Rc Squared
- 2897 Valencia Ave, San Bernardino, CA 92404
- (310) 497-9526
- September 19, 2026
Frostline Construction is a licensed California contractor based in Rimforest, San Bernardino County, holding CSLB license #1152527 under classification B — General Building. The license was active and clear when this listing was compiled.
A general contractor’s work is coordination as much as construction: framing, roofing, electrical, plumbing, drywall, finish carpentry and inspection sign-off all have to happen in sequence, and the general is the one holding that sequence together. Typical jobs run from a single-room addition to a full structural remodel.
Working in the local mountain communities: Most of these communities sit in a Very High Fire Hazard Severity Zone, which brings ember-resistant construction requirements into a lot of exterior work.
Before you hire any general contractor: Ask which parts of the job are being subcontracted and to whom. A general is entitled to subcontract, but you are entitled to know whether the electrician on your addition is licensed, and to get conditional lien releases as each sub is paid.
License status can change at any time. Confirm license #1152527 is current, and check bond and workers’ compensation coverage, using the CSLB license lookup before signing a contract or paying a deposit.
This profile was compiled from California State License Board public records and is unclaimed — Frostline Construction has not added its own details. Are you the owner? Claim this listing to add photos, services and a description of your work, or contact us to have it removed.
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