Best Commercial & Office Cleaning in Markham, ON

15 companies listed · 12 in Markham · 4 open 24/7 · 9 open weekends · 11 rated 4.5+

Data verified October 18, 2026

Eco Scrubbed Residential and Commercial Cleaners Markham

Eco Scrubbed Residential and Commercial Cleaners Markham

4.9 66 reviews
“Thomas and his team provide me that peace and calmness each and every time with our home and business cleaning as I know they will perform by personalizing each project as their own”
Free consultationOpen 24 hoursSince 2021
14 Dublin St
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Mona Cleaning

Mona Cleaning

4.3 55 reviews
“Maria was very nice and she went about the cleaning quickly and efficiently!”
Free consultationSince 2008
80A Main Street Markham N
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Lowfare Commercial Maintenance

Lowfare Commercial Maintenance

5.0 8 reviews
“We really appreciate him and his team always go above and beyond with the quick service and responses & they ensure our studio is always clean & fresh every day!”
Open 24 hoursSince 2021Virtual consultations
15 Allstate Pkwy 6th Floor
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Zusashi Maintenance Company

Zusashi Maintenance Company

5.0 14 reviews
“My office was a war zone, but these folks swooped in like cleaning ninjas on a mission.”
Since 2023
7030 Woodbine Ave #500
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Associated Pro Cleaning

Associated Pro Cleaning

4.0 2 reviews
“The office and the great treatment”
InsuredSatisfaction guarantee35+ yearsServes Toronto, Greater Toronto Area +3Open 24 hours
3400 14th Ave #22
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The Cleaning Company

The Cleaning Company

4.0 2 reviews
“The property is cleaner, professional and trust worthy staff”
Since 2012
205A Konrad Crescent
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Listed for businesses in and around Markham, ON, these 15 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: Markham, ON

12 of the 15 companies we list are based in Markham; the other 3 serve Markham from Richmond Hill (14 km) and Scarborough (15 km). The companies on this page are rated from 3.9 to 5.0 across 335 reviews; 4 have 50 or more reviews and 11 are rated 4.5 or higher. 4 are open around the clock; 9 are open on Saturdays and 7 on Sundays. 1 shows a licence on its website and 1 lists staff certifications (IICRC). 4 have ten or more years of experience, the longest 24 years. 4 offer emergency call-outs; 5 give free estimates; 2 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for 13 of the companies on this page; 11 publish a contact page; 11 list a public email and 3 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.

Does a contractor need an address in Markham?

An address in Markham is given by 12 of the 15 commercial cleaning companies here; the others come from other towns within 15 km. For nightly work, the supervisor's drive matters more than the office address, since a site that is an hour from the nearest manager gets inspected less often.

Wynford Services

Wynford Services

4.5 1 review
“I have been dealing with Wynford Services for 10+ years and in my opinion is a great Cleaning Company to work with.”
Since 2002
210 Don Park Rd Unit 16
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Lofty Loft Construction

Lofty Loft Construction

5.0 5 reviews
“We have the utmost respect and praise for Lofty Loft Construction, the work they do, and the manner in which they conducted themselves!”
Since 2021
7030 Woodbine Ave #500
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Lisa Group OF Businesses Inc.

Lisa Group OF Businesses Inc.

4.8 3 reviews
“Good service from the employees with regards to all immigration issues”
Since 2019
Scarborough, ON · 15 km from Markham
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Casa Limpia

Casa Limpia

5.0 1 review
“But I have to be honest, it's been more than 7 months that I use them every two weeks and I am very very happy with them.”
100 Allstate Pkwy
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Premium Janitorial Services

Premium Janitorial Services

5.0 1 review
Free estimatesInsuredSince 1991Serves Greater Toronto Area
6060 Hwy 7 Suite 204
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梦家装修 Dream Plumbing&renovation

梦家装修 Dream Plumbing&renovation

5.0 2 reviews
“I renovated bathroom and basement this year with them, very nice work to the details.”
7170 Warden Ave.
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Help Me Clean

Help Me Clean

3.9 5 reviews
“They are really professional and responsive!!”
Since 2018
15 Allstate Pkwy #600
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5 Star Cleaning

5 Star Cleaning

4.6 50 reviews
“Came out super clean and they were very professional, I would definitely recommend 5 Star Cleaning”
24/7 emergency serviceServes Greater Toronto AreaFree consultationIICRC certifiedFamily-owned
Richmond Hill, ON · 14 km from Markham
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Merry Maids

Merry Maids

4.8 54 reviews
“Moe is very responsive, great with scheduling and the cleaners have be great to work with and they do a detailed job and have been punctual.”
Coupons & offersFree consultationLicensedSince 2013Locally owned
Richmond Hill, ON · 14 km from Markham
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HomeCommercial CleanersOntarioMarkham, ON

Why these companies made our list

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