Wesnor Plumbing & Heating LLC
General · Seattle, WA · License #WESNOPH818RC
How confident can you be in Wesnor Plumbing & Heating LLC?
Are they licensed, bonded, and insured?
Active license 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 — this listing hasn't been claimed. Own this business? Claim it free.
Do other pros stand behind them?
No endorsements yet from licensed contractors.
Do they have jobs on record?
Not yet measured — performance data comes from real jobs, not reviews.
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License facts
Wesnor Plumbing & Heating LLC is one of 6,161 General contractors registered in Seattle, registered with WA L&I since 2019. Registered longer than roughly half of General contractors in Seattle. Current filings: $1,000,000 liability coverage through Sep 19, 2027.
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Dec 3, 2019
- Expiration date
- Apr 17, 2027
- UBI
- 604536206
- Business type
- Limited Liability Company
- Phone
- (206) 802-5113
- Location
- Seattle, WA 98103
Source: WA L&I contractor registration — checked Aug 15, 2026. Applies to every row above.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Contractors Bonding & Insuranc | $1,000,000 | A&R INS & FINANCIAL SRVCS LLC | Sep 19, 2025 | Sep 19, 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.
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 |
|---|---|
| Maciej Ostrowski | Dec 3, 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 6,161 General contractors registered in Seattle.
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Browse the directory
Built from Washington State L&I public records, updated Aug 15, 2026. Subser doesn't do star ratings or reviews — just verified records.