Best air conditioning installers in St Marys
Last updatedDQ Electrical Services Pty ltd leads for air conditioning installers in St Marys, with cooling work sitting beside its electrical and solar jobs. Only one of these firms is based in St Marys itself, so the main differences are trade focus and where each one works. Choose by the job: an electrical contractor when cooling and wiring go together, or a commercial firm for plant and cool rooms.
Quick picks in St Marys
- Best for air conditioning with wiring in the same job: DQ Electrical Services Pty ltd, whose cooling work shares a team with its switchboard and solar jobs.
- Best for commercial cooling and cool rooms: Master Freeze, a St Marys firm holding electrical licence 173082C.
- Best for cooling on a warehouse or factory site: Eclipse Electrical, which plans air conditioning and electrical work as one job.
Best air conditioning installers in St Marys, ranked

#1DQ Electrical Services Pty ltd for air conditioning fitted alongside electrical work
24/7Licence publishedBased in Bossley ParkDQ Electrical Services Pty ltd, with its base in Bossley Park, serves St Marys and holds licence 257712C. Its trade is electrical, and it installs and maintains air conditioning as part of that work, so cooling can share a team with wiring, switchboards and solar. It also fits EV chargers and smoke alarms, and it runs thermal imaging checks. Its round-the-clock call-outs are for electrical faults, not cooling. Customers describe its staff as clear about the job and tidy on site.

#2Master Freeze for commercial air conditioning and cool rooms
24/7*Licence publishedMaster Freeze is a commercial and industrial contractor based in St Marys, holding electrical licence 173082C. It installs and services commercial air conditioning and cool rooms, and it compresses and treats air for plant. Its electrical work covers power distribution and control systems for refrigeration. It names logistics and storage sites among the places it serves. The firm is listed as open 24 hours, though that cover is stated for refrigeration work. Older customer feedback, from 2020 to 2022, praises its quoting accuracy and tidy work, so ask for current references.

#3Eclipse Electrical for air conditioning on warehouse and factory sites
After hoursBased in MinchinburyEclipse Electrical, Mechanical and Security Services Pty Ltd is a commercial electrician based in Minchinbury and covering St Marys. Its work is mostly for warehouses, factories, offices, retail and strata. It plans air conditioning, electrical and security work as one job from its workshop, so a site with several trades has a single contact. Out-of-hours calls are taken for businesses whose site has stopped working. It doesn't publish a licence number. Weekday hours run from 7am to 5:30pm.
Compare air conditioning installers in St Marys
The table sets each firm's base, after-hours cover and licence side by side.
| Electrician | Based in | After hours | Licence | Google rating |
|---|---|---|---|---|
| DQ Electrical Services Pty ltd | Bossley Park | 24/7 | โ | โ 5.0 (41) |
| Master Freeze | St Marys | 24/7* | โ | โ |
| Eclipse Electrical | Minchinbury | After hours | โ | โ |
24/7* : listed as open 24 hours, but the business doesn't say 24/7 itself. Ratings show from 5 Google reviews.
How we picked air conditioning installers in St Marys
For air conditioning, the order starts with customer feedback, with firms that have more of it weighted higher. A printed licence and after-hours cover that the firm states itself lift a business in the order. Location counts only for a firm based in St Marys, which applies to one of these. Each pick shows air conditioning work in its listed services or stated attributes.
Air conditioning installers in St Marys: FAQ
Which air conditioning installers in St Marys are based there?
Master Freeze is the only one based in St Marys itself, and it also works commercial cooling sites beyond the suburb.
Which of these firms has 24/7 cover?
Master Freeze is listed as open 24 hours, but that cover is stated for refrigeration, while DQ Electrical Services Pty ltd's round-the-clock call-outs are for electrical faults.
Does Eclipse Electrical work beyond warehouses?
Yes, Eclipse Electrical works mostly for businesses, including offices, retail and strata, and it lists air conditioning among its services.