Some of our top rated boiler repair specialists in Cochrane, Alberta
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DRG Heating and Air Conditioning – Done Right. Guaranteed. DRG is a locally owned and operated HVAC company serving Calgary and surrounding communities, with over 22 years of hands-on experience in both residential service and large-scale commercial work. Before founding DRG, owner Mike Koroll worked in the field on national commercial contracts—performing preventive maintenance, seasonal inspections, system diagnostics, and repairs across multiple facilities simultaneously. That ground-level experience in complex, high-accountability environments is what DRG was built on. For homeowners, that means you’re getting a technician who has seen and solved it all—from high-efficiency installations and furnace repairs to air conditioning replacements and everything in between. We treat your home with the same precision and care we bring to large-scale commercial work, because no job is too small to do right. At DRG, there are no shortcuts and no upselling. We show up, assess honestly, and get the job done right the first time.
