REenergizeCO visited our house, inspected the issues, pointed out additional details regarding energy inefficiencies, and sent a free estimate. Our old insulation was completely removed, and new insulation/foam was installed in the crawlspace and entire attic. All gaps were sealed (included furnace ducts). Entire job took approximately 5 hours. They were friendly, professional, and arrived on-time (actually they arrived early). We're very happy and would highly recommend.