We clean indoor air conditioning units in homes, apartments, villas, offices and commercial spaces across the central Algarve. It is our core service and it is all we do — we are not an installation company that also cleans.
From €35 per unit + VAT, with a quantity discount and a 15-day guarantee.
How a job works
1. We protect the space
Before opening anything, we cover the floor, the wall below the unit and the furniture around it. We set up a collection system around the unit, because the cleaning is done with water and nothing can run off.
2. We open the unit
We remove the casing. On models with electrical components built into the cover, such as several LG Dual Inverter units, we switch off and isolate first. It takes longer and there is no shortcut.
3. We wash the filters
Water and a neutral product, on both sides, then left to dry while we work on the rest.
4. We wash the heat exchanger
Fin by fin, with enough pressure to carry the dirt away and low enough not to bend the aluminium. It is the component that most affects airflow and consumption.
5. We remove and wash the fan barrel
The cylinder that pushes the air. It builds up a crust on the blades that reduces airflow and smells. It is the most laborious part and the first one skipped by anyone in a hurry.
6. We clean the drain tray and drainage
Where standing water collects. We clear the drain pipe, which is almost always the forgotten cause of units that drip.
7. We sanitise
A product made specifically for air conditioning equipment, which kills mould and bacteria without attacking the components.
8. We reassemble and test
We switch the unit on and check airflow, temperature and drainage. We never leave a unit untested.
9. We leave the space as we found it
We remove the protection and clean up whatever is needed. If the room is not the same or better than we found it, the job is not finished.
What we clean
| Equipment | Price per unit |
|---|---|
| Wall-mounted unit (split) | from €35 + VAT |
| Ceiling ducted unit or false ceiling | from €40 + VAT |
| Multi-split, per indoor unit | from €35 + VAT |
From the fourth unit onwards the price goes down. For more than 20 units, we prepare a dedicated quote.
Deep cleaning
Some units do not need a routine clean. They need to be opened up and washed completely, because they never have been.
That is the service on this page: full disassembly, removal of biofilm, mould and bacteria, and restoration of the original airflow. From €60 per unit + VAT, €50 + VAT from the fourth.
When you need a deep clean and not a standard one
The difference is not commercial, it is technical. A standard clean maintains a unit that is already in good condition. A deep clean restores one that is not.
You need a deep clean if:
- The unit smells musty when switched on
- It has never been opened since installation
- It has gone more than three or four years without attention
- Water drips from the unit
- The airflow is visibly weaker
- There are dark stains visible on the fins or the grille
- It was in a closed house for several months in a row
- There has been building work in the property since the last clean
If none of these apply and the unit is cleaned every year, a standard clean is enough.
What biofilm is, and why nothing else removes it
The air entering the unit carries dust, pollen, fabric fibres and grease. This material settles on the heat exchanger fins and the fan barrel blades — surfaces that are permanently damp during use, in total darkness and at a mild temperature.
In those conditions, the dust does not stay loose. It binds into a dark, sticky layer where fungi such as Aspergillus, Penicillium and Cladosporium thrive. That is biofilm.
It does not come off with running water, with a spray or with a vacuum cleaner. It only comes off mechanically: by opening the unit, removing the fan barrel and washing every surface with pressure and a suitable product.
What it restores
Airflow. It is the most immediate difference and the one that surprises people most. A blocked heat exchanger chokes the air passing through.
Cooling capacity. An experimental study on split units measured a 19% drop in cooling capacity with around 30% of the heat exchanger surface blocked. In practice, a 12,000 BTU unit in that condition behaves like one of just over 9,700 BTU.
Consumption. The same research recorded a rise of more than 6% in electricity consumption and a 13.5% drop in energy efficiency. Research on build-up in residential heat exchangers shows that a 5 to 10% loss of airflow is enough for efficiency to fall by 2 to 4%.
The smell. It disappears the same day, because the source is removed rather than masked.
What is included
Protection of the work area · Washing of the filters · Washing of the heat exchanger fin by fin · Full removal and washing of the fan barrel · Cleaning of the drain tray · Clearing of the drainage · Sanitisation · Final functional test
15-day guarantee: if the unit has a problem after our work, we come back.
Brands
Daikin, Mitsubishi, LG, Samsung, Fujitsu and Midea, among others. We always ask for the make and model before booking, because the dismantling process changes and that decides how much time we need.
Where we work
Almancil, Quinta do Lago, Vale do Lobo, Vilamoura, Quarteira, Loulé, Albufeira, Faro and Olhão. Based in Loulé.
