Golden Maids
“As a bonus, we also got a discount for the next cleaning –> just another reason to call these guys again before holidays :)”
Best House Cleaning Services in Thornhill, ON
24 companies listed · 6 in Thornhill · 14 open 24/7 · 20 open weekends · all 24 rated 4.5+
Data verified October 18, 2026
Gtamegacleaning
“I used GTA Mega Cleaning services for the first time for deep cleaning and they did an amazing job.”
Condo Cleaning Services Toronto
“The team was professional, courteous, and responsive to all of my inquiries.”
Marion Jarvie
“Lots of plants and colorful flowers.”
Quality Housekeeping Toronto
“Maria's attention to details and sanitizing protocols surpass any cleaning that has been done for us in the past.”
LGD Cleaning Company
“Professional and experienced team and the highest quality 👌 totally recommend it ✨️✨️ …”
Listed for homeowners in and around Thornhill, ON, these 24 companies clean homes. Most price a one-off deep clean after they have seen the rooms, so treat anything quoted over the phone as a starting figure rather than a fixed one.
Area overview: Thornhill, ON
6 of the 24 companies we list are based in Thornhill; the other 18 serve Thornhill from towns including Toronto, Mississauga and Markham. The companies on this page are rated from 4.5 to 5.0 across 2,395 reviews; 16 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (86%), quality (83%) and responsiveness (66%). The topics that come up most in reviews of the companies on this page are "price", "communication" and "efficient". 14 are open around the clock; 20 are open on Saturdays and 17 on Sundays. The services the companies on this page list most often on their websites are commercial cleaning (3), airbnb cleaning (2), carpet cleaning (2), deep cleaning (2) and maid services (2). 2 have ten or more years of experience, the longest 16 years. 14 offer emergency call-outs; 15 give free estimates; 5 are family- or locally-owned and 5 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 11 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.
Which cleaners listed for Thornhill estimate without charging?
Free estimates are offered by 15 of the 24 cleaning companies here. On a one-off clean the scope is the whole negotiation, so take the free visit and ask the estimator to walk every room, basement included, rather than quote from photos.
Squeaky Cleaning Mississauga
“I booked a 4-hour cleaning for my 3rd floor and kitchen, the cleaning lady Yazmin arrived on time and worked very hard, at 3 hours my rooms are shiny, even my greasy kitchen hood looks like new.”
99 Nice House Cleaning Services Toronto
“The price is very reasonable,the service is amazing...”
A&R Home Cleaning
“We were impressed at how they cleaned each & every little space in the condo.”
Dhyana Cleaning
“The team provides great care to all aspects of the service – from customer communication to the actual cleaning itself.”
Tidy Titans
“This is a great cleaning service my house looks amazing”
Merry Maids
“Nova and her team continue to provide us with excellent service, they are very thorough and professional.”
The Fresh Cleaning
“They were prompt and very friendly employees who showed up.”
Sircleaner
“I definitely recommend this company, they made sure i let them know every single details on what i wanted done, the service was very precise and staff was helpful and friendly.”
Eh! Maids
“Very easy to book online and they came right on time for the appointment.”
Toronto Home Cleaners
“If you are looking for a deep cleaning for your house, I would suggest Toronto Home Cleaners.”
Longividade Cleaning Services Inc.
“Would recommend anyone looking for cleaning services to hire them as the team is punctual responsive and know there job well.”
Eco Scrubbed Residential and Commercial Cleaners Markham
“Hired the team over at EcoScrubbed to clean my office on short notice and they were very quick to respond.”
Pamir Carpet Cleaning
“You were on time and your team did a good work.”
Toronto Shine Cleaning
“They always do a great job :)”
Seeyonclean East End (Gta)
“Not only are their products effective at tackling dirt and grime, but they also leave behind a fresh, citrusy scent that I absolutely love.”
Now It's Clean
“Very satisfied with the service and end result for my rental property.”
Palmiye Upholstery & Carpet Cleaning
“Best Quality Carpet Cleaning Company, Left my carpets like brand new again, this is my second time hiring them, I am very satisfied, well done Palmiye team !”
Prolific Cleaning
“Great team, friendly, polite, good service”
Why these companies made our list
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