15 Best Solar Companies in Guilford, CT (2024 Reviews)

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

  • Customer review scores
  • Service area for Guilford, CT
  • Company policies and services offered
  • Accreditations and certifications

Average Guilford homeowner saves $2,146/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 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 Guilford

When choosing between the best solar panel installers, Guilford homeowners have more options to choose from than ever before, which can be mind-boggling, but we’re here to make switching to solar energy that much easier. Thanks to government support encouraging a growing clean energy market, homeowners in Guilford have access to some of the best solar installers in the country.


In this article, we’ll help you narrow down the top options in your area.We suggest shopping around for several quotes and comparing them to find the best installer for your home. To receive free quotes from the best solar companies in Guilford, click the link below.

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

Solar Veteran

Trinity Solar

★★★★★
4.0
  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

EcoWatch Rankings for Solar Companies in Guilford

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower

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

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation

Website: http://us.sunpower.com/
Address: 400 Executive Blvd Suite 137, Elmsford, NY 10523
Phone: 8007867693
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Ion Solar Pros

  • 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 Consultation
  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://www.ionsolarpros.com/
Address: 751 Straits Turnpike Suite 2000, Middlebury, CT 06762
Phone: 8605445362
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Green Power Energy

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

Services Offered

  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon Permit Assistance
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Battery Storage

Website: http://www.greenpowerenergy.com/
Address: 42 Ozick Dr Suite 3, Durham, CT 06422
Phone: 8669835793
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Aegis Solar Energy

  • 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 Cleaning and Maintenance
  • Service icon Permit Assistance
  • Service icon Panel Installation

Website: http://www.aegis-solar.com/
Address: 81 School Ground Rd, Branford, CT 06405
Phone: 2032081856
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Synergy Smart Homes - Connecticut Solar & Elite SunPower Dealer

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

Services Offered

  • Service icon Tesla Powerwall
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Skilled Repairs
  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: https://www.solarinstallationcontractor.com/
Address: 20 Tuttle Pl Suite 7, Middletown, CT 06457
Phone: 8603415001
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Tesla Solar Branford

  • 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 Panel Installation

Website: https://business.google.com/website/tesla-solar-branford
Address: 351 Main St, Branford, CT 06405
Phone: 4752789053
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Shoreline Solar

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

Services Offered

  • Service icon System Decommissioning
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation

Website: http://www.shorelinesolar.com/
Address: 4133 Whitney Ave Suite 2G, Hamden, CT 06518
Phone: 2032088148
Outstanding Local Installer
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EcoWatch Rating

4.3/5

EcoSmart Home Services

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

Services Offered

  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Skilled Repairs

Website: https://www.ecosmartct.com/
Address: 105A Clark Dr, East Berlin, CT 06023
Phone: 8608286626
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

Elite Energy Consulting

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

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: https://www.eliteenergyconsulting.com/
Address: 28 Belamose Ave, Rocky Hill, CT 06067
Phone: 4759773358
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Everlast Energy

  • 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 Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://everlastenergyct.com/
Address: 1344 Silas Deane Hwy Suite 515, Rocky Hill, CT 06067
Phone: 8603623129
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Savkat Solar

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

Services Offered

  • Service icon Grid-Tied Solar System
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance

Website: https://savkat.com/
Address: 71 Dolphin Rd, Bristol, CT 06010
Phone: 8608314141
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

Helio Energy Solutions

  • 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 Battery Storage
  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: https://www.gohelioenergy.com/
Address: 4 Research Dr Suite 402, Shelton, CT 06484
Phone: 8888684562
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Element Energy Systems (E2SYS)

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Solar Carports
  • Service icon Cleaning and Maintenance
  • Service icon Consultation

Website: https://www.e2sys.com/
Address: 7470 Sound Ave, Mattituck, NY 11952
Phone: 6317797993
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.6/5

CT Solar Solutions / SunPower

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

Services Offered

  • Service icon Panel Installation

Website: http://www.ctsolarsolutions.com/
Address: 22 Pennsylvania Ave, Niantic, CT 06357
Phone: 8609643035
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Waldo Renewable Electric, 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 Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.waldorenewable.com/
Address: 6 Littlefield Dr, Old Lyme, CT 06371
Phone: 2034949266

Methodology: How We Ranked the Best Solar Companies in Guilford

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


Below are some the criteria we examined specifically for Connecticut 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 Guilford

When deciding on 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 some important factors such as:

  • Electricity consumption: The average home in Guilford doesn’t use much energy, and consequently 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 0 of the project cost. Your state and even local utility companies may also have incentives and rebates that you can use. Plus, you can save about $25,000 over 20 years on your utility bills, not including incentives.
  • Your household's power bills: Because of fairly high monthly energy bills in Guilford, you could save about $1,800 a year with solar.
  • System size and type: Some models are more expensive than others, so the one you want can raise or lower your upfront cost. Plus, the more solar panels you need, the more it'll cost.

Solar is a worthwhile investment for most homeowners. You can generate your own energy instead of paying for it from the grid and take advantage of solar incentives and rebates, all while helping preserve the planet.

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Solar Incentives in Guilford

Because solar power is better for the environment than traditional energy sources, there are various government incentives available to encourage its adoption.Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which will let you claim 0 of your project costs on your tax return, reducing the amount of taxes you owe that year. Plus, there may be some state and city incentives you can benefit from too. In our article on solar incentives, you can see the incentives you qualify for in Guilford.

Environmental Impact of Switching to Solar in Guilford

If you want to add solar panels to your home, one of the principal reasons why may be to lower your carbon footprint.But how much can using solar energy instead of traditional energy actually help the environment? If your household consumes a lot of energy, you can have an even greater impact on the planet by switching to solar energy.In Guilford, the average household can lower their carbon footprint by 40 pounds a year once they go solar. As you can see, trading traditional energy for solar has so many other perks apart from saving money. One of the major ones is that you can help save the Earth too.

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

Solar Veteran

Trinity Solar

★★★★★
4.0
  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

EcoWatch's Guilford, CT Solar Company Rankings FAQs

What is the most reputable solar panel installation company in Guilford?

The best local solar company in Guilford is SunPower, with a rating of 3.00 stars.

What is the negative environmental impact of solar panel manufacturing?

Making solar panels uses chemicals and produces toxic waste that can be bad for the environment, which is the main negative thing about solar panels.

Is it worth putting solar panels on my home?

Solar panels need a large upfront investment that costs over ten thousand dollars, but whether or not solar panels are worth it depends on a range of factors like how much you pay for electricity and the amount of direct sunlight your roof gets.

How often do solar panels have to be replaced?

On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger level of energy production.

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.