The details on Ductvac Northwest LLC
- WA L&I registration
- DUCTVNL934BR
- Registration checked
- July 27, 2026
- Registered since
- 2007
- Expires
- January 2027
- Contractor bond
- $15,000 · Contractors Bonding & Insurance Co
- Liability insurance
- $1,000,000 · WESTERN NATIONAL MUTUAL INS CO
- Insurance through
- January 2027
- Primary trade
- HVAC
- L&I specialty
- Heating/Vent/Air-Conditioning and Refrig (HVAC/R)
- Registered principal
- KOSTECKA, DAVID A · since 2007
- Registered principal
- KOSTECKA, JULIE M · since 2019
- Service area
- Spokane Valley
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Ductvac Northwest LLC
Is Ductvac Northwest LLC licensed in Washington?
Ductvac Northwest LLC holds Washington State (L&I) contractor registration DUCTVNL934BR, expiring January 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 $15,000 contractor bond (Contractors Bonding & Insurance Co) and $1,000,000 of liability insurance with WESTERN NATIONAL MUTUAL INS CO through January 2027. Ask for proof of bond and current insurance before work starts.
What areas does Ductvac Northwest LLC serve?
Spokane Valley. Service areas change, so confirm they cover your address when you call.
How did Ductvac Northwest LLC end up on this page?
Ductvac Northwest LLC 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.