We clean the condensate tray and drain separately with a descaling product as they often 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. The next step is cleaning the coil, the part with thousands of thin fins where the refrigerant circulates. We apply a specific descaling product for air conditioning systems, let it act for 15-20 minutes depending on the dirt level. 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 performance, too little doesn't remove the dirt. Yes, we use certified products for domestic air conditioning. They are non-toxic, leaving no chemical residues in the air after rinsing and drying.

Air conditioners on the Costa Blanca accumulate dirt significantly faster than in dry inland regions. Three factors combine. First, the average relative humidity in coastal areas is 70-75 percent for much of the year, which keeps the coil constantly exposed to condensation. Second, Saharan dust that arrives each summer leaves a thin but sticky layer that adheres to the fins and traps other pollutants. Third, sea air with suspended particles laden with salts adds extra organic material to the filter. 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, for sensitive individuals or those with allergies, can cause headaches, nasal congestion, throat irritation, and worsen asthma. Children and the elderly are particularly susceptible. What you breathe every time the air conditioning is on is the air passed through the colonised coil. This is 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 damp, mouldy, or unpleasant organic smell is released and 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 colonies of bacteria and fungi 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 mess. Yes, it is mandatory in Spain for any handling of refrigerant gas. Without it, the manufacturer's warranty is void, and the installation may be declared illegal. Toshiba, Panasonic, and Fujitsu are a step 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 to five years, but their efficiency and durability are lower, and they tend to require more maintenance.

The price for a heat pump installation in Cervelló typically ranges from €160 to €1,440 as a guideline. The final cost depends on the property's condition, materials used, and time required. We finalise the price after reviewing photos or—if you prefer—after an on-site inspection, with no obligation. 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.