Mass Save, Eversource / National Grid / Utilities
Mass Save Free Home Energy Assessment is available to homeowners and renters in Boston, MA.
The free Mass Save Home Energy Assessment is the gateway to most Mass Save rebates and the 0% HEAT Loan. A certified energy specialist visits your home, identifies inefficiencies, and recommends upgrades. Following the assessment, homeowners receive a report and can immediately access instant rebates on insulation and initiate the HEAT Loan application. The assessment itself is at no cost and typically takes 2-3 hours.
Completely free. Gateway to all Mass Save rebates and the 0% HEAT Loan. Schedule online at masssave.com or call 866-527-7283. Must complete before accessing most rebates.
Verified against Mass Save, Eversource / National Grid / Utilities's official page on 2026-06-17.
Data last verified 2026-04-03. How we verify our data.
In Boston, MA, you can combine this program with other local help to cut your cost:
A grant-savvy contractor in Boston, MA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.
You will likely need a contractor to apply
Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Boston early keeps your application moving.
Get matched with a contractorThis benefit is usually applied as an instant discount, so there is no out-of-pocket wait.
Each program sets its own contractor rules. Check the official program page for exact requirements.
Documents you will likely need
Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.
Deadline: Ongoing, schedule any time
Ask us. It is free, and a real person answers within a business day.
Email us about this programMass Save Free Home Energy Assessment is open to homeowners and renters in Boston, MA. It has no income limit.
Apply directly with Mass Save, Eversource / National Grid / Utilities using the official program link on this page or call 866-527-7283. There is no middleman and no fee.
Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.
Rebates and discounts that stack on top of any grant. Most are free to use.
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
See All Programs