Air Sealing

 Air leaking in and out of the house causes:

air sealing

“Thermographic House” Red indicates warm air escaping.
Picture Courtesy of National Geographic Magazine
Photo by Tyrone Turner

  • Wasted energy and money
  • Uncomfortable and drafty rooms
  • Spreading of mold, moisture, and allergens
  • Additional wear on your heating, ventilation and air conditioning equipment

The vast majority of homes in the United States are wasting significant amounts of energy due to air leaks in their structures that insulation alone does not prevent. Following the guidelines of The Building Performance Institute (BPI), Green Energy Improvement never installs insulation without first sealing air leaks. Without being sealed, the leaks will continue to cause drafts and be more difficult to repair under added insulation. These leaks include holes and cracks in the attic and basement around electrical boxes and conduit, plumbing pipes, cable wires, dryer vents, exhaust fans, attic hatches and sill plates, as well as around window and door frames and in crawl spaces.

Sealing air leaks with spray foam greatly increases the overall R-Value (effectiveness level) of other insulating products.
Properly air sealed and insulated, your home will be more comfortable, healthy, affordable and energy efficient.

REBATES: Green Energy Improvement is approved to offer air sealing rebates to qualified Nicor Gas customers through the Nicor Gas/ComEd Home Energy Savings Program. NOTE: Nicor Gas rebates expire May 31, 2014, and may be subject to change.
ON-BILL FINANCING: Green Energy Improvement is approved to offer on-bill financing to qualified Nicor customers. NOTE: This is a limited time offer, while funding is available.


Air leakage

Leaks in around conduit


attic insulation

Air leaks around partition walls


cellulose insulation

Leaks from recessed lighting