At Keystone Builders & Exteriors, our foundation is built on a decade-long friendship between co-founders Joseph Tassi and Randy Burge—and a shared commitment to doing things the right way. Based in the Twin Cities, we’re more than a storm repair company. As a full-service general contractor, we specialize in retail construction, home exterior projects, and property improvements of all scales.

While we remain ready to help when storm damage strikes, our focus is on long-term value: elevating the appearance, performance, and integrity of every property we touch. We take pride in delivering high-quality results, transparent communication, and lasting relationships—whether we're rebuilding after a storm or enhancing everyday spaces.