by Cheney Hines
If you live in an older home, the presence of lead in your paint and asbestos in the walls can be a serious problem. These substances were commonly used as recently as the 1970s, before we realized how dangerous they were. Chips from lead paint or airborne fibers from asbestos can lead to blood poisoning, respiratory issues and even cancer. When you replace a window in your home, you need to be careful about exposure to dangerous substances such as these.