EZ Window Cleaning
“From the first time we spoke to Vlad we knew we were in good hands - the team showed up and cleaned the interior and exterior windows of our home - sparkling clean - can't thank you enough ….”
Best Window Cleaners near Thornhill, ON
3 of these companies are based in Thornhill; the others serve Thornhill from towns including Toronto, Etobicoke and Mississauga.
4 open 24/7 · 15 open weekends · 23 rated 4.5+
Data verified October 18, 2026
Window Masters
“Checked with us that all was good with their work before they left, and they did a couple of inner panes that were missed on the first pass to make sure we were happy.”
Window Caulking Toronto Experts
“They recaulked all my windows and sealed them perfectly.”
Skypole Window Cleaning
“Thanks for the expertise and care in my comercial buildings, the window cleaning was perfect!”
Skyshine Window Cleaning & Gutter Cleaning
“Very happy with the window cleaning and the workers were very friendly and professional.”
The Fresh Cleaning
“Very happy with the service, our cleaning lady really did a fantastic job, above my expectations!”
Listed for homeowners in and around Thornhill, ON, these 24 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: Thornhill, ON
The 24 companies on this page are rated from 4.4 to 5.0 across 3,187 reviews; 21 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (92%), quality (85%) and responsiveness (73%). The topics that come up most in reviews of the companies on this page are "price", "communication" and "efficient". 4 are open around the clock and 15 are open on weekends. The services the companies on this page list most often on their websites are commercial window cleaning (6), eavestrough cleaning (6), window cleaning (6), residential window cleaning (5) and power washing (4). Domain records put 2 websites of the companies on this page at ten or more years old; the oldest dates from 2004. 5 offer emergency call-outs; 17 give free estimates; 2 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for 23 of the companies on this page; 18 publish a contact page; 21 list a public email and 5 take bookings online. 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 Thornhill?
This page shows 24 listings for Thornhill. 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.
Shine Window and Eaves Cleaning
“We will continue to use them at our home in Lytton Park for as long as live here!”
Diamond Shine Window & Gutter Cleaning
“My windows had alot of gunk buildup from the builder and now they look like new!”
Eco Scrubbed Residential and Commercial Cleaners Markham
“Hiring a great cleaner is important when deciding who to let into your space, and you can always trust Tomas and his team whether you're a professional wanting a deep one-time clean or a homeowner looking to get a regular recurring clean.”
Seeyonclean East End (Gta)
“Awesome service and the prices are good compare to others.”
DT Cleaning Window & Eaves Cleaning
“Dimitri arrived promptly and did a very professional job… he even offered some tips to prevent further problems!”
Ecobc
“Windows and balconies were cleaned quickly and safely while using eco-friendly products.”
New Century Maids
“They are on time, do their job and everything is done correctly.”
Metro Mobile Wash
“Great price for the amount of work put into my truck getting off all the dirty elements.”
Prolific Cleaning
“Ossama & Jeff are the best people who came to clean my couches and carpet with the short notice.”
Toronto Clear View Window Cleaning Inc.
“Excellent eaves and window cleaning services coupled with great care and attention.”
MCA Group
“Very professional, and great to communicate with.”
Royalview Window Cleaning
“Royal view window cleaning was very professional and punctual with timing.”
H Breiter Window Cleaning Ltd.
“Your guys were pleasant, they did a good job and I did not have even one complaint.”
Top Shelf Painting & Staining Inc.
“They had a very professional approach to how they conduct business, excellent communication, and paid us promptly.”
Ibex Window Cleaning
“The team showed up exactly on time and did a fabulous job.”
Suds Window and Eaves Cleaning
“I am rarely so happy with work that I have had done in my home.”
Sunset Window Cleaning
“Our experience with the Company was great!”
Elevate Window Cleaning
“He was conscientious and pleasant to deal with and offered good value.”
Why these companies made our list
What customers say about companies near Thornhill
- “Very professional service. Came on time as promised and did an excellent job.” — customer of EZ Window Cleaning
- “Chris was pleasant, personable and very professional. He did a great job and I would recommend him to friends.” — customer of Elevate Window Cleaning
- “Thoroughly professional and easy to deal with. No hesitation in recommending Martin and his team to others.” — customer of Ibex Window Cleaning
- “Great service, prompt and professional. Response time was fast and booking happened right away.” — customer of Royalview Window Cleaning
- “Chris did an incredible and timely job. He was super friendly and a pleasure to work with.” — customer of Elevate Window Cleaning
Excerpts from public reviews of the companies listed on this page.
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