15 Best Solar Companies in Williamstown, NJ (2023 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, NJ
  • Company policies and services offered
  • Accreditations and certifications

Average Williamstown homeowner saves $1,567/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated September 15, 2023

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 Williamstown

Looking for the best solar companies in Williamstown? Installing solar panels is an exciting project that many homeowners find rewarding for their wallets, communities and the planet. With high levels of average daily sunlight in Williamstown, the solar industry is doing fairly well. An overlooked driver of this has been national and statewide incentives that help with residential and commercial solar panel installation.

In this article, we'll review the top Williamstown solar installers so you can find the best one for your home's clean energy needs. To get free quotes from the leading solar companies in Williamstown, click the "get quote" 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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

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

EcoWatch Rankings for Solar Companies in Williamstown

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Public Service Solar, LLC

  • 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 Energy storage solutions
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Business installations

Website: https://www.publicservicesolar.com/
Address: 1631 S Olden Ave, Trenton, NJ 08610
Phone: 8882702884
Outstanding Local Installer
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EcoWatch Rating

4.5/5

VISION SOLAR

  • 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 Home installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Skilled repairs

Website: https://visionsolar.com/
Address: 100 Campbell Blvd, Exton, PA 19341
Phone: 8777776527
Outstanding Local Installer
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EcoWatch Rating

4.2/5

SunPower

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Expert panel installation

Website: http://us.sunpower.com/
Address: 300 American Metro Blvd #230, Hamilton Township, NJ 08619
Phone: 7147873800
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower Builders

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

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation

Website: http://www.sunpowerbuilders.com/
Address: 80 Pechins Mill Rd, Collegeville, PA 19426
Phone: 6104891105
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Glenn Wassmer ~ HD Energy Solutions

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

Services Offered

  • Service icon Expert panel installation
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Energy storage solutions

Website: https://youtube.com/channel/UC4o3dJ7vFQfNR8j9hzBAITQ
Address: 25 Hall St, Williamstown, NJ 08094
Phone: 2675497210
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Solar Guardians USA

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Professional reinstallation
  • Service icon Expert panel installation
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Skilled repairs
  • Service icon Home installations

Website: https://www.solarguardiansusa.com/
Address: 4171-B East Black Horse Pike, NJ-42, NJ-42, NJ 08012
Phone: 8563181703
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Energy Defenders

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation

Website: http://theenergydefenders.com/
Address: 601 White Horse Pike, Hammonton, NJ 08037
Phone: 6092707072
Outstanding Local Installer
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EcoWatch Rating

4.1/5

Ad Energy

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

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Energy storage solutions
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Business installations

Website: https://ad-energy.com/
Address: 423 Commerce Ln #4, West Berlin, NJ 08091
Phone: 8565222008
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Kaitanna Solar Installation Company

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

Services Offered

  • Service icon Energy storage solutions
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Business installations

Website: https://kaitannasolar.com/
Address: 34 N Main St, Mullica Hill, NJ 08062
Phone: 8562188354
Outstanding Local Installer
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EcoWatch Rating

4.8/5

ARS Solar Company - Solar 4 South Jersey

  • 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 Home installations
  • Service icon End-to-end services
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Skilled repairs
  • Service icon Business installations

Website: https://solar4southjersey.com/
Address: 82 E Browning Rd, Bellmawr, NJ 08031
Phone: 8569000669
Outstanding Local Installer
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EcoWatch Rating

3.0/5

EcoGen America

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

Services Offered

  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon End-to-end services
  • Service icon Integrated roofing
  • Service icon Tailored solutions

Website: https://ecogenamerica.com/residential/nj/gloucester-county/
Address: 591 Mantua Blvd #210, Sewell, NJ 08080
Phone: 8568782111
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Novitium Energy, A National Energy Partners Company

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Business installations

Website: http://www.novitiumenergy.com/
Address: 701 Cooper Rd, Voorhees Township, NJ 08043
Phone: 8562735761
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Soaring Solar

  • 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 Skilled repairs
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations

Website: http://soaringsolar.com/
Address: 2 Eves Dr #204, Marlton, NJ 08053
Phone: 8483082989
Outstanding Local Installer
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EcoWatch Rating

4.9/5

MACK Solar and Roofing

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

Services Offered

  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Skilled repairs
  • Service icon Professional reinstallation
  • Service icon Home installations
  • Service icon Expert panel installation

Website: http://macksolarandroofing.com/
Address: 521 Harrison Ave, Oaklyn, NJ 08107
Phone: 8566840653
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Rhythm Solar

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

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Integrated roofing

Website: https://www.rhythmsolar.com/
Address: 2000 Crawford Pl # 300, Mt Laurel Township, NJ 08054
Phone: 8567242611

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 New Jersey 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

When choosing a solar company, most homeowners or business owners worry about the costs the most. The cost of solar and the savings it generates vary depending on a few important factors such as:

  • Your power bills: This will affect how much money you might save. In Williamstown, the average resident can save about $910 a year on their electricity bills.
  • System size and type: Some models are more expensive than others, so the one you want to get can raise or lower your upfront cost. Plus, the more solar panels you need to buy, the more it'll cost.
  • Electricity consumption: The average home in Williamstown doesn't use much energy, and therefore may not see as many savings on their power bills.
  • Incentives: The federal solar investment tax credit currently allows you to reduce your taxes by 30% of the project cost. Your state and city may also have various incentives that you can use. Plus, you can save about $19,000 over 20 years on your utility bills, before factoring in incentives.

Solar is a worthwhile investment for most homeowners. You can generate your own power instead of paying for it from a utility company and take advantage of solar tax credits and rebates, all while helping preserve the planet.

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Solar Incentives in Williamstown

One of the good things about installing a solar panel system is receiving government incentives. There are a lot of federal, state and local rebates and tax credits that let you earn anywhere from 30% to 50% of your money back after buying a solar panel system. Take a look at our article on solar incentives to find out what incentives are available to you.

Environmental Impact of Switching to Solar in Williamstown

Installing solar panels is a profound way to do what you can for a more eco-friendly future. But how much can switching to solar actually help the environment? The more energy you use, the the more the environment will benefit when you switch to solar since you won't need to burn as many fossil fuels. Since solar panels don't release CO2 emissions into the atmosphere when producing electricity, they're a good trade for traditional energy sources. In fact, you could lower your carbon dioxide emissions by about 60 pounds each year. For homeowners who are worried about the environment, the upfront cost of solar is a small price to pay for reducing your carbon footprint.

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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

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

EcoWatch's Williamstown, NJ Solar Company Rankings FAQs

What is the top solar company in Williamstown?

The best local solar company in Williamstown is Arsenal Solar, with a rating of 4.01 stars.

Are solar panels really good for the environment?

Making solar panels needs to use chemicals and produces toxic waste that can be dangerous for the environment, which is the main drawback of solar panels.

Are solar panels worth it?

Solar panels call for a considerable upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a collection of factors like how much you pay for electricity and the amount of direct sunlight your roof gets.

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 so in the winter when the demand is less. With fewer homeowners switching to solar, you could potentially see faster 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.

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.