Q: I live in Phoenix, Arizona. Any suggestions for window solutions to decrease heat coming in? Home is only 12 years old, so not getting new windows yet. What about films? which are best?

A: there are several good options for you. Blinds are cheap and effective at blocking sun. Growing deciduous trees that shade the windows in summer are also very effective if you are prepared to wait the 5-10 years for the tree to grow. Adding window overhangs also works very well but they cost more to add. The sunblock films you can buy at hardware stores do work to cut down the sun’s heat. They are cheap so you can’t lose anything to try it and see if you like it.