The details on GW Markquart Construction
- WA L&I registration
- GWMARMC766LQ
- Registration checked
- July 27, 2026
- Registered since
- 2024
- Expires
- June 2028
- Contractor bond
- $30,000 · Nationwide Mutual Ins Co
- Liability insurance
- $1,000,000 · Trisura Specialty Insurance
- Insurance through
- May 2027
- Primary trade
- General Contractor
- L&I specialty
- GENERAL
- Service area
- Liberty Lake
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking GW Markquart Construction
Is GW Markquart Construction licensed in Washington?
GW Markquart Construction holds Washington State (L&I) contractor registration GWMARMC766LQ, expiring June 2028. 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 (Nationwide Mutual Ins Co) and $1,000,000 of liability insurance with Trisura Specialty Insurance through May 2027. Ask for proof of bond and current insurance before work starts.
What areas does GW Markquart Construction serve?
Liberty Lake. Service areas change, so confirm they cover your address when you call.
How did GW Markquart Construction end up on this page?
GW Markquart Construction 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.