The next step is cleaning the coil, the component with thousands of thin fins where 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 moderately pressured water, protecting the rest of the unit with plastic 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 with 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. Yes, we use certified products for domestic air conditioning. They are non-toxic, leaving no chemical residues in the air after rinsing and drying.

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 conditioner after winter or after several weeks of disuse, a musty, mouldy, or unpleasant organic smell emerges 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 moisture, 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. After a deep sanitisation, the noticeable effects appear immediately. The unpleasant smell disappears from the first use. The unit recovers between 10 and 25 percent of its original cooling efficiency (because a clean coil transfers heat better). Electricity consumption decreases proportionally to the recovered performance. And respiratory symptoms in sensitive individuals are significantly reduced or disappear. 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, keeping the coil constantly exposed to condensation. Second, Sahara dust that arrives each summer leaves a thin but sticky layer that adheres to the fins and traps other contaminants. Third, sea air with suspended particles loaded with salts contributes extra organic material to the filter.

2-3 hours per standard indoor unit. For multi-split systems, add 1-2 hours per extra unit. We use protective materials to avoid mess. 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 or five years, but their efficiency and durability are lower, and they tend to require more maintenance. Mitsubishi Electric, Daikin, and LG are the three premium brands we install most often. Their inverter technology is very mature, and they consume 40 percent less electricity than old fixed-speed air conditioners to produce the same cooling. Their outdoor noise level is 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 La Clota typically ranges between €160 and €1440. The final amount depends on the property's condition, materials used, and the time required. We always provide a fixed quote before starting. Call us, message us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours. Without measuring the copper piping, inspecting the facade, and evaluating the electrical panel, we cannot provide an honest quote. The visit is free and without obligation.