Rebates and tax credits in Connecticut

Money toward an HRV or ERV

Programs that pay toward the unit itself. Some take the money off at the distributor, so ask whether an installer’s price already includes it.

• Energize Connecticut ERV/HRV instant rebate

  Energize Connecticut (Eversource and UI) · Residential electric service customers of Eversource or UI; the equipment must be installed in that utility's service territory

  Up to $500 instant rebate per qualifying unit

  Taken off the price at purchase through a participating Supply Chain Partner (distributor). The unit must be on the Energize CT Qualified Product List. Pre-approval is required for more than one unit. Incentive period January 1, 2026 to December 31, 2026. Financing not available.

  Names HRVs or ERVsProgram page: Incentive Duration: 01/01/26 - 12/31/26

Federal home energy rebates

Federal money that Connecticut runs. HEAR has a category for “insulation, air sealing, and ventilation” worth up to $1,600 for households under 150% of area median income; each state decides what counts as ventilation. ENERGY STAR’s table for HEAR says this category requires ENERGY STAR certification, and ENERGY STAR’s U.S. criteria for ventilation cover fans, not HRVs or ERVs, so ask the program whether an HRV or ERV counts before relying on it. HOMES pays toward whole-home upgrades modeled to save energy.

Air sealing and insulation

These programs are more common than ventilation rebates, and sealing a house is often what makes it need planned fresh air. If a program is sealing yours, ask whether it requires ventilation afterward and whether it pays for it.

• Home Energy Solutions, with the Insulation, Attic Access Covers and Ventilation Rebate

  Energize Connecticut · Energize Connecticut residential customers (the terms we read do not list the utilities)

  Not stated in the document we read. The 2026 rebate terms say the insulation rebate requires taking part in Home Energy Solutions and using an approved installer, for work done January 1, 2026 to March 31, 2027 (postmark deadline March 31, 2027). Specific insulation, attic access cover and ventilation rules are in a separate rebate application we did not see.

  Ventilation not mentioned in what we readProgram page: Rev. 09/26; 2026 program year

State tax credits

We didn’t find a Connecticut tax credit for ventilation, air sealing or insulation, and couldn’t confirm there is none.

Low-income help

The federal Weatherization Assistance Program can pay for air sealing and insulation for households that qualify by income. Your state energy office can say who runs it.

Before you sign

1. Don’t start work yet. Many programs need pre-approval, a participating contractor or a test first, and work begun early often can’t qualify.
2. Write down your electric and gas utilities. Rebates usually follow the utility, not the town.
3. Read the conditions: a listed contractor, a qualifying model, your heating fuel, income limits, and install and claim deadlines.
4. Ask each installer whether any discount is already in their price, and who files the paperwork.
5. Get it in writing: each rebate, who applies for it, and what happens to the price if it’s denied.

More on costs and how to check: What drives the cost of ventilation and How to compare quotes.

Worth knowing

• The Energize CT rebate for insulation is named "Insulation, Attic Access Covers and Ventilation," but the document we read does not say what kind of ventilation it covers. Do not assume it covers an HRV or ERV; the separate ERV/HRV instant rebate does. (source s13)
• DOE changed the federal HEAR rules in May 2026 (Program Notice 26-2, effective May 29, 2026): HEAR can no longer pay to replace gas, oil or propane equipment with electric, homes generally must use rebates for insulation and air sealing before heating and cooling upgrades, and ventilation is still a HEAR project type that can be claimed in stages. Programs that had not launched must follow the new rules before launching. (sources s39, s40)
• We did not confirm Connecticut's Weatherization Assistance Program administrator or any state tax break yet.