Onyx Building Group, Inc. is a California licensed C9 and C35 Woman Owned Small Business specializing in Drywall, Metal Framing, Lath, Plaster, EIFS and Air Barrier Systems. Our industries include, but are not limited to, Education, Office and Mid-Rise Buildings, Hospitality and Federal Construction. 
  • Cold Formed & Light Gauge Metal Framing

    Gypsum Wallboard Assemblies

    Lath & Plaster


    Sprayed on Fireproofing

    Air/Vapor Barrier Systems


Onyx Building Group Inc provides consulting and inspection services for lath and plaster on residential homes.

Please fill out the adjacent form for a consultation. For other inquiries, feel free to call (619) 324-1440 or contact

555 Raleigh Ave El Cajon, CA 92020 | P: (619) 324-1440 F: (619) 324-1441
Department of General Services Small Business Certification # 1547520 (exp 2/28/19)
California Public Utilities Commission Woman-Owned Business Certification # 14040093 (exp 7/17/19)
© 2019 Copyright Onyx Building Group Lic #957645. All Rights Reserved