National Grid / Mass Save
Comprehensive no-cost energy efficiency improvements for income-eligible Marlborough households. Includes insulation, air sealing, heating system upgrades, LED lighting, water heater replacement, and appliance rebates. Income at or below 60% state median required.
Full value of energy improvements covered at no cost to eligible households
Data last verified 2026-06-09. How we verify our data.
A grant-savvy contractor in Marlborough, 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 Marlborough early keeps your application moving.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
Deadline: Ongoing program
Ask us. It is free, and a real person answers within a business day.
Email us about this programGrant-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.
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