Top 10 Air Conditioning & Heating
in St Marys, Adelaide
TradeRefer lists 4 air conditioning & heating businesses in St Marys with an average Google rating of 4.6★ across 496 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
496 reviews
ABN Checked
ABN-checked
Top 4 Air Conditioning & Heating in St Marys — Ranked by Rating
Sorted by public Google rating, highest first. All ABN-checked.
Morphett Air
Air Conditioning | Heat Pumps | Electrical | Plumbing | Solar
AIR Wholesalers Clovelly Park & Beverley
AIR Wholesalers Clovelly Park & Beverley is a top-rated air conditioning & heating business serving St Marys, SA. With a 4.8-star rating from 16 reviews, they are one of the most trusted air conditioning & heating providers in the area. Specialising in professional air conditioning & heating services, AIR Wholesalers Clovelly Park & Beverley delivers quality workmanship and reliable service. Contact them today for a free quote.
Climat Air Conditioning & Solar - St Marys
Climat Adelaide is your one-stop shop for all your air conditioning needs in Adelaide. We offer a wide range of air conditioning units for sale, and installation to keep your Adelaide home comfortable year-round. Contact us today for a free quote!
ACERair
ACERair provides expert professional air conditioning & heating services in St Marys, SA. Rated 4.3 stars by 22 customers, they are known for quality work and professional service. Get in touch with ACERair for a free, no-obligation quote.
How Much Do Air Conditioning & Heating Cost in St Marys?
Based on South Australia industry rates. Always get 2–3 written quotes.
Typical Range
$600–$2500
installed
After-Hours
$3750
Emergency callout
Avg Hourly
$1550
St Marys market
Estimates only. Always request a written quote before authorising work.
Air Conditioning & Heating Licensing in South Australia
In SA, refrigerant work requires ARC licensing. Electrical connections require a licensed electrician under the Electrical Products Act 2000.
How to Choose the Best Air Conditioning & Heating in St Marys
A checklist before hiring any air conditioning & heating in St Marys, Adelaide.
- 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 St Marys, Adelaide
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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