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How to Choose a Commercial Cleaning Company
The right cleaning company is the one whose crew, paperwork and task list hold up when you look closely. Here is what to ask, what to check and which warning signs to take seriously.
Which commercial cleaning company should your building hire?
Choose the company that asks about your building before it names a price, writes down every room with a frequency for each task, and hands over a current certificate of insurance the first time you ask. Then call two or three references from buildings like yours and compare the written quotes line by line rather than by their totals.
The sections below turn that into a working checklist: what to decide before the first call, the questions and paperwork that separate careful companies from quick quoters, and the warning signs in a bid. When the quotes arrive, our guide to comparing janitorial bids lines them up side by side.
Decide what you need before the first call
Companies can only answer the question you ask them. Before you contact anyone, spend twenty minutes writing down what the building needs. List the rooms by type, the hours when the last person leaves and the first one arrives, and the floors you have: carpet, vinyl tile, sealed concrete, stone. Add the problems that prompted the search, whether that is a restroom that runs out of paper by Thursday or a lobby that never looks finished.
Then rank what matters most. A medical office front desk, a warehouse break area and a law firm reception each judge cleaning by different rooms. Knowing your top three priorities keeps every conversation focused on them instead of on a generic sales pitch. The guide to how often an office should be cleaned helps you match each room to a sensible visit pattern.
Questions that reveal how a company works
The first call is a short interview. Good answers are specific; vague ones tell you as much.
- Which people will be in your building at night, and how often does that roster change?
- Who supervises the crew, and how often does that person walk the building?
- How do I report a missed task, and what happens next?
- Where will our keys, fobs and alarm codes be kept, and who can use them?
- Who supplies paper goods, soap and trash liners?
- Which tasks are recurring and which are quoted as separate projects?
Pay attention to whether the person on the phone asks questions back. A company that wants to know your hours, your floor types and your current frustrations before quoting is already doing the work a good quote depends on.
Ask, too, who your day-to-day contact will be. Some buildings want a single person who answers for the account; others are content with a shared service line. Either can work if you know which one you are getting and how quickly a message reaches the crew that night.
Paperwork to ask for up front
Ask every finalist for a certificate of insurance. Read the dates, the named insured and the coverage types listed, and confirm that workers’ compensation appears alongside general liability. If your landlord or property manager needs its name on the certificate, say so early so the right version comes back. We issue every client a certificate of insurance to keep with its vendor files.
Request a sample task list or inspection checklist as well. Seeing how a company writes down its own work shows how clearly it will write down yours. Ask how cleaners are screened before they are sent to a building, and how that is documented.
Finally, ask how the company records your building’s details: which rooms stay locked, which alarm zones the crew uses, which suites are off limits. A written site sheet means a substitute cleaner arrives with the same instructions instead of relying on one person’s memory.
Call the references, don’t just collect them
Names on a sheet tell you nothing until you dial them. Request two or three contacts at sites close to yours in size and use, then call each one. Five minutes per call is usually enough.
- How long have you used them, and what made you choose them?
- After a missed task, how long did the fix take?
- Has the crew stayed fairly consistent?
- Does a supervisor visit, and do you see the results?
- Would you hire them again for a new building?
Listen for hesitation as much as for praise. A reference who answers the last question quickly and warmly is telling you something a brochure cannot.
Treat the walkthrough as a second interview
A walkthrough is where a company shows how carefully it looks. Walk the building together, including the parts visitors never see: janitor closets, back stairwells, the loading area, the restroom at the end of the hall. Point out the problem spots you listed and watch how each representative responds. Notes, measurements and follow-up questions are good signs; a quick lap and a promise to email a number are not.
Ask each company to explain how it would schedule the work around your hours, and which tasks it would put on a nightly, weekly and periodic rhythm. Those answers should reappear, in writing, in the quote.
If several people in your organization care about the result, bring them along. A facilities lead notices floors and equipment, while an office manager knows which complaints come up every week. Hearing both sets of concerns at once gives the company a fuller picture and saves a second visit.
Warning signs in a quote
Some quotes deserve a second look before you go further:
- A price offered before anyone has seen the building
- No written task list, or a list with no frequencies
- Key tasks marked “as needed” with no description of what triggers them
- No mention of who checks the work
- Insurance described in words but never shown on a certificate
- Pressure to sign before you have compared the alternatives
- Terms you cannot explain back in your own words
None of these settles the decision on its own, but each one is a fair question to put to the company in writing. A clear, unhurried answer is a good sign about how the working relationship will go, and a defensive one is worth remembering when you weigh the finalists.
Making the final call
By now each finalist has shown you how it answers questions, documents its work and responds to detail. Weigh those impressions alongside price. The company that was easy to reach, precise in writing and curious about your building during the sales process tends to stay that way once the work starts.
When two finalists remain close, ask each to describe its first month in your building: how the crew is introduced, when the first supervisor visit happens and how it wants your feedback. The more concrete the answer, the easier the choice.
On our side, supervisors make quality inspections on a regular round, so the standard set at the walkthrough is still being checked months later. To see how that works for your building, request a quote from Loom Janitorial or read about our janitorial services.
A few useful answers
Common questions
What separates a dependable commercial cleaning company from the rest?
A written task list with a frequency for every room, proof of insurance and workers’ compensation, screened cleaners and a supervisor who checks the work. Loom’s cleaners are background-checked, supervisors run quality inspections, and every client receives a certificate of insurance.
What insurance documents should a cleaning company provide?
A current certificate of insurance showing general liability and workers’ compensation, with your company or property listed if your lease or vendor rules call for it. Check the policy dates before work starts.
How many references should we ask for?
Two or three is plenty, as long as they come from buildings like yours. A reference from a similar office or warehouse tells you more than a long list of unrelated accounts.
Is a walkthrough worth it for a small office?
Yes. Even a short visit lets the company see the floors, count the restrooms and confirm the hours, which makes the quote more accurate and the first weeks smoother.
What should a written task list include?
Every room or zone, the work it receives and the interval for each task, with periodic work such as carpet extraction listed separately. The room-by-room task list guide shows a simple layout.
Are Loom’s cleaners background-checked?
Yes. Background checks are part of how every Loom cleaner is screened, and they come before the first shift in any building.