Accurate Window Cleaners
“The windows and screens are so clean, streak free inside and out.”
Best Window Cleaners in London, ON
18 companies listed · all 18 in London · 9 open 24/7 · 14 open weekends · 17 rated 4.5+
Data verified October 21, 2026
Central Window and Eaves Cleaning
“Christian and Ryder did an amazing job cleaning my windows and power washing my deck and siding.”
Celtic Property Cleaning
“We are 100% Satisfied with the Cleaning, Staining & Sealing on our Deck & Privacy Fences.”
Jacob's Crystal Clear Window Cleaning
“They were done in a timely fashion from booking appt to getting job completed.”
Ontario Shines Property Cleaning
“Super friendly and Connor the installer is a great person and so polite!!!”
Southwest Window Cleaning
“As always, the SW Window Cleaning crew were efficent, friendly and competent.”
Listed for homeowners in and around London, ON, these 18 companies clean windows. Spring fills up fast here, so ask which weeks are still open and whether taking down and washing storm windows and screens is part of the price or an extra.
Area overview: London, ON
All 18 companies we list here are in London itself. We have 21 companies in London on file; this page shows the highest-rated 18. The companies on this page are rated from 4.0 to 5.0 across 2,029 reviews; 12 have 50 or more reviews and 17 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (95%), quality (80%) and responsiveness (77%). The topics that come up most in reviews of the companies on this page are "price", "efficient" and "estimates". 9 are open around the clock; 14 are open on Saturdays and 11 on Sundays. The services the companies on this page list most often on their websites are gutter cleaning (3), gutter guards (2), pressure washing (2) and window cleaning (2). 1 shows a licence on its website. 2 have ten or more years of experience, the longest 16 years. 9 offer emergency call-outs; 13 give free estimates; 4 are family- or locally-owned and 1 lists coupons or special offers. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
How many window cleaners are listed for London?
This page shows 18 listings for London. Because the work is sold as a repeat visit, ask each one which part of town it already covers and on what cycle. Slotting into an existing route usually costs less than a company driving out for a single house.
Power Wash Master
“Excellent service from a great representative who took great care in doing a good job and extras which he did not charge.”
Gutter Guys Plus
“I didn't think it could ever look as great as it does but Gutter Guys went above and beyond jacking my roof, replacing boards and paying attention to small details to give me a really exceptional finished product.”
All Good Property Cleaning
“Very pleased with the exterior house refresh from Tyler at All Good Property Cleaning today.”
We Clean Pros
“On-time, hard working, attention to details, efficient, very professional and nice: Muna and Monica were fabulous!”
Blue Diamond Window Cleaning
“They removed ivy as requested, did a great job cleaning the gutters, then cleaned up everything before departing”
A Plus Building Maintenance
“I have found them all to be caring and respectful in all of our dealings providing quality service at all times.”
Princess Cleaning
“He came out viewed the property and had his team cleaning in no time.”
Miral General Cleaning Inc.
“Great job it was very clean job.”
Altitude Window Cleaning Inc.
“I would highly recommend this extremely professional bussiness as a owner of a small bussiness myself~i respect the quality & high standards of success and excellence Altitude achieves in raising the bar of standards for the rest of us.”
City Window Cleaners
“They do a fantastic job and I have always found them to be courteous and professional.”
Berts Window Cleaning
Squeeky Kleen Window Wash
Why these companies made our list
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