Choosing windows, whether they are replacement windows or windows for new construction, take research. Window salespeople have great pitches, some of which can seem hard to refuse. How can you judge for yourself whether or not they are offering you the right windows for your house? Go into the meeting with information "in your pocket". Know about R-values, grades of windows, window frames, and the true energy-saving potential of replacement windows.
What is builder grade?: Know the difference between builder grade windows and higher-end windows, so that you can get the best investment from your window purchase.
Energy-efficient window frames: Did you know that window frames are as important, if not more important, for energy efficiency than window panes? Maybe it's not the panes, but the frames, of your windows that need replacement. Carpentry advice.