Janitorial vs. commercial cleaning: what's the difference?

Commercial cleaning: the umbrella term

Commercial cleaning is the broadest of these terms. It refers to professional cleaning of any non-residential, business space - offices, retail stores, medical suites, warehouses, gyms, restaurants, and the common areas of managed properties. Under that umbrella sits routine janitorial maintenance, periodic deep cleaning, and specialized work like post-construction cleanup or floor care.

When a company calls itself a commercial cleaning company, it is signaling that it serves businesses rather than homes. That distinction matters in Florida for a practical reason: commercial (nonresidential) cleaning is subject to sales tax, while residential cleaning is exempt. So the 'commercial' label is not just marketing - it has tax consequences on your invoice.

Janitorial services: the routine maintenance layer

Janitorial cleaning refers to the regular, recurring upkeep that keeps a space functional and presentable day to day. It is the work most businesses schedule nightly or several times a week.

• Emptying trash and recycling and replacing liners.
• Cleaning, disinfecting, and restocking restrooms.
• Vacuuming carpets and mopping hard floors.
• Wiping and disinfecting high-touch surfaces and common areas.
• Tidying break rooms and kitchens.

Think of janitorial service as maintenance: lighter-touch tasks repeated on a consistent schedule to prevent buildup. It is the backbone of most commercial cleaning contracts.

Office cleaning and custodial: narrower cousins

Office cleaning

Office cleaning is simply commercial or janitorial cleaning tailored to an office environment - desks and workstations, conference rooms, restrooms, break rooms, and lobbies. The tasks overlap heavily with janitorial work; the term just specifies the setting.

Custodial

Custodial is, in practice, a synonym for janitorial. The word is used most often in schools, government buildings, and other institutions, where the person doing the recurring cleaning is called a custodian. If a quote says 'custodial services,' read it as routine janitorial maintenance unless it specifies otherwise.

Deep cleaning: the periodic reset

Deep cleaning is an intensive, less-frequent service that reaches the places routine janitorial work does not touch every visit. Where janitorial keeps a space maintained, deep cleaning resets it.

• Detailed restroom work, including grout, fixtures, and behind and under equipment.
• Baseboards, door frames, vents, blinds, and light fixtures.
• Hard-floor stripping, waxing, and refinishing, or carpet hot-water extraction.
• Interior windows, walls, and high or hard-to-reach areas.
• Appliance interiors and kitchen degreasing.

Many businesses schedule a deep clean quarterly or seasonally on top of recurring janitorial service. Move-in, move-out, and post-construction cleans are specialized forms of deep cleaning - reach-everything resets timed to a transition rather than a regular cadence.

Which service do you actually need?

Most businesses need a combination. A recurring janitorial program handles the daily and weekly upkeep, and a periodic deep clean keeps the space from slowly degrading over the year. Both fall under the commercial cleaning umbrella, so a single commercial cleaning company can usually handle both on one agreement.

Use the terms to be precise when you request a quote. Ask for recurring janitorial service with a clear weekly and monthly schedule, and ask separately whether periodic deep cleaning is included or quoted on top. Spelling that out avoids the common surprise of assuming a routine contract included a deep-clean task it never did. For a task-by-task breakdown of a typical recurring program, see our guide on what's included in commercial office cleaning.

Frequently asked questions