15 Best Solar Companies in Winchester, NH (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Winchester based on:
Customer review scores
Service area for Winchester, NH
Company policies and services offered
Accreditations and certifications
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Average Winchester homeowner saves $1,601/year with solar panels
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Best Solar Companies in Winchester
If you’re a homeowner looking to capitalize on the solar incentives in Winchester, it can be challenging to narrow down which installer to decide on. But, the hard work is worth it since switching to solar energy is often a great choice. Since energy bills are getting higher and higher each year, many homeowners are planning on making the switch to solar to save money on electricity for their homes.
In this article, we’ll review the top Winchester solar installers so you can make the best choice for your home’s sustainable energy needs.We recommend shopping around to get quite a few quotes and comparing them to see which is the best installer for your home. To get started with free quotes from vetted solar panel companies in Winchester, click the link below.
EcoWatch Rankings for Solar Companies in Winchester

Northeast Solar
Reliable Customer Support
Free Quotes
Clear Pricing Policy
Prompt Service Delivery
Informative Resources
Limited information available on website
Services Offered
Battery Storage
Consultation
Permit Assistance
Cleaning and Maintenance
Panel Installation
Financing Assistance
Solar Carports




Helios Solar Energy
Reliable Customer Support
Prompt Service Delivery
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Cleaning and Maintenance
Panel Installation
Financing Assistance
Consultation
Permit Assistance

Valley Solar
Prompt Service Delivery
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Tesla Powerwall
Financing Assistance
Consultation
Panel Installation
Battery Storage
Solar Carports
Cleaning and Maintenance
Off-Grid Solar Systems


Sundial Solar
Informative Resources
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Tesla Powerwall
Financing Assistance
Consultation
Battery Storage
Panel Installation
Permit Assistance

Granite State Solar
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Panel Installation
Financing Assistance

PV Squared Solar (Pioneer Valley Photovoltaics)
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Battery Storage
Permit Assistance
Financing Assistance
Panel Installation
Cleaning and Maintenance
Consultation

Insight Solar
Reliable Customer Support
Free Quotes
Clear Pricing Policy
Informative Resources
Limited information available on website
Services Offered
Financing Assistance
Consultation
Panel Installation

altE Store
Clear Pricing Policy
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Grid-Tied Solar System
Off-Grid Solar Systems
Cleaning and Maintenance
Panel Installation
Battery Storage

Solar On Earth
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Grid-Tied Solar System
Community Solar Projects


HB Energy Solutions
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Cleaning and Maintenance
Methodology: How We Ranked the Best Solar Companies in Winchester
EcoWatch's solar experts analyzed each solar company in Winchester 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 Winchester
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 Winchester
The cost of putting up a solar panel system has decreased greatly in the past few years, but it’s still a significant investment for most homeowners.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, such as:
- How much you spend on energy: The average household in Winchester pays around $1,400 a year on home energy use alone, so you could gain that much in savings.
- System size and type: Some models are more expensive than others, so the one you decide on can raise or lower your upfront cost. Plus, the more solar panels you need, the more it'll cost.
- Incentives: The federal solar investment tax credit, which everyone qualifies for, allows you to deduct 0 of the cost of your solar system installation from your federal taxes. Additionally, not including incentives, you can save about $19,000 over 20 years on your energy bills.
- Energy consumption: Installing solar panels may be an expensive investment for homes that don’t use a good amount of energy a month.
Solar is a profitable investment for most homeowners. You can generate your own power instead of paying for it from a utility company and take advantage of solar incentives, all while helping the environment.
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Solar Incentives in Winchester
There are many good reasons why you should switch to solar. One of them involves some government incentives you can take advantage of.There are a lot of federal, state and local rebates and tax credits that may earn you some money back after buying a solar panel system. You can learn about the incentives you can take advantage of in our article on solar incentives
Environmental Impact of Switching to Solar in Winchester
If you’re considering adding solar panels to your home, one of the main reasons why may be to lower your reliance on nonrenewable energy.But – how much exactly can you help the planet by going solar? If your home consumes lots of energy, you can have an even greater impact on the planet by switching to solar power.While making solar panels emits carbon dioxide, the panels make up for it by greatly decreasing the amount of CO2 you would have released if you still used nonrenewable energy. In Winchester, you can reduce your carbon footprint by 40 pounds a year with solar panels. If you want to do your part for the environment, you’ll likely get that there are many advantages to adopting solar power other than just saving money on electricity. You can also help preserve the environment, which some would argue is worth more.
EcoWatch's Winchester, NH Solar Company Rankings FAQs
Which solar power company is the best in Winchester?
In Winchester, Northeast Solar is the most reputable local solar company. Our team of experts rates it 5.00 stars, so it's a solid choice if you're looking to add solar panels to your home.
Are solar panels actually eco-friendly?
Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the manufacturing process. Chemicals can make solar panels difficult to dispose of safely once they’ve reached the end of their lifespan. Making solar panels requires a lot of energy as well. The energy payback period is about 1 to 4 years.
How long does it take to see a return on your investment after getting solar panels?
The average payback period for solar panel installation is about 14.8 years, but the exact period is influenced by local electricity costs, incentives and net metering programs.
What is the efficiency of solar panels?
Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating of about 15 to 25%. If your panels are more efficient, you'll need less of them to meet your home's energy needs.
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.