15 Best Solar Companies in Londonderry, NH (2024 Reviews)

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

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

Average Londonderry homeowner saves $1,720/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 2024

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 Londonderry

Looking for the top solar companies in Londonderry? Installing solar panels is an exciting venture that many homeowners find rewarding for their wallets, communities and the planet. Since the cost of energy is increasing each year, many homeowners are planning on switching to solar to save money on electricity for their homes.


If you’re planning on going solar, the first step to take is to find the best solar companies in Londonderry and compare quotes. The good news is we did the hard work and came up with a list of the best solar companies so you don’t have to.To help you find out if solar panels are worth it for your home, you can get a free, no-obligation quote from one of the best solar companies in Londonderry by clicking the button below.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

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

Best Technology

Tesla Energy

★★★★★
3.2
  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch Rankings for Solar Companies in Londonderry

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower by BlueSel Home Solar

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

Services Offered

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

Website: https://www.bluesel.com/
Address: 400 W Cummings Park #3425, Woburn, MA 01801
Phone: 7812818130
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Sunergy Solutions, LLC

  • 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://sunergysolutionsllc.com/
Address: 75 Gilcreast Rd STE 210, Londonderry, NH 03053
Phone: 8444276527
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Sunup Solar

  • 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 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
ecowatch badge icon

EcoWatch Rating

3.0/5

SAVKAT SOLAR

  • Pros icon Family-Operated Business
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

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

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

EcoWatch Rating

5.0/5

Helios Solar Energy

  • Pros icon Prompt Service Delivery
  • 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 Financing Assistance
  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance

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

3.0/5

NE Solar Pros LLC

  • 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
  • Service icon Battery Storage
  • Service icon Consultation

Website: http://www.nesolarllc.com/
Address: 60 Blossom St, Nashua, NH 03060
Phone: 6033183232
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Critical Mass Solar

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • 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
ecowatch badge icon

EcoWatch Rating

3.0/5

New England Clean Energy - New Hampshire Office

  • Pros icon Informative Resources
  • 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 Consultation
  • Service icon Panel Installation

Website: https://newenglandcleanenergy.com/contact/new-hampshire-contact/
Address: 264 S River Rd Suite 538, Bedford, NH 03110
Phone: 6034352508
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Porter Electrical Contracting

  • Pros icon Free Quotes
  • 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 Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://www.porter-electrical.com/
Address: 26 Cindy Dr, Hooksett, NH 03106
Phone: 6035207696
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

ReVision Energy

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon award_winning
  • 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 Financing Assistance
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Cleaning and Maintenance

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

EcoWatch Rating

4.9/5

Granite State Solar

  • Pros icon award_winning
  • 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
  • Service icon Battery Storage

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

EcoWatch Rating

4.1/5

Invaleon Technologies Corporation

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

Services Offered

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

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

EcoWatch Rating

4.9/5

Sundial Solar

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

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

EcoWatch Rating

4.7/5

Solar On Earth

  • Pros icon Prompt Service Delivery
  • Pros icon Informative Resources
  • 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 Grid-Tied Solar System
  • Service icon Panel Installation
  • Service icon Community Solar Projects

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

EcoWatch Rating

4.9/5

Future Energy Solar

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

Services Offered

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

Website: http://futureenergysolar.com/
Address: 21 Olympia Ave unit v, Woburn, MA 01801
Phone: 7819607005

Methodology: How We Ranked the Best Solar Companies in Londonderry

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


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 Londonderry

The cost of installing a solar panel system has dropped immensely over the past several years, but it’s still a substantial investment for most homeowners.Some important things that influence how much it will cost and how much you could save include:

  • The kind of solar panels you can buy: This depends on how much you’re willing to invest upfront.
  • Incentives: The federal solar investment tax credit, which can save you some money, lets you deduct 0 of the cost of installing your solar panel system from your federal taxes. Plus, not including incentives, you can save about $20,000 over 20 years on your energy bills.
  • Typical energy usage: The more energy your household uses on average and the higher your current energy bills are, the more money you could save by switching to solar.
  • How much sunlight your roof gets: This, plus your roof configuration, affects affect how much power your solar panels can generate.

As a result of the cost of solar panels being lower than before as well as several solar incentives, they are a cost-effective investment for most homeowners.

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Solar Incentives in Londonderry

In order to increase solar panel installation and usage, federal and local governments – and even some utility companies – offer incentives to help make solar more economical and accessible.These incentives usually consist of cash rebates, tax benefits and/or performance-based incentives. They can lower how much you end up spending on going solar by 0, upwards of 50% depending on where you live. Take a look at our article on solar incentives to learn what incentives you can benefit from.

Environmental Impact of Switching to Solar in Londonderry

Many want to do what they can to help the planet, which often is the prime reason for installing a solar system.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Londonderry, though. One thing that can dramatically shape your carbon footprint is how long your commute is and how much you drive altogether. If you install solar panels and have an electric car, you can significantly lower your carbon dioxide emissions by charging your car at home.Once you go solar, your carbon footprint can be lowered by about 40 pounds a year. If you want to do your part for the environment, you’ll likely get that there are many good things about adopting solar energy other than just saving money on electricity. You can also help preserve the environment, which some would argue is more valuable.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

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

Best Technology

Tesla Energy

★★★★★
3.2
  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's Londonderry, NH Solar Company Rankings FAQs

What is the best solar installation company in Londonderry?

The top local solar company in Londonderry is SunPower by BlueSel Home Solar, with a rating of 3.00 stars.

What is the negative environmental impact of solar panel manufacturing?

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

Is it worth installing solar panels on my home?

Solar panels need a significant upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a collection of factors like the cost of electricity near you and how much direct sunlight your roof gets.

How long do solar panels last?

On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger amount of energy production.

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.