Quality Service From Our Family to Yours - Since 1985

Siding and Window Remodeling

Premier Remodeling, Siding, and Window Contractor in Buffalo, MN

Randal Olson Exteriors, Inc. is based in Buffalo, MN. We have been providing the very best in exterior remodeling since 1985. Specializing in siding and windows but offer many other services as well. Operating as a family-owned and operated remodeling contractor, we understand the need to get the most “bang for your buck”. We use only top-quality products, employing highly qualified people, and work directly with you. This helps ensure the project stays on schedule and on budget. When you need home improvement services, no job is too large or too small for Olson Exteriors.

Star on Minnesota map marking Buffalo MN

What makes Olson Exteriors Different?

We're Not the Biggest, We Just Strive to be the Best

Proper Licensing, Bonding & Insurance

Lic #BC446644

BBB Accreditation

We've been Better Business Bureau Accredited since 2001, maintain an A+ BBB Rating, and earned the BBB Integrity & Ethics Award in 2007

Up-to-Date Training & Certifications

Whether installing replacement windows or re-siding, you receive installation by trained professionals.

Superior Warranties & Follow-Up

We honor the manufacturers' warranties and provide warranties on workmanship. We also feel that job follow-up is an integral part of customer service.

We Use Local, Made in the U.S.A., Products

We have aligned ourselves with U.S. manufacturers that are located right here in Minnesota. This includes ABC Supply, Heartland Windows, and Edco Siding, among others. Your home deserves quality, both in the actual work performed, and the products used. That’s why we use only those products that we ourselves would place in our own homes.

Free Estimates

Getting the remodeling process underway can be extremely stressful. That is why we offer free, no hassle estimates. There’s no hidden costs and all project details are provided in writing. We want to understand that you need to select the most suitable contractor for your project.

BBB Integrity & Ethics Award Winner

From new construction to home improvements, we are committed to providing quality and reliable service every step of the way. At Olson Exteriors we welcome the opportunity to increase the value, energy-efficiency, and beauty of your home by utilizing our experience, skill, and quality products. Contact us for references, free estimates, and to learn more about our services.

BBB Accredited Business Logo


I was extremely pleased with the outcome of my older home. As a result, when I built my current home, I had Olson Exteriors do the siding and windows. I have and continue to recommend Olson Exteriors to anyone looking for quality work, whether it be updating an older home or building a new one.

Respectfully, Judy Sandeen (Buffalo, MN)

Olson Exteriors is the best company we have ever used. Randy is the owner and he is great to work with.

Mr Jenson

Service Area

• Albertville
• Annandale
• Becker
• Big Lake
• Buffalo
• Clearwater

• Delano
• Elk River
• Greenfield
• Hanover
• Howard Lake

• Loretto
• Maple Grove
• Maple Lake
• Monticello
• Montrose

• Mound
• Osseo
• Otsego
• Plymouth
• Ramsey

• Rogers
• St. Michael
• Watertown
• Waverly
• And More