Insulation and Acoustical contractors in Bellingham, WA
Insulation contractors install thermal and sound insulation in walls, attics, floors, and ceilings. Washington currently lists 3 Insulation and Acoustical contractors registered in Bellingham.
Acousti-CO
Insulation And Acoustical · Bellingham, WA
License #ACOUSC*072BD · $15,000 bond
Detec Systems LLC
Insulation And Acoustical · Bellingham, WA
License #DETECSL918D3 · $15,000 bond
Insuldynamics LLC
Insulation And Acoustical · Bellingham, WA
License #INSULL*742ND · $15,000 bond
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Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.