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License verified · CSLB

Hartvickson John D

3741 JOAN AVENUE
+1 925-687-1777
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 409642. 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

Hartvickson John D, in brief

You'll find Hartvickson John D providing HVAC contracting work at 3741 JOAN AVENUE. This contractor's CSLB license — number 409642 — checks out on the register. The nearest other listed contractor is under ½ mile away.

HVAC contractor
Questions about this contractor

Before you call Hartvickson John D

01

Is Hartvickson John D a licensed HVAC contractor?

Yes. This business's license, 409642, 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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