Oshkosh  ·  Fox Cities  ·  Wisconsin

The Contractor
Oshkosh
Trusts.

Roofing, kitchen remodeling, basement finishing, siding, and new construction — one local crew that shows up, does the work right, and stands behind it.

Call for Your Free Estimate

✓ Licensed & Insured·✓ Free Estimates·✓ Locally Owned

KAS Construction crew on a Wisconsin job site
Licensed & Insured
Free Estimates
Locally Owned
Wisconsin Winter Specialists
★★★★★  Trusted by Fox Cities homeowners
Roofing  ·  Remodeling  ·  New Construction
Serving Oshkosh since day one

What We Build

01
Roofing
Roof replacement, repairs, and ice dam damage specialists built for Wisconsin winters.
→ Free Estimate
02
Kitchen Remodeling
Full kitchen renovations from design through final installation — done right, on budget.
→ Free Estimate
03
Basement Finishing
Unfinished basement to livable space. Family rooms, home offices, gyms — we handle every phase.
→ Free Estimate
04
Siding
Siding that handles Wisconsin freeze-thaw cycles. Vinyl, fiber cement, and wood options.
→ Free Estimate
05
New Construction
Ground-up home builds and additions. We manage every phase from foundation to finishing.
→ Free Estimate
06
General Contracting
One contractor for all your home improvement needs — we coordinate every trade, every detail.
→ Free Estimate
Wisconsin home exterior in winter

Built for the Fox Cities

We Know What
Wisconsin Weather
Does to Homes.

Ice dams tearing up gutters. Basement moisture from snowmelt. Siding warping from freeze-thaw cycles. KAS fixes these problems the right way — so they don't come back next winter.

Get a Free Inspection

What People Say

"

KAS replaced our roof after last winter's ice dam damage. Fair estimate, clean work, two-day job. Exactly what you want from a contractor.

— Mark T., Oshkosh

"

We hired KAS for a full kitchen remodel. They stuck to the timeline, communicated every step, and the result is better than we imagined.

— Jennifer R., Neenah

"

Keith's crew finished our basement from bare concrete to a family room. Fair price, clean work, and they treated our home with respect.

— Dave & Sarah M., Appleton

Get Your
Free Estimate

We'll call you back within the hour. No obligation, no pressure — just an honest assessment of your project.

(618) 960-2607 Or call us directly — we answer 7 days a week
  • ✓  Free estimates — no obligation
  • ✓  Licensed & insured in Wisconsin
  • ✓  Response within 1 hour guaranteed
✓

Thanks — we'll call you shortly!

If it's urgent, call us directly at
(618) 960-2607

Proudly Serving the Fox Cities

Oshkosh, Appleton, Neenah, Menasha, Fond du Lac, Kaukauna,
Waupun, Winneconne, Fox Crossing, and surrounding communities

Willing to travel up to 2 hours from Oshkosh for the right project — call to discuss.

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