We're a family-run business in Portland, Maine, offering high-quality European triple-pane windows and doors that help keep your home comfortable and energy-efficient year-round. We proudly supply Schüco uPVC and aluminum-clad windows, perfect for new builds or thoughtful renovations. As Maine’s top source for SIGA air-sealing products, weather barriers, fine cabinetry, efficient wood stoves, and more, we’re here to support projects of all sizes with personal service and expert advice.
I count Performance Building Supply amongst my favorite suppliers. Through numerous projects they have supported us with great product and service. If you desire quality products, upgraded energy performance and top notch service the team at Performance Building Supply is ready to deliver.
May 2024
Incredibly helpful, kind, and responsive customer service
December 2023
Company had what I needed one of the few in New England, definitely will do business again.
