Mahdi Abdurrahman

Williamson & Associates, Inc is a professional consulting firm specializing in construction technology with a primary focus on the weathertight envelope of buildings. Since its inception in 1967, the firm has provided technical assistance to the design and construction communities on a national basis. Our clients consist of building owners, property managers, architects, contractors, lenders and other industry members. Within the field of exterior weatherproofing, Williamson & Associates is capable of providing complete building exterior consulting services on new or existing facilities. Where remedial work is required to address building leakage or durability problems, Williamson & Associates provides services to locate and determine causes of component failures. Capabilities in corrective work include documented investigative surveys, analysis of in-place designs and systems, recommendations for remedial designs and materials, detailing, specifications, bid and contract documents, and assistance in bidding, awarding, administering and inspecting the remedial contract.