AirProHQ
License verified · CSLB

Wu Chung Chieh

1721 S DIAMOND BAR BLVD #A
+1 626-238-9331
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 1105504 · expires June 30, 2027 · Los angeles 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

Wu Chung Chieh, in brief

Wu Chung Chieh is listed here as an HVAC contractor at 1721 S DIAMOND BAR BLVD #A. License 1105504, verified against the CSLB register, covers this contractor through June 2027. Another listed HVAC contractor sits under ½ mile from here.

HVAC contractor
Questions about this contractor

Before you call Wu Chung Chieh

01

Does Wu Chung Chieh hold a valid California license?

Yes. License number 1105504 appears on the CSLB register with an expiry of June 30, 2027. You can confirm it yourself on the official license lookup.

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

Other HVAC contractors near Wu Chung Chieh

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

Verifiedunder ½ mile

Qin HVAC

Diamond Bar, CA 91765