Alicante province
Air Conditioning & Aerotermia in Alicante — Efficient Comfort All Year
We install air conditioning and aerotermia (air-source heat pumps) across Alicante so your home stays comfortable all year on minimal energy: multi-split units, ducted systems and heat pumps that cool in summer and heat in winter. In-house team, a 2-year guarantee and Costa Blanca coverage.
Free quote
Same-day response. No obligation.

- Area
- Alicante & province
- Quote
- On request, no obligation
- Guarantee
- 2 years
- Timescale
- Single split installation: 1 day.
In the hot Costa Blanca climate cooling is not a luxury: with long summers and many months of heat, a good air-conditioning system transforms comfort and your bills. We fit everything from a single split for one room to full multi-split solutions and ducted systems that condition the whole property evenly and out of sight.
Aerotermia goes a step further: an air-source heat pump draws energy from the outside air to provide heating, cooling and domestic hot water at a fraction of the running cost of traditional systems. For owners renovating a property it is the most efficient choice — winter heat, summer cooling and hot water from a single unit. Heat pumps also commonly qualify for energy-efficiency grants and subsidies.
We assess the orientation, insulation and use of each room to size the equipment correctly — never undersized or oversized. We handle the mounting, refrigerant lines, condensate drainage and electrical connection, and hand the system over tested and balanced. For overseas owners we can coordinate the whole install remotely with photo reports.
Air Conditioning & Aerotermia in Alicante: what's included
Multi-split air conditioning
One outdoor unit feeding several indoor splits to condition bedrooms and living areas from a single system.
Ducted systems
Concealed conditioning in the false ceiling that distributes heating and cooling evenly throughout the home.
Aerotermia for heating, cooling and hot water
A high-efficiency heat pump delivering heating, cooling and domestic hot water at very low running cost.
Replacing old units
Swapping obsolete machines for quiet, low-consumption inverter equipment.
Correct sizing for efficiency
Capacity calculated from orientation, insulation and use so no energy is wasted.
Grants and subsidies guidance
We point you to the energy-efficiency grants and subsidies available for aerotermia installations.
The full scope of Air Conditioning & Aerotermia works
Every job we take on within this service, with the detail of how we carry it out. The price is always fixed after the survey.
Air conditioning
Single split for one room
- What we do
- An individual unit for a living room or bedroom, with its outdoor unit.
- How we do it
- We position the indoor unit so it does not blow straight onto the bed or sofa, and mount the outdoor unit on anti-vibration brackets clear of the neighbour’s facade so vibration is not transmitted.
Multi-split for the whole home
- What we do
- Several indoor units run from a single outdoor unit.
- How we do it
- We consolidate onto one correctly sized outdoor unit so the terrace is not cluttered and the community’s facade rules are respected. Each indoor unit is controlled separately, so empty bedrooms are not costing you anything.
Ducted system
- What we do
- Conditioning concealed in the false ceiling, distributed through grilles.
- How we do it
- We calculate duct sizes and fit insulated ducting with dampers per zone, leaving an access panel at the filter. Without it, servicing means opening the ceiling.
Replacing an old unit
- What we do
- Obsolete machines swapped for low-consumption inverter equipment.
- How we do it
- We check whether the existing refrigerant line can be reused with the new gas; where it cannot, we replace it rather than push it — that shortcut is behind most of the gas leaks that appear later.
Cassette and ducted for premises
- What we do
- Conditioning for offices, shops and holiday apartments.
- How we do it
- We distribute capacity by occupancy and shop-front glazing, and leave the control centralised or range-limited where the property is let out.
Aerotermia (heat pumps)
Heating, cooling and hot water
- What we do
- A heat pump covering conditioning and domestic hot water from one unit.
- How we do it
- We size it on the property’s actual demand rather than floor area, and set the operating curve so the unit modulates instead of cycling on and off — the cycling is what drives consumption up.
Replacing electric heating
- What we do
- Old electric radiators or a boiler swapped for a heat pump.
- How we do it
- We check the existing emitters can run at low temperature; if not we propose underfloor heating or fan coils, because a heat pump forced to run hot loses almost all of its advantage.
Underfloor heating and cooling
- What we do
- Water underfloor heating paired with the heat pump.
- How we do it
- We run a circuit per room with its own manifold and thermostat, and control the dew point in cooling mode so condensation never forms on the floor.
Hot water cylinder
- What we do
- An integrated or separate hot-water cylinder.
- How we do it
- We size it to the number of outlets and programme the anti-legionella cycle, leaving the backup immersion as a backup only.
Guidance on grants
- What we do
- Information on the energy-efficiency grants currently open.
- How we do it
- We tell you which scheme you may qualify for and prepare the technical documentation for the installation that they normally ask for. Filing depends on the scheme and the authority, and we are upfront about that.
Installation work
Refrigerant lines
- What we do
- The copper pipework run between the outdoor and indoor units.
- How we do it
- We flare, insulate and pull a vacuum with a pump before releasing the gas. Skipping the vacuum is what leaves moisture in the circuit and kills the compressor a few years later.
Condensate drainage
- What we do
- Removing the water the unit produces while cooling.
- How we do it
- We give a continuous fall to a trapped drain; where there is no fall we fit a condensate pump. This is the single most common cause of damp patches in a false ceiling.
Electrical connection
- What we do
- A dedicated line and protection for the climate system.
- How we do it
- We run an independent circuit from the board with its own breaker, so the air conditioning does not share a line with the sockets and cause tripping.
Coastal brackets and fixings
- What we do
- Mounting the outdoor unit in a marine environment.
- How we do it
- We use galvanised or stainless brackets: on the front line a painted bracket rusts within a couple of seasons and eventually compromises the fixing itself.
Installing in a community building
- What we do
- Installations subject to facade or courtyard rules.
- How we do it
- We check upfront what the community allows on the position and appearance of the outdoor unit, and propose a concealed or roof-mounted alternative where the facade will not take the machine.
Servicing and faults
Unit not cooling
- What we do
- Diagnosis of lost performance or no cold air.
- How we do it
- We measure pressures and temperatures to tell a dirty filter from a failed sensor or a gas leak, rather than just topping it up: re-gassing over a leak wastes both your money and the refrigerant.
Refrigerant leak
- What we do
- Tracing and repairing losses in the circuit.
- How we do it
- We search with a detector and pressurised nitrogen, repair the joint and recharge with the exact charge the manufacturer specifies rather than by estimate.
Annual clean and service
- What we do
- Preventive servicing of filters, coils and drainage.
- How we do it
- We clean the coil and tray and check the drain before the hot season. On the coast, salt clogs the outdoor coil and performance falls away gradually enough that you never notice it happening.
Noise and vibration
- What we do
- Fixing humming or vibration carried into the property.
- How we do it
- We check the mounts, anti-vibration pads and the refrigerant line clips: it is nearly always the pipe touching the structure and carrying compressor vibration into the building.
Preparing a closed-up property
- What we do
- Checking the system in homes used only part of the year.
- How we do it
- We leave the unit clean with the drain clear before you close up, and test it before you arrive — useful if you manage the property from abroad.
Air Conditioning & Aerotermia in Alicante step by step: how we work
- 1
Site visit
We assess rooms, orientation and insulation to size the equipment with no obligation.
- 2
Fixed-price quote
We propose the most efficient solution with equipment, capacities and timescale fixed.
- 3
Installation
We fit the units, refrigerant lines, drainage and electrical connection.
- 4
Handover with guarantee
We test and balance the system and hand over with a 2-year guarantee.
Timescales for Air Conditioning & Aerotermia in Alicante
- Single split installation: 1 day.
- Multi-split for a whole home: 2–4 days.
- Ducted system or aerotermia: 3–6 days.
Pricing your Air Conditioning & Aerotermia in Alicante: how we quote
Every project is unique: the price fits your job.
We do not use one-size-fits-all price lists. After a free, no-obligation site visit we prepare a detailed personalised quote, with a fixed price agreed before we start.
Air Conditioning & Aerotermia in Alicante: before & after


Aerotermia in a full renovation
Santa Pola
Electric heating replaced with an aerotermia system for heating, cooling and hot water, sharply cutting the home running costs.


Multi-split throughout the flat
Alicante — San Juan beach
Inverter multi-split fitted to the living room and three bedrooms from a single discreet outdoor unit.
Air Conditioning & Aerotermia: customer reviews in Alicante
“Professional approach to renovation and construction services. The communication is clear, the team pays attention to details, and the overall presentation gives a good impression of reliability and quality.”
“A very good professional service with a strong focus on the customer. Communication was clear and all questions were handled quickly. Overall, I had a very positive experience and would be happy to recommend Renixo.”
“Дякую за прекрасну роботу та виконання мого замовлення.”
Air Conditioning & Aerotermia: frequently asked questions in Alicante
How much does it cost to install air conditioning or aerotermia?
It depends on the number of rooms to condition, the type of system (split, ducted or heat pump), the capacity needed and the difficulty of the mounting and pipe runs. Every home is different, so we fix the price after the survey. Request a free, no-obligation personalised quote.
What is aerotermia and why is it more efficient?
Aerotermia is an air-source heat pump that extracts energy from the outdoor air to heat, cool and produce hot water. A single unit gives you all three while consuming far less than traditional systems, cutting bills and emissions. It is ideal for the Costa Blanca climate and year-round use.
Are there grants for installing a heat pump?
Usually yes. Because aerotermia is renewable and highly efficient, it commonly qualifies for energy-efficiency grants and subsidies. Terms change with each funding round, so at the visit we point you to the schemes you may be able to use for your particular installation.
Multi-split or ducted — which is better?
Multi-split is simpler and cheaper to install and lets you control each room separately. Ducted systems give more even, discreet conditioning with no visible indoor units, but need a false ceiling. At the visit we recommend whichever suits your property and how you use it best.
Do you provide a guarantee and servicing?
Yes. The installation carries a 2-year guarantee on the workmanship, plus the manufacturers guarantee on the equipment. We explain the basic servicing (filter cleaning and gas checks) that keeps the system efficient and extends the life of the units.
Air Conditioning & Aerotermia in Alicante town by town
Air Conditioning & Aerotermia: the areas we cover
Services related to Air Conditioning & Aerotermia
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