Cornerstone Constructors LLC
General · Fox Island, WA · License #CORNECL887LM
Active
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
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License facts
Cornerstone Constructors LLC is one of 51 General contractors registered in Fox Island, registered with WA L&I since 2012. Registered longer than roughly half of General contractors in Fox Island. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Mar 12, 2027.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Jun 14, 2012
- Expiration date
- Nov 19, 2026
- UBI
- 603208602
- Business type
- Limited Liability Company
- Phone
- (253) 377-5803
- Location
- Fox Island, WA 98333
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
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Contractors Bonding & Insurance Co | $30,000 | Oct 30, 2024 | Continuous — until canceled |
| Contractors Bonding & Insurance Co | $12,000 | Jun 14, 2012 | Oct 30, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Ohio Security Ins Co | $1,000,000 | WHITFIELD UNITED INSURANCE | Mar 12, 2026 | Mar 12, 2027 |
What the bond and insurance requirements mean for homeowners
Registration as a general contractor in Washington requires a $30,000 surety bond on file with the Department of Labor & Industries. This contractor's current filing shows a $30,000 bond.
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 |
|---|---|
| Jefferymichael Mackay | Jun 14, 2012 |
| Russellcarlisle Mackay | Jun 14, 2012 |
| Kevinrussell Mackay | Oct 18, 2022 |
What is a General contractor licensed to do in Washington?
A general contractor in Washington is registered with the Department of Labor & Industries to perform or oversee work in multiple building trades. General contractors can take on whole projects — remodels, additions, new construction — and can hire specialty subcontractors for individual trades. A $30,000 surety bond and general liability insurance, filed with WA L&I, are required for this registration. Washington currently lists 51 General contractors registered in Fox Island.
Other General contractors in Fox Island, WA
Albrecht Construction
General · Fox Island, WA
License #ALBREC*909DJ
Albrecht Construction LLC
General · Fox Island, WA
License #ALBRECL810J2 · $30,000 bond
Becker Excavation INC
General · Fox Island, WA
License #BECKEEI812C1 · $30,000 bond
Bob The Builder LLC
General · Fox Island, WA
License #BOBBUBL872CA · $30,000 bond
Columbia Pacific Contrg LLC
General · Fox Island, WA
License #COLUMPC810LM · $30,000 bond
Diamond Cut Construction INC
General · Fox Island, WA
License #DIAMOCC773L8 · $30,000 bond
Ecocon INC
General · Fox Island, WA
License #ECOCOI*894K3 · $30,000 bond
Fox Island Excavation LLC
General · Fox Island, WA
License #FOXISIE848PG · $30,000 bond
Browse the directory
Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.