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License verified · CSLB

Diamond Mechanical LLC

2034 THICKET PL
+1 925-584-1743
Verification ledger

What we checked, and what we didn't

Checked against the register at build time (Nov 6, 2026).
California contractor licenseCalifornia Contractors State License Board (CSLB) · number 1134349 · expires March 31, 2027 · Contra costa County. Matched to this business on name.Verified
Business contactphone on file.On file
Public reviewsNo public review profile in our data. License-register listings often have none — ask for two recent local references instead.None found
Insurance & bondingNot checked by AirProHQ. Ask for the certificate of insurance before work starts — the state requires cover to hold the license, but we don't see the policy.Ask them
WorkmanshipNot inspected. A license says who is allowed to do the job, not how well it was done.Ask for references
Checked against the register at build time (Nov 6, 2026). Confirm it yourself — about thirty seconds. See our full verification methodology.Open the official lookup
About

Diamond Mechanical LLC, in brief

Based at 2034 THICKET PL, Diamond Mechanical LLC works as an HVAC contractor. CSLB records show license 1134349 on file for this business through March 2027. We list another contractor just under ½ mile from this one.

HVAC contractor
Questions about this contractor

Before you call Diamond Mechanical LLC

01

Has Diamond Mechanical LLC's contractor license been verified?

Confirmed — the CSLB register carries license 1134349 for this business with an expiry of March 31, 2027. See it yourself via the official license lookup.

Sources: California Contractors State License Board (CSLB) register.Report a correction
Alternatives

Other HVAC contractors near Diamond Mechanical LLC

Sorted by straight-line distance from this office. Same license check on every one.