The owner, Wm. Bronkall, is experienced with heating, air conditioning, and insulation. With our experience, we can readily determine your insulation needs to insure a comfortable home. Retrofit is the majority of our business, attics, sidewalls, and between floors for sound control. We are the experts in this field. We like to work within a 100 mile radius of our office, but for larger projects, we'll travel further.. For Attic and Wall Insulation A combined effort by SoCal Gas and SoCal Edison to help save energy during this crisis have arranged to pay you for insulating your older home up to present day codes of R-30 attic and R-13 in exterior walls.