Alta Loma Plumbing
- 10722 Arrow Rte #812, Rancho Cucamonga, CA 91730
- (909) 944-6637
- September 15, 2026
Based in Hemet, Riverside County, Mcs Plumbing holds California contractor license #613357, classified C36 (Plumbing). At the time this listing was compiled, the license was active with no suspension on record.
The C-36 classification covers complete plumbing systems — supply lines, drains and vents, gas lines, water heaters and fixtures.
Working in southwest Riverside County: A lot of newer neighborhoods here sit under HOA architectural review, which adds an approval step before exterior work can start.
Before you hire any plumbing contractor: For a repipe, ask what material is being used and how many walls have to be opened — and who is responsible for patching them afterwards.
License status can change at any time. Confirm license #613357 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 — Mcs Plumbing 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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