Marc Viau Mechanical, Cornwall, Rheem Furnace install repair maintenance
Marc Viau Mechanical, Cornwall, Rheem Furnaces Lower Your Energy Bill
Marc Viau Mechanical, Cornwall, Marquis Fireplace Install Repair Maintenance
Marc Viau Mechanical, Cornwall, Rheem Air Conditioner For your comfort


At Marc Viau Mechanical We Know Water Heaters


At Marc Viau Mechanical we understand your comfort needs are top priority and that everyone’s desires are different, which is why we’ve got you covered. We are the largest water heating company in Cornwall and the area.

We have the right products, the right services and the right people to make you feel right at home.

Call us at 613.932.8180 to discuss the best water heater to meet your needs.



Rheem Tankless Water Heaters - Product Overview



Rheem Natural Gas Water Heaters - Product Overview