The next step is cleaning the coil, the part with thousands of thin fins through which the refrigerant circulates. We apply a specific descaling product for air conditioning and 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 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. We clean the condensate drain pan and the drain hose 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, with no chemical residues left in the air after rinsing and drying.

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 of asthma. Children and the elderly are particularly susceptible. What you breathe every time the air conditioning is on is air that has passed through the colonised coil. Air conditioning units on the Costa Blanca accumulate dirt significantly faster than in dry inland regions. Three factors combine. Firstly, the average relative humidity in coastal areas is 70-75% for much of the year, which keeps the coil constantly exposed to condensation. Secondly, Saharan dust that arrives each summer leaves a thin but sticky layer that adheres to the fins and traps other contaminants. Thirdly, sea air with suspended particles loaded with salts contributes extra organic matter to the filter. After a deep sanitisation, perceptible effects appear immediately. The unpleasant smell disappears from the first use. The unit recovers between 10% and 25% of its original cooling performance (because the clean coil transfers heat better). Electricity consumption decreases in proportion to the recovered performance. And respiratory symptoms in sensitive individuals clearly reduce or disappear.

2-3 hours per standard indoor unit. For multi-splits, add 1-2 hours per extra unit. We use protective material to avoid stains. The second most common service by volume is electrical maintenance in industrial parks. Replacement of main electrical panels in warehouses, installation of LED lighting in offices and production areas, maintenance of three-phase electrical installations for small and medium machinery. For specific heavy machinery, we coordinate with specialised manufacturer technical support. The typical residential client is a working or middle-class Spanish resident. The typical industrial client is an owner or manager of a small or medium-sized business, with professional judgment to evaluate the technical quality of the work and high demands on deadlines. We adapt our service according to the context.

The price for unit relocation in El Masnou typically ranges between €139 and €1638. The final amount depends on the property's condition, materials, and working time. We always provide a fixed quote before starting. 30-day warranty on the service. If the 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.