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

About Us

TWINTECH HEATING & COOLING is a full-service HVAC installation and maintenance provider located in Pickering, Ontario. We provide our customers with the highest quality INSTALLATION and SERVICE for their FURNACE, AIR CONDITIONER, HEAT PUMP, WATER HEATER or TANKLESS WATER HEATER, GAS FIREPLACE and IAQ products such as HUMIDIFIERS and AIR CLEANERS. Since 1994 we have been offering our customers the highest quality services throughout Ajax, Pickering, Scarborough Whitby, Oshawa, Toronto, Markham, Bowmanville, Newcastle and the Durham Region.

Twintech is owned and operated by twin brothers Grant and Greg Dainty who opened their HVAC business in 1994. The twins are both third generation HVAC technicians, fully licensed and insured, and members of BBB, TSSA and HRAI. We are affiliated with these organizations to help give our customers the confidence they are dealing with a company that can be counted on to do it right.

Over the years TWINTECH has earned a reputation for both the quality of our installations and the high level of customer service. Today’s Heating and Cooling equipment is very sophisticated, so TWINTECH recognizes the need for crucial preventative maintenance to modern HVAC systems, and as a result, our company has gone to great lengths to bring together a highly trained service team that our customers can count on during any heating or air conditioning emergency.

CALL us anytime at 1-844-894-6832 or go to our website www.twintechheating.ca where you can connect with us by CHAT or fill out a form and we return your call or email. As a TWINTECH customer, you can be assured that any visit to your home by one of our technicians or sales experts comes with friendly professionalism. Check out our reviews on HOMESTARS or GOOGLE as part of your research for any HVAC issues you may have.

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Grant and Greg Dainty
TWINTECH Family

Our History

Grant and Greg owe their business prowess to their grandfather, Tom Rodman, who perfected his skills in the sheet metal trade while working at the General Motor’s plant in Oshawa before founding his own business, Rodman Sheet Metal, in 1949, during a time when sheet metal fittings were still produced by hand. Tom and his staff are responsible for the installation of hundreds of oil furnaces and duct systems in homes that were built across Ajax, Pickering, Whitby and Oshawa during the 1950s and 60s. Rodman Sheet Metal was eventually renamed to Rodman Heating.

In 1972, Greg and Grant’s father, Ron Dainty, a certified Tool & Die Maker, joined the Rodman Heating team as a sheet metal apprentice. Ron expanded his skill set to include an expertise in oil and natural gas furnaces and central air conditioning. By 1975, Tom was ready to retire his tool belt, and handed the reigns of the business over to Ron. Under Ron’s leadership, the company was once again re-branded, this time to reflect their new service offerings – Rodman Heating & Air Condition

Curious as youngsters, Greg and Grant grew up immersed in the family business. During the late 70s, they worked part-time as summer students alongside their father. After graduating from college, the twins both took on full-time roles in family business, taking advantage of hands-on learning in every aspect of the heating and cooling business. From the sweat and toil of the sheet metal shop producing custom ductwork by hand, to the installation of furnaces and air conditioners, to answering the phones and going on late-night service calls, they could do it all.

When it was Ron’s turn to retire and sell the business, Grant and Greg decided to translate their hands-on experience into a successful brand of their own, and so TWINTECH was born.

With over 30 years of experience under their belts and an unparalleled reputation for delivering superior service, TWINTECH has been able to develop and maintain the long-term customer relationships that make them the envy of the industry.

Grant and Greg Dainty's Childhood Photo

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!

Why Does My Furnace Keep Turning Off?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - October 21, 2024

If your furnace keeps turning off unexpectedly, it's a sign of an underlying issue that needs attention. Here are some common reasons for this problem: 1. Overheating A furnace may turn off if it's overheating due to a clogged air filte

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Twintech - Your Experts on Heat Pump Rebates in Oshawa

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - August 19, 2025

If you live in the Durham Region or Toronto and are considering upgrading your home’s comfort system, now is the perfect time. With generous rebates available on Amana and Panasonic heat pumps, homeowners can save thousands while enjoying ef

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Heat Pump Buyer's Checklist: What Ontario Homeowners Should Know

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - December 8, 2025

Buying a heat pump is a big decision—and the right choice can lower energy bills, improve comfort, and deliver reliable heating all winter long. To get the most value from your investment, it’s important to know what to look for before

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Amana Heat Pump Service Whitby

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - July 14, 2025

If you're a homeowner in Whitby looking to enhance energy efficiency and indoor comfort, installing an Amana heat pump could be the perfect solution. Renowned for their durability, energy savings, and year-round performance, Amana heat pumps a

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