Kornerstone Concrete

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

Expired since Nov 19, 2023

State-verifiedWhat does verified mean?
  • State-verified Checked against WA L&I records, updated daily.
  • Owner-verified The business claimed this listing and verified ownership — free. Claim this listing
  • Proven on Subser The business runs real jobs through Subser — measured performance, not reviews.

License facts

Kornerstone Concrete is one of 29 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.

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 — verified Aug 14, 2026. Applies to every row above.

Is this your business? Update your info and take booking requests.

Claim this free listing

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
Sosefonusi 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 29 Concrete contractors registered in Auburn.

Other Concrete contractors in Auburn, WA

Browse the directory

Built from Washington State L&I public records, updated Aug 14, 2026. No star ratings or reviews — verification only.