Office cleaning

Office cleaning cost in Illinois

Office cleaning in Illinois runs $1.24 to $2.35 per square foot a year, most likely $1.79, for a crew five nights a week. These are the Illinois rates.

Updated October 31, 2026

SkyPSI exterior cleaning of a commercial building

10,000 sq ft office: $69; per clean, $48 to $90
20,000 sq ft office: $138; per clean, $95 to $181
50,000 sq ft office: $345; per clean, $238 to $452
100,000 sq ft office: $689; per clean, $475 to $903

Rates by building type

Office cleaning rates in Illinois, per square foot a year
Building type	Low	Most likely	High
Office	$1.24	$1.79	$2.35
Medical	$1.98	$3.09	$4.33
Schools	$1.24	$1.85	$2.72
Retail	$0.99	$1.48	$1.98
Warehouse	$0.43	$0.74	$1.11

Source: Public janitorial awards per sq ft a year, by building type. Grade C: modelled from public awards and scaled by the state factor of 1.03. What the grades mean.

What moves the price

Floor area: the more floor, the lower the rate per square foot.
Building type: medical floors take the most care; warehouses the least.
Nights a week: five nights is the standard; fewer nights cost less each month.
Add-ons: restroom deep cleans, breakrooms, high dusting and disinfection.

Metros

Chicago

Questions

What does office cleaning cost in Illinois?

Office cleaning in Illinois runs $1.24 to $2.35 per square foot a year, most likely $1.79. A 20,000 square foot office is about $138 per clean.

What does a nightly clean include?

Trash, restrooms, dusting and floors each visit.

How is a per-clean price figured?

The month's price over its cleans: five nights a week is about 21.7 cleans a month.

How does Illinois compare with the Texas baseline?

Illinois applies a factor of 1.03 to the Texas baseline band.

About these estimates

SkyPSI sets the estimate for commercial building services. Office cleaning is a service. A nightly crew is the method.

Rates calibrated October 31, 2026. Review by January 31, 2027. Method office-cleaning-v1.

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Sources: SkyPSI estimator.

An estimate, not a quote. How a SkyEstimate is built.