How much does a rim joist air-seal cost in Toledo?

A rim joist air-seal and insulation in Toledo runs $800-$2,000 for a typical basement perimeter. The $1,200/year IRA credit applies.

Low
$800
Typical
$1,300
High
$2,000

What affects the price

  • Perimeter linear feet
    Average house 100-180 ln ft of rim joist.
  • Material
    Closed-cell spray foam $8-$15/ln ft; rigid foam + caulk $5-$10/ln ft.
  • Access
    Finished basement requires drywall removal.

What's included

  • Rim joist seal (closed-cell spray foam or rigid foam + caulk)
  • EPA SPF certified applicator (spray foam)
  • Cleanup

When to call

Before winter heating season. Rim joist sealing is one of the highest-ROI energy retrofits in Ohio because cold air enters basements through this gap.

Related questions

Why are rim joists important?

Cold air enters basements through the rim joist gap between floor joists and the sill plate. Sealing this gap drops heating bills 10-20% and stops the cold-floor problem.

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