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 could be more serious underlying causes. Sludge accumulation is the most common. Over the years, the water in the heating circuit generates oxides and mineral residue that settles in the radiators, particularly at the bottom. This sludge narrows the water flow path and creates cold spots. The solution is a chemical flush of the entire circuit using 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. The typical problem arises when you turn on the boiler or underfloor heating after eight months of non-use and it doesn't respond. The pump has seized, the expansion vessel has lost pressure, or the thermostat has become deconfigured. We see this every November.

A very cost-effective improvement is installing thermostatic radiator valves (TRVs) on each radiator. Each room will have its own independent temperature control, allowing you to set different temperatures based on usage (warmer in the living room when occupied, cooler in an unused guest room) and save energy without sacrificing comfort. Installation is straightforward if radiators already have standard valves: we replace the manual head with a thermostatic one. For apartments with a central communal boiler, combining TRVs with individual consumption meters means you only pay for the exact heating consumed by each dwelling, which is much fairer than proportional distribution by floor area used when there are no meters. This is a mandatory upgrade in many communities due to European regulations. 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 (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 off-season. If the valve is stuck, the head is removed, the pin is gently freed with a light 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 precise timing without compromising comfort. Tubular panel steel radiators are a common alternative with 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\\ \\ Replacement, bleeding, and repair of radiators. Underfloor heating\\ \\ Electric and water underfloor heating for renovations. Heating repairs\\ \\ Repair of heating faults on 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 Santa Eulàlia typically ranges from €160 to €165. The final figure depends on the property's condition, materials, and labour time. We always provide a fixed quote before starting. Select the service you need for more details and to request a quote. Call us, message us on WhatsApp, or request your quote online – we'll reply in under 10 minutes during business hours.