Best Roof + Solar Companies in Connecticut (2026)

Why Connecticut Is One of the Best States for Roof + Solar Bundles

Connecticut homeowners have one of the most compelling financial cases for solar in the entire country. The state consistently ranks among the top three states nationally for residential electricity rates — and those rates have risen sharply in recent years, with many Connecticut households paying $0.25 to $0.28 per kilowatt-hour or more. At those electricity costs, every kilowatt-hour your solar system produces is worth significantly more than the national average, compressing payback periods and improving the economics of both purchased and financed systems.

Connecticut's housing stock reinforces the bundle opportunity. The state has one of the oldest residential housing inventories in New England — a large proportion of Connecticut homes were built before 1980, and many are approaching the end of their useful roof life. The roof + solar bundle model thrives in exactly this context: homeowners who need a new roof anyway can eliminate the redundant labor of two separate projects, lock in both components under a single financing structure, and start generating solar savings immediately after installation.

The Connecticut Green Bank, one of the nation's first and most imitated state green banks, has created a sophisticated ecosystem of solar financing tools that make installation accessible to a broad range of Connecticut homeowners — regardless of whether they prefer ownership or monthly payments. This financing infrastructure, combined with tax exemptions and net metering, makes Connecticut a particularly strong market for the roof + solar bundle.

Connecticut Solar Incentives in 2026

Connecticut's solar incentive framework has evolved over the past several years. Here's the current landscape for Connecticut homeowners:

Sales and Use Tax Exemption

Connecticut exempts solar energy equipment from the state's 6.35% sales and use tax. On a $25,000 solar installation, this exemption saves approximately $1,588 at the point of purchase — an automatic, no-application-required benefit for Connecticut solar buyers.

Property Tax Exemption

Connecticut law provides a property tax exemption for residential solar energy systems. Solar panels and associated equipment installed on your Connecticut home are exempt from property tax assessment for 15 years from installation. This means your home's tax assessment will not increase as a result of your solar installation — even as solar adds meaningful value to your home's resale price.

Net Metering

Connecticut has a net metering framework that credits solar system owners for excess generation exported to the grid. When your system produces more power than you use, credits are applied to your utility account and can offset future bills. Eversource and Avangrid (United Illuminating) each administer net metering for their respective service territories. Ask your installer about the current net metering rate and credit structure applicable to your specific utility.

Connecticut Green Bank: Smart-E Loan

The Connecticut Green Bank's Smart-E Loan program provides low-interest financing for home energy improvements including solar installations. Unlike solar leases and PPAs, the Smart-E Loan is a homeowner-owned financing structure: you own the system from day one and capture the full value of federal tax credits and any state incentives. Loans are available through participating local credit unions and banks, with terms designed to make monthly payments manageable. Contact the CT Green Bank (ctgreenbank.com) to confirm current rates and participating lenders.

Source: Connecticut Green Bank (ctgreenbank.com). Confirm current loan terms and availability.

Federal Investment Tax Credit (ITC)

The federal ITC provides a tax credit on your solar system cost. Important note: Following the 2025 "Big Beautiful Bill," the ITC structure for residential purchases has been modified from the 30% rate that applied in prior years. Confirm the current applicable percentage with your installer or tax advisor before finalizing your project budget. Homeowners who lease or use a PPA do not claim the ITC directly — the financing company captures it and passes through savings via reduced payments.

Eversource and Avangrid Programs

Eversource (serving most of Connecticut) and Avangrid/United Illuminating (serving southwestern CT including New Haven, Bridgeport, and Milford) periodically offer rebates and demand response programs for solar and battery storage customers. Program availability, terms, and compensation rates change year to year. Ask your installer what utility-specific programs may be available for your service territory at the time of installation.

Verify current utility program availability at energizect.com and with your installer.

How We Ranked Connecticut Companies

Our rankings use the same 5-category methodology applied to all company reviews on this site. Each category is weighted equally at 20%, and every company is scored on a whole-number scale of 1–5:

• Roof + Solar Integration (20%): Integration and quality of the roof + solar bundle
• Roof Quality & Warranty (20%): Shingle brand, warranty terms, roofing certifications
• Solar Quality & Equipment (20%): Panel efficiency, inverter brand, equipment warranties
• Reputation & Reviews (20%): Google rating, review volume, SolarReviews score, years in business, BBB status
• Pricing & Financing (20%): Transparency, competitiveness, financing structures

See our full rating methodology for detailed scoring criteria.

Our Connecticut Rankings

#1 — Evergreen Solar: 4.6/5 ★ (Editor's Choice)

Evergreen Solar Corporation, headquartered in Pawtucket, Rhode Island, serves Massachusetts, Rhode Island, Connecticut, Southern New Hampshire, and New Jersey — with equal depth and commitment across all five states. In Connecticut, Evergreen has built the same track record they have in their home state: proven bundle installations in a range of Connecticut home styles, from colonial-era homes in the Farmington Valley to coastal ranches along the Shoreline.

The Evergreen bundle is the same across all five states: full roof tear-off and replacement with CertainTeed Landmark shingles (50-year manufacturer warranty), American-made solar panels (manufactured in Georgia, USA), a 25-year workmanship warranty covering both roof and solar, and $0-down lease or PPA financing that consistently delivers immediate monthly savings for Connecticut homeowners paying $0.25+/kWh electricity rates. Their 4.9-star Google rating across 300+ reviews reflects consistent execution and strong customer communication on complex, multi-trade projects.

Evergreen's education-first sales approach stands out in a market where some companies lead with aggressive discounts or misleading "free roof" claims. Their consultations focus on helping homeowners understand their actual savings potential — which in Connecticut's high-rate environment is often compelling enough to speak for itself.

Best for: Connecticut homeowners who want the most proven, best-warranted roof + solar bundle from the company that originated the category in New England.

Read the full Evergreen Solar review →

#2 — Trinity Solar: 3.4/5 ★

Trinity Solar's scale and Connecticut-specific infrastructure make them the strongest large-company alternative to Evergreen in the state. With dedicated Connecticut field operations, decades of experience navigating Eversource and Avangrid interconnection processes, and 85,000+ completed installations nationally, Trinity brings a depth of permitting and utility relationships that smaller regional installers cannot match.

In Connecticut, Trinity installs Qcells solar panels with SolarEdge inverters and IKO architectural shingles with a 20-year manufacturer warranty. All four financing structures are available — a significant advantage for Connecticut homeowners who want to choose between cash, loan, lease, or PPA based on their tax situation and financial goals. Their Connecticut coverage extends from the Shoreline to the Quiet Corner, making them one of the few companies that can serve all corners of the state.

The same caveats apply as in other states: Trinity's SolarReviews score (3.1/5) reflects documented communication and scheduling issues that a company of their size should have resolved. Get a quote from Trinity, compare it carefully against Evergreen's, and ask pointed questions about crew accountability and project timelines before making a decision.

Best for: Connecticut homeowners who want a large, established installer with statewide coverage and all four financing options, and who are prepared to manage the communication overhead of a large organization.

Read the full Trinity Solar review →

#3 — Sunergy Solutions: 3.6/5 ★ (Best for Northern CT)

Sunergy Solutions brings the strongest independent review record of any company on this list to Connecticut homeowners: 146 five-star reviews on SolarReviews at 4.91/5. Their Enphase Platinum Installer certification, NABCEP-certified technicians, and multi-office New England footprint make them a well-credentialed option across Connecticut — particularly for homeowners in the northern part of the state who are geographically closer to Sunergy's New Hampshire base.

Sunergy's service portfolio is broad: solar, roofing, gutters, EV charging, and battery storage can all be coordinated through a single project. For Connecticut homeowners who want a whole-home energy upgrade alongside their solar and roofing project, Sunergy's multi-service capabilities are a genuine advantage.

The key limitation remains consistent with other states: Sunergy does not offer lease or PPA financing. Their $0-down programs are structured as ownership loans, which means you'll need to qualify for financing. For Connecticut homeowners who prefer a monthly payment structure without system ownership, Trinity Solar or Evergreen are better fits. For those who can access loan financing and want outstanding independent reviews, Sunergy's track record is hard to argue with.

Best for: Northern Connecticut homeowners who can qualify for solar loan financing and want an installer with outstanding independent credentials and the option to bundle additional home energy improvements.

Read the full Sunergy Solutions review →

#4 — Sunfinity Power & Roofing: 4.0/5 ★

Sunfinity Power & Roofing, based in Johnston, Rhode Island, serves Connecticut as part of their core tri-state (MA/RI/CT) market. As a genuine bundle specialist with 30 in-house crew members, GAF roofing certification, and NABCEP-certified solar installers, Sunfinity brings the same credentials to Connecticut that they bring to their home state of Rhode Island. Their 4.9-star Google rating and A+ BBB accreditation reflect a company that takes quality control seriously despite their relatively recent founding (2018).

The Sunfinity bundle includes CertainTeed and GAF premium shingles with 50-year manufacturer certification, Tier-1 solar panels with SolarEdge or Enphase inverters, and optional battery storage and mini split heat pumps — a comprehensive offering that can address a Connecticut home's full energy needs in a single project.

For Connecticut specifically, Sunfinity's Rhode Island base gives them natural geographic reach into the Shoreline, eastern Connecticut, and the southeastern corner of the state. For homeowners in Fairfield County or the western end of the state, travel time may add to project timelines; confirm service availability for your specific town.

Best for: Connecticut Shoreline and eastern CT homeowners who want a bundle-specialist with in-house crews and the option to add battery storage or heat pump upgrades.

Read the full Sunfinity Power & Roofing review →

#5 — New England Energy Experts: 3.0/5 ★

New England Energy Experts serves Connecticut as part of their five-state New England footprint, offering their signature bilingual English/Spanish consultation experience. For Connecticut's significant Spanish-speaking population — particularly in Hartford, Bridgeport, New Haven, and Waterbury — they fill a genuine accessibility gap that most solar companies don't address. Their $0-down PPA option and 25-year solar warranty make the core bundle offering competitive.

For English-speaking Connecticut homeowners, New England Energy Experts offers a solid bundle at a competitive price point, though with less publicly disclosed detail on specific panel brands and warranty terms than the companies ranked above them. We recommend requesting full equipment specifications and warranty documentation during your consultation.

Best for: Spanish-speaking Connecticut homeowners, and homeowners in the Hartford, Bridgeport, or New Haven areas seeking local consultation options alongside the larger regional companies.

Read the full New England Energy Experts review →

Our Top Pick for Connecticut: Evergreen Solar

Connecticut's high electricity rates — among the highest in the nation — make the financial case for a roof + solar bundle particularly compelling, and Evergreen Solar is best positioned to deliver on that opportunity. Their 4.6/5 overall rating, 50-year CertainTeed shingle warranty, American-made panels, 25-year workmanship warranty, and $0-down financing structures represent the strongest combination of quality, warranties, and financial value of any company serving Connecticut.

If Evergreen doesn't fit your situation — due to scheduling, location, or other factors — Trinity Solar is the strongest statewide alternative, offering the broadest Connecticut coverage and all four financing options. Sunergy Solutions is the best pick for northern CT homeowners who want exceptional independent reviews and are comfortable with loan financing.

Connecticut-Specific Considerations When Choosing a Company

Eversource vs. Avangrid: Know Your Utility

The vast majority of Connecticut homeowners are served by Eversource, which covers most of the state. United Illuminating — now part of the Avangrid family — serves southwestern Connecticut including New Haven, Milford, Derby, and Bridgeport. Your utility matters for net metering terms, interconnection timelines, and any utility-specific rebate programs. Ask your installer how many systems they've interconnected with your specific utility in the past 12 months, and what their average interconnection timeline has been.

Roof Complexity and Connecticut Home Styles

Connecticut has an unusually diverse housing stock: colonial and Cape Cod styles are common, but so are split-levels, Georgians, ranches, and mid-century moderns. Roof complexity varies enormously — simple gable roofs with good southern exposure are straightforward solar installations, while complex hip roofs, multiple dormers, and significant tree shading are more challenging. Request a structural and solar assessment before receiving a final quote; legitimate installers will perform this assessment before proposing a system design.

Connecticut Green Bank Financing

Connecticut's Green Bank financing tools — including the Smart-E Loan — are state-administered programs with different terms and eligibility requirements than standard solar financing products. Not all installers are equally experienced with Green Bank loan applications. If CT Green Bank financing is important to your project, ask your installer how many projects they've financed through Green Bank programs and whether they handle the application paperwork on your behalf.

Interconnection Timelines with Eversource

Eversource Connecticut interconnection review timelines for residential solar can range from 30 to 90+ days depending on your location and the volume of applications Eversource is processing. This is a utility process outside installers' control — but installers with established Eversource relationships and experience submitting complete, accurate applications the first time experience significantly shorter timelines. Ask for your installer's current average Eversource interconnection timeline before finalizing your installation schedule.

Frequently Asked Questions: Roof + Solar in Connecticut

Is Connecticut a good state for solar in 2026?

Yes — Connecticut's electricity rates are among the highest in the country, which makes solar's financial value unusually strong. At $0.25–$0.28/kWh for many CT homeowners, every kilowatt-hour of solar production is worth more than in the average state. When you combine that with sales and property tax exemptions, net metering, and Connecticut Green Bank financing tools, the math on solar in Connecticut is compelling.

What solar incentives are available in Connecticut?

Connecticut offers: a 6.35% sales tax exemption on solar equipment; a property tax exemption for 15 years from installation; net metering through Eversource and Avangrid; and the Connecticut Green Bank's Smart-E Loan for low-interest ownership financing. The federal Investment Tax Credit also applies (confirm current rate with your tax advisor following 2025 policy changes). Utility-specific rebate programs may be available depending on your service territory — ask your installer what's currently applicable.

Can I combine a roof replacement and solar in Connecticut?

Yes — and it often makes strong financial sense in Connecticut given the state's housing stock. The four bundle providers on this list (Evergreen Solar, Trinity Solar, Sunergy Solutions, and Sunfinity Power & Roofing) all offer integrated roof + solar projects with coordinated warranties and financing. Connecticut homeowners who need a new roof should always get a solar quote before replacing their roof with a roofing-only contractor — the bundle economics often work strongly in your favor.

What utility serves my Connecticut home?

Most Connecticut homeowners are served by Eversource. Avangrid (United Illuminating) serves southwestern Connecticut including New Haven, Bridgeport, Milford, Orange, Derby, and Shelton. You can check your utility territory on your electric bill or at pura.ct.gov. Your utility affects your net metering terms, interconnection process, and available utility incentive programs.

How do I compare Connecticut solar quotes?

Use our company evaluation guide to structure your comparison — it covers roofing and solar credentials, warranty terms, financing structures, and questions to ask during your consultation. Our solar savings calculator can give you a baseline estimate of potential savings before your consultations begin. We recommend getting at least two quotes and comparing total system cost, warranty terms, equipment brands, and financing structures before deciding.

Shingle Quality Comparison

We've added shingle brand and installer certification data to the comparison table above. For a detailed analysis of how shingle brands compare, see our full shingle comparison or read our guide on why roofer certification matters more than the shingle brand.