Commercial Cleaning & Janitorial Services in St. Catharines, ON

Typical cost in St. Catharines: $425 to $2,150 CAD a month for a 2,500 to 10,000 sq ft office cleaned 1 to 5 times a week.

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Get a written proposal from a local commercial cleaning and janitorial company that serves St. Catharines, Ontario. Tell us about your building and one company follows up to set up a walkthrough.

  • Free, no obligation
  • One company contacts you, not five
  • Licensed, bonded and insured
  • Offices, medical, schools, churches, warehouses, gyms, dealerships

Cleaning services in St. Catharines

Office CleaningOffice or professional buildingMedical and Dental Office CleaningMedical, dental or veterinary officeDaycare and School CleaningDaycare, preschool or schoolChurch CleaningChurch or place of worshipWarehouse and Industrial CleaningWarehouse or industrial buildingGym and Fitness Centre CleaningGym or fitness studioCar Dealership CleaningCar dealership or showroomSomething else?A store, hotel, lab or any other commercial building. Tell us about it.

Typical monthly cost in St. Catharines

ServiceEstimated monthly cost (CAD)
Office Cleaning2,500 to 10,000 sq ft, 1 to 5 visits a week$425 to $2,150
Medical and Dental Office Cleaning2,500 to 6,000 sq ft, 1 to 5 visits a week$425 to $2,200
Daycare and School Cleaning4,000 to 10,000 sq ft, 1 to 5 visits a week$425 to $2,700
Church Cleaning6,000 to 15,000 sq ft, 1 to 3 visits a week$425 to $1,950
Warehouse and Industrial Cleaning20,000 to 60,000 sq ft, 1 to 5 visits a week$700 to $8,550
Gym and Fitness Centre Cleaning4,000 to 12,000 sq ft, 1 to 5 visits a week$425 to $2,900
Car Dealership Cleaning8,000 to 20,000 sq ft, 1 to 5 visits a week$425 to $3,800

For a mid-size office, St. Catharines is about 4% below the Canadian median and about 4% below the Ontario provincial median. Labour is most of the cost, so the local cleaner wage drives the difference.

Estimated with standard janitorial production rates and the Hamilton-Niagara Peninsula region median wage for light duty cleaners of $18.00 an hour (Government of Canada Job Bank, 2025 release). Pick a service above to see prices by building size and how often it's cleaned. How we estimate prices.

Local market in St. Catharines

  • 153,865 residents, up 8.1% since 2021
  • $18.00 an hour median cleaner wage, Hamilton-Niagara Peninsula region
Businesses with employees in St. Catharines, by type
Type of businessNumber
Professional, scientific and technical firms369
Physician offices183
Finance and insurance firms174
Wholesale distributors157
Dental offices64
Religious organizations61
Child care centres49
Car dealers32
Warehousing and storage5

Before you sign with a commercial cleaning company in St. Catharines

Ask the company for:

  • A certificate of insurance naming your business, showing commercial general liability (commonly $2 million or more per occurrence) and a janitorial bond, plus a clearance certificate from the WSIB showing their workers' compensation account is in good standing.
  • A price that fits the work. In St. Catharines, a 10,000 sq ft office cleaned three times a week runs about $1,350 CAD a month. A bid far below that usually means fewer hours on site, so ask for the crew size and hours per visit.
  • How keys, alarm codes and after-hours access are handled, and who on the crew holds them.
  • Two references from buildings like yours in the St. Catharines area. Call both.

More questions to ask, and red flags, in our hiring guide.

Areas served around St. Catharines

St. Catharines is in the Regional Municipality of Niagara, part of the St. Catharines-Niagara metro area.

Postal codes starting with: L2M, L2N, L2P, L2R, L2S, L2T, L2V, L2W

Nearby cities

Hamilton 50 km

St. Catharines-area companies also serve Thorold (7 km), Lincoln (14 km), Niagara Falls (16 km), Welland (21 km), Grimsby (26 km), Fort Erie (39 km), Oakville (47 km), Burlington (54 km).

Other cities we cover

Toronto, ON 61 kmBrantford, ON 83 kmOshawa, ON 87 kmGuelph, ON 92 kmKitchener, ON 106 kmBarrie, ON 141 km

All Ontario cities we cover

Frequently asked questions

How much does commercial cleaning cost in St. Catharines?

It depends on size and how often it's cleaned. In St. Catharines, a 2,500 square foot office cleaned once a week runs about $425 a month, and a 10,000 square foot office cleaned five times a week about $2,150, based on the local median cleaner wage of $18.00 an hour. Medical offices and gyms cost more per square foot, and churches and warehouses cost less. Prices are in Canadian dollars, before sales tax.

Is janitorial service the same as commercial cleaning?

Mostly. Janitorial service usually means the routine cleaning done every visit: trash, restrooms, dusting and floors. Commercial cleaning also covers periodic and specialty work such as floor refinishing, carpet extraction and window washing. Most commercial cleaning companies in St. Catharines do both.

How do I get a commercial cleaning quote in St. Catharines?

Send the form on this page. One local commercial cleaning company that serves St. Catharines will contact you, walk through your building and send a written proposal. It's free and there's no obligation.

Planning your request? Use our janitorial RFP template and read how to hire a cleaning company. Replacing a cleaner you have now? Switch without a gap.

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