AirProHQ
License verified · CSLB

M-23 Mechanical Systems

3470 FOSTORIA WY STE D
+1 925-730-9020
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 1083192 · expires November 30, 2027 · Contra costa County. Matched to this business on name.Verified
Business contactphone, email and website on file, from public records.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

M-23 Mechanical Systems, in brief

M-23 Mechanical Systems operates as an HVAC contractor at 3470 FOSTORIA WY STE D. Its CSLB license, number 1083192, is on the register through November 2027. Another listed HVAC contractor sits 2.0 mi from here.

HVAC contractor
Questions about this contractor

Before you call M-23 Mechanical Systems

01

Does M-23 Mechanical Systems hold a valid California license?

Yes. License number 1083192 appears on the CSLB register with an expiry of November 30, 2027. You can confirm it yourself on the official license lookup.

Sources: California Contractors State License Board (CSLB) register · contact details from permit filings and public records.Report a correction
Alternatives

Other HVAC contractors near M-23 Mechanical Systems

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