15 Best Solar Companies in Londonderry, NH (2025 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
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Average Londonderry homeowner saves $1,720/year with solar panels
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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.
EcoWatch Rankings for Solar Companies in Londonderry
Sunergy Solutions, LLC
Clear Pricing Policy- Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance- Panel Installation
Sunup Solar
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Skilled Repairs
- Panel Installation
- Cleaning and Maintenance
- Battery Storage
Helios Solar Energy
- Prompt Service Delivery
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Permit Assistance
- Panel Installation
- Financing Assistance
- Consultation
- Cleaning and Maintenance
ReVision Energy
- Informative Resources
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Community Solar Projects
- Consultation
- Battery Storage
- Panel Installation
- Cleaning and Maintenance
Brightway Energy
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
- Financing Assistance
Critical Mass Solar
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
Granite State Solar
- Informative Resources
- Reliable Customer Support
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Financing Assistance
- Panel Installation
Sundial Solar
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Financing Assistance
- Tesla Powerwall
- Battery Storage
- Consultation
- Permit Assistance
- Panel Installation
Future Energy Solar
- Informative Resources
- Free Quotes
- Prompt Service Delivery
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Permit Assistance
- Financing Assistance
Great Sky Solar
- Informative Resources
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
altE Store
- Informative Resources
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Battery Storage
- Grid-Tied Solar System
- Off-Grid Solar Systems
- Panel Installation
EnergySage
- Informative Resources
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
- Financing Assistance
- Community Solar Projects
- Tesla Powerwall
Solar On Earth
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Grid-Tied Solar System
- Community Solar Projects
- Panel Installation
Boston Solar
- Free Quotes
- Prompt Service Delivery
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
- Financing Assistance
- Battery Storage
Team Sunshine Construction, LLC.
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Panel Installation
- Permit Assistance
- Financing Assistance
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.
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 Sunergy Solutions, LLC, with a rating of 5.00 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.