If the radiator is still not heating properly after bleeding, other more serious causes may be involved. 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 narrows the water passageway and creates cold spots. The solution is a chemical flush of the entire circuit using a specific descaling product, introduced while the boiler is off and circulated for a few hours. The system is 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 provide a fixed quote before starting the work, with no hidden charges or surprises on your bill.

For apartments with a centralised community boiler, combining thermostatic radiator heads with individual consumption meters allows you to pay only for the heating consumed by each dwelling, which is much fairer than the pro-rata distribution by area used when there are no meters. This is a mandatory improvement in many communities due to European regulations. A deep clean of the heating circuit water with a specific descaler to remove sludge and oxides. This is needed 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 (which happens every summer on the Costa Blanca when the heating is off). To prevent this, it's advisable to move the thermostatic heads to their maximum and minimum settings every couple of months during the low season. If the valve is stuck, the head is removed, the pin is gently freed with a light tap, or the entire valve is replaced.

Aluminium radiators with low water content are the most efficient for most modern installations. They heat up and cool down quickly, allowing for fine hourly programming without compromising comfort. Panel tubular 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 hydronic 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. Official manufacturer warranty (5-7 years) plus our coverage on labour.

The price for annual maintenance in Pubilla Cases typically ranges between €160 and €4,165. The final figure depends on the property's condition, materials, and the time required. We always provide a fixed quote before starting. After an initial assessment, the technician will provide you with a written, fixed quote detailing labour, materials, and VAT. We only start work once you approve it. The agreed price will not change unless a different issue 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.