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Renovations & Additions Incentive Program


The Sponsors of Mass Save provide incentives for incorporating energy efficiency upgrades to renovations and/or additions of existing homes within their service territories. They offer financial incentives for home renovations and additions that exceed the Massachusetts building energy code to improve energy efficiency.

IMPORTANT: In alignment with the Commonwealth’s climate policy and goals, the Sponsors of Mass Save are discontinuing incentives for homes that utilize equipment powered by natural gas, oil and propane. Projects enrolled in the Renovations & Additions program must be submitted for incentive processing by September 30, 2024, to receive incentives for natural gas, oil or propane equipment. As of October 1, 2024, only electrification equipment and improvements to the thermal envelope will be incentivized. Contact for more information.

Is Your Project Eligible?

Residential renovations and additions to single-family homes and multi-family homes with 3 stories or less are eligible if they are located within Sponsor service territories in Massachusetts and have an inspection prior to the start of any demolition or construction. Renovations must consist of 50% or more of the original home undergoing renovation and additions must meet a minimum 500 square feet of total floor area. Projects may also be eligible for a 0% Mass Save HEAT Loan.

Eligible upgrades: insulation / water heating equipment / heating, ventilation, and air conditioning / lighting / air and duct sealing

Program eligibility requirements and incentives available are subject to change and may vary each year.

How Incentives Are Calculated

To calculate incentives, HERS raters create a whole-house energy-use model of your home and compare it against a model of an average renovation and/or addition of a Massachusetts home.

How To Apply for Incentives

You must work with an approved HERS rating company, like Home Energy Raters, + make energy efficient choices that maximize your incentives. If your project qualifies, we will enroll your project and take care of all of the paperwork. We work with you and make recommendations to ensure you get the maximum incentives available for your project. Many of our clients who follow through with our recommendations find that the incentives help offset the cost of our services.

  1. Schedule a preliminary site visit prior to the start of demolition or construction. Call us to schedule a preliminary visit where we will perform a baseline evaluation, review your project plans,  estimate possible energy savings and recommend additional energy efficiency upgrades.
  2. Schedule an insulation inspection. If you are installing new insulation, call us and schedule this inspection to take place once the insulation work is complete but before the wallboard has gone up.
  3. Schedule a final inspection. As your project nears completion, call us and set up a final site visit with us so we can finalize all the details on your project including the energy model to calculate your estimated incentive. We will also perform a blower door and duct leakage test if necessary.

After the final inspection is processed, you’ll receive an incentive completion notification via email. Within 10-12 weeks of your final inspection, you’ll receive an incentive check in the mail.

— If you receive incentives for heating and/or cooling upgrades as part of your renovations and additions incentive, you cannot also receive incentives for the same equipment from the Mass Save heating, water heating, and cooling incentive offerings. —

Program eligibility requirements and incentives available are subject to change and may vary each year.



Interested in enrolling an upcoming project into the Renovation & Additions Incentive Program? Give us a call at 508-833-3100 or send us an email to!