Koss Home Improvement has been remodeling homes across Darien — from Tokeneke waterfront estates to Noroton Heights colonials to Noroton village Capes — since 1986. CT Licensed #0520605. Fully insured. Transparent pricing on every project.
Four services tailored to Darien's demanding market — renovations that hold up to the highest buyer expectations in Fairfield County.
Full gut remodels, custom cabinetry, layout redesigns, and top-tier appliance packages for Darien homes. Design, permits, and complete installation.
Master suite baths, full-footprint expansions, and powder room refreshes. Radiant floors, custom tile, freestanding tubs across Darien.
Expand your Darien home with a primary suite, family room extension, or mudroom addition. Full structural engineering and permit management.
Turn an unfinished Darien basement into a media room, home gym, au pair suite, or playroom. Full electrical, egress, and HVAC included.
Free in-home consultation. We review your space, understand your goals, and give you a realistic cost estimate — no commitment required.
Get a Free QuoteDarien has one of the most uniform housing stocks in Fairfield County: center-hall colonials dominate, with a concentration of stately older homes in Tokeneke near the Sound, mid-century traditional colonials throughout Noroton Heights, and a mix of capes and smaller colonials in Noroton village near the train station.
Tokeneke is Darien's most exclusive enclave — large lots, many with Long Island Sound frontage. Additions here are often substantial: primary suite wings, au pair suites, screened porch additions. Lot sizes allow for the footprint, but proximity to tidal wetlands means the Conservation Commission is in the loop on most additions before the building permit is issued.
Noroton Heights colonials from the 1950s and 1960s are natural candidates for kitchen gut remodels and master bath expansions. The original layouts are functional but dated — galley kitchens with low ceilings, hall bathrooms shared with master bedrooms. Opening the kitchen to the family room and adding a proper en-suite master bath delivers the biggest per-dollar return in this sub-market.
The Darien Building Department at 2 Renshaw Rd runs on a 3–5 week permit timeline for standard residential work. We have a documented track record in Darien and understand what the inspectors require at each phase of the project.
Kitchen remodels in Darien typically range from $50,000 to $140,000 depending on size, materials, and layout changes. Tokeneke estates and Noroton Heights colonials often run $70,000–$110,000 for full gut remodels with premium finishes. See our kitchen remodeling page for full pricing detail.
Yes — structural, electrical, and plumbing work requires a permit from the Darien Building Department at 2 Renshaw Rd. Additions near Tokeneke's tidal wetlands also need Conservation Commission approval. Permit timelines run 3–5 weeks for standard residential work. We pull all permits and coordinate inspections on your behalf.
A standard bathroom renovation in Darien takes 3–5 weeks from permit approval to final inspection. Master suite bath expansions in Tokeneke or Noroton Heights homes can run 5–8 weeks depending on custom tilework and specialty fixture lead times. We give you a detailed timeline before we start.
Yes. We hold Connecticut Home Improvement Contractor License #0520605, which covers all residential remodeling work throughout Connecticut including Darien. We are fully insured with general liability and workers' compensation coverage. Certificate of insurance available on request.
Whether it's a kitchen remodel, bathroom renovation, or a full addition — we've built in your neighborhood. One call gets you a real estimate.