Drill and fill insulation is a two-step process designed to improve the energy efficiency of a building. On the exterior, a section of siding is carefully removed to provide access to the wall cavities. A specialized cloth or membrane is then applied to the exterior to help retain the insulation material once it is introduced. On the interior, a 3-inch hole is drilled into each wall cavity, allowing for the injection of insulation. After the insulation is filled, the drilled holes are securely patched and refinished to match the surrounding wall surface. The exterior siding is also replaced and sealed to restore the building’s aesthetic integrity. This method ensures optimal insulation while minimizing disruption to the structure.how is done from the inside click link  to see  behind the drywall how it's filled up click link  to schedule a free estimate call or text us at 682-206-6263