Jobsite Stud Welding INC
Welding and Ornamental Metal · Based in Chino, CA · Licensed in Washington · License #JOBSISW972RJ
Jobsite Stud Welding INC has been registered with WA L&I since 2003, based in Chino, CA. Current filings: $1,000,000 liability coverage through Apr 15, 2027. Principals on record since 2003.
How confident can you be in Jobsite Stud Welding INC?
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 — Jobsite Stud Welding 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 Chino.
Do they have jobs on record?
Not yet measured — Jobsite Stud Welding 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.
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Dec 11, 2003
- Expiration date
- Dec 19, 2027
- UBI
- 602326327
- Business type
- Corporation
- Phone
- (909) 334-1216
- Location
- Chino, CA 91710
Source: WA L&I contractor registration — checked Aug 18, 2026. Applies to every row above.
Registration is current through Dec 2027.
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 |
|---|---|---|---|---|
| West American Ins Co | $1,000,000 | BROWN/BROWN OF WA INC(SEATTLE) | Apr 15, 2023 | Apr 15, 2027 |
What the bond and insurance requirements mean for homeowners
Washington requires specialty contractors to file a $15,000 surety bond with the Department of Labor & Industries as a condition of registration ($30,000 for general contractors).
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 |
|---|---|
| Jerry (jay) E Koski | Dec 11, 2003 |
| Robert William Butcher | Oct 3, 2016 |
| Andrew Quall | Dec 11, 2003 |
| Jamie M Koski | Dec 11, 2003 |
| Lisa L Quall | Dec 11, 2003 |
What is a Welding and Ornamental Metal contractor licensed to do in Washington?
Welding and ornamental metal contractors fabricate and install metalwork such as handrails, guardrails, gates, stairs, and decorative iron pieces. Their work spans shop fabrication and on-site welding, repair, and installation. The registration requires a $15,000 surety bond and general liability insurance on file with WA L&I.
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Subser doesn't have reviews or star ratings. This page shows Jobsite Stud Welding INC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
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Built from Washington State L&I public records, updated Aug 18, 2026. Subser doesn't do star ratings or reviews — just verified records.