Tom Wirtz Siding CO
Siding · Renton, WA · License #TOMWIS*225ND
Registration expired per WA L&I as of Jul 7, 2020.
Tom Wirtz Siding CO is one of 27 Siding contractors registered in Renton, registered with WA L&I since 1978. Registered longer than roughly 75% of Siding contractors in Renton. Principals on record since 1978.
How confident can you be in Tom Wirtz Siding CO?
Are they licensed, bonded, and insured?
Registration expired per WA L&I as of Jul 7, 2020.
Are they who they say they are?
Not yet verified — Tom Wirtz Siding CO 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 Renton.
Do they have jobs on record?
Not yet measured — Tom Wirtz Siding CO 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 4, 1978
- Expiration date
- Jul 7, 2020
- Suspend date
- Jul 4, 2020
- UBI
- 600287541
- Business type
- Individual
- Phone
- (425) 253-3828
- Location
- Renton, WA 98058
Source: WA L&I contractor registration — checked Nov 12, 2026. Applies to every row above.
Registration lapsed Jul 2020 per WA L&I records.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
What the bond and insurance requirements mean for homeowners
To register as a specialty contractor in Washington, a business must file a $15,000 surety bond with the Department of Labor & Industries; general contractors file $30,000.
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 |
|---|---|
| Thomas (tom) N Wirtz | Aug 4, 1978 |
What is a Siding contractor licensed to do in Washington?
A siding specialty contractor is registered with WA L&I to install and repair exterior siding — fiber cement, vinyl, wood, and similar cladding, along with associated trim and weather barriers. As a condition of registration, contractors in this category file a $15,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 27 Siding contractors registered in Renton.
Looking for reviews of Tom Wirtz Siding CO?
Subser doesn't have reviews or star ratings. This page shows Tom Wirtz Siding CO's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Tom Wirtz Siding CO? Claim the listing free. Worked with Tom Wirtz Siding CO? 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.