Heating Ventilation and Air Conditioning In Our Community


We provide here on this website what we know about the HVAC industry and how this information might impact our customers.  We will also try to update our customers and community about safety issues such as COVID-19 and anything else that might affect how we do business. We Care.

Replace filter with a high MERV rating
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Government of Canada COVID-19: Guidance on indoor ventilation during the pandemic

The Public Health Agency of Canada (PHAC) has developed a guide to inform Canadians about how indoor ventilation, combined with other recommended public health measures, …

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paperless office at Unionville Heating and Air Conditioning
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Paperless Business is Green and Efficient

John St. Germain was interviewed after Unionville Heating and Air Conditioning won the Reader’s Choice Awards. Read the article on Markham Review https://markhamreview.com/no-more-papertrail-for-unionville-heating-business/ From tap …

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Get backup power to your furnace during a power outage
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Furnace Backup Power During Electricity Outage

Get backup power to your furnace during a power outage. All you need is CarGenerator™ and an extension cord.  When the power goes out due …

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Readers Choice awarded to Unionville Heating in the heating and air conditioning category for 2019
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Best Business Award 2019

Unionville Heating is once again proud to win #1 Heating And Air Conditioning Contractor in Markham.  The annual Markham Economist & Sun Readers’ Choice Awards …

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