Twenty One Celsius
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We are proud to be the first choice in air conditioning for many Melbourne businesses, schools and residents for well over 10 years. As Melbourne's commercial air conditioning specialists, we create not only customised heating and cooling solutions, but also back them up with outstanding preventative and emergency maintenance keeping your system running smoothly, no matter what.

From a modest home, to the largest apartment complex, no job is too big or small for us. Our legendary customer service coupled with fast, friendly preventative maintenance and emergency repairs will keep your system working just like a new one, for years to come. You should be extremely proud of yourself and the fine group of people working with you.

I doubt we will come across another group of tradespeople as reliable, organised, efficient, careful, courteous, trustworthy, friendly, thorough and with the level of expertise you demonstrated all rolled into one, but one can only hope! I want to let you know that Reece and Mitch were really polite and helpful with any questions I had.
Services
21 Celsius have been in operation for well over ten years servicing clients from all around Melbourne and beyond. 21 Celsius are based in Bundoora, Melbourne. We directly employ plumbers, refrigeration mechanics and controls electricians to satisfy all the requirements of our Residential, Commercial and Industrial clients.
Enjoy 21 Celsius Air Conditioning's legendary customer service and affordable pricing for your premises' heating and cooling needs. If getting fast quotes and quick turnaround on system repairs sounds interesting to you, then you're going to enjoy working with 21 Celsius Commercial Air Conditioning.
21 Celsius ensure our technicians are constantly training on all types of heating and cooling equipment to ensure we can correctly diagnose and repair your appliance. We offer a fast no nonsense service to ensure you can have your system back up and running as quickly as possible. If you require a service, let us carry out a full audit and adjustment of your system.
Reviews (9)
Hope Tan
Hope Tan
Nov 27, 2021
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Positive: Professionalism
Engaged 21 celsius for 2 air con units service. Janine was very helpful and lovely over the phone. Technician was very professional, honest, on time and cleaned up after the servicing. I would definitely engage them for future air con maintenance and installations.
Sam Small
Sam Small
May 25, 2021
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Worked for 21 Celsius for several years, From an employees prospective was a great place to work, honest and trustworthy team with a wealth of knowledge. Highly recommend their services
Theetherealsky
Theetherealsky
Dec 21, 2020
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Aaron was very professional, got our ducted heating working perfectly within a few minutes. He was friendly, punctual and willing to explain the process. Plus, he gave us some tips on how to maintain the heating system. Very grateful! Thanks Aaron.
Brett Spedding
Brett Spedding
Dec 08, 2020
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I arranged through RACV Club Home Response for a new air conditioning unit to be installed at our investment property, when the old one broke down. Janine at 21 Celsius has been very helpful in organising a replacement unit, which is of a much better quality than the old one and at a much better price than what we were quoted with another company. She also kept me up to date with the progress, from obtaining quotes to when the unit was to be installed. From my experience 21 Celsius is a reliable business providing excellent quality products and service at a very reasonable price.
Calum Downie
Calum Downie
Sep 12, 2020
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Positive: Professionalism, Responsiveness
Brilliant service. Caring and responsive, Aaron was brilliant in getting the quote done quickly, accurately, and professionally. He then followed up with excellent repairs, showing genuine care for his customers. He even had a smile for our baby girl.
Service: Repair AC
Xiaoxi Zhang
Xiaoxi Zhang
Sep 10, 2020
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Got my new duct heater installed by this company via RACV yesterday. The technicians are professional & responsible. The quote is not so much different from other suppliers however I am very happy with the quick response in this cold winter time. Jim & Reece attended my home not only installed the system but also keep the impact to the house (noise, whole on the wall, dust) at very minimum level. Great appreciated.
Mohammed Rafeek Azath
Mohammed Rafeek Azath
Jul 31, 2020
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Super happy with 21 Celsius!. A big shout-out to Aaron Rose the technician came out to fix my ducted heater. He is brilliant an having awesome knowledge in diagnosing the issue in no time and he also ensured that he checked all other possibility for the cause and explained me in detail. He is good and very presentable person and happy to recommend him. Well done Aaron , keep up the good work.
Mary Parlange
Mary Parlange
Jun 23, 2020
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Super happy with 21 Celsius! The technician came out to assess my condenser, which had shorted out on a hot day. This was a second opinion, as the first company who came out to look at the issue still hadn’t sent me a diagnosis or a quote three weeks after their visit (although in a phone call they said I needed coolant and there was a leak, so we’re talking $4000 or so). 21 Celsius’ technician checked it out, explained everything to me, told me there was nothing wrong with my system, it was just the load being reduced on a super hot day, fixed some insulation on a pipe and went on his way
Bundoora Cardiology
Bundoora Cardiology
Jun 03, 2020
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Called Celsius 21 today as the a/c in one of our treatment rooms was leaking.We are unable to perform tests without the a/c working. Spoke to Janine a lovely receptionist who went out of her way to organise for someone to come at short notice. Tech arrived on time was very polite and friendly and repaired the problem. We will definitely use this firm again.