How Much Does Commercial Cleaning Cost in the Inland Empire?

A facility manager pricing janitorial for the first time usually starts with square footage, and that is the right starting point — but it is only one input. A 40,000 sq ft single-story office with light evening traffic cleans faster per square foot than a 40,000 sq ft manufacturing floor with three shifts, food debris in a breakroom, and a production area that has to be cleaned around running equipment. Anyone quoting off square footage alone, without asking about the other variables below, is guessing.

• **Square footage and layout** — open floor plans clean faster per square foot than partitioned offices, cubicle farms or multi-room suites with the same footprint.
• **Frequency** — nightly service costs more in total than 2x/week, but per-visit cost usually drops as frequency rises because setup and travel time amortize across more visits.
• **Floor mix** — carpet, VCT, sealed concrete, polished stone and epoxy each carry a different maintenance cycle and labor cost; see floor care and stone and concrete polishing.
• **Restroom count and traffic** — restrooms are the highest labor-per-square-foot space in most buildings; more fixtures and heavier traffic mean more time regardless of overall square footage.
• **Access hours** — cleaning that has to happen on a tight overnight or weekend-only window, or around a live production schedule, costs more than a building open to cleaners all day.
• **Compliance requirements** — GMP, food-grade, or lab environments add documented SOPs, logs, and sometimes dedicated equipment that isn't shared across other accounts. See GMP cleaning requirements.
• **Specialty work** — carpet extraction, window cleaning, pressure washing and parking lot sweeping are usually priced separately from recurring janitorial, not folded into a flat rate.

None of these models is inherently better; they're tools for different situations. What matters for comparing bids is knowing which model each vendor used and normalizing before you compare. Take a hypothetical: a $0.12/sq ft/month quote and a $0.09/sq ft/month quote aren't comparable if the first assumes 5x/week service and the second assumes 3x/week — the second building is getting cleaned less, not cheaper.

A single multi-fixture restroom can take longer to service properly than an entire open office bullpen twice its square footage, because the work isn't proportional to floor area — it's proportional to fixture count, touchpoint density and consumable turnover. A facility manager comparing two buildings by square footage alone will consistently underestimate the smaller building with the busier restrooms and overestimate the larger building with fewer, lighter-traffic fixtures.

Floor mix works the same way. Recurring janitorial pricing typically assumes routine care — vacuum, dust mop, damp mop — but the deep-cycle maintenance sitting behind that routine care (strip and refinish, burnishing, diamond polishing, hot water extraction) is usually quoted separately because it runs on its own frequency, not the nightly or weekly janitorial cycle. A quote that folds floor restoration into a flat monthly number without naming the cycle is either overpriced for the routine work or under-scoped for the restoration work — one of the two is being shorted.

A regulated facility isn't paying more because the surfaces are dirtier; it's paying for documentation, traceability and process discipline that a standard office account doesn't need. Equipment can't be shared across zones without a documented cleaning-between-use protocol, chemistry has to be selected and rotated deliberately rather than by preference, and every completed task typically gets logged rather than assumed. See GMP cleaning requirements for what FDA regulations actually require of a cleaning program in a drug, dietary supplement or food facility, and GMP and regulated facilities for how that translates into a service model.

Specialty work — window cleaning, pressure washing, parking lot sweeping, post-construction cleanup — is priced on its own because it doesn't run on the janitorial calendar. A quarterly window cleaning visit or an annual lot sweep isn't a line item inside a monthly janitorial rate; it's a separate scheduled service, and a proposal that buries it inside one number is hiding how often it's actually happening.

The U.S. Bureau of Labor Statistics' Occupational Employment and Wage Statistics (OEWS) program publishes metro-area wage data for Janitors and Cleaners, Except Maids and Housekeeping Cleaners (SOC 37-2011). For the Riverside-San Bernardino-Ontario, CA metropolitan area, the May 2025 estimates (released in 2026) put employment in this occupation at 19,520, the mean hourly wage at $21.27, the median hourly wage at $19.64, and the mean annual wage at $44,240. Those are wages only — payroll taxes, workers' compensation, insurance, supervision and supplies sit on top.

1. 01

   Write the scope first

   Use the room-by-room janitorial scope of work template to define frequencies before you ask anyone to price anything.

2. 02

   Send the same scope to every bidder

   Don't let vendors define their own scope and price it — that guarantees three different jobs at three different prices.

3. 03

   Ask which pricing model each bid uses

   Per square foot, per visit, hourly, or fixed monthly — normalize before comparing dollar figures.

4. 04

   Separate recurring janitorial from specialty and deep-cycle work

   Floor restoration, window cleaning, and pressure washing should appear as their own line items with their own frequency, not folded into one number.

5. 05

   Ask what happens when scope changes

   A tenant move, a new production line, or an added shift changes the workload — get the process for repricing in writing before you need it.