Builders Commonwealth is a premier design-build contractor serving Duluth and the surrounding regions of Minnesota and Wisconsin. With a history dating back to pioneering passive solar projects in the early eighties, this firm integrates deep energy efficiency into every build. They specialize in both residential and commercial sectors, offering comprehensive services from custom timber framing to LEED certified retail spaces. Their in-house capabilities include high-end millwork and cabinetry, ensuring that every interior finish meets rigorous artistic and functional standards. The team prioritizes superinsulated envelopes and advanced solar integration to minimize environmental impact and operating costs for clients. Whether executing a delicate historic restoration or a modern superinsulated structure, they balance traditional craftsmanship with innovative green materials. Their portfolio highlights a commitment to renewable energy, demonstrated by extensive photovoltaic installations on their own facilities and public buildings. Clients benefit from a holistic approach that combines thoughtful design with durable construction techniques for long-lasting performance.