Most homes in Massachusetts are older buildings, and they are almost always leaky! Cold air leaks in??”and warm air leaks out??”around doors, windows, electrical outlets, the basement and foundation, and especially through attics.

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The extra fuel needed to compensate for all these leaks creates a household average of 800 pounds of CO2 emissions each year. So by sealing up all those leaks, you will save 800 pounds of CO2 a year.