Hartley-Waltz Construction is an Oregon-based energy-efficiency contractor specializing in insulation, window, and door upgrades. As a BPI-certified Building Analyst Professional (BAP), we apply a whole-home, building science approach to reduce air leakage, improve thermal performance, and enhance occupant comfort. Our work includes insulation improvements in attics, walls, floors, and crawlspaces, as well as high-performance window and exterior door installations with proper air sealing and flashing. We focus on durable, code-compliant solutions that improve energy efficiency, comfort, and long-term building performance.