AirProHQ
License verified · Washington L&I

Master Mechanical LLC

8110 55th Ave SE
+1 360-628-1569
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 MASTEML83373 · expires November 17, 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

Master Mechanical LLC, in brief

Master Mechanical LLC operates as an HVAC contractor at 8110 55th Ave SE. Its Washington L&I license, number MASTEML83373, is on the register through November 2027. The closest other contractor in our directory is 1.7 mi away.

HVAC contractor
Questions about this contractor

Before you call Master Mechanical LLC

01

Is Master Mechanical LLC licensed in Washington?

The Washington L&I register corroborates license MASTEML83373 for Master Mechanical LLC with an expiry of November 17, 2027. Verify it yourself on the official lookup.

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

Other HVAC contractors near Master Mechanical LLC

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