Kornerstone Concrete

Concrete · Auburn, WA · License #KORNEC*811L7

Registration expired per WA L&I as of Nov 19, 2023.

What do these mean?

Kornerstone Concrete is one of 30 Concrete contractors registered in Auburn, registered with WA L&I since 2019. Registered longer than roughly half of Concrete contractors in Auburn. Principals on record since 2019.

How confident can you be in Kornerstone Concrete?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Nov 19, 2023.

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

Are they who they say they are?

Not yet verified — Kornerstone Concrete 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 Auburn.

Do they have jobs on record?

Not yet measured — Kornerstone Concrete 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
Jun 27, 2019
Expiration date
Nov 19, 2023
Suspend date
Nov 15, 2022
UBI
604467918
Business type
Individual
Phone
(425) 496-4125
Location
Auburn, WA 98001

Source: WA L&I contractor registration — checked Nov 13, 2026. Applies to every row above.

Registration lapsed Nov 2023 per WA L&I records.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (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

NameStart date
Sosefo Nusi TatolaJun 27, 2019
What is a Concrete contractor licensed to do in Washington?

A concrete specialty contractor is registered with WA L&I to form, pour, and finish concrete — foundations, slabs, driveways, sidewalks, and similar flatwork or structural concrete. The registration covers concrete work only. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 30 Concrete contractors registered in Auburn.

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Subser doesn't have reviews or star ratings. This page shows Kornerstone Concrete'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 Nov 13, 2026. Subser doesn't do star ratings or reviews — just verified records.