Office Cleaning Cost
ISSA’s December 4, 2025 guide lists general office cleaning at $0.09–$0.17 per cleanable square foot per month. The rate is monthly contract cost divided by cleanable square feet. It is an industry guideline, not a Strong Tower price. Strong Tower quotes after a walkthrough.
ISSA ranges: monthly cost per cleanable square foot
| Facility type | ISSA range |
|---|---|
| General office | $0.09–$0.17 per sq ft |
| Medical and healthcare | $0.14–$0.29 per sq ft |
| Industrial or manufacturing | $0.08–$0.20 per sq ft |
| Retail | $0.07–$0.15 per sq ft |
| Schools | $0.07–$0.14 per sq ft |
ISSA does not publish a dollar total for a Portland office. It publishes the per-square-foot guideline above and says the number moves with frequency, scope, and labor.
Source: ISSA: Commercial Cleaning Rates per Square Foot (December 4, 2025). These figures are not Strong Tower prices.
What ISSA says moves office cleaning cost
- Frequency. ISSA says more frequent cleaning often lowers the per-square-foot rate.
- Soil level and the condition of the space.
- Scope. Trash removal, restroom sanitation, carpet cleaning, hard floor care, disinfection, and window cleaning each change the rate.
- Labor costs, including wages, benefits, and staffing in the local market.
How ISSA says to read an office bid
- Ask for a written scope with tasks and frequencies.
- Confirm the square footage is cleanable square feet.
- Compare the monthly contract cost divided by that square footage with ISSA’s office range of $0.09–$0.17.
- Walk the office before treating the range as the price.
Questions about the price
How much does office cleaning cost per square foot?
ISSA’s December 4, 2025 guide lists general office cleaning at $0.09–$0.17 per cleanable square foot per month. That is an industry guideline, not a Strong Tower price.
How much does office cleaning cost per month?
ISSA does not publish a monthly dollar total for a given office. It defines the rate as monthly contract cost divided by cleanable square feet. Strong Tower quotes after a walkthrough.
Are these Strong Tower’s prices?
No. The office figure is ISSA’s published guideline. Strong Tower’s price comes from a walkthrough and a written scope.
Walkthrough quotes: 971 516 0787.