Six categories. Forty-plus questions. Pulled from the calls we get most often. If your question is not here, our Bristol office picks up at 203-903-4091.
A typical 8 – 12 kW residential system runs $25,000 – $40,000 before incentives. After the federal ITC, state rebates, and net metering, most homeowners see effective costs 40 – 60% lower over the first five years. We model your specific roof in Aurora before quoting.
47 days on average across our last 12 months of CT, MA, and RI installs. About 7 – 10 days for the site visit and design lock, 20 – 30 days for permitting and utility interconnection, 2 – 3 days on the roof, and 5 – 15 days for utility approval.
No. Every Teamsun install is done by W-2 employees on our payroll. The crew lead who walks your roof at the site visit is the same crew lead who installs your system, and the same person who picks up the phone if you call about service in year five.
Connecticut, Massachusetts, and Rhode Island as primary service area. Plus Maine, New Hampshire, Vermont, and Florida for project work on request. License numbers are included on every quote and contract.
Neither. Teamsun is the install arm of Green Enterprises, a privately owned New England company. Not a franchise, not VC-backed, not an exit clock. Dan answers the phone at 203-903-4091.
Tier 1 only — REC Group, Q CELLS, and Silfab as our default brands. The exact panel and inverter brand is named on every proposal. We do not write substitution language into our contracts.
FranklinWH, Tesla Powerwall 3, and Enphase IQ Battery 5P. Three Tier 1 brands, picked per-project based on your existing solar (if any), your roof load profile, and your backup goals.
Enphase IQ8 microinverters or SolarEdge HD-Wave string + DC optimizers. We pick by roof shading and load profile, not by what is cheapest this month.
No. The cost savings on Tier 2 panels do not pencil over a 25-year warranty horizon. We will not put on a roof what we will not put on our own families' homes.
Federal ITC (30%), state battery rebates (CT ESS up to $7,500, MA Connected Solutions performance payments), full retail net metering (CT RRES, MA Net Metering + SMART, RI Net Metering or REG), and CT property and sales tax exemptions. We file every form with you.
No. We provide the cost-basis documentation your CPA needs to claim the federal ITC and state credits, but we do not file Form 5695 for you. Always consult a tax professional for your specific situation.
Yes — under the Inflation Reduction Act, batteries 3 kWh or larger qualify for the 30% federal credit, including standalone batteries with no solar attached. Every battery Teamsun installs exceeds the 3 kWh floor.
No. On a lease or PPA, the third-party owner of the system claims the federal ITC. You receive the benefit indirectly through a lower fixed rate per kWh. Cash and loan structures let you claim the ITC directly.
Cash and pre-paid lease require no credit check. Loans typically start at 680 FICO. Our PPA underwrites at 620 FICO — the lowest threshold of any major installer in New England.
$0 down options are available on three of our four financing structures (loan, PPA, PPL). Cash is the only structure that requires upfront capital — and gets the highest lifetime ROI.
No. The Aurora-modeled proposal requires no credit pull. Credit is only run if and when you decide to apply for a loan or PPA.
Most of our lender partners do not have prepayment penalties, but specific loan products vary. Every loan offer comes with a written disclosure that names any prepayment penalty in plain English.
Yes — we re-roof and install solar on the same timeline. One crew, one contract, one warranty path. Recommended if your roof is over 12 years from end-of-life.
Yes. We retrofit batteries onto solar systems we did not install — most installers refuse this work. Any brand, any age, AC- or DC-coupled.
Yes. Production drops, inverter faults, monitoring outages, panel cleaning — we service every solar system in CT, MA, or RI. We file manufacturer warranty claims on your behalf even if the original installer is out of business.
Yes. 25 kW – 500 kW commercial roofs and ground mounts. Stamped engineering, full permitting, MACRS depreciation guidance via your CPA. Hartford, Worcester, Cambridge, and Providence are our highest-volume commercial markets.
You call our Bristol office at 203-903-4091 and a person picks up. Manufacturer warranties cover panels for 25 years, inverters for 10 – 25 years, and batteries for 10 – 15 years. We service systems we installed and ones we did not.
Production-loss diagnostics: same-day remote check. On-site visits: 5 – 10 business days for non-emergency. Storm damage and total system outage: usually within 48 hours, prioritized over routine service.
Manufacturer warranties (25-year panels, 10 – 25 year inverters, 10 – 15 year batteries) are honored by the manufacturers directly even if Teamsun ever closed. The 9,000-install track record and our private-ownership structure are why we are still here, but the warranty math does not depend on our continued existence.
Yes. Teamsun workmanship warranty and manufacturer warranties both transfer to the new homeowner. The system stays with the property. Some financing structures (PPA, lease) require the new owner to qualify or buy out — we walk you through this if you sell.
If your question is not in the FAQ, the fastest path is one of the three below. Real people on the other end.
203-903-4091. Mon – Fri, 8am – 6pm. A person picks up.
Dan@teamsun.us. Typical response within one business day.
Submit a 1-minute form and we will call within one business day.
“Teamsun was the only crew that walked the roof, named the panel brand, and answered every question without checking with someone. Same lead tech came back a year later when I added a battery.”
“Three of my neighbors had Teamsun, so I called them. The crew was on my street five days after I signed.”
“They knew the historic district secretary by first name. Saved us six weeks on permitting alone.”
“Same lead tech who installed it came back four years later to swap an inverter under warranty. No charge, no excuses.”
A 15-minute call with a designer who knows your town. No closer on the line. No follow-up unless you ask for one. $0 down options available.
Bristol office
A person picks up.
Mon – Fri, 8am – 6pm.
Service area
CT · MA · RI
Licensed in ME · NH · VT · FL
Free terms
$0 down, free consult.
No credit card required.