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License verified · CSLB

Keystone Mechanical LLC

1051 LINDA DRIVE
+1 408-529-0311
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 1028816 · expires March 31, 2028 · Santa clara 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

Keystone Mechanical LLC, in brief

Keystone Mechanical LLC is listed here as an HVAC contractor at 1051 LINDA DRIVE. License 1028816, verified against the CSLB register, covers this contractor through March 2028. We list another contractor just under ½ mile from this one.

HVAC contractor
Questions about this contractor

Before you call Keystone Mechanical LLC

01

Has Keystone Mechanical LLC's contractor license been verified?

Confirmed — the CSLB register carries license 1028816 for this business with an expiry of March 31, 2028. See it yourself via the official license lookup.

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

Other HVAC contractors near Keystone Mechanical LLC

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