15 Best Solar Companies in Williamstown, MA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Williamstown based on:
Customer review scores- Service area for Williamstown, MA
- Company policies and services offered
- Accreditations and certifications
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Average Williamstown homeowner saves $1,766/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Williamstown
If you’re looking for the best solar companies in Williamstown, going through so many options can be overwhelming, but it can pay off since adopting solar energy can offer so many good perks. Plus, proactive government support gave rise to surging numbers of solar companies, setting the ground for a sustainable and lucrative future in the state.
As you start your search for the best solar companies in Williamstown, you’ll notice that there are a lot of providers to choose between. So, we’ve organized a curated list of the top solar companies in the area.We suggest shopping around to get quite a few quotes and comparing them to find the best installer for your home. To receive free quotes from trusted solar companies in Williamstown, click the link below.
EcoWatch Rankings for Solar Companies in Williamstown
New England Solar + Green
Free Quotes
Limited information available on website
Services Offered
Cleaning and Maintenance- Financing Assistance
- Battery Storage
- Panel Installation
- Consultation
Northeast Solar
- Reliable Customer Support
- Informative Resources
- Prompt Service Delivery
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Financing Assistance
- Permit Assistance
- Solar Carports
- Cleaning and Maintenance
- Consultation
- Panel Installation
Valley Solar
- Clear Pricing Policy
- Free Quotes
- Prompt Service Delivery
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Off-Grid Solar Systems
- Consultation
- Tesla Powerwall
- Financing Assistance
- Cleaning and Maintenance
- Solar Carports
PV Squared Solar (Pioneer Valley Photovoltaics)
- Informative Resources
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Consultation
- Financing Assistance
- Cleaning and Maintenance
- Permit Assistance
Insight Solar
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Consultation
Kasselman Solar
- Free Quotes
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Grid-Tied Solar System
- Battery Storage
AEC Solar
- Reliable Customer Support
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Solar Carports
- Panel Installation
- Consultation
- Tesla Powerwall
- Battery Storage
PosiGen
- Reliable Customer Support
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Consultation
- Battery Storage
- Panel Installation
- Permit Assistance
HB Energy Solutions
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Panel Installation
Seed Solar, Electric and Engineering
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
- Cleaning and Maintenance
Beyond Green Construction
- Informative Resources
- Family-Operated Business
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
High Peaks Solar
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Consultation
- Battery Storage
- Solar Carports
- Panel Installation
Sunbug Solar
- Reliable Customer Support
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Cleaning and Maintenance
Greenfield Solar
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Battery Storage
- Panel Installation
- Permit Assistance
- Financing Assistance
Grenergy Solar Store, LLC
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Reliable Customer Support
- Family-Operated Business
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Cleaning and Maintenance
Methodology: How We Ranked the Best Solar Companies in Williamstown
EcoWatch's solar experts analyzed each solar company in Williamstown 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 Williamstown
Below are some the criteria we examined specifically for Massachusetts 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 Williamstown
For many homeowners, whether or not to invest in solar panels comes down to the cost.The cost and possible savings vary depending on some key factors such as:
- The type of solar panels you have the money for: This is dependent on how much you’re willing to invest upfront.
- How much power your household needs: If your home needs to use a lot of energy, you'll reap more rewards from switching to solar.
- 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 money on your energy bills, which can generate an average of $21,000 of savings over 20 years.
- Your current electricity bills: Solar panels can greatly lower, or totally eliminate, your utility bills. In Williamstown, you can save an average of $1,723 a month.
So is buying solar panels worth it? Whether you’re trying to lower your electricity costs, carbon emissions or both, solar panels are a good investment for many Williamstown homeowners.
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Solar Incentives in Williamstown
Although installing solar panels is typically a big investment, it can save you much money over time due to smaller utility bills and government incentives.On top of the federal tax credit incentive, there are also some local programs, which in most cases, stack with the federal incentive, so you can save even more. For detailed information about incentives that apply to you, see our article on solar incentives.
Environmental Impact of Switching to Solar in Williamstown
There are a few primary reasons why homeowners are interested in solar energy: to help their wallet and the environment.But how much can installing solar panels actually help the environment? In a city like Williamstown where energy use is somewhat high, going solar is a fantastic plan for homeowners who are eco-conscious.Although making solar panels releases carbon dioxide emissions, the panels make up for it by greatly lowering the amount of CO2 you would have released if you still used nonrenewable energy. In Williamstown, you can reduce your carbon footprint by 40 pounds a year with solar panels. As you can see, investing in solar has so many other benefits outside of saving money. One of the primary ones is that you can help save the planet too.
EcoWatch's Williamstown, MA Solar Company Rankings FAQs
What is the most reputable solar installation company in Williamstown?
In Williamstown, New England Solar + Green is the top local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're planning to add solar panels to your roof.
What is the negative environmental impact of solar panels?
Manufacturing solar panels needs to use chemicals and produces toxic waste that can be bad for the environment, which is the main drawback of solar panels.
How long does it take for solar to pay for itself?
Solar panels typically pay for themselves in about 12.9 years, but your solar payback period will depend on your utility costs. The more your typical power bill, the faster your solar panel system will pay for itself.
When is the best time of year to install solar panels?
You can install solar panels whenever it's convenient for you, but consider doing it in the winter when there's less demand. With fewer homeowners switching to solar, you could potentially see quicker installation times and more savings.
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.