What to look for in a commercial cleaning contractor

Every cleaning contract starts well. The first month is the audition: the crew is fresh, the owner is attentive, the standard is high. The question a buyer is actually answering is what the same site looks like in month twelve, when enthusiasm has worn off and only systems are holding the line. Here are the seven things that predict it.

1. A written scope, not a quote

A quote is a number. A scope is a document that says what gets cleaned, how often, to what standard, and what sits outside the price. Contracts drift when the scope lives in someone’s memory; every dispute you will ever have with a cleaner is really a dispute about an unwritten scope. Insist on one before comparing anything else, and compare bidders on inclusions rather than totals.

2. A supervision span that allows supervision

Ask how many sites or cleaners each supervisor carries. At a 1:20 span a supervisor can visit each site roughly monthly, which means a slipping standard has a month to compound before anyone senior sees it. A working span puts someone senior on your site weekly. This single number explains more about long-run quality than any brochure — ask for it, and ask when your site was last inspected.

3. Reporting after every visit

If the clean is not evidenced, it is asserted. Per-visit reporting (checklist sign-off, photos where it matters) converts the cleaning relationship from trust to verification: a slipping standard shows up in a report within days, not in a client comment within months. It also gives you something concrete to hold the contractor to at review time.

4. The same crew, visit after visit

A rotating cast of casuals cannot hold a standard because the standard lives partly in site knowledge: which meeting room hosts clients, which door sticks, which floor scratches. Ask what crew turnover looks like on a typical contract and whether the same people return each visit. Stability is a direct output of how the contractor pays and treats staff, which is the next point.

5. A compliance stack you can verify

Award-compliant pay, 12% superannuation, WorkCover and, in Victoria, a labour hire licence for businesses supplying cleaning workers to your site — checkable in sixty seconds on the public register. This is not paperwork pedantry: a contractor who underpays or skips cover is a contractor whose costs can migrate to you as wage-claim exposure, incident liability and mid-contract collapse.

6. Insurance that matches your building

Public liability at a level your building manager will accept ($20M is the common bar for commercial towers), plus workers compensation as above. Ask for the certificate of currency, and note whether it is offered before you ask; operators with real cover volunteer it.

7. A defined path for the day it slips

Every contractor’s standard slips eventually. The differentiator is what happens next: is there a rectification commitment in writing, at whose cost, and how fast? Ours is blunt: if the standard slips, we fix it at our cost. Whatever the answer, get it before signing, because it is the one clause you will actually use.

What price tells you

Price is the fastest proxy for everything above. As we set out in the 2026 rates guide, the casual award wage alone is $33.85 an hour on a weekday: once super, WorkCover, insurance, equipment and any real supervision are loaded, an operator with employed staff cannot sustainably charge below about $45. A markedly cheaper quote is not a negotiation win, it is an early disclosure that one of the seven items above is missing.

If you are evaluating contractors now, take this list to the walkthrough and ask each bidder the same questions. The good ones will answer in specifics and paperwork. A 15-minute call with us gets you a written scope, a transparent rate and every document named above, unprompted.