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  • Residential | Mass Save

    Whether you own or rent, and live in a single- or multi-family home, find ways to save money and reduce your carbon footprint while making your home more comfortable.

  • Massachusetts Home Energy Services | Free Energy Audits for Your Home

    No-cost on-site assessments and energy saving products. 90 percent off up to $3,000 toward recommended insulation improvements for each individual unit if all eligible units participate in a 1-4 unit building.

  • Mass Save | Partners | Home Energy Raters

    Become a Home Energy Rating System (HERS) Rater to evaluate a home’s energy features, prepare a home’s energy rating, and make recommendations for efficiency improvements.

  • Mass Save | Partners | Home Energy Services Participating Contractors

    Become a participating Home Energy Services Contractor and provide your customers with home energy assessments and/or weatherization improvements.

  • Mass Save | Partners | Heat Pump Installers

    By joining the Mass Save Heat Pump Installer Network (HPIN), your business will be listed in the “Find a Contractor” tool on the Mass Save website.

  • Mass Save | Building Insulation & Weatherization

    The Sponsors of Mass Save are offering incentives for business owners to upgrade the insulation in their attics and walls, and seal air leakage in their attics.

  • Renters | Mass Save

    As a renter, there are many ways you can save energy and increase the comfort of your home. The Sponsors of Mass Save offer a variety of incentives, programs, and support to help renters enjoy all the good things energy efficiency brings.

  • Path to Carbon Neutral | Mass Save

    The Mass Save energy efficiency programs continued to drive meaningful reductions in greenhouse gas emissions in 2023. These programs resulted in 223,000 metric tons of CO2 avoided. That’s the equivalent of taking over 53,000 gasoline-powered passenger vehicles off the road for one year.

  • Mass Save® Income Eligible No-Cost Energy Efficiency Programs

    Find out if you are eligible for no-cost or discounted energy efficiency services to improve your living.

  • Mass Save | Laboratories

    Save money and energy while maintaining or even improving lab safety.