Licensed contractors in Columbia, WA
D S Construction Services LLC
General · Columbia, WA
License #DSCONSC791DH · $30,000 bond
Deco Well LLC
Painting/Wallcovering · Columbia, WA
License #DECOWWL753P7 · $15,000 bond
Gold Mountain Contracting LLC
General · Columbia, WA
License #GOLDMMC833DZ · $30,000 bond
Northwest Const & Supply INC
General · Columbia, WA
License #NORTHCS000N5 · $30,000 bond
Trades in Columbia
Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.