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Twintech: Your HVAC System Experts in Ajax

When it comes to keeping your home comfortable year-round, you deserve an HVAC team that’s reliable, experienced, and truly committed to your comfort.
At Twintech Heating & Cooling, we’ve built our reputation as the go-to HVAC experts in the Durham Region by offering high-quality workmanship, honest service, and solutions tailored to each home we visit.
Whether you’re upgrading your heating system, looking for a more efficient cooling solution, or needing fast, dependable repairs, Twintech is here to help.
A Local Company You Can Trust
As a locally owned and operated HVAC company, we understand the unique climate challenges of the Durham Region and Toronto.
From humid summers to long, chilly winters, your home needs equipment that can handle it all — and technicians who know how to set it up properly.
Twintech brings:
Years of hands-on experience
Deep knowledge of local home types
Friendly, trustworthy service
Personalized recommendations that fit real household needs
We’re not a big-box company — we’re your neighbours.
Comprehensive HVAC Services
We provide the full range of heating and cooling services for homeowners across the region.
Heating Services
Heat pump installation and maintenance
Furnace service and replacement
Hybrid heating solutions
Seasonal tune-ups Cooling Services
Central air conditioner installation and repair
Ductless cooling systems
Efficiency upgrades
Fast diagnostics and fixes Air Quality Solutions
Humidifiers and dehumidifiers
Air filtration
Ventilation improvements
Heat recovery ventilators (HRVs)
Whatever your HVAC needs, we’ve got the tools and expertise to get the job done right.
Certified Installers of Today’s Top HVAC Brands
Twintech installs and services trusted, high-performance equipment — including leading heat pump brands like Amana, which offer excellent efficiency, durability, and warranty protection.
We stay up to date with the latest training and certifications so you always receive the highest standard of installation and service.
Focused on Efficiency and Savings
In the Durham Region, energy costs continue to rise — but your bills don’t have to.
We specialize in recommending and installing systems that reduce energy consumption without sacrificing comfort.
By choosing the right equipment and ensuring it’s properly installed, Twintech helps homeowners save money year after year.
A Customer-First Approach
We believe HVAC work should be honest, transparent, and stress-free.
That’s why we take the time to explain your options, answer your questions, and complete every job with care.
Our customers appreciate that we:
Don’t oversell equipment
Provide clear pricing
Offer dependable follow-up care
Stand behind our work
Your comfort is truly our priority.
Fast and Reliable Service Across the Durham Region
From Whitby to Oshawa, Ajax to Pickering, and throughout Toronto, homeowners rely on Twintech for fast response times and professional results.
Whether it’s a planned upgrade or an emergency repair, we’re ready when you need us.
Choose Twintech Heating & Cooling — Your Local HVAC Experts
For unmatched expertise, friendly service, and top-tier heating and cooling solutions, Twintech Heating & Cooling is proud to be a trusted name across the Durham Region.
If you’re considering a new heat pump, upgrading your HVAC system, or simply want a professional opinion, we’re here to help every step of the way.
Great service and great people to deal with, from sales to installer. I highly recommend this company.
Twintech replaced our aging furnace and air conditioner recently. I highly recommend this company. Their quote was competitive, they were on time and respectful of our home and extremely professional. From the salesman to the installers and the owner who followed up afterward to ensure we were satisfied, we are very pleased with the service. We are looking forward to working with this company for all of our HVAC needs for the years to come. Excellent workmanship and service!
We wanted to get our AC replaced as it was 22-years old and added to this our furnace was costing more and more to repair. So, we decided to get both the furnace and AC replaced.
After going through a few quotes and product reviews we decided to go with Twintech. The three-men crew arrived early in the morning, wasted no time and got to work right away. By 2:00 pm, they were all done. Ive found their work to be top notch and they were completely professional. I had all my questions answered to my satisfaction both during the progress of their work and at end.
I have pleasure in recommending Twintech to anyone who is looking to get their furnace or Ac replaced
Nathan S.
Our air conditioner died On a Saturday and within hours Dave came out to take a look and discuss replacement/repair options.
The new air conditioner was installed on the Wednesday. The new unit was installed quickly. The installers were friendly and cleaned up afterwards.
We noticed a slight leak around the furnace that night and they came out the next day and fixed the issue. It has been working great and is quieter than our previous unit.
Very satisfied and would highly recommend TwinTech.
I contacted TwinTech to replace my 20-year old A/C. Dave, their service rep, promptly replied and was at my home within 2 hours. He was friendly and knowledgeable and didn't try to upgrade or oversell their A/C units but suggested the best fit for my small 1000 feet bungalow. Although this was during a heatwave and very busy, they were able to fit me in 2 days later. The TwinTech crew installed a 1.5 ton Ducane A/C unit that is now running smoothly while maintaining a constant cooling temperature. The crew were very courteous, professional and efficient and I will definitely recommend TwinTech to family and friends. I much appreciated your great service.
Nancy M., Oshawa
We had a great experience. The guys who installed our a/c did a nice job. Cleaned up.
excellent crew, fast and efficient! Would call them again when I need a new furnace.
Professional, courteous and efficient, dont need to say more than that! Use them you will not regret it.
TwinTech was a pleasure to deal with from the estimate through installation. We replaced a 28 year old a/c unit with one recommended by TwinTech's sales representative Dave who took the time to go over the product with us and answer any questions. The warranty is for 10 years parts and labour and they will complete the registration for you. Installation was by Greg (owner) and Mitch and Spencer who were quick and efficient and left everything clean and tidy.
Very professional, from the sales consultation and inspection to the final installation. Met every expectations we had for the job. A local business with great client support. We highly recommend. Twintech is a blue chip! Thanks!
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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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