As an independent family-owned business, we take pride in our work, reputation and relationships. By offering only the highest quality home performance solutions, we can GUARANTEE improved comfort and lower utility bills. Our process involves retrofitting existing buildings with an insulation system that keeps 72 degree air inside, and Mother Nature’s air outside. We do this with energy auditing, RetroFoam injected insulation, spray foam insulation, blown cellulose insulation.

RetroGreen Energy Prides itself on winning awards such as the efficiency partner of the year from excel energy and high ratings from its customers on google, angies list and home advisor. Over the past 10 years we have improved the comfort and energy consumption of over 4500 homes and have installed millions of square feet of wall and attic insulation.

Retrogreen Energy is still owned and ran by its founder Chris Froelke who is a licensed building contractor turned energy nerd that holds several energy certifications. He is revered as one of Minnesota top experts on understanding and implementing energy and comfort saving work scopes on all types of existing structures.

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RetroFoam injection foam insulation does what other insulation materials can’t — it’s a real problem-solver. Homeowners benefit from this product’s very high R-value, its ability to fill a space and the way it molds

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