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

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

Durham Region Air Conditioning Repair, Service and Installation

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When your AC or Heating system isn't up to par, you can count on Twintech Heating & Cooling for all your residential air conditioner repair needs. After serving Stouffville, Pickering, Ajax, Scarborough, Whitby and more for over three decades, Twintech can guarantee the reliable service you need to stay comfortable all year long. The Twintech experience is:


- Access to licensed and knowledgeable technicians 24/7, 365 days a year.
- Over 30 years of heating and cooling experience.
- Easy to understand pricing and rates.
- The Twintech 100% satisfaction guarantee!


If you need a new air conditioning or heating unit, we'll also be able to recommend the best choice from our selection and knowledge of many makes, models, and brands. Doing a residential air conditioner or heating repair can be stressful, especially if it's an expensive one. So, if you think buying a new air conditioning or heating unit isn't right for you, we can rent you one! Renting is perfect for homeowners who want to avoid hefty maintenance costs and large down payments. This can be ideal for anyone who moves frequently but gets stuck with a bad HVAC unit. You can visit our rental page for more information.


Make sure you get to beat the heat this summer, let Twintech tackle your residential air conditioner or heating repair. If you call us today at 1.844.894.6832, we'll help you book a free, no-obligation consultation or just to chat with a local air conditioning expert. All consultations are always completely obligation-free.



See What Our Customers Are Saying:

by Eric Y, Greenbank on Twintech Heating and Cooling

Dave was great in helping me get the proper units for my property, as well as getting them installed. The installers arrived when they said they would, and completed the project on time, and professionally. If I needed another furnace, I would use Dave again.

by Ed B., Whitby on Twintech Heating and Cooling

I have known Greg and Grant Dainty for many years and have used their company for my house and business. I recommended them also for my parents and sister and they all have been very satisfied with the quality of work for a reasonable price. I just recently had them install a new HVAC system in an older house and was very pleased with their work. Craig in Pickering. After meeting with various heating and air conditioning contractors I was referred to Twin Tech Heating and Cooling through a family member. Greg and Grant arrived at my home and provided me with an estimate and a plan as to how they were going to remove and replace my furnace and air conditioner. On the day of install Greg and Grant arrived at my home on time and were very professional and extremely courteous as to any questions or concerns that I had. The removal and install was truly professional and the attention to detail was exactly what I was looking for. I’ve seen many installs from other contractors and I couldn’t be any happier to have had such a clean looking install. The sheet metal work, ducting and venting all look fantastic. Upon completion Greg and Grant left me feeling extremely happy and very fortunate of a job well done. Thanks again Twin Tech!!

by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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!

January HVAC Checklist - Keep Your Systems Running Smoothly

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - January 6, 2026

January is often the coldest and most demanding month for HVAC systems in Ontario. With heating systems running almost nonstop, this is when small issues can turn into costly breakdowns if left unchecked. A simple January HVAC checklist can hel

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Twintech - The Best Amana Heat Pump Installation in Ajax

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - September 22, 2025

When it comes to heating and cooling your home, choosing the right system is only half the job. To get the most out of your investment, you need expert installation from trusted professionals. At Twintech Heating & Cooling, we’re prou

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The Strong Warranty Coverage of Amana Heat Pumps

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - November 23, 2025

When choosing a new heat pump for your home, reliability and long-term protection matter just as much as performance and efficiency. That’s one of the reasons Amana heat pumps stand out in today’s HVAC market. Amana is known for off

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Is My AC Unit Overworked?

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

If you're concerned that your AC unit might be overworked, there are several signs and factors you can consider to determine if it’s operating beyond its capacity or needs maintenance. Here’s a detailed guide to help you assess the si

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