Mini Split Heating and Cooling Systems
Every home has its own needs. For some, a window air conditioner is the answer; for others it’s a central air unit. But for other people, neither is the answer. Perhaps the home has no ducting, or the cost of a ducted central air seems unnecessary. In steps the mini split (ductless) solution.
Introducing ductless, or mini-split air conditioners. Mini split systems rely on an outdoor unit and anywhere from one to eight indoor modules that are connected by hidden pipes. The system is both effective and energy-efficient.
Contact Delta Air Systems about mini split heating and cooling systems. We’ll apply the same disciplined right sizing approach to specifying your equipment needs.
Lennox Mini Splits
When only certain rooms need heating and cooling, Lennox® Ductless Mini-Split heat pumps and air conditioners provide a smart, flexible solution.
Daikin Mini Splits
If you are looking for a high performance, energy efficient and quiet heating and/or cooling system, consider a Daikin mini split system.
Mitsubishi Mini Splits
Easy to install and maintain, Mitsubishi mini-split ACs and heat pumps are available in single zone systems up to 5 zone systems.
Contact Delta Air Systems for a free quote!
We will provide you with a free estimate of your replacement equipment and provide recommendations and proven solutions based on your needs. Our experts will be pleased to answer any questions or concerns you may have in a friendly, productive, and professional manner.
Fill out the form below and one of our home comfort advisors will contact you shortly.
Read our reviews and see why we’re Kitchener-Waterloo’s most trusted mini-split installation and service provider.
Based on 504 reviews
Karim K.
17:33 21 Feb 25
We had been renting our furnace and air conditioner from a different well known home comfort company for 10 years and had finally decided it was time to get out of the rental game and buy a new furnace and air conditioner. So we reached out to the home comfort company that we had been a customer of for the 10 years and asked them what we would need to do to terminate our rental contract and instead purchase a new furnace and a/c system from THEM. They told us that someone would get back to us within 3 days to discuss further. The three days passed, and then 3 weeks passed and finally when 3 months had passed without hearing back from them, we decided they did not want to retain us as customers and looked for another company in town.That other company ended up being Delta Air Systems. We submitted a form online and within an hour, Jamie from Delta Air reached out to us to discuss further. From there it was nothing but very pleasant and helpful calls and email exchanges where Jamie helped us choose the perfect Lennox system. Not only did we get exceptional Lennox quality, but Jamie also helped us choose a quality system that met our budget and price range.Once we finalized on the system we wanted, the Delta Air install department then arranged to have the system installed on the day that we wanted. We subsequently decided to change the install date, and once again the install department was very accommodating and set up the new date for us right away.The weekend prior to the install date we had a massive snow storm and we were certain that Delta Air would either not be able to do the install on our preferred date or would end up putting in the furnace but not the a/c given how cold it was and how much snow was on the ground. But no, that is not what happened.Eric B. and Stephen were the two installers that Delta Air sent out and they were fantastic. Both Eric and Stephen were very professional and pleasant. They were also very hard working and just kept on chugging even though it was so cold and awful outside. On day 1 of the install, Eric and Stephen took out the rental furnace and put it in the garage. Then they took time and care to install our new wonderful Lennox furnace along with the smart thermostat that we wanted. By the end of day 1 our house was nice and toasty with no hiccups.Day 2 was extra cold outside but again, Eric B. and Stephen arrived early and got right to work on the a/c. The old rental a/c was dug out of the snow and in the garage within a few hours and then once again Eric and Stephen took time and care to install our new Lennox a/c even though it was just brutal outside. And just like day 1, they were completely professional and pleasant about it.All in all our experience with Delta Systems was excellent from beginning to end. Thank you to Jamie, Eric B., Stephen and the wonderful people at the Delta Air install department for a very easy and hassle free experience.
Chris Q.
15:56 20 Feb 25
Braedon, did a great job repairing our furnace quickly. Very professional. Thank you!
Kathy K
02:17 20 Feb 25
Quick service. Addressed the root cause of 3 separate problems, and ensured everything was working perfectly before leaving. Very pleased.
青州川先生
03:22 14 Feb 25
Those guys are simply awesome! I wish they can go full service and I will let them take care of everything in my house.My 18 year old furnace finally decided to retire on the first Sunday of Feb when it was really cold and I have young kids. I immediately called four local reputable home heating contractors, including Costco and Delta (It ends up Costco is using Delta, so three). Jamie Hann is the sales person who answered my phone. I ended up deciding to replacing both furnace and AC as a bundle. He provided me options from budget to performance, and was able to educate me the key difference. He was so patient and made tons of quotes for me and also promised me to get the furnace in on Tuesday if I can make the decision before Monday night. Once I decided what I want, I asked all three contractors to quote. Delta ended being 1k+ cheaper than the other guys, which made me a bit worry about the quality of the service.I took a leap of faith and I got a Luxes for the price of a Toyota. My installers are Eric and Stephen. They are nice and patient and answers all my questions. The craftsmanship is supreme. After the installation, the unit fits in as if it were the original. Everything is perfectly measured. No tape at all. They used thick mat for all metal sheet connections not only providing better seal but also absorb vibrations. The way piping, joints and wiring layout are not only functional but also ecstatic. Here comes the bonus - they install a unit so that my HVAC and humidifier talk to the thermostat too. I don't need to manually turn down the humidifier when it is too cold outside to prevent sweat inside of the glass panel. The HVAC will kick in when furnace is up and running to better circulate the air in home. The market value of this unit is about 200 bucks. I never ask for it, it was not in the original quote as a separated item, but I got it with no cost because Delta considers it as part of the "bundle". The system is now truly smart and does everything for me. The furnace Jamie recommended exceeds my expectations too. Now my home is more evenly heated. It is much better than my 18 year old veteran.It is too early to talk about AC I will edit as summer comes.After the installation is done, Eric and Stephen cleaned my basement for any debris. I can't be more happy about it!
Annette B.
21:28 12 Feb 25
Being a realtor for 45 years, you meet many trades people along the way I always feel treat people the way you would want to be treated and Delta Air Systems Install Department I would recommend them to anyone over some of the fly-by-night companies, courteous on time and knowledgable all in one. This is not a paid post, but it is sincere.
phil C.
20:33 12 Feb 25
Liam B and Fabio just completed the replacement of my 25 year old furnace and AC unit. They were both a pleasure to deal with and I would highly recommend Delta Air Systems for your HVAC work. These two installers were quick, pleasant and well prepared.
Robert S.
19:44 07 Feb 25
Nice guys do doing the installation. Asked how I would like things set up (eg whether the filter replacement should face front or back). Cleaned everything up nicely. Came during the scheduled arrival time, had everything they needed. Walked me through the new thermostat and helped set up the mobile app. Experiences like this are why I've dealt with Delta Air Systems for years. Thanks, Liam and Eric!
Sean W.
15:40 06 Feb 25
Fantastic service. The technician was friendly, knowledgeable, fast, and detailed in his work. I recommend these folks and I’ll call them again when I have future HVAC needs.
David-Michael D.
14:56 06 Feb 25
My 30 year old furnace finely saw it's last days and Tanya of Delta had me up and running with a new furnace the very next day, she explained the best heating solutions for me to choose from. The technicians Eric and Stephen I found highly skilled and above all calm, friendly and hard workers. They let me know what was happening. Also the clean up afterwards was perfect, Thank you. Special Shout out to Cody for rectifying a major problem within minute's of coming out in the evening on a winters night!I highly recommend Delta Air Systems, you are in safe hands!David-Michael Dunbar
Arun
22:47 31 Jan 25
I had an issue with my furnace and initially contacted another company since we had a service plan with them. They said it couldn’t be fixed and needed to be replaced. I then reached out to Delta Air Systems for a second opinion. Everything went smoothly, and the technician, Braedon, was able to check and repair it. He was professional, knowledgeable, and took the time to explain everything clearly. Excellent service from Delta Air Systems & Braedon —I highly recommend calling them for HVAC issues/install.
Vepul M.
01:22 30 Jan 25
I got Delta Air Systems furnace installed couple of days ago. They were great with their professional and friendly service. Tanya knew what type of furnace I needed. Installers Eric and Stephen installed the furnace and they explained what they did. Once the furnace was installed they explained how to use the furnace and programmed the new thermostat for me. They deserve a 5 star review.
Marc D.
02:31 28 Jan 25
Nothing but good things to say here. The sales process with Matt was great. He explained options, benefits and prices with knowledge and our best interest in mind. Scott and Savanah were awesome installers. They made sure everything was done right. Would definitely recommend to anyone for any home systems needed.
Daniel P.
23:38 21 Jan 25
I had an excellent experience with Braedon! He did an amazing job diagnosing the issue, clearly explaining the root cause, and walking me through exactly what I should do to avoid the same problem in the future. Fantastic customer service—highly recommend!
J R
01:35 21 Jan 25
Braedon was prompt, thorough and pleasant to deal with. We had a minor issue that he quickly and accurately diagnosed, and repaired. So happy that we chose Delta Air for our repair, and lucky to have a talented tech like Braedon. I will continue to use them in the future.
M H.
21:48 20 Jan 25
We had a wonderful experience with Jamie Hann, a Delta Air Systems Sales representative. Our furnace stopped working after 16½ yrs so we needed a replacement. Jamie came to the rescue. He was professional, knowledgeable and confident in the products Delta had to offer. His experience in both installation and sales helped us to make a faster decision on which unit was right for our home. Everything was evaluated and within minutes we had all the information necessary to proceed with the order. The next day, contractors Dan and Richard came out to do the installation. They were friendly, respectful and worked non-stop from start to finish. The job was precise and everything was cleaned before they left. Dan and Richard was kind enough to go through all the details of the new unit. We are grateful Delta Air Systems installed our new furnace with peace of mind. Thank you to everyone!
Richard A.
18:09 17 Jan 25
They showed up when they said they would. I ordered a full furnace inspection & cleaning. Braedon went over everything told me where there might be a future issue ( but not bad enough now). He advised that my furnace was very clean and l didn't need a full cleaning. He charged the base rate saving me $50.He answered all my questions and gave me advice on my water heater maintenence too.I'm very satisfied with Delta. They will continue to be my goto HVAC company.
Darren H.
03:41 11 Jan 25
I’m a lucky home owner that got close to 28 years out of my first new Lennox HVAC system before it gave up. Called Delta after googling local companies online given the last company I used no longer exists. I can see why Delta has high reviews. #1 a person answers the phone. #2 an appointment was booked for a tech to come and see what was wrong. Megan called ahead of time to let me know she was running early. Awesome. Came out and gave me bad/but expected news followed up by Matt in sales that afternoon in person to give me options on a new system. Slept a few days on it while getting a few other quotes and decided to go with Delta. Matt followed up with me via email and phone and was available to answer all questions. Installation of new system was arranged right away being without heat early November I was bumped in priority.Removal of old system and install was headed by Eric’s team. Very personable crew that come across as enjoying what they do and knowledgeable. And if they didn’t know they asked to give me an answer. Slick and tidy installation. Liam went over the “high tech” thermostat and phone app with me and we got it all sorted.Few months later and am pretty happy with the new Smart heat pump /furnace system.
James R.
20:02 08 Jan 25
Our on-furnace whole-home humidifier was not working. Worked with Delta Air Systems service to get a good replacement and they installed it next day. Liam and Fabio installed the General Aire 4200PFT. They were polite, quick and professional and did a great job on the installation. They laid down runners to protect our floors and cleaned everything up after. They did a good job of explaining how to maintain it and answered all my questions. Highly recommend.
Sue H.
00:31 07 Jan 25
Our furnace went off this morning. My first call was to Delta. They came the same day and Braedon arrived got our furnace working and left us warm and cozy. Thank you 👍
Pontes
20:22 06 Jan 25
Liam B and Fabio did a great job.
Dave K.
19:44 06 Jan 25
BRAEDON just left my house having thoroughly serviced my furnace and repaired a broken exhaust pipe. He is hardworking, knowledgeable, efficient and cordial. The price I paid for this work was reasonable. Delta installed the furnace a few years ago and have been servicing it since then. I would highly recommend Delta Air Systems to anyone.
Angie H.
21:54 23 Dec 24
Kyle and Richard were efficient and courteous. They went above and beyond in clearing branches from an overhanging tree over the driveway so their truck could get in.
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!
Benefits of a Ductless Mini-Split System
Installing a ductless mini-split in your home comes with its own unique set of advantages. Homeowners who choose to either switch to ductless mini-splits or use them as supplemental cooling do so because they provide several benefits including:
- Easy and minimally invasive installation
- Energy efficiency and monthly savings
- Improved air quality
- Better comfort control with individualized room temperature
- Reduced carbon footprint
How a Ductless Mini-Split Air Conditioner Works
What differentiates a ductless mini-split from a central air conditioner begins with how the system operates altogether. While a central air conditioner works to create cool air to disperse throughout your home, a ductless system simply removes the heat from the room.
A ductless system consists of two units: an outdoor unit and an indoor unit. The indoor unit uses refrigerant coils to absorb the heat from the air in your home, while the outdoor unit disperses the absorbed heat into the air outside.
Ductless Vs. Central Air Conditioner: Which is Best for Your Home
When it comes to choosing the right air conditioning system for your home, it isn’t a question of whether a ductless mini-split or a central air conditioner is objectively better across the board. Both come with their own unique set of advantages, and it’s about finding which features better fit your home and your lifestyle.
If your home has pre existing ductwork that can be easily fitted with a new central air conditioner, that’s most likely the right choice for you. However, if you have a very old or a very new home that doesn’t have proper ductwork installed, or if you need supplemental cooling, a ductless mini-split may be the way to go.
Latest News
Upgrade Your Comfort: 4 Signs It’s Time for a New Ductless Mini-Split System
Are you facing inconsistent comfort, high energy bills or frequent repairs with your ductless mini-split? These issues, especially if you’re experiencing more than one, could suggest that it’s time for an upgrade. In this article, we’ll share 4 telltale signs… Continue Reading Upgrade Your Comfort: 4 Signs It’s Time for a New Ductless Mini-Split System
Why Summer Maintenance for Your Heat Pump is Essential
Summer is nearly here, and the last thing you want is a malfunctioning heat pump leaving you facing the heat without relief. Seasonal maintenance is crucial, and neglecting your heat pump during the peak cooling season can lead to trouble.… Continue Reading Why Summer Maintenance for Your Heat Pump is Essential
Yes, You Can Finance Your Heat Pump! Here’s How
Upgrading your home’s comfort system with a heat pump is an investment in energy efficiency, year-round comfort, and potentially, increased home value. However, the initial cost can sometimes be a barrier. The good news is, you don’t have to wait… Continue Reading Yes, You Can Finance Your Heat Pump! Here’s How
Hybrid Heating Systems Aren’t Just for Heating!
We’ve written about hybrid heating systems a few times before; how they’re super efficient and how you can save with one. But, did you know that they’re not only for heating? It’s true! A hybrid heating system also has cooling… Continue Reading Hybrid Heating Systems Aren’t Just for Heating!
Maximize Comfort & Efficiency: Add a Heat Pump to Your Existing HVAC System
Did you know that there are several ways you can benefit from adding a heat pump to your existing HVAC system? Heat pumps are incredibly efficient and versatile heating and cooling systems that can help lower your energy consumption, reduce… Continue Reading Maximize Comfort & Efficiency: Add a Heat Pump to Your Existing HVAC System
Daikin Mini-Split Heat Pump Troubleshooting Guide
Heat pumps have become increasingly popular due to their energy efficiency and reliability. These versatile HVAC systems heat and cool homes. Daikin in particular offers a range of heat pumps with cutting-edge technology designed to deliver exceptional comfort. And even… Continue Reading Daikin Mini-Split Heat Pump Troubleshooting Guide