Sleeping Giant Cleaning Services
“I felt very comfortable with her in my home, and I would definitely request her for service again.”
Best Commercial & Office Cleaning in Thunder Bay, ON
9 companies listed · 6 in Thunder Bay · 2 open 24/7 · 7 open weekends · 6 rated 4.5+
Data verified October 18, 2026
We are still growing
There are too few quality options within 25 km, so we have expanded area of coverage to up to 100 km from you. This includes Thunder Bay and several other cities.
Crystal Clear Cleaning Services
The Steam Guy Inc.
“Very accommodating to your specific needs especially when you have time constraints during the day.”
Spotica Services
“Very efficient and does an awesome job.”
Maid For You Cleaning
“I'm definitely booking again and highly recommend to anyone looking for a cleaning service that rocks!”
RAS Facility Services
“Thank you for your prompt response and service!”
Listed for businesses in and around Thunder Bay, ON, these 9 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: Thunder Bay, ON
6 of the 9 companies we list are based in Thunder Bay; the other 3 do not publish an address. The companies on this page are rated from 4.0 to 5.0 across 86 reviews; 6 are rated 4.5 or higher. 2 are open around the clock; 7 are open on Saturdays and 3 on Sundays. Domain records put 2 websites of the companies on this page at ten or more years old; the oldest dates from 2006. 2 offer emergency call-outs; 2 give free estimates; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 9 of the companies on this page; 8 publish a contact page and 6 list a public email. 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 2 of the 9 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.
Termax Service Group Inc.
“We had parts of our lawn re-sodded, aeration and fall fertilization done and were very satisfied.”
North Bright
“The house smelled amazing after they were done (we opted for a scented cleaning) and the dust and construction junk they pulled out of the vents was pretty crazy.”
Extreme Cleaning Solutions
“After a clean, our kids can't wait to get home and find all of the creative surprises Melissa has come up with that day.”
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
