When we're done you will not even notice we insulated your home! Insulating the walls of your home can be a tricky, and sometimes messy job if you're working with the wrong people. Here at Dr. Energy Saver, we have come up with an easy solution to insulating your walls. What we do is drill holes into the exterior walls of your house, insert the best insulation for your home, and repair the holes. Some houses may need touch ups, but the remnants of the job are barely noticeable.