Which Energy Upgrades Are Worth It in the Lakes Region? What Lowers Your Bills, What Buyers Notice, and What Can Wait

By Dan Batten, The NH Agent | Coldwell Banker Realty | Published Nov. 3, 2026

TL;DR: The short version

  • Federal tax credits no longer apply to projects finished after December 31, 2025.1 New Hampshire's NHSaves program still lists incentives of up to 75 percent of project cost, capped at $6,000.2
  • Heating oil prices in New Hampshire are $6.068 a gallon, up $2.587 from a year ago. Propane is $3.904, up $0.460.3
  • Judge a project by what you pay after incentives, not the sticker price. In the example below, the same project returns about $8 to $11 a month per $2,000 out of pocket with no incentive, and about $21 to $29 with the full $6,000 incentive.
  • Every Lakes Region NH listing shows heating fuel, cooling and window details. Documentation helps a buyer compare homes. No local data I have found shows a guaranteed sale-price bump.

For the past few years, a lot of the advice about energy upgrades started with a federal tax credit: 30 percent of the cost for many projects.1 That credit is not available for work completed after December 31, 2025.1 A tax professional can tell you how that applies to your situation.

That doesn't mean help has disappeared in New Hampshire. NHSaves, delivered by Eversource, Liberty Utilities, New Hampshire Electric Co-op and Unitil, still lists NHSaves rebates and incentives for weatherization and heating equipment.2 And the cost side has changed fast: the U.S. Energy Information Administration's October 26, 2026 survey puts New Hampshire residential heating oil at $6.068 a gallon, up $2.587 from a year ago, and propane at $3.904 a gallon, up $0.460.3

Without a federal credit tipping the scales, each project has to earn its place on its own: on your bills, in how comfortable the house feels, or when you sell. So as you plan for the colder months, here is how to sort out which upgrades fit your house and your plans, whether you own in Moultonborough NH, near Lake Winnipesaukee, or inland in Carroll or Belknap County.

What do you want the upgrade to do?

A home office that's chilly every afternoon is a different problem from a furnace nearing replacement. Either can justify spending money, but the math changes with the reason for the work. An upgrade can pay you back three ways: lower fuel or electric bills, a more comfortable house, and a better position when it's time to sell. Those three don't always show up together or on the same schedule.

If your furnace or boiler is near the end of its life anyway, the number that matters is the price difference between an efficient replacement and a standard one. That difference is what your savings have to cover. If the current system still works well, the savings have to cover the whole project.

Then think about your timeline. Someone planning to stay another ten years has more time to collect on lower bills than someone listing next spring. And comfort counts. A bedroom that finally stays warm is a perfectly good reason to do the work, as long as you know that's the reason.

Your heating setup shapes the math. In my experience, most homes around here heat with oil, propane, mini-splits or a combination of them, and plenty add a wood or pellet stove. Each responds differently to fuel prices and to weatherization, which is why the same project can pay back at different speeds in two neighboring houses.

Where should a Lakes Region homeowner start?

The inexpensive fixes usually come before the expensive ones. NHSaves lists the basics: seal air leaks around windows, doors and attics; consider added insulation in the attic and basement; have the heating system serviced before winter; and consider a smart thermostat.4 A home energy audit New Hampshire homeowners can book through NHSaves can pinpoint where the leaks are. A contractor quoted in a November 2024 Concord Monitor story called a $100 audit a low-cost way to check a home's condition.5

NHSaves case studies from this year show what the work can look like. A 1926 home in Jaffrey got air sealing, insulation and crawl space work, with a $6,000 incentive.6 A Spofford home built around 1900 got basement and crawl space air sealing and insulation, with an incentive covering 75 percent of the project cost.7 Neither write-up lists the total cost or a payback period, so treat them as examples of what the work involves, not as proof of how fast any project pays for itself.

What does an NHSaves incentive change?

NHSaves says its Home Energy Performance program may cover 75 percent of project cost, up to $6,000, depending on your home assessment.2 A City of Dover notice from January 2026 describes the same 75 percent and $6,000 limit.8 Income-eligible households may qualify for Home Energy Assistance, which covers 100 percent of the weatherization cost. NHEC says it applies to income-eligible homeowners and renters, and the Dover notice describes it for Eversource customers at or below 100 percent of state median income.8,9 Eversource and NHEC both have a presence in Moultonborough, as they do in several Lakes Region towns, so check which utility serves your address.

What can you expect to save? A November 2024 Concord Monitor report on NHSaves says a typical project could save a household about 20 percent on yearly heating and cooling costs.5 Your result will depend on your house, your heating fuel and the work done, and it is a projection, not a guarantee.

Here is a worked illustration of why the out-of-pocket cost matters so much. These numbers are assumptions chosen for round figures. They are not a quote and not a Lakes Region average. Say a household spends $3,000 a year on heat (about 500 gallons of oil at today's $6.068 a gallon is roughly $3,034). A weatherization project saves 15 to 20 percent of that, or $450 to $600 a year, which is $37.50 to $50 a month. The project costs $9,500.

Scenario You pay Years to recover your cost Monthly savings per $2,000 you pay
No incentive $9,500 15.8 to 21.1 $7.89 to $10.53
75% of cost, capped at $6,000 $3,500 5.8 to 7.8 $21.43 to $28.57

Read the last column this way: for every $2,000 the homeowner actually pays, the project avoids about $21 to $29 a month in fuel cost in the second row, compared with about $8 to $11 in the first. The incentive doesn't change how much energy the house saves. It changes what you paid to get there.

Fuel prices matter too. These savings are a percentage of your bill, so when oil rises, the dollar value of the same gallons saved rises with it. Oil is up $2.587 a gallon from a year ago in the EIA survey.3 If prices fall, the same project saves fewer dollars even though the gallons saved stay about the same.

These numbers are projections, not guarantees. The savings and payback figures above are estimates built on assumptions. Your actual results will depend on your home, your fuel and electric prices, how you use the house and the work that is completed, and incentives are subject to eligibility and program terms.

When does a heat pump make sense?

A bigger upgrade like a heat pump rebate New Hampshire homeowners can claim through NHSaves follows the same logic: compare what you pay after rebates with what you expect to save. For 2026 installations, NHSaves lists a standard rebate of $250 per ton, and $2,000 per ton when a heat pump replaces electric resistance heat (for Eversource, Liberty and Unitil customers, that higher rate applies to installs from March 23, 2026). NHEC lists $2,000 per ton for replacing electric resistance as well. A Wi-Fi thermostat installed with a qualified system earns $85.10

NHSaves says rebates are available while funds last and may change at any time. Its page lists a January 1 to December 31, 2026 install window (one line of the page says December 30), with mail-in forms postmarked by January 30, 2027, so confirm the dates with NHSaves before you commit.10 Whether a heat pump beats your current system depends on your fuel, your house and the installation. Ask any contractor for a quote that shows the assumptions behind the savings estimate.

What do buyers notice, and what can't be promised?

Open any Lakes Region NH homes listing sheet and the energy story is in the fields: heating fuel and system type, cooling, window type and backup power. A recent Madison listing, for example, lists propane hot-water baseboard heat, double-pane windows, mini-split cooling and a standby generator. A Bath home that closed this month lists oil baseboard heat and a wood stove, along with high-efficiency Andersen A-Series windows and a standby generator.

What I can't tell you is that an upgrade will raise your sale price by a set amount. I haven't found Lakes Region sales data that shows it, so I won't promise it. What does help is being able to show your work: the audit report, contractor invoices, rebate paperwork, system service records, and a year of fuel or electric bills. For sellers, that documentation could also help a home compete against homes that don't have similar energy-saving upgrades.

What do the Moultonborough NH real estate numbers say?

Through September 2026, 78 single-family homes closed in Moultonborough, up 11.4 percent from 70 a year earlier. The median time to sell was 48 days, and homes received 95.1 percent of their original list price on average. At the end of September there were 35 homes for sale, about 3.9 months of supply.11 September on its own had only 10 closed sales, so treat the monthly figures as directional and the year-to-date figures as the steadier read.11

In a market where homes take about seven weeks to sell and typically don't receive the full original list price, details a buyer can verify, like a recent energy audit, service records and winter fuel or electric bills, give them something concrete to compare.

Frequently asked questions

Are there still energy rebates in New Hampshire?

Yes. NHSaves lists weatherization incentives of up to 75 percent of project cost, capped at $6,000, and per-ton rebates for heat pumps for 2026 installations.2,10 Terms can change and funds are limited, so check NHSaves before you start.

Do the incentives apply if I heat with oil or propane?

NHSaves says its enhanced weatherization approach helps customers save on oil, propane and wood heating fuels, and its 2026 case studies include oil-heated homes.2,6,7 Eligibility depends on your assessment, so confirm your situation with NHSaves.

How much can weatherization save?

A November 2024 Concord Monitor report says a typical project could save about 20 percent on yearly heating and cooling costs.5 Actual savings vary with the house, the fuel and the work done.

Will an energy upgrade raise my sale price?

I haven't found Lakes Region sales data showing a set increase, so I don't promise one. Documentation of the work gives buyers something to verify.

What if my household is income-eligible?

Home Energy Assistance covers 100 percent of weatherization cost for income-eligible households.8,9 The New Hampshire Department of Energy's Weatherization Assistance Program uses an income limit of 60 percent of state median income and starts with an application through your local Community Action Agency.12

Where do I start?

With an audit. It shows where your house is losing heat, and every quote you collect afterward is easier to compare.4,5

Ready to talk it through?

If you're weighing a project this winter, or thinking about selling in Carroll County NH or Belknap County NH in the next few years, I'm happy to talk through what buyers in our area look at, so the work you take on now still makes sense later. No pressure, just a real conversation.

Dan Batten | Coldwell Banker Realty | 32 Whittier Hwy, Moultonborough, NH 03254 | 603-253-4345 | Dan@TheNhAgent.com | www.TheNhAgent.com

Sources

  1. Internal Revenue Service, Instructions for Form 5695 (2025), Energy Efficient Home Improvement Credit. https://www.irs.gov/instructions/i5695
  2. NHSaves, Home Energy Performance program page (page last modified September 17, 2026). https://nhsaves.com/?p=1396
  3. U.S. Energy Information Administration, Heating Oil and Propane Update, New Hampshire residential prices, survey dated October 26, 2026. https://www.eia.gov/petroleum/heatingoilpropane/
  4. NHSaves, "Weatherization Tips You Need to Know to Prep Your Home for Winter," November 14, 2025. https://nhsaves.com/learn/2025/11/weatherization-tips-you-need-to-know-to-prep-your-home-for-winter/
  5. Concord Monitor, "Is your home drafty? New Hampshire energy efficiency programs could help," November 21, 2024. https://articles.concordmonitor.com/Is-your-home-drafty-New-Hampshire-energy-efficiency-programs-could-help-58103789
  6. NHSaves, "Comfort Restored in 100-Year-Old Home, Jaffrey, New Hampshire," May 29, 2026. https://nhsaves.com/learn/2026/05/comfort-restored-in-100-year-old-home-jaffrey-new-hampshire/
  7. NHSaves, "Sealing in Comfort and Savings in a Historic Multifamily Home, Spofford, New Hampshire," July 24, 2026. https://nhsaves.com/learn/2026/07/sealing-in-comfort-and-savings-in-a-historic-multifamily-home-spofford-new-hampshire/
  8. City of Dover, NH, "Weatherize Your Home," news post dated January 21, 2026. https://www.dover.nh.gov/services/online-services/news-events/news-2026/weatherize-your-home.html
  9. New Hampshire Electric Co-op, energy efficiency and weatherization page. https://www.https://www.nhec.com/energy-savings/#residentialnhec.com/?p=13328
  10. NHSaves, Heat Pump rebates, 2026 program year. https://nhsaves.com/rebates/electric-equipment/
  11. New Hampshire REALTORS and PrimeMLS, Local Market Update, Moultonborough, September 2026 (current as of October 5, 2026), single-family residences.
  12. New Hampshire Department of Energy, Weatherization Assistance Program. https://energy.nh.gov/consumers/help-energy-and-utility-bills/weatherization-assistance-program