How to Choose a Solar Company in Connecticut (2026)
A 2026 checklist from SunPol Solar for choosing a Connecticut solar company: HIC registration, insurance, installers, warranties, financing and RRES.
Choosing a solar company in Connecticut comes down to checks you can verify yourself: state registration, insurance, who does the work, written warranties, financing terms, the utility tariff and reviews. This guide from SunPol Solar, a Newington installer, lists each check and where to confirm it. SunPol's own details for each check are listed at the end.
What should you check before choosing a solar company in CT?
Check facts, not rankings. Confirm the company's Connecticut home improvement contractor (HIC) registration and the licenses behind the electrical work, get an insurance certificate, and ask who installs. Then compare written warranties, ownership, financing terms and the utility tariff in each proposal, and read reviews across several sources with their dates in mind.
| Criterion | What to ask | Where to verify |
|---|---|---|
| HIC registration | What is your Connecticut HIC registration number? | eLicense |
| Solar and electrical licenses | Who on my job holds a PV or E license? | DCP's solar trades page and eLicense |
| Insurance | Can I have your insurance certificate? | The insurer, by phone |
| Who installs | Are your installers employees or subcontractors? | Your written contract |
| Warranties | What are the product, workmanship and roof penetration terms? | Warranty documents in the proposal |
| Financing | Who owns the system, and what is the total I will pay? | The signed agreement |
| Utility tariff | Is this modeled on RRES Netting or Buy-All? | PURA's RRES page; your utility |
| BBB profile | What does your BBB business profile show? | bbb.org |
| Reviews | Where can I read recent reviews of your work? | Several review sites, with dates |
How do you verify a Connecticut solar company's HIC registration, licenses and insurance?
Look the company up on the state's eLicense portal. Connecticut's Department of Consumer Protection (DCP) requires anyone contracting with a consumer for work on residential property to register as a home improvement contractor, and the contract must show that registration number. Connections to your home's existing wiring need an E-1 or E-2 license holder.
DCP's contractor page explains who must register. The eLicense lookup is maintained by the State of Connecticut and is described there as a primary source of verification.
DCP's solar trades page lists the PV-1 limited solar electric contractor and PV-2 limited solar electric journeyperson licenses for photovoltaic systems, including storage. It says PV-1 and PV-2 holders may not connect to an existing panel, wiring or utility meter; only E-1 or E-2 license holders can make that connection.
DCP's 2025 consumer reminder tells homeowners to ask for proof of general liability insurance coverage of at least $20,000 and to call the insurer to confirm the policy is active and valid. It also notes that if a project with an actively registered contractor goes wrong, consumers may be eligible for the Home Improvement Guaranty Fund, which has a $25,000 limit.
Who will actually install the solar system on your Connecticut home?
Ask every company, in writing, whether its installers are employees or subcontractors, which licensed electrician makes the final connection, and who manages the job day to day. SunPol Solar's Connecticut page says it works with licensed local installation teams under direct SunPol project oversight. Ask SunPol, like any installer, to name the crew and licenses for your job.
What warranties should a Connecticut solar proposal spell out?
Look for three written layers: the manufacturer's warranty on panels and inverters, the installer's workmanship warranty, and a roof penetration warranty for leaks at mounting points. The FTC says bids should state what warranties apply to the equipment and the installation workmanship.
On SunPol Solar's warranty page, cash purchases include the panel manufacturer's warranty (terms vary by brand and model), Enphase's 25-year limited microinverter warranty where Enphase microinverters are installed, and SunPol's 10-year workmanship and roof penetration warranty. Prepaid lease customers get service coverage for the 25-year term under their agreement, and with a PPA the provider owns and maintains the system. Terms and exclusions apply.
Which solar financing options should Connecticut homeowners compare?
Compare five structures: cash purchase, a loan, a lease, a prepaid lease and a power purchase agreement (PPA). The main differences are who owns the system, who maintains it and how you pay over the term. The FTC notes that with a lease or a PPA, you don't own the system, so ask each company to show ownership in writing.
| Option | Who owns the system | How you pay |
|---|---|---|
| Cash purchase | You, from day one | One purchase payment |
| Loan, such as a CT Green Bank Smart-E loan | You, from day one | Loan payments to the lender |
| Lease | The leasing company | Payments set in the lease contract |
| Prepaid lease (SunPol Prepaid Solar Program) | SunPol, under the agreement | One price, paid upfront, for the 25-year term |
| PPA | The PPA provider | A price per kWh the system produces |
The CT Green Bank Smart-E loan can be used for solar panels on 1–4 unit homes, and as much as 25% of the loan can cover related work such as roof repairs before going solar. As of November 2026, the Green Bank lists a current maximum loan amount of $50,000, and the lender makes all final underwriting decisions.
On SunPol Solar's financing page, the Prepaid Solar Program is a 25-year prepaid solar lease with one price, paid upfront, at a program price 30% less than buying the same system, for systems in service (PTO) by Dec 31, 2027. Your written agreement sets the payment schedule for the Prepaid price. Propel is a SolSource program, not a SunPol product: a loan funds a prepaid SolSource energy services agreement, with a potential 25–35% program-price discount versus buying the same system; your exact percentage depends on your project and is confirmed in your written proposal. SolSource owns the system at installation, your loan payments continue after any ownership transfer, and availability requires project qualification and lender approval.
With a solar PPA through SunPol's financing partner, rates start from 16¢/kWh for qualified customers, and your rate can rise 0%–2.99% a year by contract. The provider owns the system, you pay for the power it produces, and utility charges may remain.
In the 12 Connecticut municipal-utility towns (Bozrah, Franklin, Griswold, Groton, Lebanon, Lisbon, Montville, North Branford, Norwalk, Norwich, Salem and Wallingford), SunPol offers only cash purchase or a loan.
How do RRES and CT Green Bank programs affect a Connecticut solar quote?
For Eversource and UI customers, residential solar is compensated through the Residential Renewable Energy Solutions (RRES) program, under a 20-year Buy-All or Netting tariff. Netting projects that apply in 2026 carry a $0.0402/kWh on-bill charge on total generation, per the Eversource RRES FAQ. A clear proposal names the tariff and shows that charge.
With Buy-All, the rate is locked in for 20 years once you enroll. With Netting, credits for net generation follow your retail rate, which changes over time.
Municipal electric utilities have their own requirements, so confirm the electric company on your bill before comparing proposals.
PURA's RRES page says its latest review authorized a working group on standardizing Customer Disclosure Forms so customers receive complete financial information before signing a solar contract. SunPol's guide to the 2026 Solar Energy Adjustment explains how to compare Netting and Buy-All.
The Connecticut Green Bank offers homeowners Smart-E loans, and it administers Energy Storage Solutions with Eversource and UI, providing upfront and performance incentives for home batteries.
How should you read BBB profiles and online reviews for Connecticut solar companies?
The Better Business Bureau says its letter grade, from A+ to F, is its opinion of how a business is likely to interact with its customers. Customer reviews are not used in that grade. For reviews, read several sites, check the dates, and see how the company answers complaints.
According to BBB's ratings overview, ratings are based partly on how long a business has been operating, and NR ("No Rating") is not a grade and is not negative. The FTC suggests searching online for a company's name with the words "complaints" or "reviews."
SunPol Solar is rated ★★★★★ 5.0 on Google; read those reviews alongside other sources too.
What are the red flags when choosing a solar company in Connecticut?
Walk away from pressure to sign quickly, requests to pay in cash, promises of rooftop panels at no cost, and claims that a company is from the government. The FTC warns against each of these. Connecticut's DCP adds that an up-front payment generally should not be more than one-third of the project.
- Being asked to sign on an electronic tablet without seeing the full agreement. The FTC's solar scam alert says to stop if that happens.
- No written contract. DCP says the law requires a written, signed and dated contract for every home improvement job.
- No cancellation notice. The contract must state that you may cancel before midnight on the third business day after signing, and Saturday is a legal business day in Connecticut.
SunPol's guide to solar red flags in Connecticut covers inflated production estimates and hidden escalator clauses.
Your Connecticut solar company checklist
- Look up the HIC registration on eLicense and match it to the contract.
- Ask which E-1 or E-2 license holder will connect the system to your existing wiring.
- Get proof of general liability insurance and call the insurer to confirm it.
- Ask whether installers are employees or subcontractors.
- Get product, workmanship and roof penetration warranties in writing.
- Confirm who owns the system and the total you will pay.
- Ask which RRES tariff the proposal models.
- Obtain at least three quotes before choosing a registered and qualified contractor.
Questions to ask any Connecticut solar company
- Which panels, inverter and battery are in this proposal, by brand and model?
- Does this proposal include the 2026 Netting charge?
- Who maintains the system, and what happens if I sell my home?
- What is the total I will pay over the full term, including interest, fees or escalators?
SunPol Solar's details for the same checks
- Registration: CT HIC-0698394 and MA HIC #220128. Verify them yourself.
- Location and age: 125B Rockwell Rd, Newington, CT 06111, founded in 2024, serving Connecticut and Massachusetts.
- Insurance: ask SunPol for its certificate of insurance and confirm it with the insurer, as you would with any contractor.
- Financing: cash purchase, Smart-E loan, Prepaid Solar Program, Propel (subject to project qualification and lender approval) and a PPA through a financing partner, with cash or loan only in the 12 municipal-utility towns.
- Reviews: ★★★★★ 5.0 on Google.
SunPol serves homeowners across Connecticut and Massachusetts, from Hartford and West Hartford to communities throughout both states. Statewide options are on the Connecticut solar company hub.
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Common Questions
Frequently Asked Questions
How many solar quotes should I get in Connecticut?
Connecticut's Department of Consumer Protection advises getting at least three quotes before choosing a registered and qualified contractor. Compare them on the same terms: system size, equipment, ownership, total cost, warranties and the RRES tariff each proposal assumes.
Can I cancel a solar contract after signing in Connecticut?
Yes, within the legal window. Connecticut home improvement contracts must include a notice that you may cancel before midnight on the third business day after signing, and Saturday is a legal business day in Connecticut. Check that the notice is near your signature.
Should I choose a local or a national solar company?
Either can work if it passes the same checks. Ask where the company is based, who manages your project locally, who installs, and who answers service calls after installation. SunPol Solar is based in Newington, CT, and serves Connecticut and Massachusetts.
How do I check a solar company near Hartford?
Use the same steps as anywhere in Connecticut: confirm HIC registration on eLicense, ask for insurance and electrical license details, compare written warranties and financing, and read reviews. Confirm which utility serves your address, because municipal electric utilities have their own requirements.
Who owns the solar panels in a lease or PPA?
The leasing company or PPA provider does, not the homeowner. In SunPol Solar's Prepaid Solar Lease, SunPol owns and maintains the system under your agreement. In a solar PPA offered through SunPol, the provider owns the system on your roof and you pay for the electricity it produces.
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