Break out the caulking gun

The problem: Leaky panes.

The solution: A $5 tube of caulk is a prudent first step. When new windows are unavoidable, it's worth spending the extra $5 to $10 a square foot for an energy-efficient type; it will reduce your heating and cooling bills by up to 20%.

Talk to your installer about adding sufficient flashing, which is the material that's applied around the window edges for waterproofing.

  @Money - Last updated October 12 2012 06:35 AM ET
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