Roofing Repair, Maintenance & Replacement

Since 1971, Alcal Specialty Contracting has been installing roofs on thousands of commercial and industrial buildings. As the go-to expert in roof maintenance and warranty repairs, Alcal has an established history of installing reliable and quality products.

Our skilled professional and highly trained employees are committed to identifying and repairing any current or unforeseen roofing problems. Whether you require a roof inspection and analysis, repairs or replacement, we can provide the same quality and service you've come to expect from the Alcal team.

Brands We Service

Alcal is an authorized installer for all major brands including Carlisle, Firestone, GAF, Malarkey, JM, Sarnafil, Siplast and Suprema.

Coatings: GACO, Kemper, Metacrylics, NeoGuard, Tropical and Western Colloid.

Who We Serve

  • Commercial Property Owners
  • Commercial Property Managers
  • School Districts and Colleges
  • Medical Facilities
  • Industrial Facilities
  • High Tech Facilities


  • Construction Employers Association
  • Associated Roofing Contractors of the Bay Area
  • National Roofing Contractors Association
  • Western States Roofing Contractors Association
  • BIA Bay Area
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