Eh! Maids
“Very easy to book online and they came right on time for the appointment.”
Best Commercial & Office Cleaning near Dundas, ON
None of these companies is based in Dundas; they work from towns including Toronto, Burlington and Oakville.
24 companies listed · 6 open 24/7 · 14 open weekends · 23 rated 4.5+
Data verified October 16, 2026
Six Stars Cleanness
“Peter and Romy not only delivered excellent customer service and but also provided fast and efficient service at reasonable prices will definitely use the services again and will be highly recommended in the near future.”
MMJ Hotel Housekeeping and Janitorial Services Inc
“I highly recommend MMJ Hotel Housekeeping and Janitorial Services Inc for anyone looking for excellent cleaning services.”
Group 6twelve
“They've been professional, flexible and, of course, very good at keeping our offices clean and comfortable.”
GQ Maintenance Services
“I recently used the cleaning services provided by GQ Maintenance, and I couldn't be more satisfied with the results.”
Ilwad Cleaning
“I really liked the service thanks 😊 …”
Listed for businesses in and around Dundas, ON, these 24 companies hold commercial cleaning contracts. Ask each one for a site walk before it quotes, since square footage alone says nothing about the entrance matting, the washroom count or the winter mess that drives the real workload.
Area overview: Dundas, ON
The 24 companies on this page are rated from 4.4 to 5.0 across 1,279 reviews; 11 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 (87%), quality (86%) and value (68%). The topics that come up most in reviews of the companies on this page are "communication" and "efficient". 6 are open around the clock; 14 are open on Saturdays and 12 on Sundays. The services the companies on this page list most often on their websites are commercial cleaning (2), janitorial services (2), office cleaning (2), post construction cleaning (2) and window cleaning services (2). 1 lists staff certifications (EPA). 8 have ten or more years of experience, the longest 19 years. 7 offer emergency call-outs; 10 give free estimates; 5 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 22 of the companies on this page; 17 publish a contact page; 18 list a public email and 3 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.
Do any of these companies clean around the clock?
Around-the-clock availability is stated by 6 of the 24 commercial cleaning companies here. In this trade that usually means an emergency call out for a flood, a burst pipe or a biohazard rather than a crew standing by, so ask what the after-hours number actually reaches.
Toronto Kitchen Exhaust Hood Cleaning
“Team was very professional and got the intense cleaning of exhaust hood cleaning as requested.”
Clean Green Canada
Famcap Cleaning Services Inc.
Flores Clean Commercial Cleaning Services Inc
“Amazing manager, out of this world service definitely recommend for anyone in need 😁.”
Sierra Alpha Facility Services
“I've been a client for a few years now and I have no complaints!”
Twin City Commercial Cleaners
“They always do a great job cleaning our office and have fair prices.”
Gpower Cleaning Services
“I've been in Canada for over 2 years now and GP Cleaning has been the most professional experience with a cleaner I've had MY WHOLE LIFE!!”
Maid Clean Services Inc.
“A few weeks ago we were getting ready for a party at the house, and Dyana did such a great job that everyone who came commented on how clean and nice the house looked.”
Canadian Cleaning Services
“We have had many other cleaning companies but this one provides the best service in town.”
Cleanzone Ltd
“Yesterday Kamila sent 2 ladies to clean the basement apartment of my Mississauga house and they did I a incredible job.”
M&J Cleaning Services Inc.
“My parents were both thrilled with how clean their home is after the service.”
The Cleaning Room
“Laura went above and beyond to make sure the house was spotless.”
Maid Simply Inc.
“I would highly recommend this team to anyone looking for a quality cleaning service!”
Neon Cleaners Inc
“They do an amazing job, are very reliable and detail oriented, and they are incredibly efficient without compromising on the quality of service.”
Clearcare Facility Services
“Staff are very friendly and are constantly hard at work to keep our building clean.”
C&R Janitorial Services Corp
“They consistently maintain the cleanliness of our workplace.”
Maid
“They cleaned my mom's condo in order to sell it and it was an impeccable job and quickly done too.”
Icleaners Commercial Cleaning Services Inc.
“I have to say that iCleaners has an amazing and professional cleaning team.”
Why these companies made our list
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