How much you get
$75/window — Mass Save pays $75 per window when you replace single-pane windows with ENERGY STAR Most Efficient certified windows.
Why this matters for Lawrence's older buildings
Lawrence's housing stock leans heavily on older triple-decker and multi-family buildings from its mill-city era, many of which still have original single-pane windows. That's exactly the situation this rebate targets — it only applies when you're replacing single-pane windows, not upgrading windows that are already double-paned.
How to claim it
- Schedule your free Mass Save home energy assessment (National Grid customers can also call 1-866-527-7283 directly)
- Get quotes from Mass Save-participating contractors serving Lawrence
- Work is installed
- Contractor or you file the rebate paperwork with Mass Save
- Rebate is applied at point of sale or reimbursed within weeks
Finding an installer in Lawrence
We're still building our verified installer network in Lawrence, so we don't have vetted local companies to list here yet. Browse our full directory of vetted installers across Massachusetts — several serve the wider Merrimack Valley, including Lawrence.
Browse the full Massachusetts installer directory →
Common questions
How much is the window rebate in Lawrence?
$75 per window, paid only after a free Mass Save Home Energy Assessment confirms the windows being replaced are single-pane and you've completed the weatherization work the assessment recommends.
Does the rebate apply to double-pane window upgrades in Lawrence?
No, this specific rebate targets single-pane window replacements. It doesn't apply to upgrading windows that are already double-paned.
Your utility: National Grid
National Grid delivers power to Lawrence and, as the note above the claim steps mentions, National Grid customers can call in directly (1-866-527-7283) to schedule the required Home Energy Assessment instead of going through the general Mass Save line. The $75/window figure is fixed statewide and doesn't change by utility, but National Grid is who a contractor calls if wiring in one of Lawrence's mill-era buildings needs attention before the window work.
What Lawrence's winters mean for this upgrade
Lawrence sits in the Merrimack Valley, and valley cities here run colder overnight than the Boston coast — NOAA's climate normals put Lawrence's January average low around 21°F, close to Springfield's and several degrees colder than Boston's. In a mill-era triple-decker with original single-pane sash, that cold turns into a heating bill fast, which is the real case for prioritizing the windows the assessment flags.
What Lawrence's winters mean for this upgrade's payback
Lawrence's average January daily low has been -5.9°C over the last 10 winters (2015-2024), with a coldest recorded day of -26.7°C — real measured data. The colder it gets outside, the more a poorly insulated wall or an old window actually costs you in heat loss, which is the real math behind why this rebate exists and why the payback tends to be faster in a climate like Lawrence's than in a milder one.
Next steps
View all Lawrence rebate programs → or check the official Mass Save site → for the current source of truth.