Best Solar Installation Companies in Connecticut (2024)

By Jessica Wimmer Updated February 2, 2024

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Connecticut is one of the fastest-growing small states investing in solar energy.* Since the state launched the Connecticut Property Assessed Clean Energy (C-PACE) program to make solar more affordable, more homeowners have been switching to solar power to reduce their environmental impact and save money on electricity bills.

We analyzed websites, warranties, customer reviews, pricing, and more to determine the best solar companies nationwide. Then, we narrowed down our list to the five we recommend for Connecticut residents.

*According to the Solar Energy Industries Association.

Top Solar Installation Companies

We recommend looking into these solar providers:

Compare Connecticut’s Best Solar Companies

Star Rating Location Presence BBB Rating Link
Sunrun Sunrun
19 States A+ Get Quote
Blue Raven Solar Blue Raven Solar
19 States A+ Get Quote
Palmetto Solar Palmetto Solar
19 States A+ Get Quote
Momentum Solar Momentum Solar
12 States A+ Get Quote
Tesla Solar Tesla Solar
50 States A+ Get Quote
Logo Sunrun
Star Rating
Location Presence 19 States
BBB Rating A+
Get Quote
Blue Raven Solar
Logo Blue Raven Solar
Star Rating
Location Presence 19 States
BBB Rating A+
Get Quote
Palmetto Solar
Logo Palmetto Solar
Star Rating
Location Presence 19 States
BBB Rating A+
Get Quote
Momentum Solar
Logo Momentum Solar
Star Rating
Location Presence 12 States
BBB Rating A+
Get Quote
Tesla Solar
Logo Tesla Solar
Star Rating
Location Presence 50 States
BBB Rating A+
Get Quote
Star Rating
Best For
Location Presence
BBB Rating
Best Solar Leasing Option
19 States
Best In-House Financing
19 States
Best Add-On Protection Plan
19 States
Best Installation Process
12 States
Most Advanced Solar Tech
50 States

Most Experienced: SunPower

SunPower has more than 35 years of solar experience, making it one of the most knowledgeable leaders in the industry. Customers compliment the provider’s prompt and helpful service in reviews. Its panels are among the most energy-efficient on the market, averaging about 0.8% higher than typical efficiency ratings.

SunPower Best High-Performance System

Fast Facts:

  • Warranty options: 25-year system and labor warranty
  • Panel options: Monocrystalline (Maxeon)
  • Financing: Cash purchase, solar loan, solar lease, power purchase agreement (PPA)

Read more: SunPower Review

Benefits and Drawbacks
Pros Builds customized, high-efficiency solar panels Provides solar batteries and electric vehicle chargers Has 25-year system and labor warranty Cons Only uses in-house products, limiting customization More expensive than some other solar providers Some customer complaints cite faulty panels and monitoring systems
What We Like

SunPower offers some of the most energy-efficient and high-performing solar systems available. It’s one of the few companies that uses in-house system components, creating a streamlined system with each part designed to work optimally together.

What Homeowner Reviews Say

We read customer reviews on Trustpilot to see what SunPower homeowners have to say about their experiences. Overall, the company has 2.8 out of 5 stars from over 300 reviews. Here’s a sample:

“Thank you for your prompt service! Your technician was very knowledgeable! We are happy with our service.” —Talia via Trustpilot on May 22, 2023

“Project management has been abysmal. Long delays between various planning and scheduling steps, with no explanation—and usually the project manager was not aware of the problems until we told him/her (there were two different project managers during this time). They were not following up to see if plans were filed with local building offices, or following up to see when permits were ready or inspections scheduled or not.” —Dan via Trustpilot on April 25, 2023

“My solar has been so fun to watch. Peter, the installer that turned on my solar, was able to give me a great orientation to how the solar unit works. He broke things down in a way I could understand. He also gave me some new solar-powered home advice and challenged me to try playing around with my solar storage to see how effective the solar is. I definitely love my system.” —Marian via Trustpilot on January 24, 2023

Best for Home Builders: Sunrun Solar

Sunrun’s BuilderChoice New Homes Program makes it easy to install a solar energy system while building a new home. The program works with your existing roofers and provides a dedicated team that handles all paperwork for code compliance, permitting, and connecting relevant utilities. Sunrun also provides multiple financing options, including an up-front cash purchase, solar loan, solar lease, and power purchase agreement (PPA).

Sunrun Best Solar Leasing Option

Fast Facts:

  • Warranty options: 25-year workmanship and product warranty
  • Panel options: Monocrystalline (various manufacturers)
  • Financing: Cash purchase, solar loan, solar lease, PPA

Read more: Sunrun Review

Benefits and Drawbacks


➕ Provides 24/7 customer support through online chat
➕ Offers optional insurance to cover damaged or stolen panels
➕ Warranty includes workmanship and equipment coverage


➖ Pushes solar leasing, which disqualifies you from system ownership and incentives
➖ Has negative customer reviews regarding service
➖ Varies product availability by zip code

What We Like

Sunrun’s BuilderChoice New Homes Program ensures its installations meet code compliance. Through this program, customers have a dedicated team handling the paperwork required by local utility companies and other organizations to complete their solar project. We also like that the provider’s 25-year workmanship and product warranty includes free equipment replacement and repair for 10 years.

What Homeowner Reviews Say

Though Sunrun has an A+ rating with the BBB, customers are split on the company’s customer service. Some report that service exceeded their expectations, while others cite challenges regarding communication, responsiveness, and timeliness.

“I felt very informed and comfortable signing contracts. The workmanship was timely and professional. I am waiting for the energy company to do final inspection and start up. I have had several questions which were answered quickly because rep knows about state laws. I am totally satisfied, actually more than satisfied with Sunrun.” —Barbara via Trustpilot on March 27 2023

“We assumed a lease from a previous homeowner and have had numerous issues over the last four years. The panels didn’t work for 11 months. We’ve had roof leaks. The support reps don’t call/text back after they’ve been assigned to your case and I’ve been unable to schedule appointments. Meanwhile, no one else at the company is “able” to schedule an appointment beyond the rep assigned to my case (who won’t call back). The technicians haven’t shown up when they’re supposed to show (without giving any updates).” —Mike via Trustpilot on May 10 2023

“Best customer service I’ve had with any contractor in my life! I don’t believe some of the other reviews I have seen on here based on my experience.” —Curtis via Trustpilot on May 25 2023

Best for Guided Services: Momentum Solar

Momentum Solar handles every aspect of solar installation in-house and offers a variety of panels from different manufacturers. The company’s mobile app and frequently updated blog provides customers with ongoing service and education on solar energy use.

Momentum Solar Best Installation Process

Fast Facts:

  • Warranty options: 25-year workmanship and equipment warranty
  • Panel options: Monocrystalline (various manufacturers)
  • Payment options: Full purchase, solar loan, solar lease, power purchase agreement

Read more: Momentum Review

Benefits and Drawbacks
Pros Has mobile app that monitors installation process and energy production Offers comprehensive warranty on equipment and installation Works with various manufacturers Cons Doesn’t provide a system output guarantee Doesn’t prioritize in-person home consultations to determine solar suitability Doesn’t sell solar batteries in all locations
What We Like

Momentum Solar has a long-standing, positive reputation in the solar industry. Its customer reviews on Better Business Bureau and Google Reviews are generally favorable. We appreciate that it intentionally limits its service area to states with established net-metering programs and other solar tax incentives and rebates. A smaller service area also ensures adequate support for each customer.

What Homeowner Reviews Say

Customer reviews on Trustpilot and Consumer Affairs are mostly favorable, pointing to high solar panel performance and reduced electricity bills. The most common complaint is receiving telemarketing calls after requesting information, though it looks like this issue has been resolved. The other primary complaint is no-show appointments.

“They installed my solar panels a year ago and I have never experienced any challenges with the system. Thanks to Momentum Solar, I have forgotten about power bills.” —Felicia via Consumer Affairs on January 28, 2023

“Scheduled 3 appointments and no one showed or called. Tried to contact them and had long hold time.” —Eric via Trustpilot on June 13, 2022

“Been using Momentum Solar for 5-years now and they have never disappointed me. They installed solar, cleaned up the yard, and guaranteed me that the structural integrity of my roof was intact. They are good. I will be using their services again for a holiday home I recently bought.” —Megan via Consumer Affairs on January 13, 2023

Best Aesthetic: Tesla

Solar panels help you save money and reduce your impact on the environment, but not all homeowners love the look of raised panels on their roofs. Tesla sells solar panels and solar shingles that are designed to lay flat against your existing roof. They blend in to look like a regular roof while still providing solar benefits.

Tesla Solar Most Advanced Solar Tech

Fast Facts:

  • Warranty options: 25-year performance guarantee
  • Panel options: Monocrystalline (Hanwha)
  • Financing: Cash purchase, solar loan

Read More: Tesla Solar Review

Benefits and Drawbacks


➕ Provides transparent online quotes with pricing details
➕ Offers up to 10 Tesla Powerwalls per installation
➕ Sells solar roofing options that replace your entire roof


➖ Lacks customization options, limiting system size to four choices
➖ Provides only third-party installation
➖ Some customers cite long wait times for repairs

What We Like

Tesla offers a range of sleekly designed solar panels that blend into your existing roof. Its transparent pricing and detailed website make it a valuable choice for customers looking to learn more about solar panels without needing to speak to a sales representative.

What Homeowner Reviews Say

Customer reviews on Best Company report that the Tesla system looks and performs as well or even better than expected. Customer complaints highlight slow turnaround times and trouble reaching customer support.

“I finally went with the Tesla Solar Roof (tiles not panels), and I couldn’t be happier. I needed a new roof anyway so decided to get it with two PowerWall backup batteries. The product looks amazing and [in my opinion] is the best looking solar product on the market right now.” —Robin via Best Company in May 2022

“The price that Tesla offered was great, and the installation went smoothly, but everything else has been a nightmare. No communications from my project advisor during the initial design phase; I had to call Tesla numerous times to ask questions. Once installed, it took Tesla four times over seven months to file the application to the utility company correctly.” —Timothy via Best Company in December 2022

“We leased our solar power system from Solar City before the buyout from Tesla Solar. Transparent transfer from one company to the other. Excellent transaction throughout with great communication from install through activation. We had to deal with our local power company for the connection and turn-on but that was very smooth with assistance from Tesla.” —Ronald via Best Company in May 2021



Solar Installation Cost Factors in Connecticut

The average cost of a solar system in Connecticut is roughly $20,500, which is within the national average.* The following factors impact this price:

*Cost figure via Angi.

Solar Tax Incentives in Connecticut

Connecticut has solar incentives and rebates that help system owners save money:

Getting Solar Quotes in Connecticut

Getting a solar quote in Connecticut takes just a few minutes. Follow these steps:

  1. Go to the website of a solar company you’re considering. You’ll see “Get a Quote” or similar language either in the top-right corner or bottom of the homepage.
  2. Fill out the required information. This typically includes your basic contact information and details about your property size and roof.
  3. You’ll either receive a free quote there on the site or by email within a few minutes.

You can do this process by phone if you prefer to speak to a representative.

What to Ask Solar Providers

Don’t sign a contract with just any solar company. Take the time to vet the company and ensure it is qualified to do a great job.

We recommend asking solar panel companies these questions:

We also suggest asking these questions about their equipment:

Solar Services Offered

Solar providers often provide a few services to help guide you through the solar process and care for your system after installation. These can include the following services:

Our Recommendation

Every company on our list has something to offer. Consider your top priority to pick the right company for you. If that’s expertise, SunPower has been in business for more than 35 years and is considered an industry pioneer. If you’re building a new-construction home, consider how Sunrun can simplify the solar process by working alongside your builders.

We recommend getting a solar quote from at least three companies before deciding. You should also read customer reviews and talk to providers about their warranty coverage and installation process.

What Solar Installation Looks Like

Most solar companies walk you through these steps:

  1. Site evaluation: An installer will visit your home to confirm the planned design and estimate the scope of work. This person or their team will also inspect your roof, attic, and electrical setup.
  2. Permit approval: Most states require a permit to install solar panels. Your solar provider should handle the paperwork with your local municipality.
  3. Installation: Installation typically takes one to three days. You don’t need to be home for it, but we recommend it so you can ask questions along the way.
  4. Cleanup: Installers should remove any debris and leave your property in good condition.
  5. City inspection: Your provider should coordinate with your city to have an inspector come out to check that your system is up to code.
  6. Utility connection: Your system must be connected to your local utility system if you’re connecting it to the grid. You’ll apply for connection through your utility company (some providers do this for you). Your utility company will also want to inspect your system to make sure it’s in accordance with its utility guidelines. After getting permission to operate, your system can be turned on.
Homeowners Save $20,000 to $97,000 with Solar Panels on Average Over Typical System Life Span
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Solar Companies FAQ

Is it worth going solar in Connecticut?

Yes, it’s worth going solar in Connecticut. The state gets plenty of sunny weather and has several solar incentives to help residents save money on equipment and installation.

What is the average cost of solar in Connecticut?

The average cost of solar in Connecticut is $20,500, which is within the national average. Expect costs to be higher around larger cities such as Hartford and New Haven.

Who is the largest solar installer in Connecticut?

SunPower is one of the largest solar energy companies in the state of Connecticut. Trinity Solar is the largest privately owned residential solar installation company in the area.

Who should I get solar from in Connecticut?

We recommend SunPower for its solar industry expertise, customer reviews, and warranty coverage.

How We Chose the Top Solar Companies

We researched and analyzed dozens of solar panels and solar installation companies. We then formulated a rating system based on each solar installer or manufacturer’s services and products. We weighed several significant factors, including the quality and type of solar panels offered, the customer support network, warranty lengths and limitations, and additional benefits such as mobile apps for monitoring and customer service.

Speaking directly to representatives, we determined how each solar company personalizes its solar panel installation for each home. We also analyzed each company’s warranty options to ensure their product and performance guarantees match or exceed industry standards.

We evaluated each provider based on their rating and history with the Better Business Bureau (BBB) to determine reputation. In addition, we analyzed the 100 most recent Google Reviews for each provider across various locations and branches.

Read more: Our Methodology