New Construction and Remodeling Winona MN


Design Build Homes Icon

Home construction from thought to finish. We can design your home project to fit within your budget.

Design/Build (Learn more)

Radon Testing Icon
•Radon Testing & Mitigation

We offer complete radon testing & mitigation services. We are certified by the National Environmental Health Association. Certificate #s 105441RMT & 105440RT

Radon Testing/Mitigation (Learn more)

ice dam removal
•Ice Dam Removal/Prevention

Don’t wait until it’s too late. Roofs are meant to shed water – they are not meant to hold water.

Ice Dam Removal/Prevention (Learn more)


Solar Electric Systems Icon
•Home Performance & Weatherization

Have a drafty home? We can help! Using infrared cameras, we can determine just where your home leaks air.

Home Performance & Weatherization (Learn more)




Contact us today!

contact ellefson builders

Mike Ellefson
507.474.9060 (office)
507.450.7465 (cell)
507.474.1005 (fax)


"The Ellefson Builders crew was very professional and courteous while at our house working. They worked efficiently and their presence was not disruptive to our daily lives; and they were very friendly to my family."

- David Meyer, Winona MN


"The workers were professional at their craft and very thoughtful in their dealings with us. We could not have asked for a better crew to do the work."

- Jim & Carmen Lennartson - Goodview, MN


"Many contractors will finish a job and not stand behind their work after completion. You do."

-Lana Sacia, Winona MN


"While the crew was working, it was nice to know that I was not responsible for their safety. It gave me peace of mind knowing that Ellefson Builders carried full insurance on the crew and that I in the unlikely event of an accident, I would not be at risk financially."

- David Meyer, Winona MN

Minnesota Department of Health IconNational Radon Proficiency ProgramAmerican Association of Radon Scientist and Technologists Association
© 2011 Ellefson Builders, Inc | Winona, MN 55987 | Privacy Policy
winona minnesota website designer