*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 July 31, 2025
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 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
"The entire process went great from start to finish. The clean windows makes a big difference!"
+28
Serving Thornton, CO and surrounding areas
Approved
In business since 2023
Free estimates
Credit card accepted
"Aaron cleaned all of our windows, and he has been the most thorough window cleaner I've ever hired. His attention to detail was much appreciated. Our windows have never been so clean, screens and tracks alike! In addition to providing excellent work, Aaron is a pleasure to be around. He's so friendly and communicative. He's now my go-to for all window cleanings. If you're looking for a window cleaner, he's your guy. You won't be disappointed."
+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
"They cleaned a large, high, hard to reach window which needed removal of a large stained glass piece. Other windows sparkling clean too. We thought they missed cleaning some debris from exterior window tracks. Otherwise they were courteous and finished our two story house in two hours."
+20
Serving Thornton, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Offers commercial services
"Braeden did an absolutely amazing job cleaning the windows of our home inside and out. Very respectful and professional from the beginning. 10/10 would and will hire again."
Serving Thornton, CO and surrounding areas
Approved
In business since 1999
Free estimates
Small jobs welcome
"On time, efficient , friendly and paid attention to detail."
Serving Thornton, CO and surrounding areas
Approved
In business since 1984
Free estimates
Customers say: Quality work
"Jessie was very polite and punctual. He quickly cleaned the inside windows, screens and sills. He then moved outside to clean the other side. It is like living in a brand new house! I will definitely call him again!"
Serving Thornton, CO and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Remember the days when you could trust a contractor to do an amazing job, You didn't need an estimate because you knew they would never rip you off. Their work and attitude were always exceptional. Well, the days of old are back with Spyglass. He is on time, first class, fabulous work and trustworthy. He does our window cleanering, gutters and special projects we need as elderly clients."
In many cases, yes, hiring a window cleaner is worth the investment. Having your windows deep cleaned not only helps keep your windows looking like new, but it can also reduce the risk of damage and accelerated wear to the window frames and inner components. It also improves your home’s energy-efficiency by keeping window insulation and weatherstripping in good working order. Annual cleanings can also help identify problems with your windows early that could otherwise lead to leaks and expensive water damage over time.
For a standard 1,000-square-foot home, you should expect your window cleaner to take between 1 and 3 hours to clean all of your windows. Of course, the size of your home and the number and size of the windows you have will play a role in the timeline. Certain styles of windows—like picture windows, which have no moving parts—also take less time to clean.
Yes, you should plan on being home when a window cleaner is cleaning your windows. The professional will clean both sides of the glass and will likely disassemble parts of your windows from the inside to clean and inspect the inner components, including the balances and weatherstripping. Much of this work requires interior access to your home, which means someone will need to be home to provide access to the window cleaner.
Window washing usually refers to cleaning dirt and other debris off of the exterior of your windows, while window cleaning is a much more involved process that addresses the outside and inside of the glass, as well as the interior components. Window washing is more to improve the aesthetic of your windows, while window cleaning can improve performance, reduce the risk of damage over time, and even improve your home’s energy efficiency.
The average cost to have your windows cleaned is around $220 for a standard-sized home, or around $10 per window. This pricing will vary quite a lot, depending on how many windows you have, how accessible those windows are, the size of the windows, and more. Most homeowners pay between $150 and $300 to have all of the windows on their home cleaned thoroughly by a professional.
From average costs to expert advice, get all the answers you need to get your job done.
Discover the average window cleaning cost, key price factors, and tips to save money. Get transparent estimates to keep your windows sparkling and your budget on track.
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When you want to clean windows more thoroughly and without streaks, our tips for cleaning windows will help you power through this chore in less time.
Cleaning a windowsill is a low-lift project that will restore the sparkle to the eyes of your home. Learn how to clean your windowsill in four simple steps.
Not sure who to hire for window cleaning? Learn which window cleaning services fit your home, plus pro tips to choose confidently.
