The details on Ductvac Northwest LLC
- WA L&I registration
- DUCTVNL934BR
- Registration checked
- September 7, 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Something here wrong or out of date?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
Does Ductvac Northwest LLC hold a Washington contractor registration?
The number you want is DUCTVNL934BR — Ductvac Northwest LLC's Washington State L&I contractor registration, expiring January 2027. Last checked September 7, 2026. Washington's contractor lookup is free and open if you want to confirm it today. On file alongside it: 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. Get current certificates for the bond and the insurance before anyone starts.
What areas does Ductvac Northwest LLC serve?
Spokane Valley 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.
How did Ductvac Northwest LLC end up on this page?
Licensed, and working in Spokane Valley. That is the bar for a page on this site, and Ductvac Northwest LLC 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.