Air Conditioning
Service & Repairs
in Mosman NSW
Air con stopped working or not performing properly?
Artarmon Air Conditioning carries out maintenance and servicing, repairs and deep cleaning across a wide range of air conditioning systems and brands, in houses, apartments and light commercial properties throughout Mosman and Sydney's Lower North Shore.
We service split systems, multi-split systems, ducted, package unit, VRV and VRF for homes, apartments and light commercial properties.
If your air conditioner is not cooling properly, leaking water, displaying an error code or simply due for a service, we can inspect the system, diagnose the issue and recommend the appropriate next step.
Air con stopped working or not performing properly?
We diagnose and repair faults across a wide range of air conditioning systems and brands, in houses, apartments and light commercial properties throughout Mosman.
Common problems we attend include:
Aircon not cooling
Aircon not heating
Water leaking from indoor unit
Error codes
Corroded outdoor units
System switching off unexpectedly
Poor airflow
Unusual noises
Refrigerant leaks
Electrical faults
Control faults
Drainage problems
Outdoor unit faults
Our focus is on correctly diagnosing the cause of the fault before recommending repairs or replacement. On older systems near the water we also assess the condition of the outdoor unit, its coil and its mountings, because corrosion often changes whether a repair is worth doing.
Routine aircon servicing helps keep your system clean, reliable and operating efficiently. In a coastal suburb it also slows the damage salt air does to the outdoor unit.
Depending on the type and condition of the system, a service may include:
Clean and inspect filters
Inspect and clean indoor unit components
Clean and disinfect indoor coil
Check condensate drain operation
Inspect outdoor coil
Check electrical connections and components
Test cooling and heating operation
Check airflow and outlet temperatures
Identify signs of wear, leaks or developing faults
We service split system, multi-split, ducted, floor console, and VRV/VRF air conditioning throughout Mosman.
If your split system has heavy dust, mould or contamination inside the indoor unit, routine servicing may not be enough.
Our aircon deep cleaning service provides a more thorough clean of internal components, including areas that cannot normally be accessed during a standard maintenance visit.
Deep cleaning may be recommended where there is:
Heavy dust build-up
Mould or organic contamination
Persistent odours
Dirty fan barrels
Reduced airflow
Long periods without servicing
Homes close to the harbour are often shut up through winter and run hard through summer, which is the combination that grows mould inside an indoor unit. A thorough clean can improve airflow, reduce odours and help restore system performance.
Split systems are common throughout Mosman apartments, heritage homes and smaller commercial spaces, particularly where there was never a practical way to run ducting.
We service and repair most major brands and can investigate issues including:
Poor cooling or heating
Water leaks
Blocked drains
Refrigerant faults
Electrical faults
Failed sensors
Fan faults
PCB and control issues
Noisy operation
Corroded outdoor units
Multi-split systems, where several indoor units run from a single outdoor unit, are common in Mosman apartments and in houses where only one outdoor location was ever available.
Regular split system servicing can also help identify developing issues before they cause a complete breakdown.
We provide servicing, maintenance and fault diagnosis for ducted air conditioning throughout Mosman, including larger homes running multiple zones.
Common ducted air con problems include:
Poor cooling or heating
Uneven temperatures between rooms
Zone control faults
Restricted airflow
Blocked return air filters
Damaged or disconnected ductwork
Drainage problems
Controller faults
Refrigeration faults
Electrical faults
Mosman's larger houses often have long duct runs and roof spaces that step and change height over additions, so ducted faults here are frequently mechanical rather than electrical. We inspect the roof space as part of diagnosis rather than working from the controller alone. If a fault requires additional parts or major repairs, we can provide a repair recommendation and quotation following diagnosis.
Old or unwanted air conditioning systems should be properly decommissioned before removal.
We can safely recover refrigerant and disconnect air conditioning equipment for renovations, replacements and property upgrades.
Refrigerant is handled in accordance with the Refrigerant Handling Code of Practice 2025, AS/NZS 5149 and the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989.
Local Aircon Service in Mosman
As a local air conditioning business servicing Mosman and the Lower North Shore, we regularly work in houses, apartments and commercial properties throughout the area.
Air conditioning systems in Mosman can present a range of service and installation challenges, including:
Salt air corrosion on outdoor units
Steep blocks and external stairs
Outdoor units on brackets above a drop
Apartment and strata access
Heritage and conservation area properties
Concealed and externally run pipework
Restricted outdoor unit locations on narrow boundaries
Noise considerations between close neighbours
Long pipe runs between indoor and outdoor units
Older installations requiring modification or repair
We take these factors into account when diagnosing faults, planning repairs or recommending replacement equipment.
Balmoral, Clifton Gardens
and the Rest of Mosman
Mosman is a single suburb with a lot of well-known corners, and we service all of them: Balmoral and Balmoral Beach, Beauty Point, Chinamans Beach, Clifton Gardens, Georges Heights, Middle Head, Mosman Bay, Spit Junction and The Spit.
Anywhere near the water, the outdoor unit is the part that decides how long the system lasts. Salt-laden air corrodes the aluminium fins on a condenser coil, which restricts airflow and makes the system work harder for the same output, and it rusts casings, brackets and fixings. A harbourside system that has its outdoor unit properly cleaned on a regular cycle will outlast an identical one left alone by years.
The other Mosman constant is access. Steep blocks, long sets of stairs and outdoor units on brackets over a drop are normal here, and it is worth mentioning when you book so the visit is planned for it.
Why Choose Artarmon Air Conditioning?
Local aircon service in Mosman and the Lower North Shore
NSW contractor licence 394793C
Refrigerant Trading Authorisation AU60391
Residential and light commercial experience
Clear fault diagnosis and repair recommendations
Split system and ducted air con servicing
Aircon repairs, maintenance and deep cleaning
Quality-focused workmanship
Highly rated by local customers
Aircon Service Near Mosman
We also service surrounding Lower North Shore suburbs including:
Cremorne, Cremorne Point, Neutral Bay, Cammeray, Crows Nest, North Sydney
If you are nearby and unsure whether we service your area, contact us and we can confirm availability.