

Adam did such a great job! He was friendly, polite, tidy, and professional. He answered my questions about power washing which I am going to schedule for spring. I am so glad I decided to go with DeMark’s. A++

Your Professional Image Will Be Restored
Cleaning Yor Building With DeMark's
A building looks its best when its façade is free of stains, grime, and pollutants. Unclean buildings lose the respect of the neighbors in the neighborhood and become the eyesore that many look away from. Having your building professionally cleaned will not only bring the respect your business deserves but also bring appreciation for the high level of cleanliness in your business.
Let the experts at DeMark’s help restore and maintain your commercial property’s appearance. We have the expertise and equipment to properly clean a variety of building surfaces. When our cleaning professionals first arrive they will go through the process of assessing the building before cleaning it.
- We look at the building’s location, function, and geographic area to determine the level of cleaning effort necessary to achieve the desired appearance.
- Determine the equipment needed for the cleaning process.
- Clean your building and any mess that is left after the cleaning is finished.
Testimonials
What Our Clients Say About Us
5/5
With over 200+ 5 Star Google reviews.
Quality. Value. Peace of Mind.
Howard Duncan
in the last week
Our house was starting to look old and run down. After talking with Nick he knew just what our home needed. From working with his...Read More »
Nate Cunniff
a month ago
I contracted De Marks for their snow removal services for the past winter season. They were always prompt and efficient. The pictures they sent showing...Read More »
Molly Herzog
a month ago
We’ve never had our windows cleaned professionally previously and it was so worth it! My house feels so much brighter! Ivan and Julio were fast,...Read More »
kelli zimmerman
a month ago
Dan and Elijah were amazing! I am still staring at our windows throughout our house. These 2 gentlemen were professional, kind and went above and...Read More »
Martha Berg
7 months ago
2nd time out...The guys were on time, did a fantastic job! They were very professional...My windows are sparkling!! I would highly recommend them.
Our Professionals Will Maintain Your Image
Why Is It Important For DeMark's To Clean My Building?
Your commercial building deserves to be perfectly clean and our professionals are here to help.
At DeMark’s we believe that your business should speak to the community through its cleanliness and professional image. The cleanliness of your building should speak to the neighbors in your community and those who wish to do business with you. A fresh clean business will make the image of your business more positive and express positivity to the employees and potential clients.
The importance of having DeMark’s clean your building:
- Provides the aesthetic appearance you want to project to your customers and employees.
- Cleaning exposes areas of the façade that may need to be patched, repaired, or resealed.
- Removes damaging and dangerous pollutants that can accelerate the deterioration of your façade.


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 Makes DeMark's Different?
- Expertise and Experience
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.
- Professional and Friendly Staff
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.
- Fully Equipped
We use advanced technology cleaning equipment and products for the best results when cleaning your exterior areas.
- Top-of-the-Line Products
Your home will be cleaned with the best cleaning products in the market and will shine with beauty after our professional cleaning process.


Don't Ignore Cleaning Your Property
The Risk of Not Cleaning Your Commercial Property
Does your commercial property have dirt and grime buildup? If dirt has built up on your building, it is in need of proper professional cleaning. Dirt and grime on a building can cause a building to lose its curb appeal along with many other things.
What is the risk of not having my building professionally cleaned?
- More Damage – More damage could be done to your building if it is left unclean. The foundation and the structure of your building will continue to be at risk if you avoid getting it professionally cleaned.
- Value of Your Building Will Decrease – If you plan on selling your building in the future, the value of it could decrease if it is unclean.
- Unsafe – Your building could be deemed unsafe because of the dirt, grime, and other contaminants that have built up on the building. The uncleanliness of your commercial property will bring into question if employees are able to work in the building because of safety concerns.

Professional. Affordable. Reliable.
Make Your Neighbor Jealous Because Your Home Looks So Good
See the Success In Your Professional Image
The Success of a Pressure Washed Building
You will see the glory of having a clean building come back once your building is professionally cleaned.
The feeling of success will be a part of your business once it is pressure washed. The pride of working in your building will be the center of what makes your employees work for you and clients will feel more comfortable doing business with you. A professionally cleaned business will show the seriousness and care in what your image says to the community.
DeMark’s Window & Pressure Cleaning professionals will dedicate their time to providing you with superior cleaning and work to bring you satisfaction. We will strive to keep your image professional and to bring the joy of having a safe and clean building back to life. If you want your commercial property cleaned, call us today.


Our Service Areas
Get Ready For Amazing Results
Washington County
- Colgate
- Hubertus
- Germantown
- Hartford
- Richfield
Ozaukee County
- Cedarburg
- Grafton
- Mequon
Milwaukee County
- Franklin
- Fox Point
- Milwaukee
- Greendale
Madison
- McFarland
- Madison
- Middleton
- Stoughton
- Sun Prairie
- Verona
What's Next?
1
GET YOUR QUOTE
One quick call to our world-class customer service team will answer your questions and help you solve your problems.
2
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!
3
RELAX
Sit back and relax knowing that experts will be doing the work and you won't have to lift a finger.