Name: CORNERSTONE EXCAVATING INC
Address: POBOX 928, WASHINGTON, IA, 52353, US
Telephone: (319) 653-3957

License tenure

Under 1 yr

IA General Contractor avg: Under 1 yr

Bond

Not published by the state

Trust score

Based on license status, bond, and profile signals

About this business

General Contractor

For General Contractor work in WASHINGTON, WASHINGTON County (52353) and nearby Iowa communities, CORNERSTONE EXCAVATING INC maintains an active license with Iowa regulators.

CORNERSTONE EXCAVATING INC coordinates multi-trade remodels, additions, and structural updates from permit through final inspection in WASHINGTON. State classification on file: 237990 - Other Heavy/Civil Engineering.

Iowa contractor registrations are filed with workforce development records.

IA active license C103188 with an original issue date of 2026. Current expiration: 2027-05-06. Records are maintained by Iowa Division of Workforce Development.

Reach CORNERSTONE EXCAVATING INC at (319) 653-3957 or whitneym@cstoneinc.com. Request a written estimate listing scope, start date, and permit responsibility.

Market insights

Newer General Contractor license than most in IA.

Compared with other General Contractor contractors in WASHINGTON, this is a relatively newer license.

How this pro compares

License tenure vs state average

CORNERSTONE EXCAVATING INC

0.2 yrs

IA General Contractor average

0.5 yrs

CORNERSTONE EXCAVATING INC's license is 0.3 years below average for General Contractor contractors in IA.

License journey

License issuedMarch 31, 2026
Under 1 yr of operating history on record
License verifiedMay 29, 2026
License checked 22 days ago
License expirationMay 6, 2027
Renews within the next year

License details

License #C103188

StatusActive

IssuedMarch 31, 2026

ExpiresMay 6, 2027

BondNot published by the state

CountyWASHINGTON

StateIA

Last verifiedMay 29, 2026

License verified with Iowa Division of Workforce Development · last checked May 29, 2026. Confirm status with the state board before hiring.

Before you hire checklist

Work through these steps before signing — checking items helps you compare contractors with confidence.

1Verify license statusConfirm C103188 with Iowa Division of Workforce Development before signing a contract.
2Review bond & insuranceIowa does not publish bond dollar amounts in public licensing records. Always request written proof of bond and insurance.
3Match scope to license classEnsure the license covers General Contractor work for your project type in IA.
4Compare written quotesCompare at least three written estimates from licensed General Contractor contractors in WASHINGTON.
5Use a written contractInclude timeline, payment schedule, permit responsibility, and warranty terms before work begins.

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