The details on Dinwiddie Construction Inc
- WA L&I registration
- DINWICI009NA
- Registered as
- DINWIDDIE CONSTRUCTION INC
- Registration checked
- September 7, 2026
- Registered since
- 2000
- Expires
- July 2027
- Contractor bond
- $30,000 · Western Surety Co
- Liability insurance
- $1,000,000 · State National Ins Co Inc
- Insurance through
- July 2027
- Primary trade
- General Contractor
- L&I specialty
- GENERAL
- Registered principal
- DINWIDDIE, STEVE Leroy · since 1980
- Service area
- Spokane
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Dinwiddie Construction Inc
Is Dinwiddie Construction Inc. licensed in Washington?
The number you want is DINWICI009NA — Dinwiddie Construction Inc.'s Washington State L&I contractor registration, expiring July 2027. Last checked September 7, 2026. Washington's contractor lookup is free and open if you want to confirm it today. L&I also lists a $30,000 contractor bond (Western Surety Co) and $1,000,000 of liability insurance with State National Ins Co Inc through July 2027. Ask them to send the bond and insurance certificates over before the first day on site.
Does Dinwiddie Construction Inc. cover my part of Spokane?
Spokane is what they cover. A crew close to you is the one that comes back for a warranty call, so it is worth asking how far out they really travel.
Why is Dinwiddie Construction Inc. listed here?
Licensed, and working in Spokane. That is the bar for a page on this site, and Dinwiddie Construction Inc. clears it. The registration gets checked against the state's record and the date sits on this page, so you can judge how current it is.