Maine Homeowners Can Save Thousands
on Energy Upgrades in 2026
Efficiency Maine rebates lower the cost of insulation, heat pump, and water heater upgrades. Insulation and air sealing rebates are a fixed amount per zone of the house, set by your income tier. We're a registered Efficiency Maine vendor. We handle all the paperwork and deduct your rebate from your invoice before you pay.
Three Ways to Save on Your Energy Upgrades
Efficiency Maine
Heat Pump Rebates
- $1,000–$3,000 per outdoor unit
- Up to $9,000 for low-income households
- Deducted from your invoice upfront
- We handle all paperwork
- Income-qualified rates available
Efficiency Maine
Insulation Rebates
- Up to $8,600 for weatherization
- Covers insulation + air sealing
- Deducted from your invoice upfront
- Income-qualified rates available
- Can be combined with other EM rebates
Efficiency Maine
Heat Pump Water Heater
- $1,150 mail-in rebate
- Save $500+/year on water heating
- Pays for itself in under a year
- 10+ year warranty (vs. 6 for standard)
- We handle installation + paperwork
Current Efficiency Maine Rebates
| Upgrade | Any Income | Moderate Income | Low Income |
|---|---|---|---|
| Insulation & Air Sealing (whole home) | up to $6,300 | up to $8,600 | up to $8,600 |
| Heat Pumps (per outdoor unit) | $1,000 (up to $3,000) | $2,000 (up to $6,000) | $3,000 (up to $9,000) |
| Heat Pump Water Heater | $1,150 rebate | $1,150 rebate | $1,150 rebate |
Rebate amounts shown are maximums. Eligibility requirements apply. Program details and incentive amounts are subject to change by Efficiency Maine.
Each program is paid separately. The $500 bonus applies to eligible whole-home heat pump upgrades through December 31, 2026. The insulation and air sealing limit is $5,600 for a mobile home. Amounts are income-dependent. Source: efficiencymaine.com.
Estimate Your Rebate Savings
Select the upgrades you're considering and your income tier to see your estimated rebate.
Household Income Tier
No income verification needed. All Maine ratepayers qualify.
Select Your Upgrades & Adjust Cost
Your Bottom Line
Here's what it all adds up to: what you'd invest, what Efficiency Maine pays back, and what you'd pay every month after rebates and financing.
Estimated Project Cost
Your Rebate Savings
You Pay
Rebate deducted from your invoice upfront.
or finance for
10-year Efficiency Maine Green Bank loan at 7.99% APR
Get My Free AssessmentEstimate only. Actual rebate depends on project scope, costs, and Efficiency Maine program terms. We calculate your exact rebate at your free assessment.
Flexible Financing for Every Budget
Two programs, both unsecured (no lien on your home). We will help you find the right fit at your free assessment.
Efficiency Maine Green Bank
State-backed, purpose-built for energy efficiency. Best rates available for most customers.
| Option | Term | APR | Notes |
|---|---|---|---|
| 0% APR | 1 year | 0% | $500 origination fee |
| Any Income | 5 years | 5.99% | No origination fee |
| Any Income | 10 years | 7.99% | No origination fee |
| Income-Based | 10 years | 5.99% | Max $7,500; pre-approval required |
- Maximum loan: $25,000
- Unsecured: no lien on your home
- Covers qualifying energy efficiency upgrades
NEIF Energy Plus
Maximum flexibility. Finance a broader range of home improvements in one loan, including non-energy upgrades.
| Term | APR | Monthly Payment (per $10k) |
|---|---|---|
| 3 years | 9.99% | ~$323/mo |
| 5 years | 9.99% | ~$212/mo |
| 10 years | 9.99% | ~$132/mo |
- Loan range: $2,500-$50,000
- Unsecured: no lien on your home, no prepayment penalties
- Covers energy + non-energy improvements (50% energy minimum)
- Instant credit decision
Combine Both Programs
For larger projects: use Efficiency Maine Green Bank for the energy work (up to $25,000, better rates) and NEIF Energy Plus for additional improvements or amounts above $25,000. Both are unsecured. We will help you figure out the right financing mix at your free assessment.
Example: Whole-Home Upgrade
A $33,500 project (insulation, air sealing, two single-zone heat pumps):
- Insulation rebate, whole home (any-income tier): $6,300
- Heat pump rebate (2 units): $2,000
- Whole-home heat pump bonus: $500
- After rebates: $24,700
- Green Bank loan (10 yr, 7.99%): $24,700 at ~$300/mo
- Out of pocket: $0
See our complete energy financing guide for all loan options and monthly payment examples.
Financing a heat pump specifically? See our 0% heat pump financing and rebates page for loan terms and how to apply.
Learn more: Phasing Your Home Energy Upgrade Over Time.
We Handle Everything: You Just Save
As a registered Efficiency Maine vendor, we manage the entire rebate process on your behalf.
Free Assessment
We assess your home and calculate your exact rebate eligibility, before you commit to anything.
Rebate Deducted Upfront
Your Efficiency Maine rebate is deducted directly from your invoice. You pay the net amount. No waiting for a check.
We File the Paperwork
We submit all required documentation to Efficiency Maine on your behalf. You don't have to do a thing.