked or faulty thermostatic valve. Modern TRVs have an internal pin that can seize after months of disuse (which happens every summer on the Costa Blanca when heating isn't used). To prevent this, it's advisable to move the TRVs to their maximum and minimum settings every couple of months during the low season. If the valve is blocked, the head is removed, the pin is freed with a very gentle tap, or we replace the entire valve.

Low water content aluminium radiators are the most efficient for most modern installations. They heat up and cool down quickly, allowing for fine time programming without compromising comfort. Tubular panel steel radiators are a common alternative with a good price-quality ratio. For bathrooms, we recommend towel rail radiators that combine room heating with towel drying. Boilers\\ \\ Installation and repair of gas and electric boilers. Radiators\\ \\ Replacement, bleeding, and repair of radiators. Underfloor heating\\ \\ Electric and water underfloor heating for renovations. Heating repairs\\ \\ Repair of heating faults for any brand. Heating maintenance\\ \\ Mandatory annual maintenance and certification. Thermostats\\ \\ Programmable and mobile-connected thermostats. Manufacturer's official warranty (5-7 years) plus our labour coverage.

The price for annual maintenance in El Masnou typically ranges between €160 and €4165. The final amount depends on the property's condition, materials, and the time labour involved. We always provide a fixed quote before starting. After an initial assessment, the technician will provide you with a fixed written quote, detailing labour, materials, and VAT. We only begin work once you approve it. The agreed price will not change unless a different fault arises that requires your authorisation. Call us, message us on WhatsApp, or request a quote online – we'll respond in under 10 minutes during business hours.