Brent Arneaud from Cool Running installation was recommended to me by High- Tech Gas Services to replace my ducted gas heating. Brent presented himself in a very professional and friendly manner. I have been through quite a few Gas heating installation companies and I was extremely disappointed with their feedback and pricing. I decided to go with Brent Arneaud from Cool Running Installations. The reason for this choice was due to Brent's professionalism, in presenting his explanation regarding what was needed to be done and his prompt reply with a quote that stipulated what was needed to be done at a reasonable price. My wife and I are extremely happy with Brent's workmanship and his eye for detail in installing our new Gas Heating Unit and Ducting. We are so pleased to recommend Brent without any hesitations to anyone who requires their Gas heating looked at.

David Cole

 Hunters Hill NSW

Thank you for sending Greg to service my heater on Monday, he is always very professional & did a fantastic job.

Many thanks

Joanne Hedge

 West Ryde NSW

Steve returned my call in regards to my ducted system not functioning. I had been advised by another company I required a new controller, which I was hoping Steve could supply. After emailing pics of my issue, Steve called me back & walked me through the issue & saved me about $400. Thank you Steve, it's refreshing to know there are people out there still doing the best by the customer. I will definitely be in touch if I ever need any repairs again.

Many thanks

Pamela Hutchison

 Woongarrah NSW 2259

Hi Stephen,
Just wanted to let you know how fantastic Brent was at installing my new heater.
I had phoned Braemar heaters on 22nd August asking for help in choosing a new heater for my house. Within an hour I had a response from Brent who was working near my area that he would call in late that day on his way home to advise. He arrived when he said he would, was very down to earth and chose the best heater for my circumstances. He sent his quote when he said he would and I accepted it straight away. He then went out of his way to collect the heater instead of waiting for it to be delivered which meant I had the heater installed within two days of accepting the quote.
His service didn’t stop there! I had told him my epic story of waiting for service to the gas heater and to the air conditioner and all the costs associated with these unsuccessful services in hope I could get some sort of heating into the house. During his installation he discovered exactly why the air conditioner wasn’t heating the house although the unit was working (as the air conditioner service person did acknowledge). The ducting for the air conditioner in the roof space had become disconnected (although the air conditioner service invoice stated the ducting had been checked). He took a photo of the problem for me and repaired it on the spot. Way beyond the call of duty!
And it didn’t stop there. Today, three months later, I sent Brent a text asking if he still had the photo on his phone. He responded with the photo and enquired how things were going.
Very personable, very caring and extremely good at his job.
Brent came to me thorough Hi Tech Services. Would I recommend them to you – you bet you life on that one!!!!

Many thanks

Adrienne Watson


Very comfy-cosy once again since Brent Arneaud of Cool Running Installations replaced our old under-floor gas heater. This also involved replacing and reconfiguring the supply and return ducting and splitting the system into 3 zones. To simplify and tidy the ducting, Brent cut an opening thru a brick retaining wall through which the main ducts now pass - brilliant! I can highly recommend Brent who is knowledgeable and hard-working and simply a very nice guy.

James Hagen

Mona Vale. NSW

I am delighted with the installation from Brent of Cool Running Instalations and Stephen from Hi tech. Very professional and on time as well as friendly .


Cremorne. NSW

Hi Tech have been looking after my system. Greg has kept my older system running smoothly for years. A professional, friendly service guy.
A recent upgrade of machine and ducting was completed promptly and expertly by John Montgomery under very difficult site conditions.
I can happily recommend the HI-TECH team.

  Burwood. NSW

Hi-Tech Gas Services serviced our Brivis installation for many years. Recently we had to replace the unit. Stephen recommended Cool Running Installations for installing a new Braemar gas heater.
Brent Arneaud of Cool Running Installations provided us with a competitive quote and professionally installed the unit. We can recommend both Hi-Tech Gas Services and Cool Running Installations.
Kees de Leeuw


Hi Steve, This is just a personal note to thank you for arranging service on our Brivis Heater so quickly.
Roger did a great job. Our heater is now working!

With every best wish

  Warrawee NSW

Our heater stopped working in June, right at the start of winter. We thought we'd be shivering all the way through the cold but Brent from Cool Runnings came to our rescue. He installed a brand new heater within two weeks of quoting our job and re-routed the existing ducting so that our living area actually felt warm and cosy. Brent did a fantastic job, all finished by early afternoon. I would highly recommend him to anyone who wants a genuine, reliable and efficient contractor.



Hi Stephen,

Delighted with my new Braemar heating system installed with speed by Brent of Coolrunnings who was pleasant and professional.


Anne McKeown

Hi Stephen,

Just wanted to thank you and Greg for getting my spa heater fixed yesterday.

It was short notice and it is Christmas and Greg came and did a good job to get the heater fixed. Greg is a good guy.

I appreciate what you did.

Phil - Putney

I had an ongoing problem with my central heating unit that was costing me a fortune to fix with another company. I called Hi-Tech and Steve came around and fixed the problem immediately and for a minimal cost. I have since used them to replace the unit and Roger was very accomodating, honest and professional. Thank you for all your help!

Renae Harrison - Sydney

When we replaced our existing gas heater it was 30 years old and Stephen from HiTech Gas services had kept it going for the last 5/6 years of it's life. He and Roger did a great job keeping it going, but eventually the unit failed and parts to fix were not available.
Stephen helped us research new options and recommended a couple of potential installers. We met with John Montgomery , he impressed us so much with his attention to detail and " perfection" approach"that he got the job.
Having read other reviews herein I concur with both K Duffy and A Pitman that John and Stephen were the best people for the purchase and installation.
Both these gentleman come highly recommended if you require a professional and competent approach to your installation.

Ted - Wahroonga

After weeks of a middle of winter cold house and various "experts" looking at our (we rent) large outside gas install. Stephen came along, knew the problem straight away, ordered the part and we were warm again! Knows his stuff and gets things done. 5stars from me.

Michael Anderson - Mosman

Hi-Tech Gas Services was recommended to us by Brivis for service of our ducted heating system. Steve and Roger were able to solve some tricky issues with our system and also successfully installed a wi-fi controller. Their knowledge of the system, professionalism and perseverance were exemplary. We would highly recommend Hi-Tech and are very grateful for their work and attitude.

Kim - Lambton

Stephen Hamlyn of HI-Tech gave us three referrals to replace of heater system and we went with Cool Runnings Installations. Brent was terrific, doing the job in less than half a day, including checking and repairing our original ducting and giving me a complete rundown on how the system works. The work was done very cleanly and Brent was very polite and tidy. We are very pleased with the installation and the recommended Braemar heater works beautifully. We also are confident that HI-Tech will be there to help us if need be in the future.

Ray Mason. Croydon Park

Stephen Hamlyn of HI-Tech send us Spartan Plumbing to install a new Braemar gas heater for our central heating system. The whole thing took only half a day . The work was done very cleanly and Greg of Spartan Plumbing was very polite and skilful. We are very pleased with the installation and the recommended Braemar heater is very tidy and works beautifully. We also are confident that HI-Tech will be there to help us if need be in the future.

Raumann Gagnon. Lane Cove North

Hi-Tech supplied our Braemar ducted gas heater to replace our existing. Just in time to warm us for winter. T-shirts inside all year round! It's a very quiet and easy to use system.
Thanks Stephen and thank you Rem (of Balmoral Air).

EJ Currie. Neutral Bay

Stephen recommended John Montgomery as an installer for our new Braemar gas heating system. John was great - very thorough and professional. We're very happy with the service- and the new system.

Shane Mattiske. Randwick

“Immediate Help!”

Would like to say Thank You to Stephen & Greg for his Immediate help with our gas ducted heating last week . It was very much appreciated.


– Martin and Margaret Warnes, NSW

Had a brivis gas heating system put in in 2016 by Hi-Tech. Their installers was a brilliant tradesman, really hard working and knew his trade well. Have had no problems with the heating system.
Since then I have had the system checked every year by Hi Tech who have been very professional and reliable. I recently had a question about a restart after the gas to my house was turned off and Hi Tech got straight back to me and solved my problem in a flash over the phone.
Very good company to deal with and good technicians.

Nicky Lowe. Thornleigh NSW

I thank Stephen for promptly attending my call and helping me to fix a programming issue for my heating system especially during the current global situation we are in. I found him to be reliable and patient in addressing the issue over the phone. Highly recommended. Thanks

Massimo Palma,

Dear Stephen
I appreciate your excellent and professional service in addition your kind and helpful attitude.
good health to you

Ernest & Rose, Terrigal NSW

Just a brief note to thank you for recommending John Montgomery as an installer for our Braemar ducted heating and cooling system. John was very prompt with his quote and fully explained the installation requirements and associated costs… …John always turned up when he said he would and always put in a good day’s work. he completed the entire installation in quick time and left the work area clean and tidy each day. we could not have been happier with the entire process. We only wish all tradesmen we’ve dealt with were as professional as John.

Paul Wagstaff, Randwick, NSW

Work was carried out promptly and efficiently. Top quality parts were used and I was more than happy with the price. Call these people if you have a problem with your home heating. I have recommended them to friends of mine and they too are very happy. Thank you.

Bevan King, Toronto, NSW

Hi-Tech Gas Services has done two large jobs for me in the past year, from quote through to installation. One was our central heating, the other a new pool heater. Both jobs were done with the utmost professionalism, starting with competitive quotes from John Montgomery. Once we accepted the quotes, the work was done quickly, efficiently and neatly (cleaning up after themselves). I would not hesitate to recommend Hi-Tech Gas Services.

Melanie America, Bellevue Hill, NSW

Stephen was terrific recently in helping us in our search for a gas heater - gives honest advice, very responsive and genuine. No hesitate in recommending Hi Tech Gas Services. Thanks.

Ben. Gladesville, NSW

To whom it may concern,
We invited John Montgomery to recommend options to install air conditioning in our home. Our invitation was based on advice from a friend that recommended John as an air conditioning engineer who would do an excellent job for us.
John designed a system for us that incorporated much of an existing ducted heating system, upgraded a lot of the ducting for cooling and installed the refrigeration system. That much was excellent but expected. However, he also designed the system to cope with the next generation of our (ageing) heating system, he resolved some issues relating to changes in the Brivis system, personally checked the configurations and commissioned the system. All on budget, all very timely and all exactly as promised.

John will fuss. He will fuss about your requirements; he will want to explain to you what he wants to build, how it should be built and how it should and how it should be configured. He will talk to you about your concerns, your requirements, and your future plans and explain how he will build your plans into his system.

If you want a quick job, with a tradesman who will install a default system and hope it works with minimum input from you, John is not your man. If you want to be confident in the job, confident it will last and cope with later configurations and system requirements, and most of all be confident that he will install what you actually need as distinct from what you think you need John comes with my highest recommendation. He is that old-style engineer who actually cares and I do not think he would install a system that you might think you want, or you have been told you want, if he knows it is not what you actually need.

In short, I’d use John again and I would not bother to seek alternative quotes or alternative advice on systems. I simply would trust John to do another outstanding job.

A.J. Pitman - Professor of Atmospheric & Climate Science, Pymble, NSW

I first heard about John Montgomery from Stephen and Andy, Andy is a very thorough and reliable serviceman who had been looking after our central heating furnace for some years. Our unit was approaching 20 years old and Andy said something like ” it was already a miracle it is still going”, and that I will soon have to think about replacing it. “if and when you do” said Andy,” get in touch with John Montgomery who is one of the best people in the business when it comes to the selection and installation of a new furnace.” And eventually I did have to get in touch with John, and I immediately realised that this bloke who came along in his work gear to inspect, advise and quote, was a hands-on tradesman who was more genuine than one would expect, knew his business backwards, and talked long and knowingly about how we could improve the efficiency of our ducting, and the best unit for our purposes. Within 48 hours we had a detailed written quote – it was an attractive price compared to my expectations. Work started a few weeks later, the whole job took about a day longer than he had stated in his quote, mainly due to unanticipated underfloor problems, but he never suggested increasing the price for the job. We now have an excellent installation, a more efficient unit, and John has been back a couple of times for some “fine tuning”. This project has been one of the most satisfactory tradesman relationships I have had in 22 years living in our present home, and I would recommend John Montgomery to anyone contemplating a new furnace installation.

Kevin Duffy, Castlecrag, NSW

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