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Twintech – Your HVAC Experts in Ajax

When it comes to keeping your home comfortable year-round, you want a local HVAC company you can trust—one that understands your home, your climate, and your comfort needs.
That’s why homeowners turn to Twintech Heating & Cooling as their HVAC experts.
From cold winter nights to hot, humid summers, Twintech delivers dependable heating and cooling solutions designed for Canadian homes.
Local HVAC Knowledge That Makes a Difference
Canadian homes range from established neighbourhoods to newer developments, each with unique heating and cooling requirements.
Twintech brings hands-on local experience to every project, recommending systems that perform reliably in Durham Region weather conditions.
Our team understands:
Seasonal temperature swings
Common home layouts
Efficiency challenges in older and newer homes
The importance of reliable winter heating
That local insight helps us design HVAC systems that truly work for your home.
Complete Heating & Cooling Services
Twintech offers a full range of HVAC services for homeowners, including: Heating Solutions
Cold-climate heat pump installation
High-efficiency furnace replacement
Hybrid heat pump and furnace systems
Seasonal heating maintenance and repairs Cooling Solutions
Central air conditioning installation
Ductless cooling systems
System upgrades for improved efficiency
Fast, reliable AC repairs Indoor Air Quality
Air filtration and purification
Humidity control solutions
Ventilation improvements
Whether you need a system upgrade or emergency service, Twintech has you covered.
Specialists in Modern Heat Pump Technology
Heat pumps are becoming one of the most popular HVAC upgrades in Canada—and for good reason.
Twintech specializes in installing modern heat pump systems that provide efficient heating in winter and cooling in summer.
Benefits of choosing a heat pump include:
Lower energy costs
Even, consistent comfort
Quiet operation
One system for year-round use
We help homeowners decide if a heat pump, hybrid system, or traditional setup is the best fit.
Professional Installation You Can Rely On
Even the best HVAC equipment won’t perform properly without expert installation.
Twintech’s certified technicians focus on precision, safety, and long-term performance.
Every installation includes:
Accurate system sizing
Proper airflow and setup
Careful testing and calibration
Clean, respectful workmanship
The result is comfort you can feel—and efficiency you can see on your energy bills.
Honest Advice and Customer-First Service
At Twintech, we believe in straightforward recommendations and transparent service.
We take the time to explain your options clearly so you can make informed decisions without pressure.
Homeowners choose Twintech because we offer:
Honest system recommendations
Clear pricing
Reliable follow-up support
Long-term comfort solutions Proudly Serving Toronto and the Durham Region
As a trusted local HVAC company, Twintech is proud to support homeowners throughout Toronto and the Durham Region.
Whether you’re upgrading your system, improving efficiency, or preparing for winter, our team is ready to help.
Your Trusted HVAC Experts
For dependable heating, cooling, and indoor air quality solutions, Twintech Heating & Cooling is the name Canadian homeowners trust.
From expert installation to reliable service, we’re committed to keeping your home comfortable in every season.
Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!
Just had a new furnace installed by Twintech. I cant express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!
They've cleaned my furnace a couple of times and mentioned that the hot water tank standards were going to change soon so I decided to change mine out.
There were a few challenges during the process but the installers handled the problems without missing a stride! I now have really hot water again!
Highly recommend Twintech Heating company, we got honest and detailed information on what was needed to replace and install a new gas furnace. Bob and Greg made us feel comfortable withe process through their thorough explanation and knowledge of the right furnace for our needs. The professionalism and courteous friendly attitude towards the customer is what we liked the most as they treated us like family. So happy with our decision and new furnace we will be looking into get our rental water heater replaced and installed by Twintech team. We feel better having their knowledge on our side and will only trust them with any further maintenance of furnace.
Customer service and knowledge is priority in this industry, and Twintech has it. I've dealt with their team for maintenance and a furnace replacement. They're accommodating and make great recommendations, and came through at a great price over the big guys in the industry. They'll be my next call when I need service or maintenance.
I decided that the noises and age of the existing furnace which was old and not very efficient to replace it. Gave Greg a call and Grant and Greg got to work on it. Because of supply issues with the current heating type that would be an easier install Greg convinced me to change the location of the system and it would provide me better service for heat and efficiency. I had skeptical but went ahead anyway putting trust in Greg And Grant. Greg, Grant and Mitch came through and in 2 days had completely relocated my heating and A/C system. I can honestly say Greg was right my old house has been warmer and more evenly heated as it ever was. For anyone reading this rather long winded review can take my word for it, Twin Tech can take care of your needs.
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Great Team! Furnace broke in the weekend, Bob visited same day and Greg installed new one on Monday. Team was professional, respectful and knowledgeable. Installation went very well, Greg found solutions to challenges, like hiding new conduits in the ceiling. Looks nice and new furnace is working great. Five Stars.
I used Twintech to install a new furnace for my home. Bob was terrific in explaining the sizing options and why the 2 stage furnace was the best option for me. Greg did a great job installing, clean and on time. Finished work looks great but the best part is how it works. The 2 stage heating is so much more comfortable. I run the fan continuously to keep the indoor air clean. Great investment! Would highly recommendTwintech!
Im going to start this by saying Im a very particular customer. My background is in mathematics and mechanical engineering so I have an eye for detail and a respect for technical knowledge.
Greg had already done an AC inspection and replaced a water heater tank and there was no question in my mind who to deal with replacing my rickety old furnace after it got pooched.
Bob dropped in ahead of time and clearly (and knowledgeably) outlined all technical, price and operational options.
Greg showed up on time, on the agreed date and did a fantastic job. (The OLD furnace was a house of horrors and was installed in a keystone cops sort of way- careless.)
The work Greg did was HIGHLY PROFESSIONAL and FAR MORE FUNCTIONAL than what I had.
Im also a musician with many instruments so maintaining predictable humidity/temperature is extremely important to me. Greg recognized this as did Bob. You NEVER feel like youre being brushed off.
In summary, if youre looking for PROFESSIONAL, QUALITY results by an EXPERIENCED, THOUGHTFUL team
(that also happen to be FRIENDLY and ATTENTIVE ) then youve come to the right page!!
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We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.
Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
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