"We arrived home from vacation and had issues with our furnace. Called Master Flow and Nick had his technician at our house the next morning! Jon identified the problem and explained the corrective measure in layman's terms. Great timely service! Master Flow leaves us with peace of mind."

- Malcolm Crowe, Kemptville ON

"Thank you Jon for your impeccable service! We much appreciated your insights and time spent servicing and checking our furnace. We have followed your suggestions and seem to have resolved our issue! Will certainly recommend, and am proud to support local!"

- Erin Sheehan-Powell, Manotick ON

"Nick & crew installed a new heat pump and air handler to replace our electric furnace. An excellent job with really nice work in the basement in very tight quarters.Highly recommended. RD."

- Robert Duncan, Manotick ON

"Calling Nick at 4:00 on a Friday afternoon with temps in the high 30's, I didn't expect a call back until Monday. However, Nick arrived at our door and fixed the problem so that we would have A/C over the weekend. Awesome service!"

- Diane Johnson, Kanata ON

"Thank's for the follow up Nick. AC is working excellent and blowing colder than ever. I really appreciate you taking the time to getting the system running at 100%. Cheers."

- Jamie Crook, Kemptville, ON

"Nick and his team were recommended to be by distributer for the new Heat Pump solution I had chosen. When the supplier recognizes quality, that was a great signal for me that Masterflow would be worth investing in. They did not disappoint! The team was efficient, organized, attentive, and professional. They get high marks from me and I will be sending more business their way. Cheers and well done!"

- Tim Connors, GP Systems, Manotick, Ontario

“The most important thing you want from any contractor is good quality work, done on time and at a fair price. You can trust Nick Katchmar and Master Flow Heating to not only do all of that, but to come up with innovative, energy efficient solutions. I know because they performed miracles during our home renos including converting a garage into an office,”

- Bruce M Firestone, Ottawa Senators founder, Century 21 Explorer Realty broker

"I hit the jackpot when I picked Master Flow Heating & AC from local suppliers listed on the Internet. Nick and crew moved some heavy ducting just in time for a new basement stairs installation, and did a 10-year inspection of my propane service - all very friendly, professionally, on time and on budget - great to have you guys nearby!"

- Tim MacKenzie, Merrickville, ON

"We were referred to Nick and his service has been excellent. Knows exactly what he's doing, is perhaps the best, if not the only, TSSA certified technician that can hook up a food truck professionally within the Ottawa region! Will definitely use him for any future endeavours! Thanks Nicholas"

- Leonardo Alvarenga, Nacho Cartel, 200 Wilbrod St. Ottawa ON

"Leon, Nick and Alex moved my entire furnace and ductwork from the middle of my basement and tucked it into a corner where we were able to frame it into a storage closet. My husband and I were finally able to reno our basement to what we wanted. Thanks a million guys! Couldn't be happier. :) "

- Jennifer Black, Kemptville, ON

"Thanks Nick for taking the time and showing me how my new furnace works and how it gets installed. I really appreciate you also letting me take part in the installation process. Its something I always wanted to know how to do and I am glad I was able to take part in this for my new home. Also you got a great group of smart young guys. All the best."

- Eitan Fine , Spencerville, ON

"Thanks for the follow up Nick. We've been flushing our heater as you have suggested every 3-4 months. The oversize drain valve you installed is working awesome. I don't anticipate having any issues any time soon. I've passed on your card to a couple of neighbours having the same types of problem.

- Kevin McConnell, Greely ON

"I would recommend Master Flow Heating & AC. I had a New AC installed they provide great service and at a fair price. I would used there services again if needed in the future!"

- Amy Tynes, Orleans ON

"We had Master Flow come by and have a few repairs done to our dryer, chimney and ductwork. What I wasn't expecting was the guys taking a few extra moments to fix my door for me. Thanks so much guys."

- Lori Hodges, Kemptville, ON

"Thanks Nick for a great job. You had to gut the whole furnace and replace it's heart (heat exchanger) and you got it right first try. Plus, you trimmed up the way it ran to where it was supposed to be, and also did another little job on it without me even asking GREAT service, truly professional. Thanks"

- Dave Wiens, Smiths Falls, ON