7 vetted design-build firms serving St. Paul · how we vet & rank
Additions add true square footage — primary suites, family rooms, mudrooms, or a second story. They are structurally the most involved remodel category, requiring foundation work, framing into the existing structure, and careful matching of exteriors.
Founded above a garage in 2005 by Jeff and Leslie Nicholson, Quartersawn now fields 25-plus craftspeople who run three-person dedicated teams on bespoke remodels of the cities’ older homes.
A NARI-member design-build remodeler with 15+ years serving Hennepin, Ramsey, and Carver counties, Scala Design & Construction covers the full remodeling range — kitchens, baths, basements, additions, and whole-home projects — in the mid price tier.
One of the most-awarded remodelers in the Twin Cities, McDonald Remodeling has run full design-build renovations — kitchens, lower levels, additions, whole homes — from Inver Grove Heights since 2000.
An architect-led design-build cooperative since 1982, TreHus staffs AIA architects, ASID interior designers, and master carpenters for historic renovations, remodels, and custom homes.
A woman-owned design-build remodeler whose architect-trained owner keeps the craftsmen in-house, Prima focuses on kitchens and baths in the Twin Cities’ older housing stock — a four-time Guildmaster Award winner.
A second-generation design-build remodeler founded in 1977, Castle specializes in older urban homes — kitchens, baths, attics, and additions — with over 4,000 Twin Cities clients and four neighborhood design studios.
A custom builder and remodeler since 2007, JJH Homes works across the north and east metro from Blaine and Shoreview to Woodbury and Stillwater.
Additions in the Twin Cities typically run $300–$500+ per square foot all-in, with second-story additions and complex tie-ins at the high end.
Additions in the Twin Cities typically run $300–$500+ per square foot all-in, with second-story additions and complex tie-ins at the high end. St. Paul's older housing stock can add scope — outdated wiring, plaster, and framing surprises are common in pre-war homes, so build contingency into the budget.
We currently list 7 design-build remodelers handling home additions in St. Paul. All are being verified against Minnesota's contractor licensing records as we expand the directory.
Almost always, yes. Any project touching plumbing, electrical, structure, or egress requires permits and inspections in St. Paul. A legitimate contractor pulls the permits themselves — treat any suggestion to skip permitting as a red flag.
Additions typically run 3–6 months of construction depending on size and season — foundation work in a Minnesota winter needs experienced scheduling.
Tell us about your project and we’ll shortlist up to 3 vetted local builders that fit your city, budget, and timeline.
Planning new construction instead? See St. Paul home builders.