Split System Cleaning · Dorrigo
Dorrigo split systems accumulate contamination differently than coastal-band installations — the plateau's prolonged wet exposure at 731 metres and 2,034mm annual rainfall drives dampness-driven indoor coil biofilm and fan-barrel mould at a similar or faster rate than coastal humidity does. Chemical bag cleaning intervals still matter here despite the inland position.
Split system deep cleaning on the Dorrigo Plateau
The Dorrigo split system cleaning base is primarily residential plus dairy country farm-office installations where equipment runs long hours through cold winter months. The plateau's prolonged damp conditions accelerate indoor coil biofilm buildup and fan-barrel mould growth on units that go without regular deep cleaning, and the presenting fault (musty smell, reduced heating capacity) often gets misdiagnosed as a refrigerant issue.
Typical visit is 30 to 60 minutes per unit at $140 to $200 depending on system type. Hinterland acreage access affects realistic arrival times on any Dorrigo call, and FHC is straight about scheduling on the phone. Every clean is documented in a written service report.
What FHC delivers on every split system cleaning
A comprehensive chemical bag clean is a full maintenance clean of a split system, not a basic general service. Where a general service checks filters, coils and refrigerant charge in a broad way, a chemical bag clean strips the indoor unit down to the fan barrel, uses a purpose-designed chemical process to remove mould, dust, grime and biofilm from the fan barrel and evaporator coil surfaces, cleans the filters, and includes drain and condensate checks, airflow verification and general operating checks. The distinction matters because a system that is failing to cool effectively is often not low on refrigerant — it is caked with contamination that restricts airflow through the evaporator.
Typical timeline is 30 to 60 minutes for a standard split system; heavily contaminated systems or unusual system types can take longer. Typical price is $140 to $200 per unit depending on the specific system type being cleaned. FHC recommends the chemical bag clean where the unit shows visible mould or dust build-up on the fan barrel or evaporator, where a customer reports musty smells, or where cooling capacity has dropped noticeably without a specific fault code.
The service is carried out by ARCtick-licensed technicians (RTA AU069269), and FHC also holds $5 million public liability insurance covering the work. Every clean is documented in a written service report on completion covering what was found and any recommendations. A 12-month workmanship warranty applies where conditions apply.
Why FHC Refrigeration for split system cleaning
- • Chemical bag deep clean — not a basic service; $140-$200 per unit depending on system type
- • ARCtick licence AU069269 + $5M public liability — the technician doing the clean is legally certified
- • Written service report every clean; 12-month workmanship warranty*
Frequently asked
Do plateau conditions really make my Dorrigo split system need deep cleaning as often as coastal systems?
Yes, often at a similar rate. The 2,034mm annual rainfall and prolonged plateau damp produce sustained indoor humidity conditions that accelerate biofilm buildup on evaporator coils and mould growth on fan barrels, comparable to coastal-band contamination patterns. Cleaning intervals should reflect environment, not just installation age.
When should Dorrigo split system chemical bag cleans be booked?
Early autumn is a good rhythm, before winter reverse-cycle heating load hits. Cleaning the system before it's asked to work hard through cold periods catches contamination that would otherwise reduce heating capacity when it matters most.
