4.8 
501 *The Angi rating for Window Cleaning companies in Thornton, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Cleaning needs.
*The HomeAdvisor rating for Window Cleaning companies in Thornton, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Cleaning needs.
Last update on September 10, 2026
Serving Thornton, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Small jobs welcome
"Exterior windows were cleaned ... excellent job."
+68
Serving Thornton, CO and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"Excellent experience from start to finish! The team was professional, friendly, and arrived on time. They did an amazing job cleaning our windows—they're absolutely sparkling, and I didn't realize how much brighter the house would look afterward. They were careful, efficient, and left everything clean when they finished. I highly recommend this company to anyone looking for quality window cleaning and outstanding customer service. I'll definitely be using them again!"
+10
Serving Thornton, CO and surrounding areas
Approved
In business since 1999
Free estimates
Small jobs welcome
"They were prompt, professional and did a great job. My windows sparkle"
Serving Thornton, CO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Windows look great. Ben took his time and did an excellent job. We'll be using his services next year!"
Serving Thornton, CO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Cleaned inside and outside of windows as well as storm doors. Did an excellent job and even came back a second day to finish the work. Windows look great and communication from the team was great!"
+28
Serving Thornton, CO and surrounding areas
Approved
In business since 2023
Free estimates
Credit card accepted
"Aaron did an excellent job washing inside and outside of windows. He cleaned the tracks for the windows and removed and washed the screens I would use him again!"
+14
Serving Thornton, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Free estimates
Emergency services offered
"Windows are so clean that birds started flying into them. A+ job (sorry birds)"
Serving Thornton, CO and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"The team was very courteous, and professional. They did a very good job on the windows (I hate cleaning glass) so I really appreciate when someone else is doing the work. Their pricing is also competitive and fair. I will be hiring them again when I need windows cleaned."
+20
Serving Thornton, CO and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"John was on time and efficient. He cleaned the gutters and washed the outside of my windows. I am very pleased with his work."
Serving Thornton, CO and surrounding areas
Approved
In business since 2010
Free estimates
Customers say: True professional
"Tyler did a fantastic job on all of our windows! They look so much better than they ever have before! We would recommend him to anyone who would like crystal clear windows!"
+13
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