Brothers Contracting Serv LLC
Residential · SeaTac, WA · License #BROTHCS744K6
Active
State-verifiedWhat does verified mean?
- State-verified — Checked against WA L&I records, updated daily.
- Owner-verified — The business claimed this listing and verified ownership — free. Claim this listing
- Proven on Subser — The business runs real jobs through Subser — measured performance, not reviews.
License facts
Brothers Contracting Serv LLC is one of 3 Residential contractors registered in SeaTac, registered with WA L&I since 2026.
- License type
- PLUMBING CONTRACTOR
- Effective date
- May 26, 2026
- Expiration date
- May 26, 2028
- UBI
- 606097415
- Business type
- Limited Liability Company
- Phone
- (253) 398-5314
- Location
- SeaTac, WA 98188
Source: WA L&I contractor registration — verified Aug 12, 2026. Applies to every row above.
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Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Westfield Insurance Co | $6,000 | May 19, 2026 | Continuous — until canceled |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Spinnaker Insurance Company | $1,000,000 | — | May 15, 2026 | May 15, 2027 |
What the bond and insurance requirements mean for homeowners
A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000). This contractor's current filing shows a $6,000 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 |
|---|---|
| Masoa Momura | May 26, 2026 |
| Francisco Alfaro | May 26, 2026 |
What is a Residential contractor licensed to do in Washington?
A residential specialty registration with WA L&I covers certain work on residential structures as defined by the department. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 3 Residential contractors registered in SeaTac.
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Built from Washington State L&I public records, updated Aug 12, 2026. No star ratings or reviews — verification only.