About Us
Our Promise is Simple
Treat every job like it is our own home!
Deliver professional exterior cleaning with the same care and attention we would expect for our
own property.
Since 2007, DeMark’s Window & Pressure Cleaning has served residential and commercial
clients throughout Madison, the Greater Milwaukee area, and Southeastern Wisconsin. What
began as a dedicated window cleaning company has grown into a full-service exterior cleaning
provider offering house washing, roof washing, gutter cleaning, and pressure washing.
From the beginning, the focus has been clear: use professional-grade equipment, proven
cleaning methods, and a highly trained team to deliver consistent, noticeable results. Ongoing training, refined systems, and continuous improvement ensure that every service is completed
safely, efficiently, and with attention to detail.
Founded by Nick DeMark in 2007, the company was built on the belief that professionalism,
accountability, and visible results create long-term customer trust. Those principles continue to guide every project today.
Our Commitment to Your Peace of Mind:
- Our team is fully insured.
- We proudly wear clean and identifiable uniforms.
- The equipment and methods are the best available in the industry.
- Offering automatic scheduling options.
- Our promise is to minimize disruption in your home or business.
- Finally, our references and reputation are impeccable. We back up our words with a 100% satisfaction guarantee!
