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

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

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

Average Hillsborough homeowner saves $1,616/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

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 Hillsborough

If you’re on the hunt for the best solar companies in Hillsborough, sifting through hundreds of options can be daunting, but it can pay off since switching to solar energy can offer so many fantastic benefits. While solar panels are a great investment, you’ll be able to make that amount back and then some, all while living more sustainably. In fact, you could be looking at saving about $19,000 over 20 years.


If you want to take advantage of the many perks of solar, we’re here to help you narrow down your options to find the Hillsborough solar installer that’s in the right price range for you.To receive free quotes from the best solar companies in Hillsborough, you can click "get quote" below.

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EcoWatch Rankings for Solar Companies in Hillsborough

Best Local Installer
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EcoWatch Rating

5.0/5

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

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

Sunergy Solutions, LLC

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation

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

Solaflect Energy

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

Services Offered

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

Website: https://www.solaflect.com/
Address: 326 Main St #4, Norwich, VT 05055
Phone: 8026493700
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 Panel Installation
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Community Solar Projects

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

Helios Solar Energy

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

Services Offered

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

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

4.9/5

Sundial Solar

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

Services Offered

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

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

Services Offered

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

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 Panel Installation
  • Service icon Financing Assistance

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

4.9/5

Future Energy Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Permit Assistance

Website: http://futureenergysolar.com/
Address: 21 Olympia Ave unit v, Woburn, MA 01801
Phone: 7819607005
Outstanding Local Installer
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EcoWatch Rating

4.8/5

PV Squared Solar (Pioneer Valley Photovoltaics)

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

Services Offered

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

Website: http://www.pvsquared.coop/
Address: 311 Wells St, Greenfield, MA 01301
Phone: 4137728788
Outstanding Local Installer
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EcoWatch Rating

4.8/5

altE Store

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

Services Offered

  • Service icon Panel Installation
  • Service icon Off-Grid Solar Systems
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance

Website: https://www.altestore.com/
Address: 330 Codman Hill Rd, Boxborough, MA 01719
Phone: 8778784060
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Solar On Earth

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

Services Offered

  • Service icon Community Solar Projects
  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System

Website: https://solaronearth.com/
Address: 35 Nagog Park #315, Acton, MA 01720
Phone: 8447652582
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Boston Solar

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

Services Offered

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

Website: https://www.bostonsolar.us/
Address: 12 Gill St #5650, Woburn, MA 01801
Phone: 6176485601
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Venture Solar

  • Pros icon Informative Resources
  • 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 Consultation
  • Service icon Grid-Tied Solar System

Website: https://venturesolar.com/
Address: 2 Kane Industrial Dr, Hudson, MA 01749
Phone: 8885229161
Outstanding Local Installer
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EcoWatch Rating

4.5/5

HB Energy Solutions

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

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance

Website: https://www.hbenergy.com/
Address: 132 Bridge St, Springfield, VT 05156
Phone: 8028852300

Methodology: How We Ranked the Best Solar Companies in Hillsborough

EcoWatch's solar experts analyzed each solar company in Hillsborough 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 Hillsborough


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 Hillsborough

For the majority of homeowners, the decision to invest in solar energy boils down to the cost.There are quite a few factors you should consider when trying to figure out how much it will cost and how much you can save, including:

  • The kind of solar panel system you can afford: This is dependent on how much you’re willing to invest upfront.
  • Incentives: Something that can save you money on your solar project is the solar investment tax credit (ITC), which is a tax credit that’s equal to a percentage of the project cost. You can also save a decent amount of money on your utility bills, which can give you an average of $19,000 of savings over 20 years.
  • Your current electricity bills: Solar panels can greatly lower, or totally get rid of, your utility bills. In Hillsborough, you can save an average of $1,407 a month.
  • How much sunlight your roof gets: If your roof doesn’t get a lot of direct sunlight, your solar panels won’t be able to generate as much energy, which will leave you with lower savings on power bills than a roof that gets plenty of sunlight.

So are solar panels worth it? Whether you hope to reduce your electric bills, carbon dioxide emissions or both, solar panels are a solid investment for many Hillsborough homeowners.

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Solar Incentives in Hillsborough

Although installing solar panels is typically a big investment, it can save you a lot of money in the long term because of smaller energy bills and government incentives.There are quite a few federal, state and local rebates and tax credits that can earn you a decent amount of money back after buying a solar panel system. For more information about incentives that apply to you, check out our article on solar incentives.

Environmental Impact of Switching to Solar in Hillsborough

If you’re thinking of adding solar panels to your home, one of the main reasons why may be to lower your carbon footprint.A question many homeowners might have in mind is how much can they really help save the environment by switching to solar power anyway? One thing that can severely shape your carbon footprint is how long your commute is and how much you drive altogether. If you install solar panels and drive an electric car, you can vastly decrease your carbon dioxide emissions by charging your car at home.In fact, if you adopt solar power, you could expect to reduce your carbon dioxide emissions by about 40 pounds each year. Since solar energy is abundant and generates electricity without a carbon footprint, installing solar panels is one easy step you can take to help preserve the environment.

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EcoWatch's Hillsborough, NH Solar Company Rankings FAQs

Which solar panel installer is the best in Hillsborough?

In Hillsborough, Sunup Solar is the best local solar company. Our team of experts rates it 5.00 stars, so it's a good choice if you're planning on installing solar panels on your house.

Are solar panels actually environmentally friendly?

Solar panels can be detrimental for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Solar panel manufacturing requires a lot of energy as well. The energy payback period is about 1 to 4 years.

How long does it take for solar to pay for itself?

The average payback period for solar panel installation is about 14.6 years, but the exact period varies depending on local electricity costs, incentives and net metering programs.

What is the best type of solar panel?

The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also more costly. 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, such as on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, the layout of your roof and how much energy generation you want.

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.