15 Best Solar Companies in Gilmanton, NH (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Gilmanton based on:

  • Customer review scores
  • Service area for Gilmanton, NH
  • Company policies and services offered
  • Accreditations and certifications

Average Gilmanton homeowner saves $1,731/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Gilmanton

As a homeowner in Gilmanton, you may be planning on switching to solar and curious about the best solar companies in your area. Solar could be a fantastic idea since it has lots of perks. After 20 years of offsetting your energy costs with a solar system, you can save about $21,000 on your power bills.


Here, we’ll give you a list of some of the best solar companies in Gilmanton to make your choice a little bit easier.To get free quotes from the top solar companies in Gilmanton, click the "get quote" button below.

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Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch Rankings for Solar Companies in Gilmanton

Best Local Installer
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EcoWatch Rating

5.0/5

Sunup Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs

Website: http://www.sunupsolarnh.com/
Address: Dollard Rd, Auburn, NH 03032
Phone: 6038602509
Outstanding Local Installer
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EcoWatch Rating

5.0/5

ReVision Energy

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Community Solar Projects
  • Service icon Financing Assistance
  • Service icon Battery Storage

Website: https://www.revisionenergy.com/locations/brentwood-nh-solar-showroom/
Address: 7 Commercial Dr, Brentwood, NH 03833
Phone: 6036791777
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Sunergy Solutions, LLC

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: https://sunergysolutionsllc.com/
Address: 75 Gilcreast Rd STE 210, Londonderry, NH 03053
Phone: 8444276527
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Helios Solar Energy

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

Website: http://www.hssolarpower.com/
Address: 225 Broadway Suite 910, Methuen, MA 01844
Phone: 9783811815
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solaflect Energy

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: https://www.solaflect.com/
Address: 326 Main St #4, Norwich, VT 05055
Phone: 8026493700
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Sundial Solar

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Tesla Powerwall
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation

Website: http://sundialsolarnh.com/
Address: 7 Pleasant St Ext, Concord, NH 03301
Phone: 6039610045
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Granite State Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://www.granitestatesolar.com/
Address: 57 Ryan Rd, Bow, NH 03304
Phone: 6033694318
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Critical Mass Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: https://www.criticalmasssolar.com/
Address: 33 Leighton St, Pepperell, MA 01463
Phone: 9782721486
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Goggin Energy

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation

Website: https://www.gogginenergy.com/
Address: 75 W Commercial St STE 202, Portland, ME 04101
Phone: 2077727557
Outstanding Local Installer
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EcoWatch Rating

4.5/5

HB Energy Solutions

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

Website: https://www.hbenergy.com/
Address: 132 Bridge St, Springfield, VT 05156
Phone: 8028852300
Outstanding Local Installer
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EcoWatch Rating

4.1/5

Invaleon Technologies Corporation

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Prompt Service Delivery
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Tesla Powerwall
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.invaleonsolar.com/
Address: 26 Parkridge Rd #1b, Haverhill, MA 01835
Phone: 8573604906
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SAVKAT SOLAR

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Grid-Tied Solar System
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Consultation

Website: http://savkat.com/
Address: 4 Tinkham Ave, Derry, NH 03038
Phone: 6033165979
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Bright Home Solutions, Inc.

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation

Website: http://www.brighthomesolutions.com/
Address: 240 Andover St 2nd Floor, Wilmington, MA 01887
Phone: 6173697222
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Univix Power Solutions

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://univix.com/
Address: 14 Lexington Dr UNIT 1, Laconia, NH 03246
Phone: 6037092176
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sun Team

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Off-Grid Solar Systems
  • Service icon Battery Storage

Website: http://www.mysunteam.com/
Address: 58 Holden Rd, Shirley, MA 01464
Phone: 4086580891

Methodology: How We Ranked the Best Solar Companies in Gilmanton

EcoWatch's solar experts analyzed each solar company in Gilmanton based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Gilmanton


Below are some the criteria we examined specifically for New Hampshire solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Gilmanton

Solar panels run off a free energy source — the sun — but before you can take advantage of this you must first pay to install your panels.The cost of solar and the savings it generates vary depending on some key factors such as:

  • The type and model of solar panels you’re planning on getting: Some are more costly, so that will affect your budget for your solar project.
  • Incentives: Tax-paying citizens who install a solar energy system this year can save 0 of their total solar spend by using the federal solar investment tax credit. You can also save about $21,000 on your electricity bills over 20 years not including incentives.
  • The amount of sunlight your rooftop gets: Because of Gilmanton’s relatively low amount of average daily sunlight, you might not see as many savings on your electricity bills.
  • How much power your household needs: If your home needs to use a lot of energy, you'll benefit more from installing solar panels.

Though a solar panel system costs a decent chunk of money upfront, it can save you thousands of dollars over time. The question of how much, though, depends on a number of factors, such as the size of your house and incentives.

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Solar Incentives in Gilmanton

Although solar power is typically a $15,000 to $25,000 investment, it can save you a lot of money over time because of lower energy bills and government incentives.Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of how much your solar project cost on your tax return, lowering the amount of taxes you owe that year. Plus, there may be some local incentives that can save you some extra money too. Our article on solar incentives goes over more in-depth information on the incentives you can find in Gilmanton.

Environmental Impact of Switching to Solar in Gilmanton

Many want to do what they can to help the planet, which for many is the prime reason for installing a solar system.You may be wondering – how much does making the switch help the planet anyway? Something that can dramatically affect your carbon footprint is your commute time and how much you drive overall. If you install solar panels and drive an electric car, you can vastly reduce your carbon dioxide emissions by charging your car at home.In fact, if you install solar panels, you could reduce your carbon dioxide emissions by about 40 pounds each year. Since solar energy is renewable and generates electricity without a carbon footprint, adding solar panels to your home is one easy step you can take to help protect the environment.

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Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Gilmanton, NH Solar Company Rankings FAQs

Which solar panel installer is the best near me?

The top local solar company in Gilmanton is Sunup Solar, with a rating of 5.00 stars.

What are the best and worst things about solar power?

The greatest advantages of solar power are that it can lower or, for some, 100% eradicate your electricity bills, improve your home’s value and reduce your carbon footprint. The main disadvantages are that solar panels can be expensive to install, you may not save as much if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.

Is it worth installing solar panels on my home?

Solar panels need a large upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like how much you pay for electricity and how much direct sunlight your roof gets.

What are the different kinds of solar panels?

The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also more expensive. Polycrystalline panels cost less but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other kinds can’t, like on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, roof configuration and how much efficiency you're looking for.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.