SustainMax, LLC is a Minneapolis, Minnesota home performance contracting company specializing in testing, certification, and installation of improvement measures. We are dedicated to delivering the highest quality of service and installation promoting health, comfort, durability, and affordability in residential construction. We have over 30 years of energy conservation experience in building envelope retrofit projects. Clients include homeowners, builders, contractors, remodelers, insulators, realtors, gas and electric utilities as well as lending institutions. SustainMax, LLC is a licensed building contractor involved in diagnostic testing, analyzing solutions, retrofit installations, and certification to achieve a high performance home. Our company provides a wide range of diagnostic testing services for both new and existing homes as well as certification for ENERGY STAR Homes, Green certifications for both MNGreenStar and NAHB's National Green Certification Program, and ratings for Energy Efficient Mortgages (EEM) and Energy Improvement Mortgages (EIM).