Air Sealing & Weatherization

Before you insulate, seal the leaks. Air sealing is the single most cost-effective energy upgrade you can make.

Why Air Sealing Matters

Even a well-insulated home can waste energy if air leaks aren't addressed. The average home has enough gaps, cracks, and holes to equal leaving a window open year-round. Air sealing stops conditioned air from escaping and prevents outside air, moisture, dust, and allergens from entering.

Common Air Leak Locations

  • Attic penetrations: Wiring holes, plumbing stacks, recessed lights, attic hatches
  • Rim joists: The junction between foundation and framing — a major leak point
  • Windows and doors: Gaps in weatherstripping and caulking
  • Ductwork: Leaky ducts in unconditioned spaces waste 20-30% of heated/cooled air
  • Electrical outlets: Especially on exterior walls
  • Recessed can lights: Each unrated fixture is a direct hole in your ceiling

Our Air Sealing Process

  1. Assessment: We identify air leak locations using visual inspection and diagnostic tools
  2. Prioritize: We focus on the biggest leaks first for maximum impact
  3. Seal: Using caulk, spray foam, weatherstripping, and rigid materials as appropriate
  4. Verify: We confirm results and ensure proper ventilation is maintained

Air sealing is most effective when combined with insulation upgrades. Contact us for a complete assessment.