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License verified · CSLB

Sinclair Air Systems

1935 MCKINLEY AVE STE D
+1 626-331-4541
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 724978 · expires July 31, 2028 · Los angeles 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

Sinclair Air Systems, in brief

Based at 1935 MCKINLEY AVE STE D, Sinclair Air Systems works as an HVAC contractor. CSLB records show license 724978 on file for this business through July 2028. The nearest other listed contractor is 4.6 mi away.

HVAC contractor
Questions about this contractor

Before you call Sinclair Air Systems

01

Is Sinclair Air Systems a licensed HVAC contractor?

Yes. This business's license, 724978, matches an active entry on the CSLB register with an expiry of July 31, 2028. The official lookup lets you verify it directly.

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

Other HVAC contractors near Sinclair Air Systems

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