Western Insulation is a part of Masco Contractor Services which is a group of independent companies,...
Western Insulation is a part of Masco Contractor Services which is a group of independent companies, which are subsidiaries of Masco Corporation (NYSE: MAS). Masco, a Fortune 500 company, is one of the world's leading manufacturers of home improvement and building products and a leading provider of services that include installation of insulation and other building products. Masco Contractor Services has locations throughout California and our employees are drug tested, background checked, insured, and trained.
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