Insulation and Acoustical contractors in Bellingham, WA

3 contractors · Updated Sep 28, 2026

Insulation contractors install thermal and sound insulation in walls, attics, floors, and ceilings. Washington currently lists 3 Insulation and Acoustical contractors registered in Bellingham.

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Acousti-CO

Listed

Insulation And Acoustical · Bellingham, WA

License #ACOUSC*072BD · $15,000 bond

Detec Systems LLC

Listed

Insulation And Acoustical · Bellingham, WA

License #DETECSL918D3 · $15,000 bond

Insuldynamics LLC

Listed

Insulation And Acoustical · Bellingham, WA

License #INSULL*742ND · $15,000 bond

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Built from Washington State L&I public records, updated Sep 28, 2026. Subser doesn't do star ratings or reviews — just verified records.