CA Pool Builders

Pool Builders in Ontario, CA

15 contractors with a CSLB C-53 Swimming Pool license list a business address in Ontario (San Bernardino County). All are active as of this date. Listed alphabetically. Nobody pays to be here.

Ontario at a glance. 8 of 15 carry workers' compensation insurance; the other 7 have told CSLB they have no employees. The typical builder here has been licensed 8 years; 7 for ten years or more, and 1 for less than two. 3 also hold a B General Building license, which lets them take on the house-side work that often comes with a pool.

CSLB data as of November 6, 2026 · Published by Randy Beard

Hiring a pool builder in Ontario

A license only tells you the builder is allowed to do the work. It says nothing about the contract you are about to sign, and that contract decides what happens if the shell cracks, the plaster fails or the job stops halfway. California law caps the down payment on a pool at $1,000 or 10 percent, whichever is less, and no payment may run ahead of the work done. Read the before-you-sign checklist.

More builders nearby: all of San Bernardino County.

Builders are grouped by the city on their CSLB mailing address, which may not be where they work. Source: CSLB Statewide Public Database Files, November 6, 2026.