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Robert Egan climbing a ladder to upper story window.

Window King is a Family Run,

Decades Old, Colorado Business.

Contact us now for a Free No-Obligation Estimate

Office: (303) 796-0819

Cell: (303) 668-8459

I’m Robert Egan, owner of Window King. You can expect us at Window King to treat your home with care. It’s that care that sets our window washing and cleaning business apart from most others in this field. I started out cleaning windows in Montana, where I developed my own formulations and techniques, including an environmentally friendly cleaning solution that eliminates oils, but — unlike other de-greasers — will not damage the surface of tinted glass. I use a trick of the hand which prevents stray water from dripping out of the mop case. I’ve been in Denver since the mid ’90s, when I opened my window washing and cleaning business. I am proud to say that I’ve maintained many of the first clients I serviced back then — even those that wandered off price shopping at some point. Customers keep coming back to Window King because of the superior quality of service. I service the entire Denver metro area including Littleton, Highlands Ranch, Roxborough Park, Lakewood, Centennial, Aurora, Englewood, Greenwood Village, Castle Rock, Parker, Castle Pines, Washington Park, Denver, Cherry Creek, Wheatridge, Thornton, Westminster, Arvada, Boulder, Lafayette and Longmont.


  • Windows Thoroughly Cleaned and Washed, Inside and Outside
  • Clean Sliding Door Tracks and Window Tracks
  • Screen Removal, Cleaning & Re-Installation
  • Minor Water Spot and Debris Removal
  • If it rains within 24 hours following your cleaning we will return to take care of any run off.
  • Also, Receive $20 off of your Third Cleaning in any Year


  • Clean Mirrors, Chandeliers, and Other Light Fixtures
  • Clean Skylights (inside and outside)
  • Clean Awning (metal or cloth)
  • Heavy Water Spot and Debris Removal
  • Hand Wash and Dry All Screens


  • Pressure Wash Concrete, Brick, and Other Exterior Surfaces
  • Gutter Cleaning
  • Solar Panel Cleaning


We use a environmentally friendly commercial window cleaning soap that is generally unavailable to the public. We also use gentle lint free towels which allow us to completely wash, clean and dry each window and mirror. At your request we’ll take off our shoes or wear blue booties. We use drop cloths, when necessary, to protect your furniture and floors. My ladders are padded so that they won’t scratch any part of your home. There is simply no substitute for well-equipped, experienced, and professional service.

“Thank you for the splendid job you did on our house. Our windows really sparkle!”

– Barbara Burke

“Our windows look great! Window King is the best!”

– Ruth Bennis

“My windows sparkle and shine each time Window King comes to my house.”

– Paulette Dragul

“I can always count on Window King to get the job done in a professional manner.”

– Tony Sano

“Window King is an excellent window washing service. They are friendly and helpful.”

– Gordon Butz

“I really appreciate Window King; they go the extra mile and really make my window look nice.”

– Gail Sadler

“I like the extra details Window King performs for me. It makes all the difference.”

– Ruth Power

“Window King does a very good job in the cleaning of my storm windows. I like the friendly service too!”

– Cheryl Valentine

“I have some hard to reach places. Robert is so agile and can manage that ladder like a pro.”

– Gloria Enger

“I have been using Window King for along time, I appreciate their phones calls and how flexible their schedule is.”

– Mary Lou Malette