Business Details
19 Years
experience
Emergency
services
Professional Exterior Cleaning Services
DeMark's Window & Pressure Cleaning has been serving residential and commercial clients in Madison, the Greater Milwaukee Area, and SE Wisconsin since 2007. Founded by Nick DeMark, our team combines advanced technology with industry-leading safety standards to deliver superior exterior cleaning results. We specialize in window cleaning, pressure washing, gutter cleaning, roof washing, and winter snow removal services, using top-of-the-line equipment and eco-friendly products.Our fully insured team prioritizes customer satisfaction through professional service, guaranteed results, and hassle-free scheduling. With over 15 years of experience and 200+ 5-star Google reviews, we maintain a reputation for excellence through consistent training, quality control, and a commitment to minimizing disruption during service delivery.
Services
Window Cleaning
Pressure Washing
Gutter Cleaning
Roof Washing
Snow Removal
House Washing
Commercial Cleaning
Concrete Cleaning
Ice Dam Removal
Soft Washing
Details
- Year established: 2007
Highlights and features
- 15+ years of exterior cleaning expertise in SE Wisconsin
- Fully insured team with ANSI safety-certified technicians
- Uses advanced pure water window cleaning technology
- Guarantees 100% customer satisfaction
- Maintains 200+ 5-star Google reviews
What people say
Sparkling clean windows
Professional and kind
Outstanding work
Fair pricing
Thorough cleaning
Services
Window Cleaning
Professional window cleaning service removes dirt and grime for streak-free clarity. Our technicians use pure water technology and ANSI-certified safety equipment to clean hard-to-reach windows. Commercial clients benefit from maintaining professional building appearances while residential customers enjoy enhanced curb appeal and natural light transmission.
Pressure Washing
Exterior surface restoration using adjustable pressure techniques. Removes algae, mold, and urban grime from concrete, brick, and siding while preserving material integrity. Commercial clients maintain property value while homeowners protect their investment against weather-related deterioration.
Roof Washing
Low-pressure roof cleaning eliminates algae and debris without voiding warranties. Our EPA-compliant solutions kill root organic growth to prevent regrowth. Protects asphalt shingles while extending roof lifespan through preventive maintenance.
Gutter Cleaning
Professional gutter system cleaning prevents water damage to foundations and landscaping. Our technicians remove debris buildup and check for proper drainage function. Prevents ice dam formation in winter and pest infestations year-round.
Snow Removal
Commercial snow and ice management maintains safe access during Wisconsin winters. Uses specialized equipment for efficient snow removal while protecting surfaces from damage. Prevents liability risks from slip-and-fall hazards on business properties.
People
Nick DeMark
President
Nick DeMark founded the company in 2007 with a vision to revolutionize exterior cleaning services. Under his leadership, the business has grown while maintaining founding principles of quality equipment, continuous staff training, and customer-centric service.
Questions
What areas do you service?
We serve Madison, Milwaukee, Waukesha County, Washington County, and Ozaukee County in Wisconsin.
Do you offer commercial services?
Yes, we provide exterior cleaning for commercial properties including window cleaning and pressure washing.
Are your technicians trained?
Our team follows ANSI I14 safety standards with specialized training for high-rise buildings.
What cleaning methods do you use?
We use pure water technology, low-pressure washing, and eco-friendly solutions for effective cleaning.
Do you guarantee satisfaction?
We offer a 100% satisfaction guarantee on all our exterior cleaning services.
How can I schedule service?
Call 262-894-2057 or request a free quote through our website for prompt scheduling.
Videos
Reviews (6)
Pasquale F.
Nov 02, 2021
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Workers that came onsite were nice, but value of the service to the cost is not worth it at all. Definitely better gutter cleaning companies out there, and will never do business with this company again, nor recommend to colleagues or friends.
Evonne W.
Oct 14, 2021
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Needed windows cleaned on three story Tudor with leaded glass throughout. Greg, Ivan and Julio arrived at 830 and worked all day and the house looks great. They were meticulous and thorough and did a great job. I'll hire them again!
Lynne S.
May 12, 2020
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BEWARE. The facts: Received an unsolicited email and a text from Demark's Building Maintenance Solutions (Nick Demark) stating that my quote is ready for me and to click the link to open. I NEVER contacted this company and my contact information Nick used is highly private and safeguarded. Blocked and reported the phishing scam/spam.
Deb B.
Jun 20, 2019
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After providing my address and contact information, I never heard back from this company. My request was for an estimate for mine and two neighbor's window washing. Very disappointed and would not recommend this company due to the lack of follow through.
Tony C.
Jun 14, 2019
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A great company! It is not often that you are very pleased with a company that does work for you. I just had DeMark's clean my roof and I am very pleased. The workers were clean and considerate of my house and gardens. I will use them again. I also plan to use them for window cleaning.
Eugene R.
Nov 30, 2016
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I had Demarks come over to my 2 story home to clean our downspouts which were clogged. Two Demarks gentlemen came by on schedule, were very professional and cleaned out some heavily plugged gutters. They had proper equipment and were careful around our shrubs. I would definitely use them again.
