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How much does spray foam insulation cost per square foot?

We price spray foam insulation per square foot after an on-site assessment. Final cost in Portland–area homes depends on access, foam type (open-cell vs closed-cell), target R-value (thickness), prep and protection, and whether old insulation needs removal. A technician will confirm square footage and provide a written quote before work.

Quick checks:

  • Tell us attic, crawlspace, or walls.
  • Note access points and any existing insulation.
  • Ask about pairing with duct sealing (Sky Seal) for efficiency.

Updated: 2025-11-26 00:00:00


Need help in West Linn, OR? Call (503) 506-4665 or book online.

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