Energize CT Window & Door Rebate

Energize CT / Eversource

Available Weatherization

About This Program

Rebates for installing ENERGY STAR certified windows and doors in Connecticut homes. Incentive amounts vary by product type and efficiency rating, with enhanced rebates available for income-qualified households.

Typical rebate for full home window replacement

Official program page checked live on 2026-06-17.

Data last verified 2026-06-09. How we verify our data.

Key Details

  • Rebates for ENERGY STAR windows and doors
  • Up to $1,500 for qualifying installations
  • Must meet minimum efficiency standards
  • Enhanced rebates for income-qualified homes
  • Reduces heating and cooling costs

How to Apply

Get free help applying Visit Official Program Page Track this program

(877) 947-3873

A grant-savvy contractor in Westport, CT 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 Westport early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Ongoing while funds available

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Westport, CT contractors

Find More Programs in Westport, CT

This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

See All Programs