15 Best Solar Companies in Frederick, MD (2023 Reviews)

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

  • Customer review scores
  • Service area for Frederick, MD
  • Company policies and services offered
  • Accreditations and certifications

Average Frederick homeowner saves $922/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 Frederick

Looking for the best solar companies in Frederick? Installing a solar panel system is an exciting venture that many homeowners find rewarding for their wallets, communities and the planet. Plus, eco-conscious government support resulted in surging numbers of solar companies, setting the groundwork for a sustainable and lucrative future in the state.

There are so many installers to choose from, but in this article, we'll help you pin down your options by recommending some of the best solar companies in Frederick. To receive free quotes from the best solar companies in Frederick, you can click "get quote" 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 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

Best Social Impact

Palmetto Solar

★★★★★
4.0

  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch Rankings for Solar Companies in Frederick

Best Local Installer
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EcoWatch Rating

5.0/5

Paradise Energy Solutions

  • 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 Home installations
  • Service icon Professional reinstallation
  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Expert panel installation
  • Service icon End-to-end services

Website: https://www.paradisesolarenergy.com/locations/central-maryland/
Address: 10312 Governor Lane Boulevard suite 5003, Williamsport, MD 21795
Phone: 3019173342
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Nova Solar, Inc.

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

Website: https://novasolar.com/
Address: 3305 Dye Dr, Falls Church, VA 22042
Phone: 7036798607
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Old Dominion Solar Panels

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

Services Offered

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

Website: http://virginia-solar.com/
Address: 1482 Ingleside Ave, McLean, VA 22101
Phone: 5719466975
Outstanding Local Installer
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EcoWatch Rating

4.8/5

FREDERICK SOLAR CO

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

Website: http://www.solar-frederick.com/
Address: 915 Toll House Ave, Frederick, MD 21701
Phone: 2403012656
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sustainable Energy Systems LLC

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

Services Offered

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

Website: http://sustainableenergysystems.net/
Address: 4509 Metropolitan Ct unit h, Frederick, MD 21704
Phone: 3017884003
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Glim Solar

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

Website: http://www.glimsolar.com/
Address: 18310 Montgomery Village Ave #300, Gaithersburg, MD 20879
Phone: 7036882380
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Virginia Renewables

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

Website: https://www.virginiarenewables.com/
Address: 880 Harrison St SE, Leesburg, VA 20175
Phone: 7037725970
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Solar Solutions For All LLC

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

Services Offered

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

Website: http://www.solarsolutionsforall.com/
Address: 227 Town Branch Terrace SW, Leesburg, VA 20175
Phone: 5712529717
Outstanding Local Installer
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EcoWatch Rating

4.8/5

General Solar Company

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

Website: http://www.generalsolar.net/
Address: 16021 Industrial Dr #13, Gaithersburg, MD 20877
Phone: 3012319500
Outstanding Local Installer
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EcoWatch Rating

4.2/5

Solar Holler

  • Pros icon Free Quotes
  • 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 End-to-end services
  • Service icon Energy storage solutions
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Business installations

Website: http://www.solarholler.com/
Address: 132 W German St, Shepherdstown, WV 25443
Phone: 3043629615
Outstanding Local Installer
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EcoWatch Rating

4.7/5

American Solar Enterprises LLC

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

Website: http://www.thesolardr.com/
Address: 46400 Benedict Dr STE 203, Sterling, VA 20164
Phone: 7035891136
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Free State Solar Co

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

Website: http://www.solar-maryland.com/
Address: 11140 Rockville Pike, Rockville, MD 20852
Phone: 2408473032
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Milestone Solar Consultants LLC

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

Services Offered

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

Website: http://www.milestonesolar.com/
Address: 3291 Grade Rd, Falling Waters, WV 25419
Phone: 8666884274
Outstanding Local Installer
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EcoWatch Rating

4.5/5

Prospect Solar LLC

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

Website: http://www.prospectsolar.com/
Address: 22570 Markey Ct Suite #102, Sterling, VA 20166
Phone: 7034442447
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Green Zone Solar Solutions

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

Website: https://www.greenzone-solar.com/
Address: 2343 Dulles Station Blvd, Herndon, VA 20171
Phone: 5515562827

Methodology: How We Ranked the Best Solar Companies in Frederick

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


Below are some the criteria we examined specifically for Maryland 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 Frederick

While solar panels can save you money on electricity bills over time, it's important to take into consideration the upfront costs. The installation cost is just one important factor you should keep in mind when looking into installing solar panels. How much it'll cost and how much you can save depend on things including:

  • System size and type: Some models are more pricy than others, so the one you choose can raise or lower your initial investment. Plus, the more solar panels you need to buy, the more it'll cost.
  • Your power bills: This will impact how much you can save. In Frederick, the average resident can save about $650 a year on their electricity bills.
  • Electricity consumption: The average home in Frederick uses a decent amount of, and as a result may save on their energy bills.
  • Incentives: Those who purchase and install a solar energy system this year can save 30% of their overall solar costs by taking advantage of the federal solar investment tax credit. You can also save about $11,000 on your energy bills over 20 years excluding incentives.

Solar is a rewarding investment for most homeowners. You can produce your own electricity instead of paying for it from the grid and benefit from solar incentives, all while helping the planet.

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Solar Incentives in Frederick

Since solar power is more sustainable than fossil fuels, there are quite a few government incentives in place to encourage its adoption. Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which lets you claim 30% of how much you paid for your solar installation when you file taxes, lowering the amount of taxes you owe that year. Plus, there may be some state and city incentives that can save you some extra money too. Our article on solar incentives goes over more in-depth information on the incentives you can take advantage of in Frederick.

Environmental Impact of Switching to Solar in Frederick

Going solar can have a positive impact on the environment. But how much can switching to solar actually help the environment? Everyone can help the planet by switching to solar energy, but homes that consume a lot of energy will have a greater impact. Once you go solar, your carbon emissions can be reduced by about 90 pounds every year. For homeowners who are worried 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 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

Best Social Impact

Palmetto Solar

★★★★★
4.0

  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's Frederick, MD Solar Company Rankings FAQs

Which solar power company is the best near me?

In Frederick, Ipsun Solar is the most reputable local solar company. Our team of experts rates it 4.01 stars, so it's a good choice if you're planning on installing solar panels on your home.

What are the best and worst things about solar power?

The biggest advantages of solar power are that it can lower or, in some cases, 100% cut your electricity bills, raise the value of your home and bring down your carbon footprint. The biggest disadvantages are that solar panels can be expensive to install, you may not see as many savings if you don't use a lot of electricity and whether you can install solar panels depends on your roof configuration.

Are solar panels worth it?

Solar panels call for a considerable upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a range of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.

What is the best type of solar panel?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. As for efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by your roof configuration, how much you're willing to spend and how much efficiency you're looking for.

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.