*The Angi rating for Window Cleaning companies in Greenwich, CT 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 Greenwich, CT 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 May 12, 2026
Serving Greenwich, CT and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"It was a fantastic experience. Kelly worked efficiently and did a superb job cleaning our windows and screens. We were extremely happy with the process and have already recommended Window Genie to a friend."
+6
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Offers commercial services
Customers say: Terrific value
"The crew was so hard working. My windows look beautiful. I highly recommend Ivis cleaning service."
Serving Greenwich, CT and surrounding areas
Approved
In business since 1994
Free estimates
Customers say: Quick response
"Kevin and his crew showed up up for us on a very last minute request. He was very helpful and willing to make it work when we were under a time crunch. We had called several companies hoping to get someone out, and he was one of the few who was willing to come out and actually perform the work, rather than just come for an estimate only. Furthermore, he was prompt in returning our initial phone call, and called us again before he planned to arrive at the house.
The crew was quick, efficient and I believe we were given a very fair price for the amount of windows- cleaned inside and out on a three story home.
Thanks to Kevin and his crew for making it work for us.
A company who caters to their clients is a real bonus these days, when so often it is the other way around.
"
+2
Serving Greenwich, CT and surrounding areas
Approved
In business since 1985
Free estimates
Customers say: Quick response
"I couldn't recommend this company more highly. Mark called me within minutes of my requesting a quote. He was exactly on time for the appointment to do the work. My windows have never, ever been so clean; they are practically invisible. I am so impressed and pleased. I plan to use him for carpet cleaning as well."
+7
Serving Greenwich, CT and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
"We highly recommend CAY Window Cleaners. They responded immediately to our request for a quote, scheduled us to have the work done immediately and did an excellent job ! We are very pleased and plan to have Carlos do our windows a few times throughout the year. Nothing like sparkling, clean windows to make ones home so beautiful !"
Serving Greenwich, CT and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Martin and his crew completed ten very involved projects for us today. We are very pleased with the work as it was done in a very professional manner. Martin indicated they could complete the jobs in one day and they accomplished this. The jobs involved power washing, painting, repair of towel bar, grouting, fixing hinges on a door, repair of garage door frame and cleaning of spindles on the porch. We told Martin that we were very happy with the results and would call him in the future for other projects that might be needed. Richard Huckstadt 5/19/26."
Serving Greenwich, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"I hired the cleaners and builders for one time maid service to help clean up after construction. They were efficient and affordable ..did a great job thank you so much!"
+1790
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"They did a fantastic job and went above and beyond to help me with some cleaning as well! I’d definitely hire them again!"
+32
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Great guy. Hard working and through top notch and would highly recommend 100%. My house looks so clean and bright. He even washed my outside windows. Would use again and highly recommend!! You will no be disappointed."
+9
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"The cleaning person was very experienced, details oriented and timely."
+2
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.
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