Window AC maintenance — yes, we still do it properly
Thousands of window units are still cooling Qatar's villas, majlis rooms, shops and staff housing. We keep them running cold, quiet and safe.
The units everyone else has stopped servicing
Most AC companies in Doha quietly turned their backs on window units years ago — there's more money in splits. We didn't, for a simple reason: a huge amount of Qatar still runs on them. Older villas, extensions, garages, portacabins, shops and labour accommodation all lean on window ACs, and a well-kept unit will happily run for fifteen years.
The catch is that everything lives in one box. Compressor, both coils, fan motor and thermostat sit centimetres apart, so dust and salt air get at all of it at once. When a window unit loses its cooling, the whole chassis usually needs opening up — which is exactly what our service does.
What a window AC service includes
- Front grille and filter washed or replaced
- Evaporator and condenser coils chemically cleaned
- Fan blades and motor cleaned, bearings oiled
- Drain tray cleared and flushed
- Thermostat and selector switch tested
- Gas pressure and compressor amps checked
- Mounting, seals and sleeve inspected — no rattles, no hot air leaking in
- Full chassis pull-out and wash available on request
Takes about 40–50 minutes per unit in place, or a bit longer if we pull the chassis for a workshop-grade wash.
Window AC problems we see every week
Blowing air, not cooling
Almost always a condenser coil packed with dust. The compressor can't reject heat, so it cycles off. A chemical wash brings the cold back.
Rattling and vibration
Loose mounting frames, tired rubber grommets or a bent fan blade. Small parts, big difference to your sleep.
Tripping the breaker
Old window units draw hard on start-up. A weak capacitor or corroded wiring makes it worse — both are quick, inexpensive fixes.
Water dripping inside the room
The unit should tilt slightly outward so condensate drains away. Blocked trays and wrong tilt are five-minute corrections.
Musty smell on start-up
Mould in the coil and drain tray. We clean and sanitise the airway so the first blast of air doesn't smell like a wet carpet.
Weak airflow
Clogged filter, dirty blower, or a fan motor running slow. We check all three rather than guessing.
Window vs split: should you switch?
We get asked this on most window AC visits, so here's the honest comparison:
| Keep the window unit | Upgrade to a split | |
|---|---|---|
| Upfront cost | Nothing — service costs a fraction of replacement | Unit + installation + wall works |
| Running cost | Higher per hour of cooling | Inverter splits use noticeably less power |
| Noise | Compressor is in the room with you | Compressor sits outside — much quieter |
| Lifespan | 15+ years if serviced | 10–15 years if serviced |
| Makes sense when | Unit is healthy, room is occasional-use, rental property | Daily-use bedrooms and living rooms, high summer bills |
If a switch does make sense, we install splits too — but we'll never push a replacement when a service will do. Ask us during the visit and you'll get a straight answer either way.
Window AC questions
Is it worth servicing an old window AC, or should I just replace it?
If the compressor is healthy, a deep service usually restores most of the original cooling for a fraction of the cost of a new unit. We test the compressor first — and if the unit isn't worth spending money on, we'll say so before you spend it.
Can you take the unit out for a proper wash?
Yes. For heavily soiled units we pull the full chassis out of its sleeve, wash it properly outside, then refit and reseal it in the same visit.
Do window ACs need gas top-ups?
Only if there's a leak — gas isn't consumed. Window units are factory-sealed, so they actually leak less than splits. Weak cooling is far more often a dirty coil than low gas.
Do you service window ACs in staff accommodation and portacabins?
Yes, regularly — including bulk servicing for multiple units in one visit, which brings the per-unit price down. Ask about it on WhatsApp.
Give that window unit another good summer
One unit or twenty — send us a message and we'll come back with a per-unit price and the next available slot.