The details on Cornerstone CNST & Dvlpmnt Inc
- WA L&I registration
- CORNECD755DM
- Registered as
- CORNERSTONE CNST & DVLPMNT INC
- Registration checked
- July 27, 2026
- Registered since
- 2025
- Expires
- March 2027
- Contractor bond
- $30,000 · Travelers Cas and Surety Co of America
- Liability insurance
- $1,000,000 · CANOPIUS US INSURANCE INC
- Insurance through
- March 2027
- Primary trade
- General Contractor
- L&I specialty
- GENERAL
- Registered principal
- Clow, Isaiah Michael · since 2025
- Service area
- Spokane
- Phone
- (509) 443-0252
- Website
- cornerstoneconstruction.com
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Cornerstone CNST & Dvlpmnt Inc
Is Cornerstone CNST & Dvlpmnt Inc. licensed in Washington?
Cornerstone CNST & Dvlpmnt Inc. holds Washington State (L&I) contractor registration CORNECD755DM, expiring March 2027. We verified it against the state record on July 27, 2026, and you can check the same number on Washington's contractor lookup in about a minute. L&I also lists a $30,000 contractor bond (Travelers Cas and Surety Co of America) and $1,000,000 of liability insurance with CANOPIUS US INSURANCE INC through March 2027. Ask for proof of bond and current insurance before work starts.
What areas does Cornerstone CNST & Dvlpmnt Inc. serve?
Spokane. Service areas change, so confirm they cover your address when you call.
How did Cornerstone CNST & Dvlpmnt Inc. end up on this page?
Cornerstone CNST & Dvlpmnt Inc. is licensed and working in the Spokane area — that's the whole bar for a page here. We check that registration against the state's own record and date the check on this page, so you can see for yourself how current it is. Cornerstone CNST & Dvlpmnt Inc. rates 4.7 out of 5 on Google across 14 reviews, and this page links straight to those reviews so you can read them for yourself.