"How much does office cleaning cost?" is the first question most office managers ask, and the honest answer is that it depends on more than square footage. Two 5,000-square-foot offices can get very different quotes. This guide explains what drives the price, so you can understand a quote and adjust the scope to fit your budget.
The biggest factors
1. Square footage
Size sets the baseline because it determines how long vacuuming, mopping, and dusting take. But it's only a starting point. An open floor plan cleans faster than the same area divided into small private offices.
2. Frequency
How often the crew comes is usually the biggest lever you control. Nightly service costs more per month than three visits a week, but each visit is usually cheaper because there's less buildup to deal with. Many offices combine both: restrooms, kitchens, and trash every visit, with lighter workspace cleaning on alternate days.
3. Restrooms and kitchens
Restrooms are the most labor-intensive rooms in any building. The number of restrooms and fixtures (toilets, urinals, sinks) often affects the price more than total square footage. The same goes for kitchens and breakrooms, especially those with dishwashers, multiple appliances, or heavy daily use.
4. Floor types
Carpet, sealed concrete, vinyl tile, wood, and stone all need different care. Hard floors that need periodic strip and wax or burnishing add cost, usually quoted as a separate periodic service rather than part of the nightly price.
5. Headcount and traffic
Fifty people in 5,000 square feet create far more trash, restroom use, and floor wear than ten people in the same space. Busy lobbies and customer-facing areas also need more attention than back offices.
6. Special requirements
- Medical and dental spaces need extra care in patient areas and clear agreement on what clinical staff handle
- Security procedures like escorted access or specific time windows can add time
- Specialty surfaces such as glass walls, stainless steel, or stone need specific products and more time
- Daytime coverage from a day porter is priced separately from night cleaning
7. Supplies
Some quotes include consumables like toilet paper, paper towels, soap, and trash liners. Others include only cleaning chemicals and equipment and bill paper goods separately or expect you to provide them. This one difference can make two otherwise identical quotes look far apart.
How cleaning companies structure prices
| Model | How it works | Good for |
|---|---|---|
| Flat monthly rate | One price for an agreed scope and frequency | Ongoing service, predictable budgets |
| Per visit | A set price each time the crew comes | Weekly or irregular schedules |
| Hourly | Billed by labor hours | Day porters and one-time projects |
| Project quote | One price for a defined job | Post-construction cleans, floor restoration |
For regular janitorial service, a flat monthly rate tied to a written scope is the most common and the easiest to manage. You know what you're paying, and you know what's included.
Why a walkthrough beats a phone quote
A price given over the phone or from a square-footage formula has to assume an average office. Yours isn't average. A walkthrough shows the actual restroom count, floor types, traffic patterns, and problem areas. That gives you an accurate price and a scope that matches your building, instead of a low number that grows once the work starts.
Ways to lower your cost without cutting what matters
- Split the frequency. Keep restrooms, kitchens, and trash on every visit; clean workspaces less often.
- Match the schedule to your attendance. Hybrid offices may not need full service on low-attendance days.
- Separate periodic work. Schedule floor care quarterly or twice a year rather than folding it into every month.
- Make the space easy to clean. Clear desks, a clean-desk policy, and fewer personal items on floors save crew time.
- Review the scope yearly. Offices change. Remove tasks you no longer need and add the ones you do.
The best comparison isn't price per month, it's price per scope. Line up quotes by what's included and how often. The lowest number is only a good deal if it covers the same work.