Client Testimonials & Google Reviews

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Servicing Hamilton and surrounding areas including Burlington, Oakville, Waterdown, Stoney Creek, Dundas, Grimsby and Winona.

Real Client Testimonials

“We used Gas Fitter Complete HVAC Service for a HVAC project last year. From the workmanship and installation process to scheduling and after project service. Simply Outstanding. We would highly recommend them.”

“My wife and I both thank you. Great job. Real Pros. Gas Fitter HVAC Service replaced our furnace and A/C this year. Could not be more happy. Highly recommend calling Greg before you do anything.”


“Saved us from the baking summer heat. Very professional and polite. Guys came when they said they were going to come. They really worked fast and cleaned it all up. So nice! Thank you so much for keeping us cool.”


Great service at very reasonable cost. We have used Gregorio on three occasions; to install an outdoor gas line for our BBQ; install a hot water heater and replaced venting to code and also recently when we bought a new gas stove. No messing around straight forward and honest. Highly recommend this business.


We have constantly been doing home renovations during the past couple of years and our biggest frustration has been hiring a contractor or tradesperson, just to have them not show up. Gregorio is definitely a breathe of fresh air and is the epitome of customer service and professionalism. Highly recommend!


Gregorio put in a new AC unit, furnace, duct lines and ran gas lines to two gas stoves and two gas dryers at my house in Dundas. I was very impressed with his service. He was always on time and very professional. Everything he installed has been working perfectly and I’ll definitely be using him again in the future.


Everything about Greg is excellent. From attitude to amazing work. He did an amazing job at my house with great price. He is the guy to go to for all your Hvac works


Awesome service and quality installation. Would recommend for any job from simple gas line install to the largest and most complex jobs.


Gregorio ran a stove and bbq gas line, came up with solutions to avoid the finished basement. Would definitely use again.


Where to start off… Greg was incredible to work with. He made us feel very comfortable and at ease with the work that needed to be done. Not only did Greg complete the work he originally came for,he was able to locate gas leaks within the house and fixed them right away. He was very helpful and knowledgeable also got the work done fast it truly was an amazing experience. Thank You!


I recently had some intricate work done – (duct and furnace). Greg was extremely confident and knew exactly what was required to be done within minutes of assessing my repairs, pricing was very very fair, I would say this guy knows his trade to a tee – barnone, thank you so much Greg, gasfittermaster!


Emergency furnace repacement made easy? This is the place. My old 70’s furnace (maybe older) finally died, and based on what Reliance told me, I’d have to practically mortgage my house to replace it. Thankyou Greg.. for bringing me warmth and not breaking the bank. A pleasant surprise is always welcome in the middle of a crisis.. I would recommend Greg to everyone I know.


Gas Fitter install and do the maintenance on the Furnaces and Hot Water tanks of our Commercial & Residential property. The service and price are excellent, Greg the owner and technician is very professional and dedicated to quality service with a smile. Great guy, great services!


Explains everything clearly, gives you options and gets it done. We purchased our central a/c unit from him last year and we are getting him back to put in our water heater and fireplace in our newly renovated basement. My husband says he is an excellent tradesman that knows his craft. He calls Gregorio his “go to” guy whenever we need gas service.


Greg was extremely easy to work with, friendly, and affordable. We had him run a new line for a gas stove in our 1880s house downtown Hamilton. He did a very clean job and found solutions for a challenging line placement that had to run the entire length of the basement. We would absolutely hire Greg again!


Greg and his team were fantastic! They scheduled us in within 24 hours and did a great job replacing an old regulator and capping an unused line. Friendly, thorough and fairly priced. Thank you!.”


Greg installed a new furnace for me right away, as we woke up with no heat. Great prices, very fast, kind and considerate. I will recommend this man to everyone!


Greg and Shane installed and relocated a brand new air conditioning unit at my home. It was a miserable rainly day and they worked straight through and kept such positive vibes. Thanky again!!


Very quick and professional service.
I will definitely call Gregorio next time I need any type of JvAC or gas servicing


I’ve used Gas Fitter on a couple of occasions; once to install an outdoor gas line, and recently to troubleshoot my AC unit. Prompt, professional and affordable service each time.


Top notch service. Clean work. If your not happy he’s not happy…would highly recommend to anyone.


I was very fortunate to have found Greg, as we were in a crunch. We ended up with a gas leak in our kitchen the week before Thanksgiving weekend, and Greg fit me into his very busy schedule, as this was a small job. He was so friendly and helpful, and he took the time to find a way to fix the gas line that goes into our stove. It was a difficult task, as it was kinked and there was not much line to work with, but he did it, and we are so very grateful for his honesty & trustworthiness. We would definitely have Greg back again!!! Thanks so much Greg.


Gas Fitter HVAC services surpasses the status quo by going to the next level in communication. Honest and upfront job quotes and straight forward time line estimations give you a reality check that set Gas Fitter apart from the industry standards. From product selection to duct work installation, Gas Fitter is the complete package for any HVAC project.


After struggling to find someone who understood old homes we came across Gregorio and could not be happier we went with him. Gregorio took on our complete home overhaul, planning, designing, installing and finishing an entire hvac system in our 140 year old home. Gregorio was creative, thoughtful and meticulous in creating an efficient system in our new open concept floor plan. Gregorio also designed and installed our natural gas system to serve our boiler, stove, fireplace, BBQ and more. Gregorio is one of the most hard working and dedicated contractors we have come across and he stands by his work 100%. So pleased with Gas Fitter and Gregorio!


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Gas Fitter Complete HVAC Service

Servicing Hamilton and surrounding areas including Burlington, Oakville, Waterdown, Stoney Creek, Dundas, Grimsby and Winona.