In addition to engineering and construction work for commercial and industrial projects, BONAR is known throughout the industry as experts in refrigeration and low temperature design. BONAR provides refrigeration contracting, 24-hour refrigeration service, parts and equipment, computer control systems, and Process Safety Management. That's why when Georgia Freezer Company, Sanderson Farms, Publix Supermarkets - and literally hundreds more - need refrigeration expertise - they come to BONAR.