Testimonials & Reviews From Our Customers

Dave in Kitchener

★★★★★
5 5 1
From the quote to the completion of our renovations, Delta was a dream to work with. Jason, who provided our quote, was courteous and knowledgeable. Not only did he look over the duct work and gas lines, he answered questions about our fireplace, windows, and plumbing system, and he gave us the names and numbers of reputable companies who could help us in areas that Delta couldn't (ie. windows). He then offered to expand a portion of our venting system for optimal airflow and to replace certain gas valves that were no longer up to code. The quotes we received from other companies also admitted these valves weren't up to code, but then they shrugged and said they were probably fine anyway, whereas Delta agreed to replace them at no additional cost. Steve and Sean performed our renovations, assisted by a trainee whose name I didn't catch (sorry). They completed every detail Jason and I agreed upon, replacing valves, venting, and installing our new furnace and air conditioner all in one day. I've had trouble with contractors in the past showing up drunk or doing shoddy work, but these guys were fantastic. They arrived on time and worked hard, taking only a short break for lunch. They cleaned everything up before they left, and Steve stayed behind to explain the work they did and how to use and take care of our new HVAC system. I would wholeheartedly recommend these guys to anyone looking to replace their furnace or AC unit. Never in my life has a renovation gone so smoothly.

Job in Kitchener

★★★★★
5 5 1
My daughter suffers from hyperacusis causing normal sounds to be multiplied 50 fold. We went through 3 different companies, all who promised they had the answer by installing their furnace. Well, 4 furnaces later and 2 years of misery and we were still no further ahead trying to find a furnace who's sound didn't make my daughter ill. We were to the point of selling the house. Researching “on line” reviews led me to Delta Air Systems. I called the company and explained the situation to the receptionist. She put me through to Calvin (the owner) who immediately said he understood my problem, having run into this situation prior. He suggested I drop by the office and he would explain what he could do. Upon arriving Calvin explained how the new ECM motors were the cause of my daughter's sensitivity to the sound. He suggested using a PSC motor. He introduced me to Tyler who would design a new system that would accommodate a PSC motor. Calvin came to my daughter’s home and inspected the existing system. He did a static pressure tests and balanced the system to improve circulation. He then had Kevin come to the house to inspect and measure the existing duct work. Kevin explained that the plenums and ducts were the original from the old oil furnace and needed some adjustments to better handle the air force of newer furnaces. He showed me how previous installers had simply modified a few areas in order to make their furnaces fit. He also suggested how to improve on the cold air returns. Steve and his crew arrived on time and went right to work installing the new system. Steve (the crew captain) explained every detail they were performing and answered all questions. They completed the installation professionally and cleaned up afterwards. Both Calvin and Kevin dropped by during the install. They also called me several times to check if I had any questions. The system was turned on and to my daughter's delight, it was perfect. Calvin came by and took the time to explain to her what they had done and how the new system (that they virtually built) works. We now have a system that my daughter can live in the same house with and it performs better that any of the previous systems installed. There is a definite improvement to the air circulation. No other company was able to figure it out. All they were interested in was selling me a furnace then walked away after they got paid. I can't thank Calvin and his staff enough for what they were able to do. As Calvin told me' "There's a reason why we are called Delta Air Systems".

Harold in Kitchener

★★★★★
5 5 1
Recently we had Delta Air Systems install Lennox furnace & air conditioning units. Our 22 year-old system was originally installed by Delta Air; we were very satisfied with their service. When our A/C system crashed we naturally went back to the original supplier. We got prompt attention to our needs and a proposal to fit our budget. On the day of installation a crew of three arrived, they were courteous and efficient. The old equipment was quickly dismantled and removed. It was impressive to see the installation's progress, obviously the crew were were well trained and good at their jobs. Within the day the new system was set up and tested. We have no reservation in unconditionally recommending Delta Air Systems for your heating and air conditioning needs.

Stephen in Waterloo

★★★★★
5 5 1
I recently had a new high-efficiency furnace and ductless air conditioner installed by Delta in my older (~120 years) home in Kitchener a few months ago. The home had not previously had air conditioning, and the ductwork had obviously been retrofitted into the home sometime long after its original construction date, so it was not suited to a typical ducted air conditioner. I opted for Delta because the salesman Scott took the time to explain why a ductless air conditioner might be a good solution for the home. I was familiar with the technology but, even after bringing it up to other HVAC installers who quoted me for systems, I was told that a typical air conditioner would be “good enough” and, anyway, cheaper. Scott went through the principles of it without overwhelming me with information, and explained the reasons why I was likely to be more satisfied with a ductless unit. He also explained the different options of furnace and gave me enough information that I could reasonably weigh the costs and advantages of each choice. The unit installed wound up being a 1.5 ton Daikin ductless air conditioner and heat pump on the second floor of my home, and a forced-air two-stage Daikin furnace. The installation required two days, and I found Dale and his partner extremely professional and courteous. I met them the first morning and they explained to me exactly what their plan was, and where and when they would require access. Dale spoke with me about the different options for the specific location of the air conditioner’s line, his requirements and my preferences, and he was able to run the line entirely out of sight in two upstairs closets. I’m also pleased with the performance of the air conditioner so far. As in other older homes, our challenge has been to keep the upstairs cool while the first floor is usually very comfortable. The ductless unit blows right where we need the cool air most on the bedroom level, and falls towards the main floor. We’ve found so far this summer that using a mix of the unit’s ‘Air Condition’ and ‘Dehumidy’ functions, along with the furnace fan, keeps the entire house very comfortable. Testing the heat pump function of the unit, I expect to be able to use it for supplement heat during the night in winter, when in past winters we’ve used a space heater to help with extra heat in the kids’ rooms. Overall I was very satisfied with the work Delta did, and very happy I went with a more appropriate solution for my home’s cooling than what a lot of other suppliers would have been happy to install. It was not the cheapest option, but I feel that the outcome was what I had hoped. I would definitely seek Delta out next time I need HVAC work done.

Nicole in Cambridge

★★★★★
5 5 1
Scott made the best recommendations for our home built 1925 with no cold air return from the top floor. Scott was great to deal with and when the installation team came in they were polite, clean and quick. The unit works as promised and looks clean and tidy.

Regent in Cambridge

★★★★★
5 5 1
We have purchased two complete services (Heating & Cooling Systems) from Delta Air Systems Ltd., throughout the years. The service was exceptionally professional, from the start to finish, from all personnel at Delta Air, even to the point of personnel removing their foot ware when entering our home, and not leaving until the sweeping was done. Heating and Cooling Systems are a major investment for any homeowner and like any major investments; it must be taken very seriously. A bad decision can be disastrous, with serious consequences resulting in unexpected additional costs. In conclusion, Delta Air Systems met and exceeded our expectation and we strongly recommend their services. Thank you Delta Air for your full evaluation of our exact needs and fulfilling our requirements. Regent & Sandy

Courteous and Respectful

★★★★★
5 5 1
Delta's furnace installers were exceptionally courteous and respectful. They kept my house very clean throughout installation. Would absolutely recommend them.

AMAZING SERVICE

★★★★★
5 5 1
Our furnace quit working on a Saturday. Having been lucky enough never to have a break down on the weekend, I wasn't sure who to call. I called Delta after reviewing different companies on the internet and left a message on a voicemail. I thought to myself I'd be lucky to get a call back on the same day. Much to my surprise I received a call back within 10 minutes from Ryan. Ryan was excellent over the phone and it was very evident that he really cared that our furnace had just died on a Saturday. He diagnosed the problem over the phone and was able to rectify the issue. I was truly impressed with the level of service. Delta has earned a new life long customer.

Paige in Toronto

★★★★★
5 5 1
My mom's a/c stopped working on the hottest w/e of the year, of course! Got in touch with Delta and a Technician came out the same day! The problem was assessed, and fixed later that day. We are very impressed with the timely, courteous and professional manner that this was handled by everyone involved. Would definitely recommend Delta to anyone in need.

Andy

★★★★★
5 5 1
During one of the few hot spells of the Summer, our aging air conditioner gave up. Jason from Delta was prompt in responding to our call, punctual on meeting when he said he would be there and knowledgeable to help us navigate the balance between available rebates, energy efficiency and simply getting the right unit to meet the needs of our home. Jason even provided a hand drawing to describe the work to help us better understand what to expect. Delta also assisted in replacing some shoddy DIY work that had been previously done and needed a professional touch. The installation with Matt and Shawn went smoothly and was very tidy with nothing left for us to do but turn on the new unit and enjoy the cool temperatures. Thank you to the team at Delta for your excellent communication and professionalism.

Beth Hanson in Markham

★★★★★
5 5 1
I called Delta after our air conditioning unit stopped working in July 2017. Jason was quick to visit my home, evaluate options to upgrade both our furnace and air conditioning units and provided a very detailed quote with two manufacturers and their rebate options. We opted for a New Lennox system and it was installed by Scott in a period of two days. The installers took away all old equipment and garbage, kept the worksite clean during and after installation and gave me a thorough tutorial on how to use the new systems. I would highly recommend Delta. Jason was awesome during the process of determining which system to proceed with and always available to answer questions by phone when required. Jason even re-visited the site to inspect the installation once complete. Top-notch job by the whole team involved.

Jane Venugopal in Burlington

★★★★★
5 5 1
Justin came today to inspect my heating and cooling system. He was very efficient and thorough and explained everything to me. He was very kind to my grandkids, and even disposed of a dead mouse for me.

Andrea in Toronto

★★★★★
5 5 1
Highly recommend this company to anyone seeking install of a new furnace, air conditioner or service of an existing unit. Our relationship with Delta started when our furnace broke. We contacted the company who installed the furnace, and they advised we needed an entire new unit. After calling Delta for a second opinion (based on Word of Mouth recommendation), the owner of the company, Calvin, called us to advise the unit was still under warranty and dispatched a technician for repair immediately. When we were ready to install an air conditioner, we did not hesitate calling Delta Air systems. Spencer came to our house, and gave us three quotes. He was very thorough and knowledgeable, and was able to answer all of our questions. As an air conditioner is a large investment for anybody, we wanted to make sure we understood and we're getting the right unit. There was no pressure, and we took a day to decide on what we wanted. The installation happened on the day as scheduled, and Dale and Matt arrive to install at the exact time we were told. They were both very friendly and explained all the work that was going to be done. When extra noise was going to be made, Dale came upstairs to let me know as we have a newborn in the house. I thought this was very courteous. After all the work was done, they gave me a complete tour and explained everything, leaving me with no questions to ask. The unit on the exterior of the house looks great, and all wires and cables are neat and tidy. It's obvious that they are both very experienced and knew exactly what they were doing. So far I was completely satisfied, but what happened next blew my mind. Dale rewired our furnace to ensure that it ran more efficiently, and even fixed the furnace humidifier that we thought was completely shot. He labelled everything for us and organized all of our booklets and paperwork in a document holder right on the furnace ductwork so it's easy to find. Not to mention, all this extra work was done at no extra charge to us. It's really refreshing to work with people who actually care about the clients and want the best for them! We aren't just another air conditioner sale, we are a family that Delta wants the best for. With a newborn child, it is great to now have peace of mind that the climate in our house is controlled and appropriate for good health. Thank you so much to Spencer, Dale and Matt at Delta Air systems for your amazing service, caring attitude, knowledge and time. It's great being a customer of a company that is family owned, as opposed to a mega-corporation who only cares about the bottom line and a new sale. We will definitely recommend you to anyone! Now bring on those crazy-humid days in July!

Need 10 more stars!

★★★★★
5 5 1
Wish there were 10 more stars we could check off for the folks at this company. From our initial in home consult with Spencer to the installation team headed by Steve (all of whom had to work hard together to plan and install not only a furnace humidifier but upgrades/rebuilding of parts of our older furnace to both accommodate the new piece of equipment plus update things for a new furnace down the road) and the office staff too....each and every one of them were amazingly friendly, helpful and knowledgeable people who went well beyond the norm in leaving us with a top quality job done and a sparkling clean furnace room at the end. SO satisfying to find a company that not only takes pride in its work but also genuinely cares about its customers' satisfaction. Thanks all!

Kari Feldmann

★★★★★
5 5 1
I called Delta Air Systems for a technician to check and fix my furnace when it wasn't working properly during a cold spell. The technician came at the time they said, and quickly diagnosed the problem. Unfortunately, the furnace had two major components failed and wasn't cost effective to fix. Delta sent a sales person that evening, who spent the time needed to go over all the options, and walked me through the process to choose the right equipment for me, with no pressure. The installation was scheduled for two business days later. Delta offered to lend as many space heaters as I needed until the furnace was replaced. The installers were professional, didn't cut corners, and did a neat job. After, they made sure I understood how everything works. The sales person followed up a few days later to ask if I have any questions and make sure everything was working property. Overall, it was an excellent experience, and I am extremely satisfied with the professionalism and workmanship.

Jenna Godwin

★★★★★
5 5 1
After 18 years of serving us well! Our furnace gave up during the recent deep freeze! Naturally this had to be dealt with immediately! Kelvin and his team (Jason and the technician team) sprang into action! My new energy efficient furnace was installed the next day! Thank you for taking care of this so quickly, efficiently and professionally! Also- my family has used the services of Delta for the past 15 years. We have never been disappointed!

Kevin Walker

★★★★★
5 5 1
I had them replace my A/C unit when it died. They were very professional (both the installers and sales/business people) and ready to work with me to make sure I was happy. When my furnace died a year later, I also called them. They were not the cheapest quote I got, but close. I felt the extra money was well spent because they did a beautiful job. No regrets working with them. Great service. I plan to have them do my water heater in the near future, too.

Robert Elliott

★★★★★
5 5 1
Several months ago we had DELTA AIR SYSTEMS quote on a home heating, humidification and inspection project in our recently purchased mid-century modern bungalow. From the beginning DELTA provided "on time, on budget" service as well as first rate professional workmanship during the installation. The people were great to work with as they not only talk the talk...they walk the walk. We highly recommend DELTA if you are considering an HVAC project. After all, purchases of this type are typically high dollar investments and demand "word of mouth referral" to safeguard your purchase. Wayne and Deborah in Waterloo

Drew Ripley

★★★★★
5 5 1
Very professional and fast installation of some very difficult basement duct work where space was very limited. They completed the task in less time then expected, and we still manged to keep our bulk heads tight maintaning a useful ceiling height. Built to code and to satisfaction.

Drew Ripley

★★★★★
5 5 1
Very professional and fast installation of some very difficult basement duct work where space was very limited. They completed the task in less time then expected, and we still manged to keep our bulk heads tight maintaning a useful ceiling height. Built to code and to satisfaction.

Robert K

★★★★☆
4 5 1
Great professional service, been dealing with them for years and have referred many customers to them. I highly recommend dealing with Delta Air for all your heating and cooling needs.
Testimonials & Reviews Overall rating: ★★★★★ 4.9 based on 158 reviews
5 1

Air Conditioner Installation, Service, Repair & Replacement from Delta Air Systems

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. Delta Air Systems has passed the Lennox Quality Dealer Standards Program and is a certified Daikin Comfort Pro. 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 look no further than Delta Air Systems.

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 – Daikin and Lennox. 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 and is a certified Daikin Comfort Pro. 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 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.

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