Maple Property Cleaning
“They delivered prompt service on short notice, always did an excellent job, and were pleasant to work with.”
Best Commercial & Office Cleaning near St. Thomas, ON
1 of these companies is based in St. Thomas; the others serve St. Thomas from London (24 km).
6 open 24/7 · 11 open weekends · 14 rated 4.5+
Data verified October 18, 2026
Enviro-Master
“He explains what he is doing and what else can we can do to keep the kitchen and restaurant clean and safe.”
A Plus Building Maintenance
“We have been using A-Plus Maintenance for our weekly office cleaning, and they have been fantastic.”
Ocean Building Maintenance
“They cleaned everything throughly and have been a treat to work with.”
Western Steam
“Al came to our home and did a wonderful job and was very conscientious .”
Miral General Cleaning Inc.
“I've been using this cleaning company for my business every day, and I'm extremely satisfied with their service.”
Listed for businesses in and around St. Thomas, 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: St. Thomas, ON
The 15 companies on this page are rated from 4.0 to 5.0 across 304 reviews; 1 has 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the companies on this page are "price", "professional" and "quality". 6 are open around the clock; 11 are open on Saturdays and 7 on Sundays. 5 have ten or more years of experience, the longest 25 years. 6 offer emergency call-outs; 7 give free estimates and 3 are family- or locally-owned. We have a website on file for all 15 of the companies on this page; 13 publish a contact page; 11 list a public email and 2 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.
Do any of these companies clean around the clock?
Around-the-clock availability is stated by 6 of the 15 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.
Exteria Brite
“Very professional and courteous team they go above and beyond what is expected.”
Echo Janitorial Services
“I recommend their services very detailed , very reliable and very friendly”
Pristine Cleaning
“Thank you ladies for making my day so much better and giving me a fresh start to what we hope to be postpartum days soon.”
Provincial Cleaning Services & Supplies
“I would recommend their services for any larger scale business or operation.”
Sancare Hygiene
Concept Cleaning Svc
Holland Cleaning Solutions
“An honest company worth your time!”
Kim's Cleaning Service
“I've started a regular booking with Fares and his team and they do a very good job.”
Cleaning Edge
“The extra 'elbow grease' you had to do to get all the stains out and of course the SAND, was really appreciated!”
Why these companies made our list
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