About NanoShield Wisconsin

You Work Hard to Put a Roof Over Your Family’s Head. We Work Hard to Protect It.

At NanoShield Wisconsin, we know your home is your most valuable asset. Owner Derek Korth built this company on a simple premise: too many Wisconsin homeowners were being handed five-figure replacement quotes for surfaces that didn't actually need replacing.Derek started NanoShield to change that. As the Fox Valley's GoNano Certified Contractor, we bring permanent molecular protection technology to homes and properties across Wisconsin — giving people a real alternative before they spend a dollar they don't have to.

Our Core Values

Honesty & Integrity

80% of roofs are replaced too early, and we're here to tell you the truth about yours. If we can't save your roof, we'll be the first to tell you. We treat your home like our own — providing honest evaluations and science-backed advice that puts your family's safety and budget first.

Innovation with Purpose

Our value lies in bringing world-class nanotechnology to the Fox Valley to solve real problems. By choosing shingle rejuvenation over a total tear-off, we provide a smarter, faster, and more effective way to protect your home. We are committed to staying at the forefront of science to give you a "better than new" roof.

Stewardship of the Fox Valley

Being "locally owned" is a responsibility we take seriously. Our values are rooted in the sustainability of our community. Every roof we restore is 2.5 tons of waste kept out of our local landfills. Through our work with the Fox Cities Act of Kindness, we strive to leave this community stronger, cleaner, and better protected for the next generation.

Our Mission

To save homeowners money and end the cycle of waste in the roofing industry. By choosing refurbishment over replacement, we keep 2.5 tons of asphalt shingles out of Wisconsin landfills per project. We provide eco-friendly, sustainable solutions that protect both your home and the environment.

Our Vision

To be the most trusted name in Fox Valley home protection — merging world-class nanotechnology with the honest, hardworking values of our local community.

Locally Owned, Operated, and Invested in Wisconsin.

We don’t just work in Appleton, Neenah, Oshkosh, or Green Bay — we live here. NanoShield Wisconsin understands the damage Wisconsin winters and road salt can do to your roof shingles, concrete driveways, and wood decks. That’s why we offer specialized nano-shielding for every exterior surface of your home, from the Fox Valley to the Door Peninsula.

Roof Refurbishment

Got a roof that's 10-15 years old and still in mostly solid shape, just starting to look tired? GoNano NuRoof Fortify™ is built for that exact moment. The treatment penetrates the asphalt at a molecular level, locks loose granules down, and adds a hydrophobic barrier so Wisconsin's freeze-thaw cycles stop stealing years off your shingles at a fraction of the cost of replacement.

Concrete Sealants

Fox Valley winters chew through concrete. Driveways crack, garage floors flake, and road salt eats away at every exposed surface. NanoShield's GoNano concrete sealant doesn't sit on top of the slab the way conventional sealers do. It penetrates the concrete itself and bonds at the molecular level. One treatment, permanent protection.

Wood Sealants

If you've ever restained a deck only to find yourself doing it again two years later, you know the cycle. The prep, the mess, the weekend gone, the creeping dread that you'll be doing this forever. NanoShield's GoNano wood treatment ends the cycle. It penetrates the wood permanently, sealing out moisture and UV damage from the inside out instead of layering on top of it like every stain you've ever bought.