The next step is cleaning the coil, the part with thousands of thin fins through which the refrigerant gas circulates. We apply a specific descaling product for air conditioning, letting it act for 15-20 minutes depending on the level of dirt. We rinse with moderate water pressure, protecting the rest of the unit with plastic to prevent water from getting where it shouldn't. The correct technique requires experience: too much pressure bends the fins and reduces performance, too little doesn't remove the dirt. The condensate tray and drain are cleaned separately with descaling product as they often have limescale buildup. If the drain is partially blocked, we unblock it with a flexible hose. Finally, after drying all components, we apply a certified disinfectant product for air conditioning use that eliminates residual bacteria and fungi without leaving hazardous chemical residues. Yes, we use certified products for domestic air conditioning. Non-toxic, with no chemical residues in the air after rinsing and drying.

After a deep sanitisation, noticeable effects are immediate. Unpleasant odours disappear from the first use. The unit recovers between 10 and 25 percent of its original cooling performance (because the clean coil transfers heat better). Electricity consumption drops proportionally to the performance recovered. And respiratory symptoms in sensitive individuals are clearly reduced or disappear. The most concerning aspect isn't the smell itself, but what it indicates. The volatile compounds produced by these growing microorganisms are respiratory irritants and, in sensitive individuals or those with allergies, can cause headaches, nasal congestion, throat irritation, and worsening asthma. Children and the elderly are particularly sensitive. What you breathe every time the air conditioning is on is the air that has passed through the colonised coil. It's one of the most common problems in domestic air conditioning on the Costa Blanca, and almost no one knows why it happens. When you turn on the air conditioning after winter or after several weeks of disuse, a smell of dampness, mould, or something unpleasant organic emerges and lingers in the room for hours. The cause is biological. The indoor coil of the unit condenses moisture every time it cools. This constant humidity, combined with the 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.

2-3 hours per standard indoor unit. For multi-splits, add 1-2 hours per extra unit. We use protective materials to avoid stains. Manufacturer's official warranty (3-5 years) plus our 30-day labour guarantee. Yes, it is mandatory in Spain for any handling of refrigerant gas. Without it, the manufacturer's warranty is voided and the installation may be declared illegal.

The price for a gas recharge in Les Corts typically ranges between €126 and €1602. The final figure depends on the property's condition, materials used, and working time. We always provide a fixed quote before starting. 30-day service guarantee. If odours return, we repeat the service at no extra cost. Call us, message us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.