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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.
This review is late coming so my apologies to the amazing Twin Tech team! I contacted Dave at Twin Tech for a quote this past Feb (as I was collecting a few) and his recommendation was excellent. From the first meeting with Dave to the team installing the new furnace, not once did i feel uncomfortable . The team were extremely professional yet personable and clean and tidy. Decent companies still exist!
The new furnace just purrs and its just amazing the difference it has made!
(PS my sibling ended up getting a furnace from them as well)
The service was Twintech was excellent.
Dave our salesperson was easy to talk to and was professional. The unit recommended meets our needs and budget.
Greg and his team arrived on time for the installation and even got rid of the garbage the contractors left in our furnace.
Would definitely recommend Twintech.
Our old water tank was installed in 1997. Wasn't working as well as it should so we looked into a tankless as it is more efficient and a space saver! we had used Twintech in the past for a furnace cleaning and were satisfied with that so we decided to ask for a quote for the changeover. Gary arrived and provided the options and the quote fit within our budget so we decide to go with them after receiving a few alternative quotes from other companies. They did what the said would be done and it was completed within a reasonable time frame! Removal and cleanup of the old tank was seamless. We are now enjoying consistent and efficient Hot water! I recommend Twintech and would use them for future projects!
One of the most honest HVAC companies out there! Dave was very helpful and informative in helping us choose a new AC unit. While they werent the lowest quote, we went with them because we trusted Dave and he was the most honest guy out of the companies that quoted us.
Greg and his crew who installed the unit were very professional and did a great job. If I could do it over again I would choose Twintech again.
Relocated and replaced our air conditioning unit. Fast, professional, and high quality service. We would definitely use them again for future projects!
The term excellent or incredible does not seem high enough praise for the Twintech Heating and cooling company that recently replaced our 15 year old furnace. To start with, the response from Dave at Twintech to our original pricing request was the quickest and most professional of the 5 prices we received which included two of the primary natural gas providers. The Twintech pricing was the most competitive by a considerable margin.
We had Dave visit our home to confirm all pricing which he did and scheduled us for next day installation which was not offered my the majority of the other providers.
The installation; the team arrived on time and provided coverings to all of the hardwood flooring and stairs and proceeded with the removal and reinstallation of the new furnace, the workers predicated six hours and were completed in five hours. I have to mention how courteous and polite the workers were each time we interacted with them from start to finish.
The final result was amazing, all materials were cleaned up and removed from the house and the workmanship very impressive.
One feature that really stood out for me which shows a high level of professionalism was that we had various condensation hoses from the furnace , humidifier and an air filtration unit meeting at the one drain, the installation crew ran PVC tubing including elbows along two sides of the furnace to guide the hoses into one PVC tube at the drain, it looks great!
When the install was completed and tested the Twintech technician guided us through the features and recommendation's for care of the new furnace.
We highly recommend Twintech to anyone for the outstanding service provided to us.
I didn't hesitate to call Twintech in for a 2nd time as they did an outstanding job installing my new furnace last year. This time my 18 year old air conditioner was on its last legs. Greg and the team are top notch, highly skilled technicians. The job was executed in a timely and professional manner. Greg was extremely thorough and went the extra mile to make sure everything was operating efficiently. Lastly, Dave is a true gentleman and really made the customer experience pleasurable and worry free. Always remember that good work ain't cheap and cheap work ain't good.
It's so hard to find solid companies these days, but I was very pleased to find one in Twintech. Greg and his crew were very clean, respectful and professional. We were most impressed at how all the things they said they would do, were done. Sounds strange, but usually when a contractor comes to your home they say they will take care of this and that, make sure this is done, etc but when the work starts you have to constantly remind them of your previous discussions. Greg ensured every item he said he would do was done, no reminders required. The work was done right, at a fair price and on time. We will be sure to call them when our A/C unit dies (fingers crossed that's not going to happen too soon :) )
Replaced our aging hot water tank with a tankless system. Excellent work, fast efficient and clean.
Walked us through the new system and recommended maintenance schedule.
This is our second time working with TwinTech and we are very happy with the quality of their work and professionalism.
Efficient work and great follow up by the team at Twin Tech. Great product and communication.
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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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