15 Best Solar Companies in Waltham, MA (2024 Reviews)

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

  • Customer review scores
  • Service area for Waltham, MA
  • Company policies and services offered
  • Accreditations and certifications

Average Waltham homeowner saves $1,918/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 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 Waltham

If you’re trying to find the best solar companies in Waltham, going through hundreds of options can be challenging, but it can pay off since switching to solar energy can offer so many good perks. Solar panels aren't just good for the planet — your finances will be better off too. With solar power, you can save an average of $23,000 over 20 years, and this doesn't even include incentives.


If you want to take advantage of the many benefits of solar, we’re here to help you narrow down your options to find the Waltham solar installer that’s right for you.Continue reading to see our picks for the top solar companies in the city, or get connected to a vetted solar company near you right away 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 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 Waltham

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower by BlueSel Home Solar

  • 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 Residential Panels
  • Service icon Financing Assistance
  • Service icon Commercial Panels
  • Service icon Solar Panel Upgrades
  • Service icon 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

3.0/5

Sunrun Fusion New England

  • 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 Residential Panels
  • Service icon Solar Panel Upgrades

Website: http://www.sunrun.com/
Address: 420 S Washington St Suite 6, North Attleborough, MA 02760
Phone: 5083728582
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Team Sunshine Construction, LLC.

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

Services Offered

  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Financing Assistance

Website: http://www.teamsunshine.solar/
Address: 24 Spice St, Boston, MA 02129
Phone: 6175808649
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Kind Heart Solar Solutions

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

Services Offered

  • Service icon Maintenance
  • Service icon Consultation
  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Skilled Repairs
  • Service icon Off-Grid Solar Systems

Website: https://www.solar-boston.co/
Address: 59 Bowker St, Boston, MA 02114
Phone: 5084665978
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Great Sky 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 Residential Panels
  • Service icon Consultation

Website: http://greatskysolar.com/
Address: 29 Mill St, Arlington, MA 02476
Phone: 8889660726
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Future Energy Solar

  • Pros icon Prompt Service Delivery
  • 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 Battery Storage
  • Service icon Residential Panels
  • Service icon Full-Service
  • Service icon Financing Assistance

Website: http://futureenergysolar.com/
Address: 21 Olympia Ave unit v, Woburn, MA 01801
Phone: 7819607005
Outstanding Local Installer
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EcoWatch Rating

4.8/5

EnergySage

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

Services Offered

  • Service icon Residential Panels
  • Service icon Battery Storage
  • Service icon Community Solar Projects
  • Service icon Tesla Powerwall
  • Service icon Financing Assistance

Website: https://www.energysage.com/
Address: 3 Center Plz, Boston, MA 02108
Phone: 8888384638
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Boston Solar

  • 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 Consultation
  • Service icon Residential Panels
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Commercial Panels

Website: https://www.bostonsolar.us/
Address: 12 Gill St #5650, Woburn, MA 01801
Phone: 6176485601
Outstanding Local Installer
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EcoWatch Rating

3.0/5

GOSO Technologies

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

Services Offered

  • Service icon Residential Panels
  • Service icon Commercial Panels

Website: http://goso.tech/
Address: 75 State St Suite 100, Boston, MA 02109
Phone: 8334676832
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Brightway Energy

  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Financing Assistance

Website: https://brightwayenergy.com/
Address: 165 Middlesex Ave, Somerville, MA 02145
Phone: 6179066655
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Solar On Earth

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

Services Offered

  • Service icon Maintenance
  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Community Solar Projects
  • Service icon Skilled Repairs

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

EcoWatch Rating

3.0/5

NuWatt Energy

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

Services Offered

  • Service icon Solar Panel Upgrades
  • Service icon Residential Panels
  • Service icon Financing Assistance

Website: https://www.nuwattenergy.com/
Address: 400 Tradecenter Dr Ste 5900, Woburn, MA 01801
Phone: 8777726357
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Sunbug Solar

  • 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 Residential Panels
  • Service icon Maintenance
  • Service icon Commercial Panels
  • Service icon Full-Service

Website: http://sunbugsolar.com/
Address: 2A Draper St, Woburn, MA 01801
Phone: 6175003938
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.1/5

New England Clean Energy

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

Services Offered

  • Service icon Battery Storage
  • Service icon Residential Panels
  • Service icon Consultation
  • Service icon Commercial Panels
  • Service icon Maintenance

Website: https://www.newenglandcleanenergy.com/
Address: 577 Main St Suite 430, Hudson, MA 01749
Phone: 9785676527
Outstanding Local Installer
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EcoWatch Rating

3.0/5

617 Energy

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

Services Offered

  • Service icon Commercial Panels
  • Service icon Community Solar Projects
  • Service icon Battery Storage
  • Service icon Residential Panels

Website: http://www.617energy.com/
Address: 24 Spice St, Boston, MA 02129
Phone: 8776176177

Methodology: How We Ranked the Best Solar Companies in Waltham

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


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 Waltham

Even though solar panels can save you money on energy bills over time, it’s necessary to take into consideration the upfront costs.Some key things that impact the upfront cost and potential savings over time include:

  • The type and model of solar panels you want to get: Higher-efficiency panels have higher prices, so that will determine your budget for your solar project.
  • Average daily sunlight: Since Waltham gets a decent amount of average daily sunlight, your solar panels can generally generate enough energy to power your whole home, which influences how much your electricity bills will be.
  • average energy usage: The more energy your household consumes on average and the steeper your current electricity bills are, the more benefits you’ll see from going solar.
  • Incentives: The federal solar investment tax credit currently lets you lower your taxes by 0 of the project cost. Your state and even local utility companies may also have various incentives that you can take advantage of. Plus, you can save about $23,000 over 20 years on your utility bills, not including incentives.

There are lots of great benefits of solar despite the initial cost of installation. It can help the Earth and your finances. In addition, it can increase the value of your home, leading to even more benefits if you choose to sell your home later.

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Solar Incentives in Waltham

Although solar power is typically a big investment, it can save you a substantial amount of money over time because of lower energy bills and government incentives.There are a lot of federal, state and local rebates and tax credits that earn a decent amount of money back after installing a qualifying system. Check out our article on solar incentives to find out what incentives are available to you.

Environmental Impact of Switching to Solar in Waltham

Installing solar panels can have a beneficial effect on the environment.But how much can using solar energy instead of traditional energy actually help the environment? In a place like Waltham where commute times can be pretty long, installing solar panels can help offset some of your carbon dioxide emissions from being on the road a lot.After you go solar, your carbon emissions can be lowered by about 40 pounds every year. For homeowners who are concerned about the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.

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 Waltham, MA Solar Company Rankings FAQs

What is the best solar panel installer in Waltham?

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

Are solar panels really bad for the environment?

Manufacturing solar panels requires chemicals and produces toxic waste that can be harmful for the environment, which is the main drawback of solar panels.

How long does it take to see a return on your investment after buying solar panels?

The average payback period for solar panel installation is about 11.9 years, but the exact period varies depending on the cost of electricity where you are, incentives and net metering programs.

What is solar panel capacity and how much do I need for my house?

Solar panel capacity is rated depending on how many watts of power they produce under standard testing conditions. Since each panel can typically produce about 250 to 400 watts per hour, the average house will need 20 to 35 panels.

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.