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Windows & Doors · Merrimac, MA

Windows & Doors in Merrimac, Massachusetts

What applies to this work in Merrimac, Essex County: Mass Save, rebates and financing, and the permit. Then the contractors serving the town.

30 contractors serving Merrimac.

Is Merrimac in Mass Save?

Partly. Merrimac is a municipal light plant town: its electricity comes from the Merrimac Municipal Light Department, and light plant customers are outside Mass Save's electric program. National Grid, an investor-owned gas company, also serves the town, so a home with a National Grid gas account can use Mass Save through it.

For weatherization, a National Grid gas account is enough, even one that only heats water. A home with no gas service uses the light plant's own programs.

Merrimac is on the state's list of municipal light plants; Mass Save in municipal light plant towns has the full decision tree.

Window rebates and financing in Merrimac

Through a National Grid gas account, Mass Save pays $75 per window in 2026, and only when ENERGY STAR Most Efficient windows replace single-pane windows after you complete the weatherization recommendations from a Home Energy Assessment.

Replacing double-pane windows earns no rebate. The 0% HEAT Loan can finance ENERGY STAR replacement windows, but only alongside completed weatherization recommendations.

Do you need a permit for replacement windows or doors in Merrimac?

Plan on one. Window and door replacement is not on the Massachusetts building code's list of permit-exempt work, and the Merrimac Building Department decides whether a same-size swap counts as an ordinary repair. 50% of Merrimac's homes were built before 1980 (Census ACS 2018-2022), and work that disturbs paint in a home built before 1978 has to follow the lead-safe renovation rules.

permits.llc carries the rules: its Massachusetts guide to the permit for replacement windows or doors and the Merrimac Building Department page, with the department's contact and portal.

How many permits for window or door work are filed in Merrimac?

9 permits that mention window or door work were filed in Merrimac in August and September 2026, since permits.llc began covering Merrimac.

That counts the permits whose description or permit type names the work; nearly all of Merrimac's building permits in that period describe the work.

Source: Merrimac's permit filings on permits.llc, counted October 2026.

Contractors serving Merrimac

Claimed listings within 5 miles come first, then the rest by rating, then distance. Google ratings as of October 2026. How we list and rank contractors

Common questions about Windows & Doors in Merrimac

Is Merrimac in Mass Save?
Partly. Merrimac is a municipal light plant town: its electricity comes from the Merrimac Municipal Light Department, and light plant customers are outside Mass Save's electric program. National Grid, an investor-owned gas company, also serves the town, so a home with a National Grid gas account can use Mass Save through it.
Is there a Mass Save rebate for new windows in Merrimac?
Through a National Grid gas account, Mass Save pays $75 per window in 2026, and only when ENERGY STAR Most Efficient windows replace single-pane windows after you complete the weatherization recommendations from a Home Energy Assessment. Replacing double-pane windows earns no rebate.
Can I finance replacement windows in Merrimac with the HEAT Loan?
Only together with weatherization. The 0% HEAT Loan covers ENERGY STAR replacement windows only alongside completed weatherization recommendations.
Do you need a permit for replacement windows or doors in Merrimac?
Plan on one. Window and door replacement is not on the Massachusetts building code's list of permit-exempt work, and the Merrimac Building Department decides whether a same-size swap counts as an ordinary repair. 50% of Merrimac's homes were built before 1980 (Census ACS 2018-2022), and work that disturbs paint in a home built before 1978 has to follow the lead-safe renovation rules.

Windows & Doors guides for Massachusetts homeowners

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Comparing contractors across Essex County? See all window and door contractors serving the North Shore and the Merrimack Valley.

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