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262-894-2057

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Get in touch with us

262-894-2057

Get a free quote
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Clear Windows. Stronger Business Presence.

Expert Window Cleaning for Office & Retail

Call: 262-894-2057 Or
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Very satisfied with the work DeMark's did for us: they cleaned the windows, the sills, and screens and did a really great job. The young men who came to work were thorough and hardworking. They were also very pleasant and professional. Everything looks great & we will hire DeMark's to do our windows every year.

Donna W.

Create a Clean, Professional First Impression
Streak-free commercial windows immediately improve how customers perceive your business. Clean storefront glass enhances visibility, increases natural light, and reflects professionalism before customers walk through the door.
Commercial window cleaning services are available for retail storefronts, office buildings, multi-story properties, and multi-tenant facilities throughout Wisconsin.

Testimonials

What Our Clients Say About Us

Rated 5 out of 5

With over 600+ 5 Star Google reviews.

Quality. Value. Peace of Mind.

Call: 262-894-2057 Or
Get A Free Quote

Flexible Scheduling That Minimizes Disruption

Window cleaning can be scheduled before opening, after closing, or during low-traffic periods to avoid interrupting operations. Recurring service plans help businesses maintain a consistent appearance without having to manage repeated scheduling.

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.

brick building with Demarks professional cleaning windows

Are Your Windows Dirty?

Safe, Compliant, and Insured Service
Commercial window cleaning requires proper safety procedures, equipment, and insurance coverage. Professional service ensures compliance with building requirements while delivering reliable, repeatable results across single or multiple locations.

Keep Your Building Safe

Year-Round Brilliance

We pride ourselves on offering year-round window cleaning solutions that defy the constraints of weather. No matter the temperatures or the elements, our highly skilled technicians are equipped with the latest tools and expertise to ensure your windows shine brilliantly in every season. 

Our team can get there for you and your business for any inspection clean, grand opening or other special events, no matter the Wisconsin temperatures!
Commercial Pressure Washing

FAQs for Commercial Window Cleaning

Yes, but only up to 5 stories. Commercial window cleaning services are available for retail storefronts, office buildings, multi-story properties, and large commercial facilities using proper safety protocols and professional equipment.
Yes. Service can be scheduled before opening, after closing, or during low-traffic periods to minimize disruption to customers and employees. Communicate the needs of your properties with our team to minimize business disruption.
Yes. Many businesses choose weekly, bi-weekly, or monthly maintenance programs to maintain a consistent professional appearance year-round.
Yes. Full commercial liability coverage is maintained, and certificates of insurance can be provided upon request.

Our Service Areas

Get Ready For Amazing Results

Waukesha County

Washington County

  • Colgate
  • Hubertus
  • Germantown
  • Hartford
  • Richfield

Ozaukee County

  • Cedarburg
  • Grafton
  • Mequon

Milwaukee County

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.
Call: 262-894-2057 Or
Get A Free Quote