$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

ajax hvac services

24 / 7 Emergency Service Available. Call Us Now: 1.844.894.6832

Ajax Air Conditioning Repair, Service and Installation

ajax hvac services
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If you live in the Durham area and need Ajax HVAC services, then Twintech Heating and Cooling are here. We are a full HVAC care and maintenance provider owned and operated by third-generation technicians. Over the 30 years of operation, we have gained a reputation for the quality of services and the high level of customer service for the GTA and surrounding areas.


HVAC stands for heating, ventilation, and air conditioning. It's the system responsible for keeping your home comfortable during the cold and warm months. The best way to ensure your HVAC system runs smoothly is by replacing the furnace filter every 90 days, depending on how often the furnace is running or if you have pets. Ductwork also plays a part; any cracks will cause warm or cool air to leak out, which means the air will not go where it should.


One of our Ajax HVAC services includes maintenance, and we recommend a regular maintenance routine to keep your heating and cooling system running smoothly. So, if it's been a while since your system's last maintenance, give Twintech a call. We will send one of our experts to inspect the furnace, air conditioner unit, and ductwork. If they find something is wrong, they will be able to repair it.


For more information on Ajax HVAC services, visit our website or call us at 1(844)894-6832. We will answer any questions you may have. Contact Twintech Heating and Cooling today.


ajax hvac services


See What Our Customers Are Saying:

by Aaron on Twintech Heating and Cooling

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.

by Linda on Twintech Heating and Cooling

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!

by Robert Rogers on Twintech Heating and Cooling

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.

by Robert Mizuno on Twintech Heating and Cooling

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!

by Ruth on Twintech Heating and Cooling

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!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

by Trevor Owens on Twintech Heating and Cooling

I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. I’ve used the company in the past for my furnace so I was happy when I recognized Greg at my front door. He’s great and the service is always top notch. I’d highly recommend using twintech for honest, superior service in the Durham region. Thanks!

by Nicole Alain on Twintech Heating and Cooling

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!!

by Courtney Parkes on Twintech Heating and Cooling

Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!

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ajax hvac services

See What Our Customers Are Saying:

by Aaron on Twintech Heating and Cooling

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.

by Linda on Twintech Heating and Cooling

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!

by Robert Rogers on Twintech Heating and Cooling

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.

by Robert Mizuno on Twintech Heating and Cooling

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!

by Ruth on Twintech Heating and Cooling

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!

Standard AC Warranty Conditions

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - May 31, 2024

Standard air conditioning (AC) warranty conditions may vary slightly depending on the manufacturer and model, but they typically include the following: Duration: The warranty period usually ranges from 1 to 10 years, with longer warranties t

Read More

Heat Pumps - A Smart Move for Ontario Homes

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - September 5, 2025

Ontario homeowners know the struggle of dealing with hot, humid summers and long, cold winters. Traditionally, this has meant separate systems: an air conditioner for cooling and a furnace for heating. But with modern heat pump technology, one

Read More

Emergency HVAC Repair in Toronto

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - February 17, 2026

When your heating or cooling system fails unexpectedly, it’s more than an inconvenience—it can quickly become a safety issue. Whether it’s a furnace breaking down during a cold snap or an air conditioner failing in extreme heat,

Read More

How to Choose a Furnace?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - March 24, 2021

Is your furnace nearing its end of life If you answered yes, then it's time to start looking for a new one before it is too late.When looking into replacing your heating unit, there are a few things to keep in mind when purchasing a furnace. And the

Read More