Nalco Company LLC
General · Based in Naperville, IL · Licensed in Washington · License #NALCOCL843JH
Registration expired per WA L&I as of Mar 5, 2025.
Nalco Company LLC has been registered with WA L&I since 2016, based in Naperville, IL. Principals on record since 2016.
How confident can you be in Nalco Company LLC?
Are they licensed, bonded, and insured?
Registration expired per WA L&I as of Mar 5, 2025.
Are they who they say they are?
Not yet verified — Nalco Company LLC 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 Naperville.
Do they have jobs on record?
Not yet measured — Nalco Company LLC 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
- Apr 8, 2016
- Expiration date
- Mar 5, 2025
- Suspend date
- Dec 1, 2024
- UBI
- 604516883
- Business type
- Limited Liability Company
- Phone
- (360) 750-6512
- Location
- Naperville, IL 60563
Source: WA L&I contractor registration — checked Aug 17, 2026. Applies to every row above.
Registration lapsed Mar 2025 per WA L&I records.
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Claim this free listingBond & insurance on file
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.
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 |
|---|---|
| George Charles Hamilton | Apr 8, 2016 |
| Melissa Anne Blais | Jul 30, 2025 |
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.
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Subser doesn't have reviews or star ratings. This page shows Nalco Company LLC'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 17, 2026. Subser doesn't do star ratings or reviews — just verified records.