Swimming pool contractor (C-53) in Glendora, CA

There are 3 Swimming pool contractor (C-53) licenses with an address of record in Glendora, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.7% of the 450 such licenses statewide; Glendora ranks #36 of 215 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 91740 (2), 91741 (1). Most list Los Angeles County. By business type: Sole Owner 2, Corporation 1. The median first-issue year is 2017; the oldest license dates from 2015. 3 of them come up for renewal or expiration in the next 12 months, so re-check status before you sign a contract.

What a Swimming pool contractor (C-53) license covers

Swimming Pool (C-53) covers building and repairing swimming pools, spas and hot tubs, including excavation, forms, plumbing and equipment that are part of the pool.

Note: C-53 is pool construction and repair. Routine pool cleaning (skimming, brushing, chemicals) generally isn't licensed by CSLB; equipment and plumbing repair is contractor work. Under California's minor-work exemption, jobs under $1,000 (labor and materials combined) that need no building permit generally don't require a CSLB license.

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.

Swimming pool contractor (C-53) licenses in Glendora

Showing 3 of 3, A to Z. Listing order is alphabetical, not a recommendation.