Plumbers in Diamond Bar, CA
Compare 11 plumbers in Diamond Bar by HomeProFax Score v2 (license, discipline, permits, BBB + HomeProFax reviews). Always verify license status with the issuing board before hiring.
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Plumbing Contractor · 14 permitsActive license Score 88 Full reportJ H Plumbing
Plumbing Contractor · 5 permitsActive license Score 83 Full reportExpedite Plumbing
Plumbing Contractor · 1 permitsActive license Score 78 Full reportGalvan Plumbing
Plumbing Contractor · 1 permitsActive license Score 78 Full reportJones Plumbing
Plumbing Contractor · 2 permitsActive license Score 78 Full reportAdvanced Tankless And Plumbing
Plumbing ContractorActive license Score 73 License record Score based on limited dataAll Day Drains
Plumbing ContractorActive license Score 73 License record Score based on limited dataElite Pipe P
Plumbing ContractorActive license Score 73 License record Score based on limited dataJay's Plumbing
Plumbing ContractorActive license Score 73 License record Score based on limited dataVanguard Plumbing
Plumbing ContractorActive license Score 73 License record Score based on limited dataSteven E Wolverton
Journeyman PlumberLicense expired Score 50 Limited data Score based on limited data
How to hire in Diamond Bar
Check the license is active, look at permit history for jobs like yours, read the BBB and HomeProFax review components in the score breakdown, and use the outbound Google/BBB links on each profile to cross-check external reviews (we link out — we do not store Angi, Yelp or Google ratings).
Plumbers in Diamond Bar — common questions
How do I check if a Diamond Bar contractor is licensed?
Open any profile above to see its license status, issuing board and expiry date from public records, then verify it with the California licensing board before you hire. You can also search a business name or license number on HomeProFax.
How many plumbers are listed in Diamond Bar?
This page lists 11 plumbers in Diamond Bar, ranked by HomeProFax Score v2.
What does the HomeProFax score mean?
The score (0-100) sums license status (35), discipline and legal flags (20), permit history (20), and BBB plus HomeProFax homeowner reviews (25). It is not a rating of workmanship. See how scores work.