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License verified · CSLB

4 S Air Inc

9997 LANGSTON STREET
+1 909-576-6586
Verification ledger

What we checked, and what we didn't

Checked against the register at build time (Oct 31, 2026).
California contractor licenseCalifornia Contractors State License Board (CSLB) · number 931194. 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 (Oct 31, 2026). Confirm it yourself — about thirty seconds. See our full verification methodology.Open the official lookup
About

4 S Air Inc, in brief

4 S Air Inc is an HVAC contractor at 9997 LANGSTON STREET. We matched license 931194 to this business on the CSLB register. The nearest other listed contractor is under ½ mile away.

HVAC contractor
Questions about this contractor

Before you call 4 S Air Inc

01

Is 4 S Air Inc a licensed HVAC contractor?

Yes. This business's license, 931194, matches an active entry on the CSLB register. The official lookup lets you verify it directly.

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

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Verified0.7 mi

Doair Inc

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