15 Best Solar Companies in Waltham, MA (2023 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Waltham based on:
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Customer review scores
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Service area for Waltham, MA
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Company policies and services offered
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Accreditations and certifications
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Average Waltham homeowner saves $1,918/year with solar panels
Updated May 04, 2023
Why you can trust EcoWatch
Best Solar Companies in Waltham
Looking for energy freedom in Waltham? Installing solar panels can be a rewarding investment since you can take advantage of lots of perks when you go solar. Due to its moderate amount of average daily sunlight, Waltham has a good amount of solar growth, so a lot of the best solar companies in the country have opened up there to help residents embrace renewable energy.
To help you sort through the huge variety of Waltham solar installers, we've narrowed down a list of the top ones. We recommend shopping around to get quite a few quotes and comparing them to see which is the best installer for your home. To receive free, no-obligation quotes from the top solar panel companies in Waltham, click the link below.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
EcoWatch Rankings for Solar Companies in Waltham

SunPower
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Most efficient panels on the market
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National coverage
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Cradle to Cradle sustainability certification
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Great warranty coverage
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Expensive
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Customer service varies by local dealer
Services Offered
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Solar Panels
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Solar Batteries
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EV Chargers
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System Monitoring

Momentum Solar
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Great warranty coverage
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Representatives are experts on local policies
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Concierge service ensures steady communication
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Slightly limited service offerings
Services Offered
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Solar Panels
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Solar Batteries

ReVision Energy
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Prompt Service Delivery
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Free Quotes
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Clear Pricing Policy
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Outstanding Customer Support
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Informative Resources
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Recognized Excellence
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Limited information available on website
Services Offered
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Skilled repairs
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Tailored solutions
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Business installations
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Expert panel installation
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Energy storage solutions
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Home installations
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Integrated roofing
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End-to-end services

New England Clean Energy
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Prompt Service Delivery
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Free Quotes
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Clear Pricing Policy
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Outstanding Customer Support
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Informative Resources
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Recognized Excellence
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Expert panel installation
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Energy storage solutions
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Home installations
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Integrated roofing
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End-to-end services

Sunrun
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Expansive service area
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Many financing options
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Some reported issues with customer service
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Some reported issues with door-to-door sales
Services Offered
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Solar Panels
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Solar Batteries
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EV Chargers
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Energy-Efficiency Upgrades

Palmetto Solar
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Expansive service area
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Makes charitable contributions
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Certified B Corp
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No leases or PPAs
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Quality of installation may vary by location
Services Offered
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Solar Panels
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Solar Batteries
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Energy-Efficiency Upgrades
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Maintenance & Repairs

Trinity Solar
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Many financing options
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Family-owned and -operated
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Makes charitable contributions
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Limited service area
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Relatively short workmanship warranty
Services Offered
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Solar Panels
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Solar Batteries
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Energy-Efficiency Upgrades

Tesla Energy
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Price-match guarantee
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Sleek, efficient, and durable solar panels
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Best solar battery on the market
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Some reported issues with customer service
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Customer service varies by local dealer
Services Offered
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Solar Panels
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Solar Batteries
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EV Chargers
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Solar Roof Shingles
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System Monitoring

ECA SOLAR
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Expert panel installation
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Energy storage solutions
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Home installations
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Integrated roofing

SolaRev
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Expert panel installation
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Home installations
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Integrated roofing

Culture Energy
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Skilled repairs
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Tailored solutions
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Business installations
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Expert panel installation
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Energy storage solutions
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Home installations
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Integrated roofing

Aten Concepts
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Expert panel installation
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Home installations
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Integrated roofing

Renewable energy EPC
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Expert panel installation
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Energy storage solutions
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Home installations

NEC Solar
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Free Quotes
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Clear Pricing Policy
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Expert panel installation
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Energy storage solutions
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Home installations
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Integrated roofing

Renewable Energy Massachusetts LLC
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Outstanding Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Integrated roofing
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Home installations
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
We understand that for most homeowners, the decision to invest in solar hinges on installation costs. There are several factors you should take into consideration when trying to determine the overall cost and how much you can save, including:
- Electricity consumption: The average home in Waltham doesn't use much energy, and so may not see as many savings on their power bills.
- The type of solar panels you're planning on getting: Some have higher prices, so that will shape your budget for your solar project.
- Incentives: The federal solar investment tax credit currently lets you decrease your taxes by 30% of the project cost. Your state and even local utility companies may also have incentives and rebates that you can take advantage of. In addition, you can save about $23,000 over 20 years on your utility bills, not including incentives.
- Your household's power bills: Due to fairly high monthly power bills in Waltham, you could save about $1,100 a year with solar.
There are lots of good benefits of solar in spite of the initial cost of installation. It can help the Earth and your bank account. Plus, it can raise the value of your home, giving you even more benefits if you want to sell your home later.
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If you're wondering how much you could impact the environment if you switch to solar, you can use the calculator below. You can also view our solar panel cost guide for Waltham, MA.
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Solar Incentives in Waltham
Switching to solar power has a lot of wonderful benefits. Not only can it help protect the environment, but you can also save some money on your installation with various government incentives. When you install solar panels on your house, you become eligible to claim the federal tax credit, or ITC. This credit currently lets you lower your tax bill by 30% of the cost of your solar panels. In addition, there are often some local incentives that you can benefit from to further save. In our article on solar incentives, you can find out about the incentives you qualify for in Waltham.
Environmental Impact of Switching to Solar in Waltham
An important reason so many people are considering switching to solar power is to help bring down their environmental impact. Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Waltham, though. No matter where you are, you can help protect the environment by switching to solar energy, but homes that consume more energy will have a bigger impact. When you go solar, your carbon footprint can be lowered by about 40 pounds every year. Since solar power is plentiful and makes electricity without CO2 emissions, installing solar panels is one easy step you can take to help preserve the environment.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
EcoWatch's Waltham, MA Solar Company Rankings FAQs
What is the best solar panel installer in Waltham?
In Waltham, United Better Homes 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 on installing solar panels on your roof.
What are the advantages and disadvantages of solar power?
A few of the biggest pros are that it lowers your electricity bills, it's environmentally friendly, and it can provide a good return on your investment (ROI). The most notable cons are that solar panels don't produce electricity at night, the startup costs are high and solar panels can look clunky on your roof.
Are solar panels worth it?
Solar panels can be a good investment for a majority of homeowners, but truthfully, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your power bills are already reasonably low, solar panels might not be for you.
What is solar panel capacity and how much do I need for my house?
Solar panel capacity is rated depending on how much power they generate under standard testing conditions. Since each panel can usually produce about 250 to 400 watts per hour, the average home 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.