Services
Commercial deep cleaning
Commercial deep cleaning is a one-time or periodic top-to-bottom clean of a whole building, for property and facility managers who need more than the nightly routine reaches: vents, baseboards, appliances, glass, grout and carpet included. Continental crews stage the work around tenants across Northern California and northern Nevada and hand the building over to a recurring plan that keeps it there.
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A reset beyond the nightly clean
A commercial deep clean covers everything a regular janitorial visit passes over: the surfaces above door height, the edges at floor level, the inside of appliances, the grout under the restroom fixtures and the soil packed into carpet. Nightly service keeps a building tidy. A deep clean brings it back to a standard where the nightly crew can hold it.
It is a project with its own task list, crew and calendar. We plan it from a walkthrough, run it in a set order from ceiling to floor, inspect it room by room and close it out with a schedule for what comes next, whether that is a one-off reset or a deep clean that repeats every season.
When buildings book a deep clean
Most deep cleans line up with a moment when the building has to look its best or start fresh:
- Before a reopening. A floor or a building coming back after a closure, a remodel or a long vacancy gets a full reset before people return.
- After a slow season. Schools after summer, offices after the holidays and seasonal sites after the quiet months gather dust in places nobody watched.
- Before an inspection or showing. Audits, investor tours, lease renewals and listings all reward a building that is clean in every corner. Our guide to preparing a property for a sale or showing covers the lead time.
- At the start of a new janitorial contract. A deep clean clears what the previous vendor left behind, so the new nightly standard starts from a clean baseline.
- As a seasonal reset. One or two planned resets a year catch the build-up that daily cleaning lets slide.
What a commercial deep clean covers
The task list is written for your building, and it reaches every surface that routine visits leave for later:
- High dusting of ledges, light fixtures, beams and the tops of partitions and cabinets, and low dusting of baseboards, chair rails and furniture legs.
- Supply vents, diffusers and return grilles wiped, with the ceiling tile around them spot cleaned.
- Baseboards, door frames, doors, kick plates and handrails washed by hand.
- Restroom detail: grout scrubbed, fixtures descaled, partitions washed on both faces and drains flushed.
- Break rooms: refrigerators, microwaves and coffee stations cleaned inside and out, cabinet fronts and sinks scrubbed.
- Interior glass, partitions and door glass cleaned edge to edge.
- Hard floors machine scrubbed and carpet deep cleaned by hot water extraction.
Restroom cores that need more than a single pass can move onto our restroom deep cleaning intervals, and floors due for a full refinish are scheduled through floor care in the same project.
Ceiling to floor, in that order
Dust falls, so the work runs top down. Crews start with the overhead pass, move to walls, doors, glass and furniture, then finish with restrooms, break rooms and floors. Each room ends with the floor, which means nothing that drops from a ledge or a vent lands on a surface already finished.
Carpet extraction runs last in each zone, so it has the night to dry with air movers before tenants return. Hard floors get scrubbed and rinsed after the dust has settled, and any area set for refinishing is booked as the closing step of the project.
Staged around tenants
Tenants keep working while their building is deep cleaned. We split the property into zones, a floor or a wing at a time, and schedule each one for evenings, overnight or weekends, when the space is empty. Common areas, lobbies and restrooms follow a sequence that always leaves one open path and one open restroom on every floor.
Before the first night, the property manager gets a written schedule by zone to share with tenants, along with what to clear from desks and counters. Our crews close each zone with signs, work it, put furniture and equipment back where they found it and reopen it before morning. A supervisor walks every finished zone against the task list before the crew moves on.
Continental is insured, carries workers’ compensation and is bonded, our own crews are background-checked, and every client receives a certificate of insurance, which building managers often need on file before a project crew can start.
Handing over to a recurring plan
A deep clean pays off most when the building stays at that level. As the project closes, we turn its findings into a recurring plan: the nightly tasks for janitorial services, daytime touch-ups by porters where traffic calls for them, and a calendar of periodic work such as high dusting, carpet extraction and floor refinishing.
Because the same company ran the deep clean, the recurring crew starts with a known baseline and a list of the areas that needed the most work. Problem spots are added to the nightly checklist by name, and the next periodic visit is already dated, so the building never has to slide back to where it started.
What shapes the price of a deep clean
A deep clean is quoted as a project, and the price follows the building. The main factors are total square footage, how long it has been since the last thorough clean, how many restrooms and break rooms the building has, the share of carpet and hard floor, ceiling heights that call for ladders or lifts, how much furniture has to move, and the hours the building allows the crew to work.
We walk the property with you, note the condition of each area and send a written quote that splits the deep clean by zone and task, with the follow-on recurring plan priced beside it so you can see the whole picture before you book.
A few useful answers
Common questions
How is a deep clean different from regular janitorial service?
Regular service handles the daily tasks: trash, restrooms, touchpoints and floors. A deep clean adds the surfaces those visits pass over, from vents and baseboards to appliance interiors, grout and carpet extraction.
How often do commercial buildings need deep cleaning?
Office buildings do well with one or two a year, and buildings that host the public all day add a seasonal visit. A building on a strong nightly plan needs fewer resets than one starting from neglect.
Can a deep clean happen while our offices stay open?
Yes. The building is split into zones that are cleaned in the evenings, overnight or on weekends, and each zone reopens before the next business day.
How long does a commercial deep clean take?
A single office suite or small building fits into one or two nights. Larger properties are scheduled zone by zone over several nights or weekends, with the full timeline set out in the quote.
Should we book a deep clean when switching cleaning companies?
It is one of the best times to do it. A deep clean at the start of a new contract clears old build-up, so the nightly crew begins on a clean baseline and the standard is easy to hold.
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