Cornerstone Home Improv LLC

General · Walla Walla, WA · License #CORNEHI793BF

Registration expired per WA L&I as of Jan 13, 2023.

What do these mean?

Cornerstone Home Improv LLC is one of 535 General contractors registered in Walla Walla, registered with WA L&I since 2021. Registered longer than roughly 25% of General contractors in Walla Walla. Principals on record since 2021.

How confident can you be in Cornerstone Home Improv LLC?

Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Jan 13, 2023.

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

Are they who they say they are?

Not yet verified — Cornerstone Home Improv 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 Walla Walla.

Do they have jobs on record?

Not yet measured — Cornerstone Home Improv 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. What do these mean?

License facts

License type
CONSTRUCTION CONTRACTOR
Effective date
Jan 13, 2021
Expiration date
Jan 13, 2023
Suspend date
Dec 4, 2021
UBI
604650836
Business type
Limited Liability Company
Phone
(541) 300-9443
Location
Walla Walla, WA 99362

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

Registration lapsed Jan 2023 per WA L&I records.

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Bond & insurance on file

What the bond and insurance requirements mean for homeowners

Washington requires general contractors to file a $30,000 surety bond with the Department of Labor & Industries as a condition of registration.

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
Zachary Martin CantrellJan 6, 2021
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. The registration requires a $30,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 535 General contractors registered in Walla Walla.

Looking for reviews of Cornerstone Home Improv LLC?

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