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License verified · CSLB

Diamond Construction And Waterproofing Inc

11100 SEPULVEDA BLVD #561
+1 818-832-9407
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 988451 · expires November 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

Diamond Construction And Waterproofing Inc, in brief

Based at 11100 SEPULVEDA BLVD #561, Diamond Construction And Waterproofing Inc works as an HVAC contractor. CSLB records show license 988451 on file for this business through November 2027. Another listed HVAC contractor sits under ½ mile from here.

HVAC contractor
Questions about this contractor

Before you call Diamond Construction And Waterproofing Inc

01

Does Diamond Construction And Waterproofing Inc hold a valid California license?

Yes. License number 988451 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.Report a correction
Alternatives

Other HVAC contractors near Diamond Construction And Waterproofing Inc

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

Verifiedunder ½ mile

Rooter Hero

Mission Hills, CA 91345