Architects, Estimators, Construction Managers providing services in COMMERCIAL | INDUSTRIAL | FINANCIAL | HEALTH CARE | MULTI-FAMILY HOUSING Established in 1954 by James A. Winter, Winter Construction, Inc. has become one of the largest commercial, industrial and institutional General Contractors in Northwest Illinois. As the business has grown, so has the ability of our experienced team to provide our clients, both old and new alike, with larger and more sophisticated building programs for a wide variety of building types over a continually broader geographical area. Competitive bid and negotiated Design/Build work, both for public and private sectors, constitute almost equal sources of annual sales, reflecting both the firms cost competitiveness and customer oriented management philosophy. A commitment to quality craftsmanship, on-time project completion, and a sincere concern for customer satisfaction has fueled our growth in the market and continues to be the cornerstone of our corporate philosophy.