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Air Sealing

Stop the drafts at the source.

Insulation slows heat; air sealing stops moving air. Most drafty homes have hidden leaks around attic hatches, chimneys, wiring and plumbing penetrations, and rim joists. We find and seal them so your insulation can actually do its job.

Sound familiar?

  • Drafts you can feel near outlets, doors and windows
  • Dust and dirt that keep coming back
  • Cold spots even with the heat on
  • Ice dams that keep returning
  • Attic stairs or hatch that feels like an open window

What we do

Attic air sealing

Sealing the leaks that let warm indoor air escape into the attic.

Basement and rim joist sealing

Closing gaps where your home meets its foundation.

Living-space draft reduction

Tackling drafts around doors, windows and trim.

Smart sequencing

Air sealing comes first, then insulation, for the best results.

How it works

1

We locate leaks during your audit or a dedicated visit.

2

We seal the biggest culprits first.

3

We insulate afterward where it makes sense.

4

You feel the difference: fewer drafts, steadier rooms.

Efficiency Maine air sealing rebates

Air sealing now earns its own rebate by area (attic, basement, living space) that stacks with the insulation rebates. Full amounts are on our rebates page.

See rebates

Quick answers

Will my house be too airtight?

A well-planned project considers ventilation too. That's where ERVs can come in.

Is air sealing worth doing by itself?

Often yes, especially in attics. We'll tell you honestly what makes sense.

Does it make a mess?

No. Most of the work happens in attics, basements and other low-traffic spaces.

Let's talk about your home

Tell us what's going on and we'll reach out with one clear next step. Free estimate, zero pressure.

207-718-1774

[email protected]