Exterior & Remodeling Services in Madison, WI

Ganser Company has been a locally-owned and operated family business proudly serving the Greater Dane County area for more then 75 years. Serving Madison, Monona, McFarland, Verona, Fitchburg, Middleton, Sun Prairie, and surrounding areas for all roofing, siding, window, and repair needs. Ganser Company will bring your home's original beauty back with timeless products, new innovation, and hands-on displays designed to let your imagination run wild!

Ganser Company Services


Bath Planet




Windows & Doors







Ganser Has the Answer - Just Ask This Customer!

Being in business since 1939 there isn't anything we haven't seen. This customer has a very specific issue with his house due to architectural design. Between estimator Kelly Hickman, Production Manager Jim Harbordt, and our experienced crew, we were able to give this customer the answer to solve his problem.

Call today! No project is to small, large or challenging! Remodeling - exterior or interior, Roofing, Siding, Windows & Doors, Gutters & Overhangs. Ganser has the Answer!



Featured Project

This house is decked out to the nines! Full Fiberglass Exterior! New roof with the Golden Pledge Warranty and GAF Designer Shingles, new Infinity Fiberglass by Marvin windows and APEX Fiberglass Siding in Diamond White. This project was also great in that the customer was on vacation and when they returned, their house exterior was all brand new!

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    Infinity Fiberglass by Marvin Windows

    Fiberglass windows won't mold, crack, fade, or warp. Or, just looking to update your entry, patio, or garage doors? Create a dramatic new look or an authentic replication with custom capabilities!

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    APEX Fiberglass Siding

    Get the crisp look of freshly painted wood without the demanding upkeep and since fiberglass doesn't expand and contract – it can stand up to the harshest Wisconsin weather!

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    Golden Pledge Warranty

    Protect your home from leaking, mold, improper ventilation, ice damming, and all the other damaging problems that happen without a proper roofing system.

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Serving Madison and the Surrounding Areas

Call For Your Free Estimate Today!


We Look Forward to Providing You With Exceptional Service

1906 W Beltline Hwy
Madison, WI 53713

Mon-Wed, Fri – 8am-5pm

Thu – 8am-8pm

Sat – 9am-2pm

Sun – Closed