Insulation and Air Sealing in Cambridge Homes
Discover why air sealing and insulation work together to improve comfort and energy efficiency in older Cambridge homes.
Many older homes in Cambridge can lose a surprising amount of heated or cooled air through small gaps around attics, windows, doors, and utility openings. Air sealing helps close those leaks, while insulation slows the transfer of heat through walls and ceilings. When these improvements are completed together, they create a more effective barrier against temperature changes than either upgrade on its own.
Combining air sealing with updated insulation can improve year-round comfort, reduce drafts, and help heating and cooling systems operate more efficiently. Before beginning the work, it's also important to assess ventilation and moisture management so the home's energy performance is improved without creating new issues. A whole-home approach often delivers the best long-term results.















