Residential HVAC Design Services a unique approach to HVAC Design

At McCallum HVAC Design Inc., we are a professional HVAC design firm providing the highest quality of services. Delivering HVAC designs for Residential New Construction (RNC), renovation/addition projects, and luxury/custom builds throughout the GTA and across Ontario. We have developed full knowledge of the HVAC permit application process, and achieve high municipal approval success rates.


With the experience of over 15,000 Production Designs and more than 6000 luxury and custom home projects, we are the HVAC design service for you!

McCallum HVAC Design was established in 1992 and provides professional HVAC design services. Our projects range from simple interior renovations up to large scale additions, to multi-system luxury custom homes.

BILD Service Professional of the Year- 2017

McCallum HVAC Design was recognized as the Service Professional of the Year. This award is created to recognize¬†BILD¬†Associate members for “quality service, professionalism, leadership and innovation” within their respective fields. McCallum HVAC is honored to be the recipient for 2017.

25 Years in Business

The McCallum HVAC team is proud to be celebrating our 25th year in business. 


 request info