Yes, we use certified products for domestic air conditioning. They are non-toxic, leaving no chemical residue in the air after rinsing and drying. Call us, message us on WhatsApp, or request a quote online — we'll respond in under 10 minutes during business hours. The next step is cleaning the coil, the component 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 degree of dirt. We then 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, while too little pressure doesn't remove the dirt effectively.

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 musty, mouldy, or unpleasant organic smell emanates, lingering 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 bacteria and mould colonies to grow. Air conditioners 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 percent for a large part of the year, which keeps the coil constantly exposed to condensation. Secondly, Saharan dust that arrives every summer leaves a thin but sticky layer that adheres to the fins and traps other contaminants. Thirdly, the sea air with suspended particles loaded with salts contributes extra organic material to the filter. After a thorough sanitisation, the perceptible effects appear immediately. The unpleasant odour disappears from the first use. The unit regains between 10 and 25 percent of its original cooling performance (because a clean coil transfers heat better). Electricity consumption decreases in proportion to the recovered performance. And respiratory symptoms in sensitive individuals are clearly reduced or disappear.

2-3 hours per standard indoor unit. For multi-splits, add 1-2 hours per extra unit. We use protective materials to avoid mess. Toshiba, Panasonic, and Fujitsu are a notch below in price but not significantly in quality. They are a good option for tight budgets. More economical brands like basic Samsung, Hisense, or Hitachi function correctly for the first four or five years, but their efficiency and durability are lower and they usually require more maintenance. The second detail is the gas charge. The quantity must be exactly as indicated by the manufacturer for the installed copper length. A gram more or less won't be noticeable immediately, but accumulated over 5 years, it translates to a loss of performance. The charge is always done with a precision electronic scale, not estimated by pressure as some quick installers do.

The price for gas refilling in Montbau typically ranges between €126 and €1602. The final figure depends on the condition of the property, 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 a quote online — we'll respond in under 10 minutes during business hours.