Insulation rebates by state

Connecticut. Energize CT residential insulation incentive: Professional install, Lesser of $2.00 per sq ft or 75% of cost, up to $10,000; Income-qualified or EJ community, Up to $2.50 per sq ft (EJ community projects capped at $15,000); HES Income Eligible, No-cost insulation, up to 100% of cost, through Home Energy Solutions – Income Eligible.

Maine. Efficiency Maine insulation and air sealing rebates: Any income, $2,000 per large zone (500+ sq ft attic, wall or basement); $1,000 per small zone; Moderate income, $3,000 per large zone; $1,500 per small zone; Low income, $4,000 per large zone; $2,000 per small zone; Attic air sealing, any income, $150 attic, $100 basement, $50 living space; Attic air sealing, moderate income, $225 attic, $150 basement, $75 living space; Attic air sealing, low income, $300 attic, $200 basement, $100 living space.

Vermont. Efficiency Vermont Home Performance with ENERGY STAR: Up to $7,000 off weatherization project costs.

New Hampshire. NHSaves Home Energy Performance (weatherization): Home Energy Performance, Up to $6,000 in rebates on overall improvement costs; Eversource income-eligible, No-cost air sealing and insulation for Eversource households at or below 100% of state median income.

Massachusetts. Mass Save insulation and air sealing: Standard, 75–100% off approved insulation and air sealing (75% used in the estimate); Income-eligible, No-cost insulation and air sealing for income-eligible residents.

North Carolina. Energy Saver North Carolina: Home Electrification and Appliance Rebates (HEAR): Below 80% of area median income, Up to 100% of project cost, up to $1,600 (insulation, air sealing and ventilation); 80–150% of area median income, Up to 50% of project cost, up to $1,600 (insulation, air sealing and ventilation).

Oregon. Energy Trust of Oregon insulation incentives: Attic, owner-occupied single-family or manufactured home, $1.25 per sq ft (existing R-18 or less, to R-38, or R-30 in a manufactured home); Attic, Savings Within Reach (income-qualified), $1.50 per sq ft.

Wisconsin. Focus on Energy insulation and air sealing rebates: ENERGY STAR air sealing, above 150% AMI, $850 (with Trade Ally attic or wall insulation); ENERGY STAR air sealing, 80–150% AMI, $1,160; ENERGY STAR air sealing, below 80% AMI, $1,475; Attic insulation, above 150% AMI, $650; Attic insulation, 80–150% AMI, $750; Attic insulation, below 80% AMI, $850.

Arizona. SRP attic insulation rebate: Up to 75% of professionally installed attic insulation, up to $600.

No open offer with a published amount was found in California, Florida, Michigan, Pennsylvania, Rhode Island, Texas; the methodology lists pages that could not be read.

Conditions to check before you buy

• Energize CT insulation (CT): Recommended during a Home Energy Solutions visit and approved before installation; Insulation Installers Network contractor; Up to 4 units; Attic floors: existing R-value no more than R19, finished R49 (R38 where R49 is not practicable). Source, checked October 20, 2026.
• Efficiency Maine insulation (ME): Installed by an Efficiency Maine Residential Registered Vendor; Low- and moderate-income rebates for owner-occupied principal residences; One insulation and one air-sealing rebate per zone; up to $8,600 per home ($5,600 per mobile home); Claim within six months of completion. Source, checked October 20, 2026.
• Efficiency Vermont weatherization (VT): Work done by an Efficiency Excellence Network contractor; Income-qualified households can get free weatherization through the Weatherization Assistance Program partners; DIY weatherization: $100 cash back. Source, checked October 20, 2026.
• NHSaves weatherization (NH): Participation in Home Energy Performance with an in-home energy audit; Income-eligible limit (Eversource): $156,133 for a household of four. Source, checked October 20, 2026.
• Mass Save insulation (MA): 1–4 unit homes; Offers follow a no-cost Home Energy Assessment; Municipal light plant customers are not part of Mass Save; Residents of designated equity communities qualify for 100% off weatherization. Source, checked October 20, 2026.
• Energy Saver NC (HEAR) (NC): Household income below 150% of area median income; LIEAP or Medicaid enrollment can qualify a household without further income checks; Single-family owners, multifamily building owners, and tenants with landlord permission; From September 1, 2026, applications not yet at rebate reservation must follow the new guidance: no fuel switching, electric-to-electric upgrades only; insulation and air sealing may be required with a heat pump project; Registered contractor; self-installed projects do not qualify; not retroactive; “Total rebate cannot exceed actual project costs”; up to $14,000 per dwelling. Source, checked October 21, 2026.
• Energy Trust insulation (OR): Existing attic insulation R-18 or less; Energy Trust trade ally, or self-install with pre-approval (call 1.866.368.7878 first); Application received within 60 days of installation; Incentives depend on the home's type and utility services. Source, checked October 21, 2026.
• Focus on Energy insulation (WI): Single-family homes of 1–3 units, for improvements made on or after January 1, 2026; Installed by a Focus on Energy Trade Ally; air sealing needs an energy assessment and Trade Ally attic or wall insulation; At least 51% of the home's heating from a participating utility; “Homes heated with wood, oil, or LP are not eligible”; new construction not eligible; No rebate for the same insulation category within the past three years; Capped at 100% of project costs; apply within 60 days, no later than January 31, 2027. Source, checked October 21, 2026.
• SRP insulation (AZ): Participating SRP Insulation program contractor, BPI-certified and licensed in Arizona; Existing insulation below R-19 improved to R-38; Done with air sealing unless documented as not needed; Not for new construction, attics over unconditioned space or mobile homes. Source, checked October 21, 2026.

IRA rebates for insulation and air sealing, state by state

• Arizona: the state energy office page was not reached on the last check.
• California: California HEEHRA (the state's IRA HEAR program) is closed to new applications. State page.
• Connecticut: Connecticut HEEHR (formerly HEAR) and HOMES (formerly HER) is not launched. State page.
• Florida: Florida Energy Saver Program (HOMES and HEEHR) is not launched. State page.
• Maine: Maine IRA Home Energy Rebates is limited. State page.
• Massachusetts: Massachusetts HEAR and HER (IRA home energy rebates) is not launched. State page.
• Michigan: Michigan Home Energy Rebates (MiHER) is limited. State page.
• New Hampshire: NH Home Electrification and Appliance Rebates (HEAR) is not launched; the state page lists a planned cap of $1,600 for insulation and air sealing, not claimable today. State page.
• North Carolina: Energy Saver North Carolina: Home Electrification and Appliance Rebates (HEAR) is open. State page.
• Oregon: Oregon Home Energy Rebate Programs (HOMES and HEAR) is not launched. State page.
• Pennsylvania: the state energy office page was not reached on the last check.
• Rhode Island: Rhode Island HEAR and HOMES is limited; the pilot runs in 11 municipalities. State page.
• Texas: Texas Home Energy Rebates (HOMES and HEAR) is not launched. State page.
• Vermont: Vermont IRA home energy rebates (HOMES and HEAR) is not launched. State page.
• Wisconsin: Wisconsin IRA Home Energy Rebates (HOMES and HEAR) is open. State page.

Federal credit

Energy Efficient Home Improvement Credit (IRC §25C): 30% of insulation and air-sealing materials, within the $1,200 annual limit (labor not included). Not allowed for property placed in service after December 31, 2025. (IRS: Energy Efficient Home Improvement Credit; details). Income-qualified tiers exist in Connecticut, Maine, Massachusetts, New Hampshire, North Carolina, Oregon and Wisconsin. 25 open offers are listed across the covered states. Guides: how rebates stack, income tiers.

Rebates are set by each program and can change or close without notice; the program's own page and application decide what is paid. This page is information, not tax, legal or financial advice. Amounts last checked October 21, 2026.