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Twintech: Your HVAC System Experts in the Durham Region

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.
Imagine, it's 5 minutes after the midnight countdown New Year's eve and the furnace quits. We called TwinTech fully expecting to leave a message and actually spoke with Greg, one of the owners! We had an immediate repair early the next morning & a new furnace within the week. We have entrusted TwinTech with all our home HVAC service needs for over 6 years. That's why this week with an opportunity to purchase a new BBQ, we called them 1st to see about a gas line install. It's chicken on the grill tonight! They are efficient, reliable, honest, hard working, and -- attentive is an understatement.
Wonderful customer service, starting from the job quote (Dave), to the clean install, to the follow-up. Twintech is a small company which installed my Napoleon furnace, A/C, John Wood tank, and ran the line for my gas dryer. The installation was completed as promised in one day. The work area was kept very clean, and they even took care of my old rental tank. The professionalism and wonderful customer service is second to none. They completed all of my rebate paperwork, and now I'm getting $2000 back! You will not be disappointed if you hire this company for your project.
I was referred to Twintech by a neighbour and was not disappointed. Not only was the customer service excellent their workmanship was second to none. Greg and Grant work extremely clean covering the pathway to the furnace room, labeling the essential parts, left the area spotless and were efficient. They cleaned up the mess left by the previous installers (wiring, improperly installed AC coil, and gaps in venting etc). They also ran through the operation of the new furnace and gave me some maintenance tips. Greg and Grant are professional and all around good guys. I will definitely recommend their service to anyone without hesitation.
Very satisfied with service from Twintech , beginning with all the information provided by Dave , which helped make the decision much easier . Installation was very smooth & done on time as promised & cleanup was well done . Would definitely recommend this company & use them again for any future needs . Well done.
Twintech Heating & Cooling Inc. came in and replaced my 39 year old furnace with a beautiful Napoleon variable high efficiency furnace! Their work was efficient and professional and they were a pleasure to deal with, from sales to installation! I would highly recommend them.
After receiving numerous quotes to replace my old furnace and AC unit (which was 20 years old) I went with Twintech. Dave, in sales, answered questions professionally and promptly and worked diligently in order to secure my business. Installation was scheduled the week after and Greg and Peter showed up, as scheduled, and did a fine job installing both units. The site was left tidy and neat. I would highly recommend Twintech for your furnace and AC work.
I chose TwinTech because they installed my new furnace a few years ago and did a great job. When they installed my new A/C, they replaced all parts -- the copper pipes, the housing on top of the furnace and the wiring. (Apparently, the wiring for my old A/C was insufficient.) Their pricing was competitive. The sales representative came to see me within a few hours of my call. My new A/C was installed a few days later and I couldn't be happier with Twintech's professionalism and work. I would recommend TwinTech to any homeowner.
Had a great experience with this company. Great price and great customer service. You wont be disappointed with twintech. Discussed the job with Greg while he was installing who was extremely informative and obviously enjoys the work he does.
I needed my AC unit relocated due to upcoming landscape work. I reached out to the Twintech team through Homestars. Dave connected with me immediately to discuss the project and various options. We decided the best option was to mount the unit on the wall. Greg was in touch with me the same day as well and we scheduled the work for later that same week. This was a small job so I did not think I would get immediate attention. The Twintech team exceeded my expectations in every respect. They were very knowledgeable and friendly. The team arrived exactly on time on the scheduled day and worked efficiently to get the job done quickly. I would definitely use Twintech again for any Heating and AC projects.
I have used Greg Dainty for over 15 years in 3 different homes, for heating, cooling, pool heaters, appliances and bbq lines. Greg has always been so professional, friendly and the workmanship nothing short of fantastic. Greg has always discussed my options and fixing versus replacing, giving his honest opinion and what works best for me cost effective wise and long term. I have valued his opinion so much and have not trusted my gas needs with anyone since using him. I have also referred him to many of my friends and family and have always been so thankful with how well and quickly he looks after us all. I hold Greg in the highest regard and would recommend him to anyone with complete confidence!
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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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