Specialty Mechanical Services

Backflow Specialty · Everett, WA · License #SPECIMS777DG

Suspended since Feb 1, 2026

State-verifiedWhat does verified mean?
  • State-verified Checked against WA L&I records, updated daily.
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License facts

Specialty Mechanical Services is one of 4 Backflow Specialty contractors registered in Everett, registered with WA L&I since 2023.

License type
PLUMBING CONTRACTOR
Effective date
Apr 1, 2023
Expiration date
Apr 1, 2027
Suspend date
Feb 1, 2026
UBI
604943377
Business type
Individual
Phone
(425) 512-9761
Location
Everett, WA 98204

Source: WA L&I contractor registration — verified Aug 12, 2026. Applies to every row above.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

To register as a specialty contractor in Washington, a business must file a $15,000 surety bond with the Department of Labor & Industries; general contractors file $30,000.

The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.

Principals

NameStart date
William WalkerMar 7, 2023
What is a Backflow Specialty contractor licensed to do in Washington?

A backflow specialty contractor in Washington is registered with the Department of Labor & Industries under the state's specialty contractor classification for this trade — the baseline consumer protection Washington requires before a contractor may advertise or perform work. A specialty registration covers work within its trade; projects spanning multiple trades are handled by a registered general contractor. As a condition of registration, contractors in this category file a $15,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 4 Backflow Specialty contractors registered in Everett.

Other Backflow Specialty contractors in Everett, WA

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Built from Washington State L&I public records, updated Aug 12, 2026. No star ratings or reviews — verification only.