Windham County, Connecticut

Licensed Trade Records in Windham County, Connecticut

Illustration for home services in Windham County
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Browse 544 verified licensed trade contractors registered across Windham County, Connecticut (including Windham, Willimantic, Killingly, Plainfield, Putnam, Thompson). Every record is compiled from Connecticut Department of Consumer Protection (CT DCP) public credential files under Connecticut General Statutes Title 20 (Professional and Occupational Licensing: P-1/P-2 Plumbing, E-1/E-2 Electrical, S-1/S-2 Heating & Cooling, and HIC Home Improvement Contractor Registration).

Official State Authority: Connecticut Department of Consumer Protection (CT DCP) Official Registry · County Seat: Willimantic

Municipalities in Windham County (18)

Select a city or town in Windham County to view local permit guidance and registered all trades records:

544 all trades records · Windham County, CT

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Public Directory Quality: Official CT DCP license records across Windham County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — Windham County

544 matching records across 18 open municipalities · 25 on this page · Contactable records first, then alphabetical.

Show registered-address map (1 records on this page)

Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.

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J & A Lawncare LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 520 Wauregan Rd

HIC.0662059 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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J & L Contractors Inc

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 34 Park Rd

HIC.0558400 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

+1 more registration for this business
No public phone or website on record.
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J P W Building LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 20 Knollwood Dr Ste 1

HIC.0583953 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

+1 more registration for this business
No public phone or website on record.
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J&x Concrete LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 64 Paradise Dr

HIC.0706747 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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J.r.s. Mechanical LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 7 Howe Rd

HIC.0670237 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jameson Construction LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 105 Reynolds St

HIC.0707104 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jeffrey A King

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 3049 David Ave

HIC.0620769 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jfk Roofing LLC

Official license file From the official license file Roofing · Connecticut Department of Consumer Protection · Specialty scope: Roofing & Weatherproofing

Registered address: 18 Brookside Dr

HIC.0654527 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jg Masonry LLC

Official license file From the official license file Concrete · Connecticut Department of Consumer Protection · Specialty scope: Concrete, Stone & Masonry

Registered address: 7 New Rd

HIC.0701957 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jj's Sitework Services LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 19 Tyler Rd

HIC.0670594 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jkb Grounds Maintenance LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 157 Weston Rd

HIC.0583278 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jmb Konstruction LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 30 Marie St

HIC.0645273 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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John Paul Dufault Flooring

Official license file From the official license file Flooring · Connecticut Department of Consumer Protection · Specialty scope: Tile, Stone & Flooring

Registered address: 356 Christian Hill Rd

HIC.0580756 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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John R Brown Home Builder LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 188 Jerusalem Rd

HIC.0638245 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

+1 more registration for this business
No public phone or website on record.
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Jolley Precast Inc

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 463 Putnam Rd

HIC.0559721 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Josh Of All Trades LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 14 Kara Rd

HIC.0661949 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jra Builders LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 23 Phinney Ln

HIC.0651327 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jrw Services LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 52 Belair Dr

HIC.0707235 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

No public phone or website on record.
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Jtd Construction LLC

Official license file From the official license file General contracting · Connecticut Department of Consumer Protection

Registered address: 66 Main St Ste 6

HIC.0658341 · Source dated 2026-10-25 · Service area not confirmed. · Verify on Connecticut portal →

+1 more registration for this business
No public phone or website on record.
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Other Counties in Connecticut

Before the first call

  • Describe the job and ask whether it is within their scope and service area.
  • Check the credential with its issuing authority and ask what applies where the work will happen.
  • Ask about insurance, availability, who will do the work, and a written scope.
  • Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Prepare a project brief

Verification Overview & Key Takeaways: How to Check Official Credentials

HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.

How do you verify a contractor license number and insurance on official portals (FAQ)?

You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.