Top 10 Air Conditioning & Heating
in Hornsby, Sydney
TradeRefer lists 3 air conditioning & heating businesses in Hornsby with an average Google rating of 4.6★ across 71 reviews. The businesses below are ranked from highest to lowest rating — all ABN-checked and community-recommended.
Ranked #2026
By Google Rating
4.6★ Avg Rating
71 reviews
ABN Checked
ABN-checked
Top 3 Air Conditioning & Heating in Hornsby — Ranked by Rating
Sorted by public Google rating, highest first. All ABN-checked.
Enterprise Air-Conditioning & Refrigeration
Enterprise Air Conditioning are commercial, retail & industrial air conditioning specialists in Sydney. Call us on 02 9987 4573.
Empire Air Conditioning Services Pty Ltd
Empire Air Conditioning Services Your Local Specialists in Commercial and Residential Air Conditioning We are currently at Full Capacity and are not able to take on any new residential installations or service calls right now. Thank you for your understanding and support! Based in Hornsby, NSW, Empire Air Conditioning Services have been providing residential and […]
Eagle Air Conditioning Pty Ltd
Eagle Air Conditioning Experience year-round comfort with Eagle Air Conditioning’s customised air conditioning systems designed to fit your family, home, and lifestyle. Are you tired of suffering through scorching summers and chilly winters, never quite feeling comfortable in your own home? It’s time to say goodbye to unbearable heat and cold, and hello to year-round […]
How Much Do Air Conditioning & Heating Cost in Hornsby?
Based on New South Wales industry rates. Always get 2–3 written quotes.
Typical Range
$600–$2500
installed
After-Hours
$3750
Emergency callout
Avg Hourly
$1550
Hornsby market
Estimates only. Always request a written quote before authorising work.
Air Conditioning & Heating Licensing in New South Wales
In NSW, refrigerant handling requires an ARC licence. Electrical work must be performed by a licensed electrician. Gas ducted systems also require a gasfitting endorsement.
How to Choose the Best Air Conditioning & Heating in Hornsby
A checklist before hiring any air conditioning & heating in Hornsby, Sydney.
- 1
Confirm they are a licensed refrigerant handling contractor (ARC licence) — required by law for any work on refrigerant-based systems.
- 2
Ask whether they service all major brands or are aligned with one manufacturer — brand-agnostic technicians often provide more objective advice.
- 3
Get a written quote that specifies the exact make, model, capacity (kW), star rating, and warranty of any unit being installed.
- 4
For ducted systems, ask for a room-by-room heat load calculation — undersized systems run continuously and fail early.
- 5
Confirm the quote includes the disconnect/reconnect of power and any required electrician attendance, which is a separate cost with some operators.
FAQs — Air Conditioning & Heating in Hornsby, Sydney
How much does ducted air conditioning cost to install in Australia?
Ducted reverse-cycle air conditioning typically costs $6,000–$15,000 installed for a standard 3–4 bedroom home, depending on the number of zones, brand, and access difficulty. Split systems cost $800–$3,500 installed per unit.
What size air conditioner do I need for my room?
A rough guide: 1kW per 10m² for standard rooms. A 20m² bedroom needs ~2–2.5kW, a 40m² open plan needs ~4–5kW. A qualified HVAC technician will perform a proper load calculation accounting for insulation, ceiling height, and sun exposure.
How often should air conditioning be serviced?
Residential split systems should be serviced annually — clean filters, check refrigerant, inspect coils and drainage. Ducted systems and commercial units need servicing every 6–12 months depending on usage. Regular servicing extends lifespan and maintains energy efficiency.
What is a reverse-cycle air conditioner?
A reverse-cycle air conditioner provides both cooling in summer and heating in winter using a heat pump. It's the most energy-efficient heating option for most Australian climates, and is 3–5x more efficient than electric resistance heaters.
How long does a split system air conditioner last?
A quality split system air conditioner lasts 10–15 years with annual servicing. Inverter models tend to outlast fixed-speed units. Brands like Daikin, Mitsubishi, and Fujitsu generally have strong reliability records in Australian conditions.
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