Daikin, Mitsubishi Electric, LG, Toshiba, Hitachi, Panasonic. For rooftop units: Carrier, York, Lennox. Selection based on power, budget, and availability. 1x1 Splits, 2x1 and 3x1 multi-splits, legal installation with F-Gas certification. Preliminary diagnosis and functional testing. Call us, message us on WhatsApp, or request your quote online — we'll reply in under 10 minutes during business hours.

After connecting the copper pipes between the indoor and outdoor units, a deep vacuum must be created in the refrigeration circuit to remove air and moisture before charging the gas. Without a vacuum, residual air mixed with the refrigerant gas reduces the unit's efficiency by 20-30 percent, overheats the compressor, and drastically shortens its lifespan. The correct vacuum is achieved with a specific pump that lowers the pressure to -700 millibars and is maintained for 30 minutes to check for leaks. 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 energy than older fixed-speed air conditioners to produce the same cooling. Their outdoor noise levels are clearly lower, which is important in shared courtyards where neighbours might complain. Their filters are of better quality and last longer between cleanings. When an air conditioner stops cooling as effectively as before, there can be several causes that may appear similar at first glance. The difference lies in the speed and manner of the failure. If the unit has gradually lost efficiency over months, a slow gas leak is most likely, which has reduced the available amount in the circuit to the point of poor performance. If the unit was cooling normally and suddenly stopped cooling overnight, it's usually a large leak, compressor failure, or a problem with the electronic board. If it starts but stops after a few minutes with an error message on the remote, it could be a thermostat, temperature sensor, or communication issue between units.

Official manufacturer's warranty (3-5 years) plus our 30-day labour coverage. 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 models function correctly for the first four or five years, but their efficiency and durability are lower, and they often 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 results in 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 a gas recharge in Centre (Sabadell) typically ranges between €126 and €1602. The final amount depends on the property's condition, materials, and working time. 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, checking the facade, and assessing the electrical panel, we cannot provide an honest quote. Free, no-obligation visit.