Marc Viau Mechanical, Cornwall, Rheem Furnaces Lower Your Energy Bill
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Marc Viau Mechanical, Cornwall, Rheem Air Conditioner For your comfort
Marc Viau Mechanical, Cornwall, Rheem Hot Water Heaters

Why Choose Us as your Heating & Cooling Company?

Professional Workmanship:

We take huge pride in our service and maintenance. We promise to leave your house or place of business better then when we walked in the door.

Fully Licensed:

Our HVAC & Refrigeration technicians are full licensed professionals with many years of experience to best serve your needs.

Emergency Service:

Serving Cornwall and surrounding areas.

Written Guarantees:

Workmanship backed by our company and manufacturer guarantee.

Up-Front Pricing:

You'll always know the pricing that you're receiving is very competitive and service is guaranteed.

Free Estimates:

On all your HVAC, Air Conditioning and Refrigeration needs -- Residential and Commercial equipment.

Polite, Friendly and Helpful:

Committed to helping with all of your Commercial and Residential HVAC needs.

Energy Efficiency Experts:

Able to recommend the latest heating & air conditioning technology to save you on your heating bills year after year.


Dedicated to maintaining the highest standards of integrity.

Clean and Tidy:

We'll leave your home or business as tidy as we found it.

Satisfaction Guaranteed Heating & Air Conditioning Service:

We'll make your equipment work correctly and give you the advise that you need to make sure the situation is corrected.