When you stand near one of the windows in your home, is there a noticeable temperature difference? Windows are commonly a problem with keeping your home from losing energy. This is true both in the summer and the winter, and over the year, it can cost you a pretty penny. So what can you do? Your first step is figuring out why you are losing energy from your windows. If they are old-fashioned, single-pane windows, or dual-pane windows where the seal has failed, then your only recourse might be to replace them.
If the problem is due to cracks or holes around your window, then you might be able to repair these to improve the situation.
Spotting holes around your windows is easier if you have a spotter on the outside to look for light shining through the gaps. It is even simpler with a thermal imaging tool which will let you see temperature differences around the window.