Weather stripping can seal leaks around movable joints, such as windows or doors. You need to choose a type of weather stripping that will withstand the friction, weather, temperature changes, and wear and tear associated with its location.
Many utilities offer incentives to homeowners who make improvements that save energy. Contact your utility company to determine if you’re eligible for a low-interest loan or discount for replacing your windows and doors. Ask about energy-efficient insulating features such as argon gas between the panes of glass and a Low-E coating.