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Windows & Doors · Concord, MA

Windows & Doors in Concord, Massachusetts

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

30 contractors serving Concord.

Is Concord in Mass Save?

Partly. Concord is a municipal light plant town: its electricity comes from the Concord Municipal Light Plant, 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.

Concord 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 Concord

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 Concord?

Plan on one. Window and door replacement is not on the Massachusetts building code's list of permit-exempt work, and the Concord Building Department decides whether a same-size swap counts as an ordinary repair. 66% of Concord'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 Concord Building Department page, with the department's contact and portal.

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

79 permits filed in Concord from October 2025 through September 2026 mention window or door work.

That counts only permits whose description or permit type names the work: 61% of Concord's building permits in that period describe the work, so the real number can be higher.

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

Permits per month in Concord that mention window or door work
11Oct4Nov7Dec4Jan4Feb12Mar6Apr5May12Jun7Jul4Aug3Sep

October 2025 to September 2026. Months with fewer than 3 permits are not shown.

Contractors serving Concord

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 Concord

Is Concord in Mass Save?
Partly. Concord is a municipal light plant town: its electricity comes from the Concord Municipal Light Plant, 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 Concord?
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 Concord 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 Concord?
Plan on one. Window and door replacement is not on the Massachusetts building code's list of permit-exempt work, and the Concord Building Department decides whether a same-size swap counts as an ordinary repair. 66% of Concord'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.

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