Mark Backstrom & CO
Concrete · Bothell, WA · License #MARKBC*154PS
Expired since Mar 19, 2022
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
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License facts
Mark Backstrom & CO is one of 16 Concrete contractors registered in Bothell, registered with WA L&I since 1985.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Oct 10, 1985
- Expiration date
- Mar 19, 2022
- Suspend date
- Apr 21, 2021
- UBI
- 600591877
- Business type
- Individual
- Phone
- (425) 486-0541
- Location
- Bothell, WA 98011
Source: WA L&I contractor registration — verified Aug 13, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
What the bond and insurance requirements mean for homeowners
Washington requires specialty contractors to file a $15,000 surety bond with the Department of Labor & Industries as a condition of registration ($30,000 for general contractors).
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
| Name | Start date |
|---|---|
| Mark Backstrom | Jan 1, 1980 |
What is a Concrete contractor licensed to do in Washington?
A concrete specialty contractor is registered with WA L&I to form, pour, and finish concrete — foundations, slabs, driveways, sidewalks, and similar flatwork or structural concrete. The registration covers concrete work only. The registration requires a $15,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 16 Concrete contractors registered in Bothell.
Other Concrete contractors in Bothell, WA
All Concrete Surfaces LLC
Concrete · Bothell, WA
License #ALLCOCS934BR · $15,000 bond
Amk Construction LLC
Concrete · Bothell, WA
License #AMKCOCL771RO · $15,000 bond
Gwen & Bros Construction LLC
Concrete · Bothell, WA
License #GWENBBC815N3 · $15,000 bond
Hernandez Concrete
Concrete · Bothell, WA
License #HERNAC*852L3 · $15,000 bond
Browse the directory
Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.