Elevate the Look of Your Property
Professional exterior cleaning delivered with care, precision, and reliability.
Seems like a whole new house with the spotless windows. I can't say enough about DeMarks Window cleaning. Have used them several times before with excellent results that exceeded my expectations, and they continue to be the best in the industry.
Make Your Property Stand Out Again
Professional Exterior Cleaning You Can Count On
Dirt, algae, and buildup don’t just dull surfaces, they quietly diminish the look and value of your property. Professional window cleaning, house washing, roof washing, gutter cleaning, and pressure washing restore brightness, protect exterior materials, and instantly improve curb appeal.
Throughout Waukesha, Lake Country, Madison, and the greater Milwaukee area, property owners trust DeMark’s to bring back that clean, well-maintained appearance that makes a home or commercial building stand out.
Our Services
Window Cleaning
House Washing
Gutter Cleaning
See Clearly Again
A seamless process and a noticeable difference in every detail.
Getting pricing and hiring exterior cleaning should not feel complicated. You should not have to chase contractors, worry about damage, or manage the process.
Our trained and insured technicians handle every detail with professional equipment and safe cleaning methods designed to protect siding, roofing, landscaping, and concrete. You get visible results without the hassle.
Testimonials
What Our Clients Say About Us
With over 600+ 5 Star Google reviews.
Quality. Value. Peace of Mind.
Dirty Windows?
Get a fast, clear quote and experience the DeMark’s difference.
When your property needs attention, waiting should not add frustration. Our quoting process is straightforward and transparent so you can make a confident decision quickly.
Tell us about your property, receive clear pricing, and see how professional exterior cleaning can restore and elevate your space.
Effortless Experience
We handle every step with clear communication, professional service and reliable scheduling so you never have to worry about the details.
Professional Standards
Our trained technicians arrive prepared and treat your property with the respect and care it deserves.
Noticeable Results
Our cleaning delivers a visible difference, restoring your exterior and enhancing its overall appearance.
Professional. Affordable. Reliable.
Make Your Neighbor Jealous Because Your Home Looks So Good
Commercial Service Professionals
Keep Your Professional Image Maintained With Commercial Cleaning
For over 15 years, DeMark’s Window & Pressure Cleaning has provided premier interior and exterior cleaning services for commercial businesses and properties. The cleanliness and beauty of the exterior of your building are the first impressions to employees and those who visit. Our commitment to superior service, innovative approaches, and techniques allow you peace of mind that your commercial building is well maintained.
Our Service Areas
Get Ready For Amazing Results
What's Next?
GET YOUR QUOTE
One quick call to our world-class customer service team will answer your questions and help you solve your problems.
GET SCHEDULED
With scheduling made easy, you’ll be able to pick a time that works for you. Your time is valuable. We get it!
RELAX
Sit back and relax knowing that experts will be doing the work and you won't have to lift a finger.
FAQs for Window Cleaning & Pressure Washing
Yes. Our team is fully insured and licensed for both residential and commercial exterior cleaning
services throughout Southeastern Wisconsin, including Waukesha, Madison, and Milwaukee.
Proof of insurance is available upon request for added peace of mind.
Getting a quote is simple and fast. Submit your property details through our online form or call
directly for clear, upfront pricing on window cleaning, house washing, roof washing, gutter
cleaning, or pressure washing services. There are no hidden fees — just straightforward
information so you can make a confident decision.
No. Most exterior cleaning services can be completed while you are away. Clear communication
is provided before arrival and after completion so you know exactly what was done.
Professional exterior cleaning services are provided throughout Southeastern Wisconsin,
including Waukesha County, Lake Country, the Greater Milwaukee area, and Madison.
Routine maintenance helps protect property value and prevent buildup. Most Wisconsin
homeowners follow this general schedule:
● Window Cleaning: 1–2 times per year
● House Washing: Every 1–2 years
● Roof Washing: When algae or black streaks appear, typically every 3 years
● Gutter Cleaning: 1–2 times annually, depending on tree coverage