Energize CT Home Insulation & Air Sealing Rebates

Energize CT / Eversource / CT Natural Gas

Available Energy Assistance

About This Program

Energize CT Home Insulation & Air Sealing Rebates is available to homeowners in Hartford, CT.

Energize CT offers rebates of up to $2.00 per square foot for qualifying attic insulation upgrades, plus additional rebates for air sealing and duct sealing performed after a Home Energy Solutions assessment. A standard HES visit costs $75 (waived if scheduled before March 31, 2026) and unlocks access to the full rebate portfolio. Both Eversource and CT natural gas customers are eligible.

Up to $2.00/sq ft for attic insulation; air/duct sealing adds additional savings.

Official source site checked live on 2026-06-22.

Data last verified 2026-04-03. How we verify our data.

In Hartford, CT, you can combine this program with other local help to cut your cost:

Key Details

  • Up to $2.00 per square foot for qualifying attic insulation
  • Additional rebates for air sealing and duct sealing
  • Complete a $75 HES assessment first (waived if before 3/31/2026)
  • Available to Eversource and CT gas customers
  • Combine with 25C federal tax credit for maximum savings

How to Apply

Get free help applying Visit Official Program Page Track this program

877-947-3873

A grant-savvy contractor in Hartford, 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 Hartford 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

  • Your federal tax return for the year of the work (this benefit is claimed on your taxes, not through a separate application).
  • 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).
  • 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; complete HES assessment first for full rebate access

Questions about this program?

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

Email us about this program

Frequently asked questions

How much can Energize CT Home Insulation & Air Sealing Rebates provide in Hartford, CT?

Up to $2.00/sq ft for attic insulation; air/duct sealing rebates.

Who qualifies for Energize CT Home Insulation & Air Sealing Rebates in Hartford?

Energize CT Home Insulation & Air Sealing Rebates is open to homeowners in Hartford, CT.

How do I apply for Energize CT Home Insulation & Air Sealing Rebates in Hartford, CT?

Apply directly with Energize CT / Eversource / CT Natural Gas using the official program link on this page or call 877-947-3873. There is no middleman and no fee.

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 Hartford, CT contractors

Find More Programs in Hartford, CT

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

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