Warmer weather in Wisconsin means one thing for commercial properties: patio season. Whether you’re running a busy café, restaurant, retail plaza, or office building, now is the time when foot traffic increases—and first impressions matter more than ever.
At DeMark’s Window & Pressure Cleaning, we help businesses across Waukesha, Brookfield, Pewaukee, Oconomowoc, and Southeastern Wisconsin clean up for the season with professional concrete cleaning, dumpster corral pressure washing, drive-thru lane maintenance, and building façade washing.
From patios to parking lots, the harsh Wisconsin winter and messy spring leave behind more than just a rough look—they leave stains, salt residue, algae, and grime that can damage your property’s exterior and push customers away. At DeMark’s, our commercial pressure washing services are built to handle it all. We restore clean, professional-looking concrete patios to get your outdoor seating areas ready for the season. We deep-clean dumpster corrals to remove odor, grease, and buildup in high-use waste zones. Our team also pressure washes drive-thru lanes to clear out oil spots, tire marks, and trash residue, helping you maintain a safer, cleaner customer experience. And when it comes to curb appeal, we bring building façades back to
life—removing mold, dirt, and mildew from stucco, brick, and siding so your business always looks its best.

Keep Your Property Clean, Safe, and Inviting
Clean surfaces aren’t just about appearances—they reduce slip hazards, discourage pests, and help you maintain compliance with health and safety codes. Whether you manage a restaurant, apartment complex, retail space, or medical office, we’ll customize a cleaning schedule that keeps your property looking its best year-round.
Don’t wait until customers are already walking through the door. Start patio season strong with a cleaner, more professional exterior—powered by DeMark’s.