Improve The Energy-Efficiency Of Your Home With Wall Insulation
If you live in an older home, there may be fiberglass batt insulation in the wall cavities. If there have been roof or wall leaks in the past, pests, or other damaging events, the old insulation may not be working very well. It's even possible that your old home doesn't have any wall insulation at all, and that makes your home more expensive to heat and cool.
You can have new wall insulation installed without having to open up your walls.