Alcal Specialty Contracting, Inc. (Alcal) is a subsidiary of Pacific Coast Building Products, Inc. a family owned business si ... nce 1953. Alcal is a large sub-contracting firm and privately held, diversified specialty contractor that has operated continuously since 1971. It employs over 900 people and has branches in California, Nevada, Arizona, Colorado, Washington, and Hawaii. Its installed products include roofing, waterproofing, insulation, firestop, contract glazing, and garage doors for both commercial and residential construction. The company is a signatory to several unions including the Roofers, Glaziers, and Carpenters Union. read more