AirProHQ
License verified · Washington L&I

Great Sun Corp

5930 1st Ave S
+1 206-329-8027
Verification ledger

What we checked, and what we didn't

Checked against the register at build time (Oct 31, 2026).
Washington contractor licenseWashington State Department of Labor & Industries · number GREATSC951D1 · expires April 5, 2027. 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

Great Sun Corp, in brief

You'll find Great Sun Corp providing HVAC contracting work at 5930 1st Ave S. This contractor's Washington L&I license — number GREATSC951D1 — checks out on the register through April 2027. We list another contractor just under ½ mile from this one.

HVAC contractor
Questions about this contractor

Before you call Great Sun Corp

01

Has Great Sun Corp's contractor license been verified?

Confirmed — the Washington L&I register carries license GREATSC951D1 for this business with an expiry of April 5, 2027. See it yourself via the official license lookup.

Sources: Washington State Department of Labor & Industries register.Report a correction
Alternatives

Other HVAC contractors near Great Sun Corp

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