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The three types of commercial cleaning services
The three types of commercial cleaning services are routine janitorial cleaning, periodic or deep cleaning, and specialty or project cleaning. Routine work keeps a building ready every day, periodic work restores what daily cleaning cannot reach, and project work handles one-off jobs. Here is what each covers, how often it runs, who it suits and what sets its price.
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Three types of cleaning, side by side
Most cleaning budgets mix all three types without naming them, which is why two bids for one building can look so different. Sorting the work into routine, periodic and project lines makes it easier to price and to check.
| Type | Typical tasks | Usual schedule | Best fit |
|---|---|---|---|
| Routine (janitorial) | Trash and recycling, restrooms cleaned and restocked, vacuuming, mopping, reachable dusting, breakrooms, entry glass | One to seven nights a week, plus porter hours by day | Every occupied building |
| Periodic or deep | Strip-and-refinish, scrub and recoat, carpet extraction, restroom deep cleans, high dusting, interior glass | Monthly, quarterly or once or twice a year, set by traffic | Buildings whose floors, restrooms and ceilings take steady wear |
| Specialty or project | Post-construction, suite turnover, terminal cleaning, cleanroom cleaning, pressure washing, windows | Booked per job, or on a fixed calendar for exteriors | Moves, build-outs, clinical rooms, controlled spaces and building fronts |
Routine janitorial cleaning
Routine cleaning is the recurring program that resets a building after each working day. A night crew empties trash and recycling, cleans and restocks restrooms, vacuums carpet, mops hard floors, wipes breakrooms, dusts at reachable height and clears fingerprints from entry glass. Paper, soap and liners come out of the same program.
Offices with a steady headcount run three or five nights a week, while busy multi-tenant buildings, retail centers and medical suites add a day porter for restrooms, lobbies and entries at peak hours. Our janitorial services page shows how nightly and porter coverage fit together.
What sets the routine price: cleanable square footage, nights per week, restroom and fixture count, how much of the floor is carpet versus tile or stone, whether supplies are included, and after-hours access.
Periodic and deep cleaning
Periodic work restores the surfaces a nightly crew maintains but never fully renews. Resilient floors are stripped and refinished, or scrubbed and recoated between strips. Concrete is machine scrubbed, and marble and terrazzo are cleaned and polished. Carpet gets extraction or encapsulation, restroom cores get a deep clean of grout, partitions and fixture bases, and high dusting clears diffusers, light lenses, ductwork and ledges.
Each task runs on its own calendar, set by traffic. Restroom deep cleans move between weekly, monthly and quarterly by how hard each core is used, and high dusting ranges from quarterly in busy open spaces to once or twice a year under drop ceilings. Our floor care page covers each floor method and finish.
What sets the periodic price: the area of each floor or carpet zone, finish condition and buildup, furniture to move, ceiling height and the ladders or lifts it calls for, and how long a space can close for the work.
Specialty and project cleaning
Project cleaning covers jobs with a clear start and finish. After a tenant improvement or remodel, a crew works in rough, final and touch-up passes so the space is ready for furniture and move-in; our post-construction cleaning page explains each pass. A suite turnover resets a vacated space for the next tenant, walls to floors.
Some specialty work follows the room’s own protocol. Exam and procedure rooms get terminal cleaning to the practice’s protocol, with EPA-registered disinfectants left on for the label dwell time. Labs and cleanrooms are cleaned as part of the room’s contamination-control program, following its gowning, tools and cleaning order.
Exterior work belongs here too. Pressure washing lifts gum and grime from entries, plazas and walkways, with water use planned to protect nearby storm drains, and window and detail cleaning brings glass, frames and sills back to a clear finish. Both run well on a fixed calendar, quarterly or twice a year.
What sets the project price: the size and condition of the space, the deadline and working hours, any room protocol, the surfaces and soil involved, and access to upper glass. Every client receives a certificate of insurance, which general contractors and property managers ask for before work starts.
Combining the three into one program
The strongest cleaning plans treat the three types as layers of one program. Routine cleaning is the base on a fixed weekly schedule. Periodic work sits on a written calendar, so floor refinishing, carpet extraction and high dusting happen on dates rather than when someone notices. Project work is quoted separately and booked around moves, build-outs and inspections.
Continental runs all three under one service manager, with supervisors doing quality inspections across every layer. Crews are background-checked, insured, bonded and covered by workers’ compensation, and you deal with one schedule and one point of contact.
To see how the layers add up for your building, start with the facility cleaning price calculator, then compare the 2026 market ranges in our facility services cost guide. The final price follows a walkthrough and a written quote that lists each type of work, its frequency and its areas on separate lines.
A few useful answers
Common questions
What are the three types of commercial cleaning services?
Routine janitorial cleaning, periodic or deep cleaning, and specialty or project cleaning. The first runs on a weekly schedule, the second on a calendar of floor, carpet, restroom and overhead work, and the third is booked per job.
Is janitorial service the same thing as commercial cleaning?
Janitorial service is the routine part of commercial cleaning: the recurring nightly or weekly program. Commercial cleaning is the wider term, taking in deep cleaning and one-time projects as well.
How often should deep cleaning be scheduled in an office building?
Set each task by traffic. Busy restroom cores get a deep clean weekly to quarterly, high-traffic floors and carpet several times a year, and overhead dusting quarterly to twice a year. The first visits show how fast each area wears.
Can one company handle routine, deep and project cleaning?
Yes. Continental plans all three in one written program with one service manager, so nightly crews, floor teams and project crews work from the same calendar and supervisors inspect all of it.
How is each type of cleaning priced?
Routine cleaning is quoted as a monthly price set by square footage, frequency and restroom count. Periodic and project work is quoted per job by area, condition, access and timing, and a walkthrough turns those factors into a written quote.