
We deliver professional, high-quality exterior cleaning services designed to protect and beautify properties throughout Sun Prairie, Madison, Verona, and the surrounding areas of Dane County.
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At Gunderson Soft Wash Services, we know that keeping a property clean in Sun Prairie comes with its own unique set of challenges. The open geographic layout of Dane County means your home or business is constantly exposed to heavy winds, agricultural dust from the surrounding fields, and intense seasonal humidity.
Whether you own an established, tree-shaded home near Angell Park Speedeway that battles constant mold and moss growth, or a newer property in developments like West Prairie Village where the blazing sun bakes ugly green algae into your vinyl siding, we know exactly how to treat it. We don't just blast away dirt; we use specialized, low-pressure soft washing solutions that kill organic growth at the root without damaging your building's exterior.
From removing those stubborn black streaks on your shingles to brightening up sun-baked concrete driveways and patios, we bring our elite mobile rigs straight to your Sun Prairie doorstep. While we cover a wide 65-mile radius across the region—frequently servicing our neighbors in Madison, DeForest, Watertown, and Marshall—Sun Prairie remains one of our busiest and most valued service hubs.
We make protecting your curb appeal effortless. Reach out today for a free, no-obligation quote. We guarantee a response within 24 hours and offer flexible scheduling designed to work completely around your calendar.

From shingle peaks to concrete pathways, Gunderson Soft Wash Services provides specialized restoration that protects your Sun Prairie property’s long-term value.
Call for a free quote today!
Our signature low-pressure soft wash delivers a deep, restorative clean that completely revitalizes your Sun Prairie property. We specialize in eradicating the thick sheets of seasonal pollen, baked-on field dust, and stubborn north-side algae that thrive in the open Dane County climate. We carefully adapt our techniques for every surface—whether we are treating the vinyl siding of a modern two-story near West Prairie Village or cleaning the exterior of an established property near Downtown Sun Prairie—ensuring a flawless finish without the risk of high-pressure damage. It’s the safest, most effective way to protect your home’s materials from Southern Wisconsin's elements while restoring its original, sharp curb appeal.
Dane County winters and heavy traffic leave concrete looking dark and weathered, but our commercial-grade pressure washing completely strips away that embedded wear. We bring high-powered surface cleaners directly to Sun Prairie to blast through stubborn salt corrosion on driveways over by the Sun Prairie Golf Course and scour away heavy tire tracks along the busy Main Street commercial strips.
Our team handles everything from restoring grease-stained industrial bays in the Sun Prairie Business Park to brightening up high-traffic storefront sidewalks over by the Prairie Lakes retail area. Whether it’s a sun-baked backyard patio in West Prairie Village or a stained aggregate walkway near Sheehan Park, we use the exact right force to erase years of deep-set grime, oil, and mud, leaving your hardscapes looking immaculate.
Ignoring those dark, spreading bands across your roofline can end up costing you thousands in premature replacement bills. That discoloration is caused by a specialized bacterium that eats away at the limestone filler inside your shingles, making them brittle and vulnerable to Wisconsin’s extreme seasonal shifts. We bring a highly effective, low-pressure sanitizing treatment to Sun Prairie that targets and destroys this growth completely.
Our process treats everything from the sun-exposed rooftops in newer developments like West Prairie Village to the older, more shaded properties near Sheehan Park. Instead of using damaging high pressure that tears away protective shingle granules, our method gently dissolves the root cause of the staining. Whether you are managing a commercial property along the Grand Avenue corridor or trying to boost the curb appeal of a family home near Angell Park, we completely clear the canvas to keep your roof intact and your property value secure.
Dark oil slicks, ground-in mud, and white salt stains drastically age your property's exterior and destroy its overall value. Our intensive pressure washing service is specifically designed to handle the heavy-duty restoration needs of properties throughout the Sun Prairie area. From restoring the massive concrete parking bays over at the Sun Prairie Business Park to brightening up the weathered driveways of established homes near Sheehan Park, we use heavy-duty mobile rigs to lift years of grime. We don't just push dirt around; our tailored cleaning solutions completely dissolve the toughest stains out of your pavers, aggregate, and walkways, leaving a bright, flawless finish that boosts your curb appeal and preserves your hardscapes.
A dirty, algae-covered deck isn't just an eyesore—it's a major safety hazard that drastically shortens the lifespan of your outdoor investment. For property owners across Sun Prairie, keeping these entertainment zones safe and structurally sound requires a precise touch. From private backyard retreats tucked away near the Sun Prairie Golf Course to busy multi-level decks closer to the center of town, we specialize in safely renewing both natural wood and modern composite materials.
By utilizing a low-pressure, eco-conscious soft washing treatment, we thoroughly eliminate mold spores and dark environmental staining without splintering wood or etching composite boards. This deep-cleansing process strips away the grime while fully preserving the underlying material, leaving your deck thoroughly sanitized, beautifully refreshed, and ready to host your next family gathering.
Your storefront is the first thing a customer notices, making a clean exterior absolutely vital for showing the pride you take in your business. We deliver premium commercial pressure washing and soft washing designed to help local retail spaces and offices maintain an immaculate corporate image. Whether you run a busy restaurant off Grand Avenue, manage a medical building near the SSM Health clinic, or oversee an industrial facility within the Sun Prairie Business Park, our deep-cleaning services are tailored to match your high professional standards.
We understand that minimizing downtime is critical for business owners. To ensure your operations keep running smoothly without disruption, we bypass standard working hours to perform our services entirely during your off-hours, meaning your staff and clients never have to navigate around hoses or equipment. From blasting away heavy winter salt and tire tracks at high-traffic entryways near the Prairie Lakes retail hub to erasing dark environmental stains along Main Street, we apply industrial-grade cleaning solutions to restore your property from top to bottom.
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Relying on brute force to clean a building often causes thousands of dollars in hidden damage, which is why we completely eliminate aggressive, high-pressure spray from our house washing process. Properties across Sun Prairie face completely different environmental wear depending on their layout and location. An established, tree-shaded property near Sheehan Park requires a completely different approach than a high-exposure office building along the busy Grand Avenue corridor.
Our team uses targeted chemical solutions rather than raw force to lift away dark stains, seasonal pollen, and baked-on field dust. By using a specialized soft wash to dissolve contaminants on roofs and siding, and reserving our high-performance thermal washers for stubborn concrete pathways near Angell Park, we guarantee an immaculate finish that keeps your structural integrity fully intact. Experience a safer, deeper clean that protects your home’s exterior from Southern Wisconsin weather while instantly boosting your curb appeal.
Protecting the natural beauty of Dane County is just as important to us as delivering a spotless exterior. We treat the local ecosystem with the exact same care we show your property, ensuring our cleaning practices remain completely safe for the surrounding land. Our specialized wash solutions are fully biodegradable and eco-conscious, formulated to break down heavy environmental grime and agricultural dust without threatening your landscape. Whether we are cleaning a home overlooking the fairways at the Sun Prairie Golf Course or working on a property near the wetlands of Sheehan Park, we use strict plant-protection protocols to keep your lawns, perennials, and landscaping perfectly healthy.
Maintaining great curb appeal should never come at the expense of a safe environment for your family. Our low-pressure treatments completely neutralize the heavy mold and humidity-driven mildew common to Southern Wisconsin summers, while remaining entirely safe for your children and pets. From the active, family-friendly blocks near the Sun Prairie Ice Arena to the newer residential subdivisions out toward West Prairie Village, we provide a responsible, deep-cleaning service that safeguards your loved ones and preserves our local community.
Pushing grime around with an over-the-counter power washer does absolutely nothing to stop the living organisms eating your curb appeal. It merely skims the surface, leaving behind an invisible film that rapidly multiplies into dark streaks. We utilize a highly targeted, chemical-flush method that completely eradicates these contaminants, stopping the reproductive cycle of the growth dead in its tracks.
Homes situated along the open, wind-swept stretches near the Buckeye Road corridor or tucked into the shaded private lots of Royal Oaks are constantly bombarded by seasonal pollen, agricultural dust, and trapped moisture. Our tailored solutions break the bond between this organic buildup and your exterior finish, lifting away the gray haze without compromising your building materials. This sophisticated approach ensures your siding stays noticeably brighter for a far greater duration than a basic rinse can provide. From the bustling residential blocks near Token Creek to the newest developments on the east side of town, we deliver an authentic, deep-clean that safeguards your property value from the ground up.
You shouldn’t have to cross your fingers and hope for the best when hiring a exterior cleaning crew that lacks proper coverage and safety training. At Gunderson, we eliminate the guesswork by bringing full liability insurance and rigorous safety standards to every single job site. Whether our team is securely harnessed on a complex roofline near the Sun Prairie Golf Course or operating heavy-duty equipment around a major commercial facility in the Business Park, safeguarding your property is our absolute priority from the moment we arrive.
Our track record as Dane County’s most trusted power washing team spans from the vibrant new developments near Main Street to the bustling commercial storefronts along Grand Avenue. We don’t believe in rushed, surface-level washing; instead, we apply precise, technically sound treatments tailored to your specific siding, roofing, and concrete needs. Partnering with us means investing in a professional team dedicated to preserving the beauty and structural value of your Sun Prairie home or business for years to come.
Sun Prairie got its name in 1837 when a surveying party, after nine days of rain, finally emerged at the edge of a sunny prairie and carved the words into a tree in celebration. The city sits in a landscape shaped by glacial drumlins — small oval hills left by retreating ice sheets that characterize the eastern portion of Dane County and create rolling terrain across Sun Prairie. The Yahara River valley runs through portions of the area, and the region's glacially-deposited soils create conditions that hold moisture near the surface.
Now the second-largest city in Dane County and one of Wisconsin's fastest-growing communities, Sun Prairie has a wide mix of housing stock — from older farmhouses and bungalows near the historic downtown to newer subdivisions on the expanding periphery. All face the same regional challenge: Wisconsin's humid continental climate and the algae, mold, and mildew it encourages on exterior surfaces. Soft washing addresses these issues thoroughly and produces results that pressure washing alone cannot match.
Sun Prairie is also known as the birthplace of artist Georgia O'Keeffe and home to Jimmy the Groundhog, whose annual Groundhog Day ceremony has been a community tradition since 1886. The city's growing commercial sector benefits from professional exterior maintenance — a clean storefront signals care and quality to the customers driving Sun Prairie's rapid growth.