About Us

Trusted Professionals

Hallman and Dittmer Heating and Air Conditioning Inc. is a Canadian Corporation based in Kitchener, Ontario, locally owned and operated by Dave Hallman and Dwight Dittmer. Established in 1991, the company has earned a solid reputation as a premier heating and air conditioning contractor through the years of faithful and dedicated service. With a combined 100+ years of HVAC experience our team is ready to provide you with quality, reliable products and service to meet any budget and design.


Furnaces – Air Conditioning – Fireplaces – Indoor Air Quality – Gas Lines


Quality Products

Quality People

Quality Service


Our Mission

Our mission is to offer extraordinary service built on the foundation of honesty, education and attention to each clients’s needs. We are one of the areas leading HVAC contractors are are proud to offer a high end solution to make your home’s climate comfortable, for your family. 


Honest Reviews

“Consistently reliable and friendly service. I have been a returning client of nine years and continue to give my well deserved recommendation.”

Valerie – Homeowner

As a home builder, Hallman & Dittmer has been my go-to company for over 20 years.  I am very pleased with their staff, products, and customer service.  They are always professional and a pleasure to deal with, even if there was a concern or issue. I recommend them to anyone who wants good quality service and  a quality product.

Kevin S – Willo-Homes

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