General building contractor in Walnut, CA

There are 36 General building contractor licenses with an address of record in Walnut, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.3% of the 14,299 such licenses statewide; Walnut ranks #102 of 874 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 91789 (35), 91788 (1). Most list Los Angeles County. By business type: Corporation 30, Sole Owner 6. The median first-issue year is 2018; the oldest license dates from 2015. 17 of them come up for renewal or expiration in the next 12 months, so re-check status before you sign a contract.

What a General building contractor license covers

General Building (B) covers framed structures for shelter or occupancy. A B contractor may take a prime contract for a project that involves at least two unrelated building trades, or framing/carpentry alone; plumbing, electrical or HVAC alone needs that specialty license or the B contractor must hold it.

How to verify a license

Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.

General building contractor licenses in Walnut

Showing 36 of 36, A to Z. Listing order is alphabetical, not a recommendation.