Every building has small gaps and penetration points around the envelope that leak valuable air. These natural points arise from the construction process and are most often found in attics, basements, and exterior walls, as well as around windows, doors, electrical outlets, light fixtures, and pipes. Over time, the continual leakage of conditioned or heated air can affect energy bills and indoor air quality.

Leaving these air leaks untouched is like leaving your windows open on a hot summer day while the AC is running. It’s not a good idea. That’s why air sealing is the ideal solution.

When done correctly, whole-house air sealing targets hidden problem areas throughout the structure, including attics and basements. This process focuses on sealing gaps and cracks that compromise comfort and efficiency. By addressing these weak points, energy-efficient air sealing helps reduce air leakage, stop drafts, and maintain consistent indoor temperatures year-round.

Air sealing addresses gaps and cracks throughout the building envelope by preventing airflow between the interior and exterior of your home or building. Unwanted outside air is no longer allowed to slip in while valuable heated or conditioned air slips out. Gaps are sealed with foam or caulk for the most effective, durable solution, creating a continuous barrier that enhances overall performance.

Air sealing is most often completed before insulation, and together these two upgrades work in tandem to maximize efficiency. This approach, commonly referred to as air sealing and insulation, creates both an air barrier and a thermal barrier. Whether you’re air sealing in new construction or in existing homes, sealing the building envelope first allows insulation to perform at its full potential. These insulation and air-sealing upgrades also improve indoor air quality, manage moisture, and help lower energy bills.