How often should air conditioning be serviced?
For most homes, once a year. For commercial or heavily used systems, twice a year. Filters need attention more often than either.
The short answer
Manufacturers generally recommend a professional service once a year for domestic systems. Commercial systems, or any system in near-continuous use, are normally serviced every six months. The right time for a domestic system is spring, before it is needed.
What changes the frequency
- Hours of use. A system running all day collects dust faster.
- Environment. Kitchens, salons, pets, dusty workshops and coastal air clog filters and coils sooner.
- System size. Larger refrigerant charges bring legal leak-check requirements; see F-Gas regulations.
- Warranty. Many warranties require regular servicing.
- Use of the property. Holiday lets and hospitality benefit from a service before each season.
Between services
Washable filters should be checked and cleaned every few weeks in use. Check the outdoor unit is clear of leaves and debris, and that condensate is draining. Anything beyond that — refrigerant, electrical, internal coils — needs an engineer. See air conditioning servicing.
Common questions.
How often should air conditioning be serviced?
Once a year for most homes; every six months for commercial and heavily used systems. Clean filters more often.
What happens if I never service it?
Efficiency falls, the coil can freeze, drains can block and leak, small faults grow, and the unit can fail early.
Can I clean the filters myself?
Yes, if the manufacturer’s instructions say so. Switch the unit off first and let filters dry before refitting.
Talk to the engineers.
Call, message or send the form. We reply the same working day wherever we can.
