Columbia Groundwork INC
General · Castle Rock, WA · License #COLUMGI828N1
Columbia Groundwork INC is one of 164 General contractors registered in Castle Rock, registered with WA L&I since 2018. Registered longer than roughly half of General contractors in Castle Rock. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Jun 1, 2027.
How confident can you be in Columbia Groundwork 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 — Columbia Groundwork 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 Castle Rock.
Do they have jobs on record?
Not yet measured — Columbia Groundwork 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
- Aug 21, 2018
- Expiration date
- Sep 28, 2028
- UBI
- 604303363
- Business type
- Corporation
- Phone
- (907) 441-5679
- Location
- Castle Rock, WA 98611
Source: WA L&I contractor registration — checked Nov 12, 2026. Applies to every row above.
Registration is current through Sep 2028.
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 |
|---|---|---|---|
| Ohio Cas Ins Co | $30,000 | Jun 1, 2025 | Continuous — until canceled |
| Lexon Ins Co | $30,000 | Jul 1, 2024 | Continuous — until canceled |
| Lexon Ins Co | $12,000 | Jun 1, 2019 | Jul 1, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| West American Ins Co | $1,000,000 | ARTHUR STRAND INS INC | Jun 1, 2026 | Jun 1, 2027 |
What the bond and insurance requirements mean for homeowners
A $30,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for every general contractor in Washington. 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 |
|---|---|
| Ryane Michael Olin | Aug 21, 2018 |
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. Washington requires a $30,000 surety bond and general liability insurance for this registration. Washington currently lists 164 General contractors registered in Castle Rock.
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Subser doesn't have reviews or star ratings. This page shows Columbia Groundwork INC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Columbia Groundwork INC? Claim the listing free. Worked with Columbia Groundwork INC? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Nov 12, 2026. Subser doesn't do star ratings or reviews — just verified records.