The expansion has been a part of American history since the foundation of our nation. Welter Construction continues this legacy, offering quality service on all exterior expansions no matter what the details of your need might be. Unlike other construction companies or remodeling contractors, Welter Construction is the Midwest’s total construction contractor since 1969. In the past home and business owners may have had to look to hire multiple companies for various services. With the Welter Construction team on your side, we are your total construction contractor offering affordable services for all of your exterior expansion needs from roofing to flooring.

Whether you’re looking to build a home addition for some relatives, or finally bring to fruition that special room you’ve always dreamed of, Welter Construction is the total construction contractor you can lean on.


10 Reasons To Choose Welter Construction in MN!

  • BBB A+ rating 
  • Angi A-rated company
  • We are Insurance claim experts
  • Certified, licensed, bonded & insured
  • Over 30 years in the business, multi-generational family-owned business
  • We only hire top-rated professionals
  • Fast, friendly & fairly priced service
  • 100’s of happy customers
  • Free Consulting, Free Inspections & Free Quotes!
  • We are a one-stop-shop for anything in the construction

Exterior Expansion Services:

  • Room Additions
  • Home Expansion
  • Garage Construction
  • Sunrooms
  • Front Door Porches
  • Screened Porches
  • Outdoor Kitchens
  • Sheds
  • Pool Houses
  • Outdoor Fire Pits
  • Pergolas
  • Gazebos
  • Outdoor Shade Structures