Home Addition Contractor in Thompson, CT

Home Addition & Remodeling Contractor in Thompson, CT

If you’re planning a home addition, kitchen remodel, bathroom renovation, or garage build in Thompson, Connecticut, Lagace Construction is your local, licensed choice. Based in Andover, CT — right here in Windham County — we’ve been building and remodeling homes across Thompson and the surrounding area for over 25 years.

Thompson is a rural town in the northeastern corner of Connecticut, known for Thompson Speedway and a quiet New England character that attracts homeowners who want space and privacy. The town’s generous lot sizes and agricultural zoning make it straightforward to add outbuildings, garages, and substantial additions without lot-line conflicts.

Services We Offer in Thompson, CT

  • Home Additions — Single-story rooms, second-floor additions, in-law suites, and ADU conversions
  • Kitchen Remodeling — Full design-build kitchens with cabinetry, countertops, and layout changes
  • Bathroom Remodeling — Master baths, family baths, full conversions, tile, and vanities
  • Garage Construction — Detached and attached garages, 1–3 bay builds
  • Basement Finishing & ADUs — Convert basement to living space or income-producing unit
  • Decks, Roofing & Siding — Composite decks, full roof replacements, exterior siding
  • New Home Construction — Custom ground-up builds, land prep through final walkthrough

Why Thompson Homeowners Choose Lagace Construction

We’re not a regional franchise or a subcontracting middleman — we’re a family-owned crew that shows up every day. Scott Lagace has been hands-on in the field for 25+ years, and every project gets the same attention whether it’s a $15,000 deck or a $300,000 addition.

  • CT Licensed & Insured — NHC #NHC-0016939, Electrical #E1-00191661
  • 4.9 stars on Google across 40+ reviews
  • In-house crew — no rotating subs for core carpentry work
  • Clear written estimates with line-item pricing
  • We pull all permits and handle all town inspections

Serving Thompson and Nearby Communities

Our crew regularly works throughout Windham County. If you’re in Thompson or a neighboring community like Putnam or Woodstock, we can typically schedule an on-site estimate within a week.

Frequently Asked Questions — Thompson, CT

How much does a home addition cost in Thompson, CT?

Home addition costs in Thompson typically range from $150 to $350 per square foot depending on foundation type, finishes, and scope. A single-story addition with a slab foundation runs $180–$220/sq ft; a second-floor addition averages $200–$250/sq ft. We provide a free on-site estimate with line-item pricing so you know exactly what you’re getting.

Are you licensed to work in Thompson, Connecticut?

Yes. Lagace Construction holds a Connecticut New Home Construction Contractor license (#NHC-0016939) and an Electrical Unlimited Contractor license (#E1-00191661), valid statewide including Thompson. We pull all required permits through Thompson’s building department and manage every inspection.

How long does a home addition take in Thompson?

Most additions take 3–6 months from permit approval to final walkthrough. Simple room additions may close out in 10–12 weeks; larger two-story or full-addition projects typically run 5–6 months. We’ll give you a real timeline — not an optimistic guess — before you sign anything.

Get a Free Estimate in Thompson

Ready to start your project? Call Scott directly at (860) 933-2700 or request a free on-site estimate online. We’ll visit your home in Thompson, walk the project, and follow up with a written estimate — usually within 5 business days. No pressure, no obligation.

Lagace Construction LLC
CT Licensed & Insured | Serving Thompson, CT and all of Windham County
(860) 933-2700 | lagaceconstruction.com