Over 30+ years ago, Duane Duncan founded Duncan's Heating & Cooling Corporation, a small residential heating & cooling company. We then evolved into an industrial HVAC service contractor, thus creating another business, Niagara Industrial Mechanical Services. By being committed to meeting the mechanical needs of the industrial business sector and to building long-lasting relationships with our customers through quality workmanship and satisfaction we have become a company recognized for its excellence in industry. Today, we are a full-service mechanical contractor offering a wide range of services including pipe fitting, fabrication & structural welding, electrical, HVAC, rigging, millwright, and dry ice blasting. We are now in the business of building medical machines.