Air sealing is one of the most cost-efficient ways for homeowners to save money on energy bills. Our process involves taking the infrared images found in the home energy audit and caulking and weatherstripping the least energy-efficient places in your home. At Terra Insulation, air sealing and insulation are often bundled in the same package because it does not make sense to insulate a home without making sure the leaky holes are closed. The most important air sealing is in the attic