Knowing how to choose a commercial cleaning company starts with one shift in thinking. Most buyers begin by comparing monthly prices, but two quotes for the same building often cover very different work. A better approach is to decide what the building needs, ask every company to quote the same scope, and then check how each one trains its crews, inspects its work, and fixes mistakes.
This guide walks through that process. Everest cleans occupied commercial buildings after hours in Winnipeg, Calgary, Toronto, Ottawa, Kitchener, and the Lower Mainland, and the same handful of questions comes up on most walkthroughs. Here they are, in the order that saves the most time.
How to choose a commercial cleaning company: start with your building
Before you call anyone, write down how your team uses the space. For example, a ten-person office, a warehouse with loading docks, and a clinic with treatment rooms need three different cleaning programs, even at the same square footage.
First, note the floor types, the number of washrooms, the busiest areas, and the hours when the building is empty. Next, decide how often each area needs attention. Nightly washroom and garbage service is common, while carpet extraction or strip and wax usually happens a few times a year.
With that list in hand, every company quotes against the same facts. Without it, you end up comparing guesses.
Look for experience with your type of building
Commercial cleaners work around people, inventory, alarms, and equipment. Because residential experience doesn’t transfer well to that, ask which building types a company cleans every week.
The answer should match yours. An office cleaning program centres on workstations, washrooms, break rooms, and floors. Warehouse cleaning, on the other hand, has to cover docks, racking, and large floor areas. Restaurant cleaning starts after close and includes the kitchen and back of house. Daycare cleaning puts the most attention on shared surfaces, washrooms, and play areas. Clinics also have their own rules, which we cover in clinic cleaning vs office cleaning.
Ask for the specifics of how they handle your type of space. “We clean everything” isn’t an answer.
Choosing a commercial cleaning company: get the scope of work in writing
The scope of work is the most important page of any proposal. It should list every task, how often each one happens, and which services cost extra.
Regular service usually covers vacuuming, mopping, garbage removal, washrooms, break rooms, entrances, and wiping high-touch surfaces. Periodic work, however, sits on a separate schedule and typically includes carpet cleaning, floor stripping and waxing, interior glass, high dusting, and deep cleaning.
Don’t assume the price covers a task just because another company offers it. If you want a plain-language breakdown first, read what commercial cleaning includes, and then check each line against the proposal in front of you. This step matters most when you’re learning how to choose a commercial cleaning company, because the scope is what makes quotes comparable.
Ask how the company trains and supervises cleaners
The quality of the service depends on the people doing the work, so ask how a new cleaner learns your building. Good answers cover chemical handling, equipment use, floor-care technique, cross-contamination, and safety procedures, plus the site-specific steps for your facility.
Then ask whether an outside standard measures the company. The ISSA Cleaning Industry Management Standard (CIMS) is the main one in the industry. It audits service delivery, quality systems, health and safety, human resources, and management practices. Everest holds CIMS certification, so an outside auditor has reviewed our training, inspection, and safety processes, not just our own managers.
Membership in industry groups is a smaller signal, but it’s still worth asking about. Everest belongs to BSCAI, ISSA Canada, and the Canada Green Building Council, and we’re a BBB accredited business with an A+ rating. None of these replace a clear answer on training. However, they show a company answers to outside standards and keeps up with the industry.
Check how the company inspects quality
Almost any company can make a building look good on the first night. What matters is whether the standard holds in month four.
Ask who supervises the crew and how often someone inspects the work. Then ask what happens when the crew misses a task: who you call, how the company logs the miss, and how fast it fixes the problem. As a result, a written inspection routine and one named contact let you catch small problems before they become habits.
Confirm insurance and workers’ compensation
Cleaners often work alone in your building at night, near equipment, records, and stock. For that reason, ask for proof of liability insurance and workers’ compensation coverage before the contract starts.
The right body depends on your province: WorkSafeBC in British Columbia, WCB in Manitoba and Alberta, and WSIB in Ontario. In addition, many building managers require a certificate of insurance before a contractor gets access. If yours does, send those requirements early so the quote reflects them.
Match products and equipment to the task
A commercial program needs commercial tools, such as proper vacuums, floor machines, microfibre systems, and carpet extraction equipment where the scope calls for it. Ask what the crew will bring.
Products matter too, because cleaners, sanitizers, and disinfectants do different jobs. The Canadian Centre for Occupational Health and Safety recommends following label directions, dilution instructions, and safe handling practices. If green products matter to your organization, ask which ones the company uses and why. A “green” label alone doesn’t tell you the product is right for the surface.
Check schedule flexibility
Cleaning should fit around your operation. Most offices and restaurants want service after hours, while some sites need early mornings, weekends, or multiple shifts.
Ask how easily the schedule can change. New tenants, event weekends, and a busy season all shift what you need. Therefore, a company that can adjust quickly will serve you better than one with a fixed template.
Compare quotes when choosing a commercial cleaning company
The lowest quote can turn out to be the most expensive if it leaves out work you need. Before you compare prices, line up frequency, scope, supervision, equipment, and extras. If one company quotes three visits a week and another quotes five, the monthly totals tell you nothing. Most advice on how to choose a commercial cleaning company skips this step, yet it’s where quotes stop being guesses.
That’s why we walk the building before we quote. A walkthrough lets us price the actual floors, washrooms, and access needs instead of an average building. Whichever company you choose, ask for the same.
Red flags to watch for
Be cautious if a company:
- gives a firm price without seeing the building
- can’t explain what the price covers, or which tasks cost extra
- has no inspection process or named contact
- can’t describe how it trains cleaners
- won’t provide insurance or coverage documents
- quotes an unusually low price without a matching scope
Frequently asked questions about how to choose a commercial cleaning company
How many quotes should I get? Two or three is enough. Give each company the same building details and the same cleaning frequency so the proposals are comparable.
Should a company visit before quoting? Yes. A walkthrough is the only reliable way to price floors, washrooms, and access requirements. Be cautious about any firm price given over the phone alone.
What should the contract spell out? The task list and frequencies, the periodic services, the extras, the inspection process, and your point of contact.
Next steps for choosing a commercial cleaning company
Now that you know how to choose a commercial cleaning company, the next step is a walkthrough. Everest provides after-hours commercial cleaning across six Canadian cities. Start with the page for your area: Winnipeg, Calgary, Toronto, Ottawa, Kitchener, or the Lower Mainland.
Everest holds CIMS certification, is a BBB accredited business with an A+ rating, and belongs to BSCAI, ISSA Canada, and CAGBC, with crews in six Canadian cities.
Book a free consultation and we’ll walk your building and send a written scope you can compare against any other quote.
