Thermal Control INC

General · Vashon, WA · License #THERMCI861P9

Registration expired per WA L&I as of Oct 29, 2022.

What do these mean?

Thermal Control INC is one of 207 General contractors registered in Vashon, registered with WA L&I since 2014. Registered longer than roughly half of General contractors in Vashon. Principals on record since 2014.

How confident can you be in Thermal Control INC?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Oct 29, 2022.

Source:License facts on this pageVerify at WA L&I

Are they who they say they are?

Not yet verified — Thermal Control 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 Vashon.

Do they have jobs on record?

Not yet measured — Thermal Control 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. What do these mean?

License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Oct 29, 2014
Expiration date
Oct 29, 2022
Suspend date
Aug 27, 2021
UBI
601001112
Business type
Corporation
Phone
(206) 391-8780
Location
Vashon, WA 98070

Source: WA L&I contractor registration — checked Sep 28, 2026. Applies to every row above.

Registration lapsed Oct 2022 per WA L&I records.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

To register as a general contractor in Washington, a business must file a $30,000 surety bond 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

NameStart date
John Patterson BlairOct 29, 2014
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. As a condition of registration, contractors in this category file a $30,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 207 General contractors registered in Vashon.

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Subser doesn't have reviews or star ratings. This page shows Thermal Control 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 Sep 28, 2026. Subser doesn't do star ratings or reviews — just verified records.