Delta Air Systems has been in the business of improving the quality of the environment in homes and businesses since the 1950’s. Our approach has always been to listen first –fully understanding your needs makes it simple to develop practical and cost effective furnace or air conditioning solutions. We service what we sell and sell only what we service.
Save Up to $7,100 on Qualfying Heat Pumps
Enbridge Gas has teamed up with the Canadian government and their Canada Greener Homes Grant to co-deliver the Home Efficiency Rebate Plus (HER+) program. Through this program, eligible Canadians and Enbridge customers can qualify for up to $7,100 back on eligible ENERGY STAR® certified heat pumps.
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Testimonials & Reviews
Serving Waterloo, Kitchener, Guelph, Cambridge & Surrounding area.
Based on 484 reviews
Sydney L.
21:20 21 Dec 24
Had a great experience with Delta from our initial sales meeting with Tanya, who blew us away with her knowledge and helped us make the right choice for our home, to a great install with Eric and Stephen. Would definitely recommend to anyone.
Jason P.
22:39 17 Dec 24
Delta Air just installed my new furnace, and they did a great job! The installers, Kyle and Cole, were very friendly and professional, and got it done in less time they expected to. They were quiet and didn't leave a mess afterwards. I am completely satisfied with Delta for taking care of my furnace over the years. Great company!
Rupert H.
16:47 17 Dec 24
Hot water tank blew. LiamB & Fabio arrived like a couple of plumbing super heroes and replaced with new tank. The replacement process swift and efficient. Great job guys! Delta saves the day again!
Corey B.
16:51 13 Dec 24
Braedon came over to help with our heat. Most HVAC people are nice but Braedon was super nice. He was informative and fixed our issue super easy. If you ever call Delta and get Braedon, you're in for some great service
steven B.
18:56 12 Dec 24
Liam B and Fabio installed our furnace at the church. I cannot say enough about what an excellent job they did. They arrived on time, and were finished before their estimated time of completion. They answered every question we had in a friendly manor; and when they left, the area they worked in was cleaner then when they had arrived. If someone were to ask me if there were there any problems, I would say, without hesitation, that there was not. I would highly recommend them.
Marilyn T.
01:46 12 Dec 24
Great service, very professional. Job well done. Thank you
Auburn C.
03:30 11 Dec 24
Had scheduled an appointment for servicing two gas fireplaces. Braedon was the technician. He did an excellent job in a very timely manner. Did a very thorough job and explained everything really well.Happy to find a company in town that services older fire places. They were great.
Jan and Bill W.
20:58 06 Dec 24
Called another service provider of gas fireplaces who directed us to Delta Air Systems as the only company locally that could service our make of fireplace. Breadon from Delta arrived as scheduled and quickly, competently and courteously had our problem solved and our fireplace cleaned and working like new. And all at a reasonable cost. Very impressed!
Jim F.
17:05 06 Dec 24
Delta Air Systems is a top tier HVAC contractor in the Waterloo Region area. We have just had our annual furnace maintenance completed by Delta Air Systems. We are completely satisfied with the work.Cody, the technician who performed the work is a competent, efficient, trustworthy technician. He always gives an honest, responsible answer to all questions. The work was completed as per the quotation. As mentioned we completely satisfied and will have Delta Air Systems all our future HVAC requirements. Jim F.
Monica H.
20:48 05 Dec 24
We recently had a humidifier installed in our new condo by Liam B, and Fabio. What a great experience! They arrived on time and completed the job professionally. They eagerly explained the function and answered all our questions, Liam went above and beyond by answering questions we had about our other heating and cooling components and their controls. We will continue to use Delta Air Systems because of their quality techs and friendly service advisors, Courtney and Annie.
Bob Z.
20:33 05 Dec 24
Meghan came to our home to do a warranty repair on our Lennox Furnace. She was professional, courteous and very knowledgable. She did a great job! Delta is lucky to have a Tech like Meghan on their team, Two Thumbs Up!
Tammy R.
21:49 04 Dec 24
Braedon was super helpful, professional, on time. He had the furnace up and running quickly and efficiently.Would recommend Delta Air Systems for your air system needs!!!
Tim D.
21:23 03 Dec 24
Thanks to Kevin and the Delta team Liam and Fabio for a great job installing our new Lennox Furnace. Great guys.
Elizabeth D.
14:53 03 Dec 24
Thank you Braedon!! Our furnace quit this past weekend: between talking with their emergency technician on the phone and then having Braedon come out for an inspection during regular business hours, everything has been quick, superior, professional, and transparent. Delta’s top-notch service and expertise gave us confidence and peace of mind— priceless!
Jacqueline F.
22:28 29 Nov 24
Liam B and Fabio came to our home to repair some duct work..they were very polite and very professional even placing mats down to keep our floors clean..we highly recommend
Scott A.
14:34 29 Nov 24
I have needed a few HVAC systems over the last 10 years across different houses and Delta has always come through with a competitive price and the best customer service (no exaggeration, best customer service). I was returning from a trip and went to turn up the heat in my house remotely and found that the heater had not been working. I called Delta and they were able to get a tech out same day. Turned out it was best to replace the unit. They were able to get an estimator out that night and have me scheduled in for a new furnace the following day. Incredible. Kyle and Richard were the installers and did a great job. We have heat again just in time for the colder weather.I recommend Delta to all my family and friends over the years who have needed HVAC help and they have all said the same thing about the great customer service. It's what sets them apart.
Roby F.
14:27 27 Nov 24
Tanya was informative, knowledgeable and honest. Our in-laws use Delta as well for inspections and a new installation. Would use again. Middle range price point, imo, because we also got higher and lower quotes.
Brian G.
13:37 27 Nov 24
Excellent service, start to finish. We had some codes come up on our thermostat and our furnace was not heating properly. Based on positive reviews, I contacted Delta Air Systems for diagnosis. The technician, Tyler, arrived that same day and spent time assessing the unit and explaining the process as I watched.The furnace was 18 years old and required substantial repair. I was provided an estimate for repair and also the option of replacing the unit. We opted to replace.Our salesperson, Tanya, arrived that same evening and discussed our needs. No up selling and no pushiness. We received quotes the very next morning ranging from value, good, better and best. Tanya explained the process in detail and we had a clear understanding of what option best met our needs Tanya was there to answer all of our questions along the way and ensure our needs were met.We made our selection, and the installation team of Kyle and Richard arrived the next day. Kyle and Richard were friendly and highly competent. They laid down a runner to protect our floors and got straight to work removing the old unit and installing the new furnace. Our requirements were to have a new thermostat installed which would work with the existing humidifier, furnace and AC. The team ran into some snags getting the humidifier thermostat control set up but handled it like true pros and got it all working beautifully. They took the time to address any questions and Kyle showed me the work that was done on the installation. Kyle went above and beyond with the workmanship on the job, ensuring extra drains were in place to divert any condensation and to increase the service life of the unit as well as cleaning up some sloppy adjacent work from the previous installation. Once everything was explained, Kyle and Richard cleaned up and left the place spotless. I highly recommend Delta for HVAC needs and will be using them from here on out as well as recommending to friends and family. An excellent family run local business who does not sub-contract their work and operating with honesty and integrity. A rarity these days.
Monika M.
20:53 26 Nov 24
New to Kitchener area and my first experience with Delta Air. Cannot say enough about the entire team that helped me out. Huge compliments go out to Megan the technician, Tanya who provided the quote, and of course huge thank you to Liam B and Fabio. This team provided professional service along with great helpful information in a very friendly and timely manner. Liam and Fabio did an amazing job with the install and took great care of my home as they wielded large furnace pieces through my small home. I would highly recommend Delta Air Systems to anyone for sure. Thank you everyone for making this such a great experience.
Kevin H.
20:56 25 Nov 24
Just had a new furnace installed by Steve & Cole. The initial quote was fair, all-inclusive, and without any upselling or unexpected additions. The install itself was clean and professional, and they were happy to answer any questions I had along the way, even those not directly related to the install. No regrets, and will happily call Delta first should I need anything in the future.
Lj R
04:00 22 Nov 24
I am very pleased with Steve and Cole who installed new furnace at my home.Everything was explained to me and done very professionaly.Thank you guys and company should be proud having you as emplyee. Also Jamie gave me decent quote and he was very trustworthy and friendly.
Vivienne E.
18:54 19 Nov 24
We just had Kyle and Richard here to install an air exchanger. Very polite and helpful when we asked questions. They explained the unit when they were done; how it worked and a few things to change if we needed to. Based on three work I certainly would not hesitate to recommend either of them to do work in any home.
Andrea D.
16:58 19 Nov 24
Had Delta in to finish some work another company was unable to complete. They were able to come in a very timely manner, completed the work beyond our expectations and were extremely clean and efficient. Would definitely recommend and would definitely use Delta Air Systems again!
Faisal A.
01:16 19 Nov 24
I recently had to replace the furnace in my home and decided to go with Delta for the job. The experience has been excellent.The initial consultation with Matt was pleasant and thorough. I received several options with competitive quotes and was able to pick the one that best suited my needs and budget. Tammy coordinated the installation quickly. The installation process itself was fantastic. The crew, Kyle and Richard, showed up right on time and were able to finish up everything in about 5 hours: old furnace was taken out, new furnace put in, and the work area was cleaned up. They were very professional and courteous all throughout.I would highly recommend Delta to anyone.
Matt and Roxanna W.
19:07 15 Nov 24
We had a heat pump installed by Liam B and Fabio - great service, very hard working and explained the new system to us very clearly. Took the time to ensure the job was done right and done well.
Peter A.
12:37 15 Nov 24
Third time using Delta over the last 22 years for two furnaces and one AC. Always friendly, do great installs, excellent clean up and no surprises.
Jodie W.
19:42 12 Nov 24
Braedon was great today- helpful and courteous. Thanks for great service!
Josée C.
23:18 05 Nov 24
Liam B and Fabio from Delta Air Systems were a dynamic duo! Work was done in a timely fashion and both were professional and took the time to explain how our new furnace and thermostat worked. Jason also helped troubleshoot an old existing duct problem and efficiently worked his way through our home until he found the problem. We highly recommend Delta Air Systems for the quality of their work/competitive pricing/and communication. A+
Marg D.
20:54 05 Nov 24
We had our furnace serviced by Braedon on November 5th. He was prompt, courteous and thorough. He provided us feedback on the care of our furnace. We have used Delta for a number of years and have been pleased with their service.
Laurie T.
19:35 01 Nov 24
Liam B was very friendly and clearly explained the system we had installed. He even fixed another issue he found while he was working. Showed up on time and quickly became friends with my yappy dog! Great experience with Delta all around.
Daniel K.
17:42 29 Oct 24
I had Tyler here last week to provide a maintenance check on our Carrier boiler furnace and attend to a problem with our direct vent fireplace. Tyler was extremely helpful and explained in detail every aspect of his visit, providing technical information as he diagnosed the fireplace problem. A co-op student accompanied Tyler on the visit and it was duly noted that he was treated with respect and provided with useful insights and helpful hints while he worked along with Tyler. I will be calling Delta from here on in, and asking for Tyler by name. Very impressed by this service call.
Sue J.
17:21 25 Oct 24
My husband, Brian, can't stop saying amazing things about Braedon! He says that he never writes (gets me to write! 🙄) reviews but Braedon would get an 11/10!! He has great suggestions, we talked about it and he was efficient.
David R.
13:06 24 Oct 24
Delta Air Systems , Waterloo Ontario recently supplied AND installed our new water heater. From quoting to installation, everything was prompt, professional and done with care.
Team L.
00:26 23 Oct 24
Always great service
Martin K.
22:48 22 Oct 24
Had an Annual Service done on my Furnace/Heatpump combo. Braedon was on time and excellent.
Yury S.
01:17 20 Oct 24
We recently had a great experience with Delta Air Systems in replacing our old furnace and AC.Everything from start to finish was smooth and well done. Tanya was very professional with providing and explaining various options and features. Communicating with her was a pleasure, there was no pressure at all. She was open to answer any questions on the matter even on weekend days.The installation crew (Liam B. and Fabio) did an excellent job of removing the old furnace and AC and installing the new units. They were professional, friendly, and knowledgeable, providing information about the work done and helpful tips on taking care of the installed equipment.Finally, Tammy registered the equipment with the manufacturer and sent the invoice allowing a convenient option to pay in two installments.We highly recommend Delta Air Systems to our friends, neighbors, and others.Yury & Alena
Chris S.
16:57 18 Oct 24
Our experience with Delta Air Systems was excellent. From the moment Liam and Fabio arrived, they were professional, quick, and friendly. They explained everything about our new furnace and thermostat. Finally, they left the house cleaner than when they got there. Highly recommend them and thanks again to Liam and Fabio for being so professional.
George S.
19:23 17 Oct 24
I am pleased with Delta's service and expertise . Their HVAC service tech ''Braedon '' provided us with fast, friendly and reliable service. Thanks
Bill R.
23:08 09 Oct 24
Furnace inspection, done, professionally and on time as requested thank you
Terry K.
04:15 09 Oct 24
We were pleased with the service of Delta Air Services. They installed a new furnace and AC unit so quickly. We were so please with Richard and Kyle's expertise. They were also very polite and courteous. They had done the install with little disruption to the household. By mid-day the furnace was operation and running overnight. We are so happy with the service from Delta Air Systems.
Wayne G.
22:14 08 Oct 24
While exploring vendors for gas fireplace services it was clear that Delta Air Systems were up front and honest by displaying a price and stated the services provided for that price. This carried all the way through to the Service Dept that confirmed same. From the person who answer the phone/ service adviser/ to service person there seemed to be an excellent customer service culture in this company. Braedon the tech who came out, listened to what i told him about currentStatus of fireplace and went about his work efficiently. I was called into room for the Final adjustments on flame, testing of remote and general cleanliness to insure satisfaction.I would highly recommend Delta Air System - Great Job Braedon Thanks
Dana F.
17:05 07 Oct 24
Found the problem in minutes. Very thorough clean and polite. Super happy with the call.
Daniel L.
16:56 01 Oct 24
Braedon provided excellent service fixing clogged condensation line
Jennisha W.
20:20 26 Sep 24
I recently had my AC unit replaced by Delta Air Systems Ltd. there team (Liam B and Fabio) did an amazing job at answering all questions, providing updates through the process and providing an post installation overview of what they did and what we should know to care for our new AC unit. Many thanks for your great work.
Karim M.
14:32 24 Sep 24
We had an air conditioner installed recently by Delta. The installers Kyle & Liam were great guys, did the job efficiently and left our place neat and tidy. Good work!
Linda L.
00:38 24 Sep 24
Thank you Liam B. Fabio and Kyle R. For a great installation of my furnace and A/C. They went above and beyond. Friendly, knowledgeable, and helpful. Explained everything and answered my questions . Thank you
Paul W.
23:54 19 Sep 24
We were very happy with the furnace installation. After accepting the quote, they came the following day and did the work. They were very professional, cleaned everything up well, and explained how everything worked. Arthur and Andre were great!
Colleen B
19:49 19 Sep 24
Excellent customer service at Delta Air Systems! When calling in, Courtney is always friendly and very helpful. The service technician, Braedon has been to our home a few times now and we couldn't ask for a better person to help us with our needs. Thank you!
Delta Air Systems Furnace, Air Conditioning, Ductless HVAC repair and services in Kitchener, Waterloo, Cambridge and Guelph. Get comfortable for less!
Delta Air Systems has been in the business of improving the quality of the environment in homes and businesses since the 1950’s. Our approach has always been to listen first –fully understanding your needs makes it simple to develop practical and cost effective furnace or air conditioning solutions. We service what we sell and sell only what we service. That’s why we deal only with the top brand names in the industry – Lennox. Heating, Cooling, Air Conditioners, Furnaces, Fireplaces & More. Established HVAC manufacturers with products that are certified, tested and approved and come with the best warranties in the business. Delta Air Systems has passed the Lennox Quality Dealer Standards Program. It is a commitment to excellence through top quality customer service consistent in all participating independent dealers. If your looking for furnace or air conditioning service, repair or replacement in Kitchener-Waterloo, Guelph or Cambridge areas look no further than Delta Air Systems.
We service what we sell and sell only what we service. That’s why we deal only with the top brand names in the industry. Established manufacturers with products that are certified, tested and approved. Furnace, heat pumps and heating repair, replacement, installation and servicing in Kitchener-Waterloo, Cambridge & Guelph. Call us to discuss GreenOn rebates and incentives programs. You could be eligible to save ALOT!