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License verified · CSLB

Mas Service

5083 LONE TREE WAY
+1 888-314-0451
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 498289. 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

Mas Service, in brief

Mas Service runs an HVAC contracting business at 5083 LONE TREE WAY. The CSLB register lists license 498289 for this business. The nearest other listed contractor is under ½ mile away.

HVAC contractor
Questions about this contractor

Before you call Mas Service

01

Is Mas Service a licensed HVAC contractor?

Yes. This business's license, 498289, 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

Other HVAC contractors near Mas Service

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