Solar Installer for Windham County, CT
Eversource serves every Windham County town below. Which building official covers your village decides your permit office. SunPol Solar handles the paperwork and manages installation.
Registered: CT HIC #0698394 · MA HIC #220128 · Based in Newington, CT · 5.0 stars on Google
- Registered Connecticut Home Improvement Contractor (CT HIC #0698394)
- 100+ completed installations company-wide
- A licensed engineer is on SunPol designs
- Office: 125B Rockwell Rd, Newington, CT 06111
Utility: Eversource throughout
Every Windham County town listed on this page is on Eversource's Connecticut electric list, and we found no town-owned electric utility in the county.
Villages are not towns
The state's building-official list sends village names to their town: Danielson (Killingly), Dayville (Killingly), Moosup (Plainfield), North Grosvenordale (Thompson) and Willimantic (Windham). Send a permit to the town, not the village.
Shared building officials
The state list (updated April 2026) shows 7 of the 15 towns with a full-time official (Killingly, Plainfield, Putnam, Sterling, Thompson, Windham and Woodstock) and 8 with a part-time one (Ashford, Brooklyn, Canterbury, Chaplin, Eastford, Hampton, Pomfret and Scotland).
- Andover, Ashford, Bolton, Marlborough and Willington share one listed building official.
- Eastford, Pomfret and Union share one listed building official.
- Colchester, Columbia, Lebanon and Scotland share one listed building official.
- Brooklyn and Hampton share one listed building official.
- Chaplin and Sprague share one listed building official.
- Stafford and Windham share one listed building official.
- Orange and Plainfield share one listed building official.
Local historic districts
Towns with local historic districts on lhdct.org: Chaplin, Killingly, Sterling, Windham and Woodstock. A local district commission can set design conditions on solar but may not deny it unless the system cannot be installed without substantially impairing the historic character and appearance of the district (C.G.S. §7-147f).
- Chaplin: Chaplin Historic District
- Killingly: Danielson, Dayville and South Killingly
- Sterling: Sterling Hill
- Windham: Windham Center Historic District
- Woodstock: Woodstock Hill
Where SunPol works in Windham County
SunPol hand-delivers permit applications in Ashford, Brooklyn, Canterbury, Chaplin and Eastford, and has completed an installation in Killingly. Our office is in Newington.
Town by town: permit office and local notes
- Ashford: a part-time building official on the state list, shared with Andover, Bolton, Marlborough and Willington. SunPol hand-delivers permit applications here.
- Brooklyn: a part-time building official on the state list, shared with Hampton. SunPol hand-delivers permit applications here.
- Canterbury: a part-time building official on the state list. SunPol hand-delivers permit applications here.
- Chaplin: a part-time building official on the state list, shared with Sprague. Local historic district: Chaplin Historic District. SunPol hand-delivers permit applications here.
- Eastford: a part-time building official on the state list, shared with Pomfret and Union. SunPol hand-delivers permit applications here.
- Hampton: a part-time building official on the state list, shared with Brooklyn.
- Killingly: a full-time building official on the state list. Also mailed as Danielson and Dayville. Local historic districts: Danielson, Dayville and South Killingly. SunPol has completed an installation here.
- Plainfield: a full-time building official on the state list, shared with Orange. Also mailed as Moosup.
- Pomfret: a part-time building official on the state list, shared with Eastford and Union.
- Putnam: a full-time building official on the state list.
- Scotland: a part-time building official on the state list, shared with Colchester, Columbia and Lebanon.
- Sterling: a full-time building official on the state list. Local historic district: Sterling Hill.
- Thompson: a full-time building official on the state list. Also mailed as North Grosvenordale.
- Windham: a full-time building official on the state list, shared with Stafford. Also mailed as Willimantic. Local historic district: Windham Center Historic District.
- Woodstock: a full-time building official on the state list. Local historic district: Woodstock Hill.
Ways to go solar in Windham County
- Solar PPA: pay for the power from 16¢/kWh† for qualified customers, no upfront system cost, yearly increase 0% to 2.99%†. You will still get a utility bill.
- Direct ownership: cash purchase or loan, same price; you own the system, with SunPol's 10-year workmanship warranty.
- Propel: always loan-financed; SolSource owns the system first and a prefunded Early Buyout is applied after Contract Year 5 unless you opt out§. Project and lender approval required.
- Batteries: Tesla Powerwall 3 with a Solar PPA, direct ownership or Prepaid; FranklinWH aPower 2 with direct ownership; Enphase IQ Battery 10C with Propel. A home battery on its own: a 10- or 12-year Tesla Powerwall 3 lease through our financing partner, or a cash or loan purchase of a Tesla Powerwall 3 or FranklinWH aPower 2. Backup for your essential circuits; run time depends on your usage and battery size. You will still get a utility bill.
- Prepaid Solar Program: 30% lower program price than buying the same system*, paid upfront, no monthly payments to SunPol*, 25 years of system coverage*, for systems in service by Dec 31, 2027*. You will still get a utility bill.
We found no town-owned electric utility serving any town on this page, so town-owned-utility limits don't apply here; your consultation confirms what your home qualifies for.
Prepaid Solar Program: how it compares with buying
- The Prepaid Solar Program is one price paid upfront for 25 years, with no monthly program payments: exactly 30% less than buying the same system, for systems in service by December 31, 2027.
- Estimated breakeven is about 8–10 years,
- with an estimated $30,000–$60,000 in savings over 25 years.
Savings are not guaranteed. You will still get a utility bill.
How it works
- Share your bill. About 2 minutes.
- Get your custom design. Payment options with real numbers, on a 30-minute call.
- We handle the rest. Permits, installation and utility paperwork across the Quiet Corner.
What happens in the consultation
Free, no obligation, by Google Meet or phone (in-home available). If solar isn't right for your home, we'll tell you. SunPol is homeowner-only.
Windham County solar questions
Which electric company serves my Windham County address?
Eversource, for every Windham County town listed on this page. Your electric bill confirms it.
I live in Willimantic, Danielson or Moosup. Which building office do I use?
Your town's. The state's list of building officials sends Willimantic to Windham, Danielson and Dayville to Killingly, Moosup to Plainfield and North Grosvenordale to Thompson.
Why do some Windham County towns share a building official?
Several small towns list the same official on the state's list of building officials, for example Brooklyn and Hampton, or Eastford and Pomfret. Each town still has its own permit office, so we confirm days and process with each one.
How much less does the Prepaid Solar Program cost than buying?
Your price is 30% less than buying the same system. Your free design shows your exact price and the estimated breakeven. Savings are not guaranteed. You will still get a utility bill.
Who handles the permits?
SunPol handles your building permit and utility paperwork. The licensed electrician on your installation team files the electrical permit. SunPol hand-delivers permit applications in the Windham County towns named above.
Which Windham County towns have a full-time building official?
The state list shows full-time officials in Killingly, Plainfield, Putnam, Sterling, Thompson, Windham and Woodstock.
