Service and Repairs Air Conditioners & Heaters

We provide a complete service and repair for all types of air conditioning, evaporative coolers or ducted heating systems.

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Coldflow offers full service and repair for air conditioners and heaters across Melbourne, covering all brands.

Their technicians perform emergency breakdowns, routine maintenance, ducted heating and cooling repairs, and installations.

With 50+ years of experience, they offer free quotes and prioritise the reliability and efficiency of your system.

About Coldflow Service

Coldflow is a family owned and operated business servicing the entire Melbourne area.

We service all brands of air conditioners and heaters, and our technicians are fully qualified and experienced.

We offer a range of services, including emergency repairs, ducted heating and cooling system installation, and regular maintenance.

Frequently Asked Questions 5 Common AC Problems

Every time you turn the Air Conditioner on, the breaker goes

This is irritating!

A weak breaker, a faulty contactor, a grounded compressor, can easily cause it or since the condenser fan was shorted to the ground.

The fan runs, however, the compressor does not

Likely, your compressor is broken in some way!

There might be a burnt wire, a malfunctioning compressor or a malfunctioning beginning capacitor. You may additionally have your compressor shorting out since of the overload security on it. Likely, you will certainly have to change the compressor.

The air conditioner hums, but no fan

You have a humming air conditioner, but you have no air?!

A broken fan, a faulty capacitor or a burned out wire can easily cause this.

The outdoor system is running, however, the fan is not

Any number of things could have gone wrong here, but it might be that you have a grubby filter, the capacitor is broken, a wire burned off, the blower motor is broken, the fan centre is broken, or the evaporator coil is filthy.

You will probably need to pull your air conditioning unit apart in order to identify what is going on.

The air conditioner will not turn on!

Caused by any sort of number of things, this is the downright most common air conditioner problem. There may be an issue with the power supply to the device, a malfunctioning transformer/thermostat/contactor, a contactor wire could have burned off or your dog chewed the wires.

Either way, the issue will primarily have to do with the power supply.

Melbourne Air Conditioning Service Locations

Melbourne residents looking to cool down during the hot summer months know they can rely on Coldflow for reliable air conditioning service and repairs. For over 50 years, we have provided quality installation and air conditioning repairs across Melbourne's suburbs. Whether you're in Glen Waverley, Richmond or even Mornington, we are able to come to you and are ready to provide unbeatable expertise and experience.

Coldflow are Melbourne's most trusted name when it comes to air conditioning needs!

View All Our Melbourne Service Areas

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Experience the peace of mind that comes with a perfectly functioning gas ducted heater or air conditioner.
Don't let your comfort wait!

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Coldflow Service Goals

Our goal is to provide our customers with the best possible service, and to do so we offer a 100% satisfaction guarantee on all of our work.

We also offer a free quote on any new installation or complete replacement of an existing system, so you can be sure you're getting the best possible value for your money.

What Our Customers Are Saying

This is the second time we have had Coldflow at our house. Each time the quotes were competitive. The installers arrived on time and were super efficient removing an old device and installing the new unit. Thanks to the team especially Nick and the electricians

STEPHEN G.
SURREY HILLS
December 2023

After 4 weeks of research, quotes & cold to replace split system I am very happy with Coldflow from Daniel coming to give quote, efficient installation by pleasant men & communication on phone. Cosy now with my bigger heating system as advised. Thank you. Would recommend you from my experience.

TRISH A.
BALWYN
July 2023

Very likely, your team arrived on time. They worked quickly and efficiently, plus they were very friendly. They left our house as they found it , clean and tidy. Just one thing they left behind a piece of equipment which I'm sure they can use. It is no use to us, so it would be a shame to throw it out. Many Thanks.

ANNELISE B.
ROWVILLE
February 2023

Great friendly service. Chris called beforehand and arrived between times we were given - checked unit was running safely and as well as it could (given age) and ensured it was safe to continue using. He also gave great advice regarding updating the unit. Customer service from booking to followup was fantastic. Well done Coldflow !

CHERYL D.
BENTLEIGH EAST
July 2025

This my third dealing with Coldflow (3 different properties). Their response times are quick and they make the process extremely easy. The sales person is professional, responsive and easy to deal with. The installers took care, were polite and very easy to deal with.

Debra K.
ASCOT VALE
April 2023

I received a welcome email reminder that a service was due and made a booking date to suit. Your technicians contacted me the day before to confirm a time and they arrived on time as promised. The work was carried out efficiently by two young men, Steven and Hilo, who did so with courtesy and good humour. They are a credit to your business.

AAFKO S.
HEATHMONT
October 2024

Ray did an excellent job. As it turned out, the error that caused the problem was cleared when the power was off after the storm, but he still made sure the system was working properly by doing a really thorough check of everything. Very helpful, professional and clearly very keen to make sure the job was done properly. Great work!

ANDREW R.
MULGRAVE
February 2024

Amazing turnaround and communication! We had a sales person booked in 3 days after we made the online enquiry. Quote was provided on the spot. All questions answered promptly. Installation one week later. All completed in one day. Sales and installations staff were all super friendly, approachable and helpful. Could not fault the team or service!

MEGAN T.
LAUNCHING PLACE
June 2025

Jared was most helpful at all stages especially with filling out the form during the cash back submission to Mitsubishi. I was very happy with Scott the electrician who returned the installation areas back to normal condition. Thanks Jared and Scott.

LIZ P.
NOTTING HILL
July 2023

Our tech Ray did an outstanding job fixing our ducted heating system. It is very obvious that his experience makes him a valuable asset to Coldflow! Thanks for explaining every step of the repair so clearly & for your relaxed & friendly manner! Will 100% rebook a service as it is required down the track! Thanks again!

SEAN M.
DINGLEY VILLAGE
November 2024

Daniel Hay, the person that measured up and provided the estimate was excellent. He was very professional and came across as very honest and trustworthy. The installer's were excellent on the day they just got on with the job and removed all the rubbish and vacuum up afterwards.

MARIAN D.
EDEN PARK
February 2023

Overall very satisfied. Quick to come out to quote, gave various alternatives and recommendations. Installers were very efficient installing four units in a few hours without leaving a mess and units are positioned nicely. Also much more competitive offer than another couple of quotes I received.

PAUL F.
SANDRINGHAM
April 2023

Relatively minor problem. Serge took due diligence and checked whole unit. May need a new stop valve in future. He explained how how well our 19yo unit is functioning and gave us thoughts on future possibilities. Obviously a very experienced technician and a real gentleman.

ROD P.
KILSYTH SOUTH
February 2025

An excellent experience. The online was simple and efficient. The call out team were on time, clean uniforms, friendly and polite. Their work was excellent. Everything was made clear. I honestly couldn't fault my dealings with your firm, you should be very proud of the work you must have done to achieve this standard.

Richard S.
BRIGHTON EAST
July 2023

The whole process was very smooth end to end and we are very happy with the result. Everyone we dealt with was very professional and got back to answer our queries right away. We have already recommended Coldflow to 2 of our friends who are looking to have split systems installed.

KATHY H.
BONBEACH
September 2025

The two technicians were well mannered, presented well as representative of your company and did a good job explaining what they had done in terms of the service of our gas heater. They were polite, arrived when they said they would which is important given we work form home and have work commitments. Great ambassadors for your company.

MARIANNE S.
BALWYN
April 2025

Every step of the process was first class and professional. You did what you said you were going to do, on the days that you promised and the installation was like swiss clockwork. Best service experience I have had in the last 5 years. Special shout out to Shanon who organised superbly from day one.

DARYL K.
TOORAK
August 2025

Coldflow recently removed our gas ducted heating and it replaced with a reverse cycle air conditioner. The process from quote to installation was simple and quick! Communication in the lead up to and on the day of installation was terrific. They also tidied up after themselves! I wouldn't hesitate to recommend Coldflow to family and friends.

Madeleine L.
KENSINGTON
September 2024

The staff who attended to me was very good, courteous, communicated well and did everything possible to identify the problem and he did identify the problem. He also clearly explained the possible options for resolving the problem. I was very happy with his conduct.

Gladys M.
CAULFIELD NORTH
July 2025

The team of installers did a fantastic job. We couldn't believe how quick they were in completing the installation of our new air conditioning system. I wouldn't hesitate to recommend Coldflow to friends or family if they require an air conditioner installed.

ANDREW R.
ALTONA
February 2024

I received a call about 20 minutes before the team arrived at my house. They were extremely helpful and friendly. I was able to pay for the job on the spot, or alternatively, the office could send me an invoice. I appreciated the flexibility of the payment methods.

SUE W.
HIGHETT
June 2025

I was happy with the whole procedure, the cheerful telephone contacts including Adam, the visit from Chris for the original service, the quotation and information from Brian and the two installers yesterday. Thank you all for being so positive and Helpful.

VERONICA N.
ENDEAVOUR HILLS
June 2023

I have always had very good service from Coldflow in the past and now at present and I would thoroughly recommend them to everyone who has airconditioning. As our house is relatively new at present, we are waiting to hear from the builders if our system is still under warranty, if it isnt we will certainly get back to you again.

LINDA F.
CLYDE
January 2025

Very glad and relieved I chose Coldflow. Your installer Murray arrived at 7am Monday 21st, was quickly to work with a minimum of fuss. Old Brivis unit and new Braermar unit out and in through the roof. All over by 9am. He showed us how to use the Braemar control unit before leaving. Great job.

PETER H.
MITCHAM
January 2024

Chris Didcock was very friendly and reassured me that the issue would be rectified. However, our heater went back to fault mode after Chris left. As promised, Chris came first thing in the morning and reset the heating unit after being in contact with the manufacturer about the error code.

MICHAEL B.
LYNDHURST
June 2024

STEVEN crcic IS THE man !!!!! I have never had a better service in my life my girlfriend and I are so stoked he got the fan in the other room working. He was professional caring and overall a champion. Give the brother a few weeks paid time off and a raise and a promotion. 10/10 can't recommend enough

MARCUS K.
COLLINGWOOD
January 2024

Fantastic service both in regards to receiving the quote (the man sent out seemed to be very knowledgeable and helpful in providing advice on what would work) as well as the installers, who were timely, friendly, knowledgeable and professional in their installation of our split systems :) very very happy with the service we received!!

MARC P.
WOLLERT
January 2024

Team did a great job, install team had to vary the installation location of parts, access etc, vs. communicated during the sales process. This is fine, just a note that worth getting feedback from your install team to your sales team to help future customer comms. The team kept the site clean and took away all rubbish which was great

CHARLIE H.
FAIRFIELD
April 2025

The whole process from selecting the Aircon, advised by Sales Rep Jared to the installation by Bailey and Anton was so efficient and smooth flowing. Installers were exceptionally courteous and helpful and professional. I couldn't be more pleased with the overall experience. Thank you very much!

Ranjit K.
FOREST HILL
June 2023

Prompt and good communication in letting customers know when they are about to arrive. They do and communicate what was done in service. Any questions are answered and I like the professionalism of turning up in a company named work vehicle and uniform. Also the payment method is trusted with a receipt on the email

KATHERINE V.
SCORESBY
November 2024

On time, informative quote from pleasant sales person. Quick, clean install from pleasant on time installer. Installation even brought forward, quote on Wednesday, instal on Friday! So far great service just got to see how unit performs in hot weather.

Elizabeth A.
NARRE WARREN SOUTH
September 2023

Craig was great, explaining thoroughly & giving advice on appropriate systems to best suit our floor plan. Advised where best the systems should be installed. The young lads installing were absolutely marvelous! Very polite, very tidy & we can't fault their work. Thank you to all involved in making our purchase a hassle free transaction

TRACEY M.
BERWICK
November 2023

Daniel Hay - Sales consultant was awesome and he recommended the best EvapCooling system for my double storey house. Installers were amazing. Did the best and clean job. Highly recommend ColdFlow for professional service and they are THE BEST in Melbourne. PERIOD.

PARAM C.
HILLSIDE
December 2023

I had not dealt with Coldflow until very recently. In a two week period I have dealt with service, sale and installation personnel. All of them were extremely pleasant to deal with, very helpful and efficient - great customer service makes happy customers :)

WENDY L.
MALVERN EAST
August 2023

Jared, Lucas and Luke were all very professional, friendly and courteous. We were very impressed with the communication and all were on time for scheduled appointments. They were all just really easy to deal with, we'd definitely recommend Coldflow.

KATE H.
CHADSTONE
December 2023

Darren Story was very helpful with the initial site visit, he explained clearly how the installation would run, and gave us the options. Ash and his team did a highly professional job with the installation, and I am thankful that they wore masks as my mum was home recovering from surgery. A brilliant job all round, thank you very much.

Patricia j.
PARKDALE
April 2023

We had a great experience. We were called when there was a cancellation and had the heater installed very quickly. Nick who did the installation did a fantastic job, please pass our thanks on to him. Would highly recommend his work to anyone. Kind Regards

IAN G.
ASHWOOD
January 2024

Organised for the team to come out and assess the in laws heating and cooling. There were 6 systems in total. All were checked and reports received. Services conducted on the systems worth keeping and advice given re the others, allowing informed decisions to be made. Highly recommended.

LINA S.
MOOROOLBARK
July 2024

The whole process was smooth from beginning to end. (Brian was Sales Rep). Good communication was provided via phone or txt msgs. The installer (Matt) was punctual, professional, polite, friendly, and a hard worker on a very hot day! A/c unit is effective, quiet and a slimline design. Thank You!

JENNY T.
CLYDE NORTH
February 2025

Sorry I had forgotten the survey. All went well. Ray came as he said and went to work straight away. He left the area clean and tidy after explaining what he had done for the service. Will definitely look to Coldflow in two years time for the next service.

LIZ P.
NOTTING HILL
June 2024

Nick came and installed my parents heating and evaporative unit and was absolutely amazing to deal with. He was professional, polite and most of all happy to answer all our questions. Thank you Nick. Thank you to Tom the sales rep who originally came to see us too.

ANGELA M.
RINGWOOD
February 2023

Daniel was great to deal with, thorough, answered all our questions and communicated well the whole way through. The installation team that come out were fantastic. Double checked anything they needed to, polite, personable and respectful of our home and that my partner was working from home while they were here.

Will C.
ROMSEY
February 2025

This was an incredibly easy process for us from start to finish. Daniel was wonderful at determining the best fit for our house and life and made the selection process so easy. The team on the day were quick and did a great job. We can't believe it didn't even take a full day. We are so happy with everything!

Tess F.
COBURG
January 2023

Rang for a service on the existing gas ducted heating system to find the system had died. A quote for a new system was provided on the day and installed the next day. The installation team were excellent, providing great advice and support during the installation. Sincere thank you to all.

TINA M.
TEMPLESTOWE
June 2025

We would have liked to be given the option whether to have the smelly chemicals sprayed in the split systems, as the smell lasted for over a week and we would have opted not to have that. Otherwise we are very happy with the overall service and communication from the technician.

LAUREN C.
RINGWOOD NORTH
August 2025

Dealing with your firm has been a very pleasing experience. Fabian and Hoy were so pleasant to deal with and carried out a very tidy installation. George and Christian were also very efficient in completing the electrics. We would not hesitate to recommend Coldflow. Thank you for your service.

SANDRA J.
MONT ALBERT NORTH
August 2025

Very happy with the whole process. All were knowledgeable and professional and turned up on time. They also worked through some pretty wet cold and windy weather but just got on with the job. Everything was explained and we were consulted if there were changes needed The system is working well and we are very happy with it

DIANNE L.
KEYSBOROUGH
June 2025

Darren Storey - Professional, knowledgeable, easy to deal with. Adam scheduled the installation promptly and then it happened a week earlier - great. Installation crew lead by Jason - fast, efficient, timely - considering the wet weather throughout the morning and hopefully all has been done properly.

MICHAEL A.
DINGLEY VILLAGE
November 2023

I was very happy with this companies service. I had a lot of appointments and they made a time that suited. They even showed me how to use the ducted heating system to as an air conditioning ducted system as I only have an air con in the lounge room. I was very impressed.

DANIELLE D.
BORONIA
October 2024

The whole installation and mains connection went seamlessly, with only a very small 'mains disconnect' period, which was great as my son is currently WFH and had a very small unavailability time with work. Very happy with the whole process, from quote to installation.

Keith G.
HAMPTON PARK
February 2023

More Coldflow Customer Reviews >

Service and Repairs Air Conditioners & Heaters

Book Repairs or Maintenance

About Coldflow Service

Frequently Asked Questions 5 Common AC Problems

Every time you turn the Air Conditioner on, the breaker goes

The fan runs, however, the compressor does not

The air conditioner hums, but no fan

The outdoor system is running, however, the fan is not

The air conditioner will not turn on!

Melbourne Air Conditioning Service Locations

Book your service today

Coldflow Service Goals

What Our Customers Are Saying

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