Window Cleaning, Gutter Cleaning, Concrete Cleaning, House & Roof Washing

Top Rated, High-Class Exterior Cleaning Services

white house with black shudders and bushes before roof cleaning

Amazing job!!! My windows are sparkling!!! The young man who cleaned our windows was on time, professional, and very pleasant. He gave great attention to his work! I would highly recommend this firm. I would like to add: when I called Tasha got someone out to quote our needs immediately and we received that quote immediately… excellent staff from first call to job done!

Margo E.
Demarks profession using pink solution to clean side of white house

Make Your Home Look Amazing Again

Cleaning Your Home to Perfection With DeMark's Window Cleaning and Pressure Washing

At DeMark’s we pride ourselves on providing the best exterior cleaning service to you. We strive for five-star service with our pressure washing, roof washing, and gutter cleaning services for our residential and commercial clients. Our innovative and cutting-edge technologies and products have produced superior results for over 15 years.

DeMark’s fully insured team will bring your home or business back to life with our full complement of exterior cleaning services. DeMark’s is your #1 window and pressure cleaning service serving Madison, and the greater Milwaukee areas.

Our Services

Window Cleaning

Get a streak-free shine and enhanced view with sparkling clean windows!

House Washing

Expert house washing to remove black streaks, green algae and other dirt and debris from the outside of your home.

Roof Wash

Dirty roof? Expert house washing will remove black streaks and restore your roof to a like-new look.

Dirty Roof?

Get the Dirt Off Of Your Roof With DeMark's

Your roof will look new again with expert roof washing service.
In Wisconsin’s humid climate, algae, mold, and more can grow on your roof causing damage, like shingle rot. The eyesore of a dirty roof combined with the damaged shingles can become more expensive than it needs to be. It is important to clean your roof and our DeMark’s Window & Pressure Cleaning professionals are here to help with getting your roof clean and healthy again.
Cleaning your roof as regular maintenance can help it last longer against the elements, as well as save your wallet by avoiding premature repair and replacement. Once you make the decision to clean your roof, you are making the decision to maintain the beauty and structure of your home. Give us a call today to have your roof restored and protected with the best roof wash service in Milwaukee and Madison.
beige house with red shudders

Satisfaction Guaranteed

We guarantee satisfaction with our hard work and professionalism.

Hassle-free customer service

Our customer service representatives are here for you.

Professional and Friendly Staff

We strive to be professional and friendly with the best service.


What Our Clients Say About Us


With over 200+ 5 Star Google reviews.

Quality. Value. Peace of Mind.

Demarks cleaning professional cleaning windows on brown home
professional window cleaner

Dirty Windows?

Make Your Windows Sparkle Again

Dirty windows can make your home look unappealing. Dust can take away the shine and your reflection will be one that is hard to find. Unclean windows can also block the view of what beauty lies outside of your home. Without them being properly cleaned, your windows will build up dust and dirt.

If you don’t have the time to thoroughly clean your windows, our DeMark’s Window & Pressure Cleaning professionals can clean them for you and bring the sparkle back. Our window cleaning process will bring you satisfaction and restore the streak-free shine that you might have forgotten exists.

What Makes DeMark's Different?

You will receive experience and knowledge when you choose to have your exterior areas cleaned. We take pride in providing knowledge about our process with our work.

Professionalism and friendliness are what drives us to be the best. We work hard to show our customers we care about their home and their time.

We use advanced technology cleaning equipment and products for the best results when cleaning your exterior areas. 

Your home will be cleaned with the best cleaning products in the market and will shine with beauty after our professional cleaning process.


Professional. Affordable. Reliable.

Make Your Neighbor Jealous Because Your Home Looks So Good

Commercial Service Professionals

Keep Your Professional Image Maintained With Commercial Cleaning

Your employees and business partners will love the cleanliness of your building after a professional 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.

Your business will beautifully stand out with a thorough and professional cleaning from DeMark’s Window & Pressure Cleaning. Once our professionals arrive, you will be able to go about your day, as our highly trained and skilled technicians are fully insured and trained on commercial safety standards working within the ANSI I‑14 Window Cleaners Safety Standards. Our high-rise building technicians are trained according to ANSI/OSHAIWCA I‑14.1 safety standards in rigging, fall protection, and rope access. So, if you are ready for your commercial property to be cleaned, contact us today.
Demarks cleaning professional cleaning windows on brown home

Our Service Areas

Get Ready For Amazing Results

Waukesha County

Washington County

Ozaukee County

Milwaukee County


What's Next?



One quick call to our world-class customer service team will answer your questions and help you solve your problems.



With scheduling made easy, you’ll be able to pick a time that works for you. Your time is valuable. We get it!



Sit back and relax knowing that experts will be doing the work and you won't have to lift a finger.