Cornerstone Contracting INC
General · Lake Tapps, WA · License #CORNECI854PK
Cornerstone Contracting INC is one of 145 General contractors registered in Lake Tapps, registered with WA L&I since 2015. Registered longer than roughly half of General contractors in Lake Tapps. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Aug 13, 2027.
How confident can you be in Cornerstone Contracting INC?
Are they licensed, bonded, and insured?
Active license, $30,000 bond and $1,000,000 liability on file — checked against WA L&I records, updated daily.
Are they who they say they are?
Not yet verified — Cornerstone Contracting INC hasn't claimed this listing. Own this business? Claim it free.
Do other pros stand behind them?
No endorsements yet from other licensed contractors in Lake Tapps.
Do they have jobs on record?
Not yet measured — Cornerstone Contracting INC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.
Subser doesn't do star ratings or reviews — just verified records. What do these mean?
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Oct 12, 2015
- Expiration date
- Feb 20, 2027
- UBI
- 603544125
- Business type
- Corporation
- Phone
- (253) 217-2862
- Location
- Lake Tapps, WA 98391
Source: WA L&I contractor registration — checked Sep 26, 2026. Applies to every row above.
Registration is current through Feb 2027.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Western Surety Co | $30,000 | Sep 22, 2024 | Continuous — until canceled |
| NORTH RIVER INSURANCE COMPANY THE | $12,000 | Sep 22, 2021 | Canceled Oct 26, 2024 |
| Navigators Ins Co | $12,000 | Jun 12, 2020 | Canceled Sep 22, 2021 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Contractors Bonding & Insuranc | $1,000,000 | A & M INS SERVICES INC | Aug 13, 2026 | Aug 13, 2027 |
| Contractors Bonding & Insuranc | $1,000,000 | Guardian Angel Insurance | Jan 16, 2026 | Jan 16, 2027 |
What the bond and insurance requirements mean for homeowners
Washington requires general contractors to file a $30,000 surety bond with the Department of Labor & Industries as a condition of registration. 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 |
|---|---|
| Sergey N Kolomiyets | Oct 12, 2015 |
| Nikolay P Kolomiyets | Oct 12, 2015 |
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. The registration requires a $30,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 145 General contractors registered in Lake Tapps.
Looking for reviews of Cornerstone Contracting INC?
Subser doesn't have reviews or star ratings. This page shows Cornerstone Contracting INC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Cornerstone Contracting INC? Claim the listing free. Worked with Cornerstone Contracting INC? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Sep 26, 2026. Subser doesn't do star ratings or reviews — just verified records.