Start with the scope behind the price
A commercial-cleaning quote needs to describe the work it pays for. Start with the areas, tasks, current condition and schedule. Floor area can help estimate some tasks, but it does not count restroom fixtures, explain access restrictions or say whether a first-time deep clean is included.
This guide explains a costing method for small operators. All numerical examples below are invented to demonstrate that method. They are not nationwide prices or evidence of what a local customer will pay.
Measure cleanable area, then estimate each task
Record the space included in your service, which may be smaller than a building’s total floor area. Separate floor types and identify rooms or storage areas that are excluded. For other work, counts of fixtures, bins or desks can be more useful than square footage.
ISSA’s cleaning-time method connects a task’s quantity with a suitable production rate. For an area-based task, time equals area divided by square feet completed per cleaner-hour.
Task example: 1,200 sq ft ÷ an assumed 2,400 sq ft per cleaner-hour = 0.5 cleaner-hours. This covers that floor task only. The assumed speed is not a recommended production benchmark; add separately estimated restroom, trash and other work.
Use equipment- and task-appropriate assumptions, then improve them with times recorded on your own jobs.
Build the cost before choosing the billing unit
| Cost input | What to account for |
|---|---|
| On-site labor | Every cleaner’s time, including your own, multiplied by loaded hourly cost. |
| Employment costs | The additional costs you actually pay, such as paid leave, benefits and payroll-related expenses. Include them once in the loaded labor rate. |
| Supplies and equipment | Expected usage, job-specific rental and a consistent allowance for equipment costs. |
| Travel | Vehicle expense and paid travel time. JanitorMath combines both in the Travel input. |
| Overhead | This visit’s share of administration, software, rent and other fixed costs not included above. |
BLS distinguishes wages from employer benefit costs. Its broad compensation statistics do not provide the right labor allowance for your business. Use your own costs and avoid applying a blanket percentage without checking it.
Compare the same visit, not just the smallest rate
Suppose two cleaners each spend two hours on site at an invented $25 loaded hourly cost. Labor is $100. Add $8 supplies, $18.50 combined travel and $23.50 overhead: $150 total cost.
A 25% target margin gives $150 ÷ 0.75 = $200 per visit. For 4,000 cleanable sq ft, that is $0.05 per sq ft per visit, or $50 per on-site cleaner-hour.
The hourly equivalent includes the non-labor costs and margin; it is not the cleaner’s wage. In this example, a competing number of $0.04 per square foot would produce $160 and leave $10 after entered costs. Before comparing it with the $200 price, check whether the task list, cleanable area and schedule match.
Try your own numbers in the square-foot comparison. Keep the agreed total price because multiplying a rounded unit rate can produce a different total.
State what frequency means for the invoice
A per-visit price and a monthly contract amount use different time bases. Define which tasks happen every visit, which are periodic and which require an extra quote. Service dates, holidays, missed visits and initial work can all change the workload or invoice.
For a hypothetical agreement containing 104 billable visits at $200 each, the annual total is $20,800. Spread across 12 invoices, that is an average of $1,733.33 per month; the rounded installments need a final-cent adjustment to total $20,800. Billing for completed visits instead would vary with the visit count in each month.
The 104 visits are an assumption to check against the actual schedule, not a rule for every twice-weekly agreement.
Make your assumptions visible
Record included rooms and work, supplies responsibilities, arrival windows, access arrangements, exclusions and the process for extra tasks. Our quote template helps put those details beside the price. Its checklist is an editorial aid, informed by ISSA’s emphasis on site-specific service requirements and documented changes.
Compare estimated and actual hours after service begins. A quote can have correct arithmetic and still miss an expense or underestimate the work. Use the record to revise future assumptions and discuss scope changes with the client.
Sources & assumptions
Sources checked September 9, 2026. Worked examples are invented to explain the calculation; they are not industry averages or claims of firsthand operating experience.