Commercial air conditioning repairs, diagnosed and fixed properly
When a system stops cooling, leaks or throws an error code, it affects staff, customers and stock. Our licensed technicians find the real cause, explain it and quote before any repair work starts.
Report a fault
Tell us what the system is doing and where the site is, and we'll get back to you as soon as we can.
Why has my commercial air conditioner stopped cooling?
The most common reasons a commercial air conditioner stops cooling are blocked filters or dirty coils, a refrigerant leak, a failed fan motor, capacitor or contactor, a blocked condensate drain that has tripped a safety switch, or a controls or sensor fault. Some of these are quick to fix and some point to a bigger problem, so the right first step is a proper diagnosis rather than guessing at parts. Coola Air Conditioning diagnoses and repairs commercial cassette, ducted, split and VRF systems across Brisbane's northern suburbs, from Narangba to the Brisbane CBD, and quotes every repair upfront.

Find the real fault, then fix it
Swapping parts until something works is expensive. We test the system properly so you only pay for the repair it actually needs.
What we repair
Most breakdowns fall into a handful of causes, and most can be prevented with regular maintenance.
Not cooling or heating
Low refrigerant, dirty coils, failed components or a controls fault.
Water leaking from units
Blocked condensate drains or pumps, often from a cassette in the ceiling.
Error codes and tripping
Electrical faults, failed sensors or safety switches shutting the system down.
Noisy or vibrating units
Worn fan motors, bearings or loose panels and mounts.
Not turning on
Power supply, contactor, capacitor or control board faults.
Weak airflow
Blocked filters, failing fans or a ducting problem.
How a commercial repair works
Clear steps from the first call to a system that's working again.
Book a site visit
Tell us about the site, the systems and what is going on. We book a time that works around your business.
Inspect, service & test
We work through each unit, clean and test it, and note anything that needs attention.
Report & upfront quote
You get a clear rundown of what we found, and any repairs are quoted before work starts.
Logged & back on track
Every visit is recorded, so you have a service history for the site and the next visit is planned.
More commercial air conditioning
Explore more of what we do — or get a free quote and we'll point you the right way.
System playing up?
Tell us what it's doing and we'll diagnose it properly and quote the repair upfront.
What our customers say
Genuine reviews from our Google Business Profile — 28 and counting.
“Lee from Coola Air Conditioning installed a new air conditioner for us today. He was on time, friendly and very professional. I highly recommend Coola Air Conditioning for all your air conditioning needs.”
“I've used Lee's services for air conditioning for several years and always receive great service. A good communicator, shows initiative to coordinate options and flexible on scheduling site visits. Pleasure to deal with.”
“Lee was very prompt, professional and friendly, from quote to install, set up and clean up. Did an excellent job. Very highly recommended.”
“The best. Highly recommend using the company. On time, great to work with, competitive pricing.”
“I've used Lee many times for our air conditioning — from cleaning and services to replacements. Always priced well and takes pride in his work.”
“Great guy. Very efficient and does a great job at a good price. Would recommend him greatly.”
Servicing Brisbane & the northern suburbs
Fast, local air conditioning right along the northern corridor — Narangba to the Brisbane CBD. Not listed? Give us a call and we'll let you know.
Brands we install & service
Supply, installation and servicing of all major air conditioning brands.
- Mitsubishi Electric
- Daikin
- Fujitsu
- Haier
- and all leading manufacturers
Commercial repair questions, answered
Everything you need to know before you book. Still unsure? Just give us a call.
Water leaking from a commercial unit, especially a ceiling cassette, is usually a blocked condensate drain or a failed condensate pump. It can also come from a dirty coil icing up and melting. Turn the unit off to protect the ceiling and stock, and get it looked at, because the cause needs fixing rather than the water just being mopped up.
It depends on the fault, the age and condition of the equipment, the refrigerant it uses and how much the repair costs against a replacement. We give you an honest assessment and quote both options where replacement is worth considering.
Yes. We repair Mitsubishi Electric, Daikin, Fujitsu and Haier and other leading commercial brands.
It depends on the fault and the parts involved. We diagnose the problem, explain it and quote the repair before we start, so you can decide with the facts in front of you.
Regular preventative maintenance catches most causes of breakdown early. Ask about a maintenance contract and we'll put together a schedule for your site.
Report a commercial fault
Tell us what the system is doing, the type of unit if you know it, and where the site is. We'll get back to you as soon as we can. If it's urgent, give us a call.
- Call us(07) 3543 2543
- Emailinfo@coolac.com.au
- Service areaNarangba to the Brisbane CBD













