Masterworks
General · Mercer Island, WA · License #MASTE**813NB
Masterworks is one of 214 General contractors registered in Mercer Island, registered with WA L&I since 2019. Registered longer than roughly 25% of General contractors in Mercer Island. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Jul 25, 2027.
How confident can you be in Masterworks?
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 — Masterworks 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 Mercer Island.
Do they have jobs on record?
Not yet measured — Masterworks 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 2, 2019
- Expiration date
- Aug 3, 2027
- UBI
- 601792047
- Business type
- Corporation
- Phone
- (206) 883-4669
- Location
- Mercer Island, WA 98040
Source: WA L&I contractor registration — checked Nov 12, 2026. Applies to every row above.
Registration is current through Aug 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 |
|---|---|---|---|
| NORTH RIVER INSURANCE COMPANY THE | $30,000 | Jul 23, 2025 | Continuous — until canceled |
| Wesco Insurance Co | $12,000 | Jul 23, 2019 | Canceled Jul 26, 2023 |
| NORTH RIVER INSURANCE COMPANY THE | $12,000 | Jul 23, 2023 | Jul 24, 2025 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Contractors Bonding & Insuranc | $1,000,000 | Adam Thurmond Insurance Agency | Jul 25, 2025 | Jul 25, 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 |
|---|---|
| Susan Williams | Aug 2, 2019 |
| Kenneth R Williams | Aug 2, 2019 |
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 214 General contractors registered in Mercer Island.
Looking for reviews of Masterworks?
Subser doesn't have reviews or star ratings. This page shows Masterworks's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Masterworks? Claim the listing free. Worked with Masterworks? 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.