Air sealing addresses the single largest source of energy waste in most New England homes. The U.S. Department of Energy estimates air infiltration accounts for 25–40% of all heating and cooling costs. Sealing it is the highest-ROI energy improvement available to any homeowner.
Smooth performs systematic air sealing of attic bypasses, basement rim joists, plumbing and electrical penetrations, recessed lights, and attic hatches throughout Boston, the North Shore, MetroWest, and all of New England. All work qualifies for energy-efficiency improvements when combined with insulation.
Air infiltration accounts for 25–40% of all heating costs in a typical New England home
Massachusetts homeowners may qualify for incentives and incentives for insulation and air sealing projects
Eliminating drafts and cold spots is noticeable from the first day after installation
Uncontrolled air infiltration brings allergens, moisture, and pollutants — sealing improves air quality
Air sealing + insulation together deliver 30–50% energy savings versus either alone
Depressurize home to identify leakage locations and measure total air leakage rate.
Seal all top plates, recessed lights, duct chases, and framing penetrations in the attic floor — the #1 source.
Spray foam applied to rim joist assembly — the second most significant leakage point.
All plumbing, electrical, and HVAC penetrations through the thermal envelope sealed.
Post-sealing blower door test documents improvement and documented for incentive eligibility.
Response within 2 hours. Project scope reviewed on every quote.
Get Free Estimate → 📞 857-214-2434Most MA homeowners qualify for incentives on qualifying insulation and air sealing projects — amount depends on eligibilitys. We handle all paperwork.
Learn About Energy Efficiency →Free estimate. Project scope reviewed. Response within 2 hours, Mon–Fri.