Before adding or upgrading insulation, air sealing addresses the gaps, cracks, and penetrations around windows, doors, electrical outlets, plumbing lines, and other openings where conditioned air escapes and outside air infiltrates. Even well-insulated homes can suffer from poor energy performance if air leakage isn’t addressed first, since insulation slows heat transfer but doesn’t stop airflow on its own. Air sealing is often considered one of the most cost-effective home efficiency improvements available, frequently paying for itself through reduced heating and cooling costs. It also helps even out temperature inconsistencies between rooms, reduces drafts, and can improve indoor air quality by limiting the entry of outdoor pollutants, dust, and humidity. We use techniques like caulking, weatherstripping, and spray foam sealants to target the specific leak points identified during an assessment.