Yes, we use certified products for domestic air conditioning. They are non-toxic, leaving no chemical residues in the air after rinsing and drying. The next step is cleaning the coil, the component with thousands of thin fins through which the refrigerant circulates. We apply a specific descaling product for air conditioning systems and let it sit for 15-20 minutes depending on the level of dirt. We rinse with moderate water pressure, protecting the rest of the unit with plastic sheeting to prevent water from entering unintended areas. The correct technique requires experience: too much pressure bends the fins and reduces efficiency, too little doesn't remove the dirt. We clean the condensate tray and drain separately using descaling product, as they tend to accumulate limescale. If the drain is partially blocked, we clear it with a flexible hose. Finally, after drying all components, we apply a certified disinfectant product for air conditioning use, which eliminates residual bacteria and fungi without leaving hazardous chemical residues.

It's one of the most common problems with domestic air conditioning on the Costa Blanca, and hardly anyone knows why it happens. When you turn on the air conditioner after winter or after several weeks of disuse, a damp, mouldy, or unpleasant organic smell emerges that lingers in the room for hours. The cause is biological. The internal coil of the air conditioner condenses moisture every time the unit cools. This constant humidity, combined with organic dust entering through the filters and the moderate indoor temperature when the unit is off, creates the perfect environment for bacterial and fungal colonies to grow. Air conditioning units on the Costa Blanca accumulate dirt significantly faster than in dry inland regions. Three factors contribute. Firstly, the average relative humidity in coastal areas is 70-75% for a large part of the year, keeping the coil constantly exposed to condensation. Secondly, Saharan dust arriving each summer leaves a thin but sticky layer that adheres to the fins and traps other contaminants. Thirdly, sea air with suspended particles charged with salts adds extra organic material to the filter. After a deep sanitisation, the noticeable effects are immediate. The unpleasant odour disappears from the first use. The unit recovers between 10% and 25% of its original cooling performance (as a clean coil transfers heat more effectively). Electricity consumption decreases proportionally to the recovered performance. And respiratory symptoms in sensitive individuals are clearly reduced or disappear.

2-3 hours per standard indoor unit. For multi-split systems, add 1-2 hours per extra unit. We use protective materials to avoid stains. Toshiba, Panasonic, and Fujitsu are a tier below in price but not significantly in quality. They are a good option for tighter budgets. More economical brands like Samsung, Hisense, or basic Hitachi function correctly for the first four or five years, but their efficiency and durability are lower, and they typically require more maintenance. Mitsubishi Electric, Daikin, and LG are the three premium brands we install most often. Their inverter technology is highly mature, and they consume 40 percent less energy than old fixed-speed air conditioners to produce the same cooling output. Their outdoor noise levels are noticeably lower, which is important in communal courtyards where neighbours might complain. Their filters are of better quality and last longer between cleanings.

The price for a heat pump in Les Fonts typically ranges between €160 and €1440. The final amount depends on the property's condition, materials, and estimated work time. We always provide a final, fixed quote before starting. Without measuring the copper piping, checking the facade, and assessing the electrical panel, we cannot give an honest quote. Visits are free and without obligation. Call us, message us on WhatsApp, or request your quote online – we'll reply in under 10 minutes during business hours.