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Windows & Doors · Somerville, MA

Windows & Doors in Somerville, Massachusetts

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

30 contractors serving Somerville, including 1 based in town.

Is Somerville in Mass Save?

Yes. Somerville gets its electricity from Eversource, not from a municipal light plant, so homes in Somerville are in the Mass Save program. Its natural gas comes from National Grid or Eversource, depending on the address (the state's list), both Mass Save sponsors.

Somerville is not on the state's list of municipal light plants. Mass Save is not statewide: 41 light plants serve all or part of 50 municipalities, and homes on their electric service are outside its electric program (Mass Save in municipal light plant towns).

Window rebates and financing in Somerville

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 Somerville?

Plan on one. Window and door replacement is not on the Massachusetts building code's list of permit-exempt work, and the Somerville Building Department decides whether a same-size swap counts as an ordinary repair. 83% of Somerville'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 Somerville Building Department page, with the department's contact and portal.

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

290 permits filed in Somerville from October 2025 through September 2026 mention window or door work.

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

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

Permits per month in Somerville that mention window or door work
19Oct20Nov27Dec10Jan13Feb25Mar19Apr29May39Jun34Jul31Aug24Sep

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

Contractors serving Somerville

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 Somerville

Is Somerville in Mass Save?
Yes. Somerville gets its electricity from Eversource, not from a municipal light plant, so homes in Somerville are in the Mass Save program. Its natural gas comes from National Grid or Eversource, depending on the address (the state's list), both Mass Save sponsors.
Is there a Mass Save rebate for new windows in Somerville?
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 Somerville 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 Somerville?
Plan on one. Window and door replacement is not on the Massachusetts building code's list of permit-exempt work, and the Somerville Building Department decides whether a same-size swap counts as an ordinary repair. 83% of Somerville'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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