Have a professional seal your home's air leaks. Typically, this reduces air leakage by 25%.

The U.S. Department of Energy (DOE) estimates that air leakage accounts for up to 10 percent of a homeowner’s annual energy bill, or about $70 per year for an average U.S. household. Your top priorities are sealing the attic, then basement, followed by windows, doors, vents, electrical sockets, and anywhere else air is escaping.

To help find leaks, hire a professional to pinpoint them with a blower door test or infrared technology. If you properly seal your house in addition to insulation, you may even be able to downsize your heating and cooling systems.

The ROI Calculation is based on using a professional service provider, and savings of $15 a month over the course of the year. If you take the time to find and seal the air leaks yourself, the ROI naturally goes up.

Rubber weatherseal is typically guaranteed for 5 to 10 years vs. the slightly less expensive vinyl that may only lasts three years. Go with rubber, and make sure that you consider unexpected locations like the perimeter of an attic access panel.

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