Why Your Office Cleaning Services Cost Estimate Keeps Missing

A facility manager at a 30,000 square foot professional office collected three quotes for nightly janitorial. One came in at half the others. She picked the cheapest, signed a one-year contract, and by month three was fielding complaints about dirty microwaves, overflowing trash bins, and restrooms that got attention twice a week instead of nightly. The quote was not wrong because the vendor lied. It was wrong because the request that generated it left out half of what the space actually needed.

We see this pattern most in offices and corporate campuses. Managers ask what office cleaning services cost, but the information they hand over to get an answer is too thin to produce a number anyone can stand behind. The mistakes are predictable. So are the fixes.

The mistake: pricing by square footage alone

Square footage matters, but it is only the starting point. A 20,000 square foot open floor plan with rows of desks cleans faster than a 20,000 square foot suite broken into forty private offices, a dozen conference rooms, and three breakrooms. Doors, corners, and furniture slow a crew down in ways that raw square footage does not capture.

Floor type changes the math again. Carpet tile needs vacuuming and periodic extraction. Luxury vinyl plank or polished concrete needs damp mopping and periodic burnishing or stripping and waxing. A space split between the two needs a crew budgeting time for both, with different equipment for each.

When a manager asks for office cleaning services prices per hour without naming the floor surfaces, the rooms in scope, and the traffic pattern, every bidder is guessing at a different version of the job. The bids look inconsistent because they answer different questions, not because anyone padded the number.

The mistake: skipping frequency and headcount until after the quote

A 12,000 square foot office with 40 staff on-site five days a week needs a different program than the same square footage with 40 staff who rotate through a hybrid schedule and fill the space three days a week. Restroom traffic, trash volume, and breakroom mess scale with bodies in the building, not with the lease size.

Frequency gets decided too late in a lot of these conversations. A manager requests a quote for nightly service, then negotiates down to three nights a week once the number comes back higher than expected, without recalculating what three nights actually covers. Restrooms left unattended for two days running smell different by the third morning. Trash that sits over a weekend draws a different kind of complaint than trash emptied daily.

Tell the vendor the headcount and the real occupancy pattern up front, including which days people are actually at their desks. That number drives labor hours more than the square footage does, and it is the detail most often left off the initial request.

The mistake: treating deep cleans as optional add-ons

Nightly janitorial keeps a space presentable. It does not touch grout lines, strip and refinish hard floors, extract carpet, or clean behind and under furniture that does not move during a routine visit. Offices that skip periodic deep cleaning tend to notice the gap first in carpet that looks permanently dingy no matter how often it is vacuumed, and in hard floors that lose their finish and start looking dull under lobby lighting.

A reasonable baseline for a general office is quarterly deep cleaning, with carpet extraction and hard floor refinishing on that same cycle or close to it, though call centers, medical-adjacent suites, and high-traffic lobbies often run tighter. Ask any vendor for their detailed deep cleaning checklist before signing, not after a complaint, so you know exactly what is included in that quarterly visit versus what gets billed separately.

Banks and professional firms with client-facing lobbies tend to feel this gap the hardest, since a dull floor or stained carpet in a reception area reads as neglect to a visiting client even when the nightly service has been fine. Coworking spaces have the opposite problem: high turnover of tenants and guests means breakrooms and shared kitchens need attention closer to daily, and a program built around a traditional five-day office schedule under-serves them.

What an accurate estimate actually requires

At ScrubEase, we price office accounts from a short list of details, and the accounts that get the most accurate number up front are the ones that hand over all of it at once rather than in pieces. The basis is square footage and floor surfaces, the rooms and areas in scope, the frequency and schedule, headcount or occupancy pattern, and any special requirements such as a server room that needs careful dusting or a lobby that needs daytime touch-up during business hours.

• Total square footage, broken out by floor type (carpet, vinyl, tile, polished concrete)
• Rooms and areas in scope: private offices, open floor, conference rooms, restrooms, breakrooms, lobby, server or IT rooms
• Frequency: nightly, five days a week, three days a week, or a day porter model for daytime coverage
• Headcount and occupancy pattern, including hybrid schedules
• Special requirements: disinfection protocols, post-construction cleanup after a renovation, coworking turnover between member cycles

Vendors price office cleaning services by square foot for straightforward recurring programs, or per visit when the schedule is irregular or the space has unusual peaks, such as a coworking floor that fills up around event days. Either way, the number only holds if the scope behind it is specific. A one-line request for "cleaning for a 15,000 square foot office" will come back vague, because the vendor has to fill in every missing detail with an assumption, and assumptions are what cause the price to move once the contract starts.

Vetting matters here too, separate from price. Ask for a certificate of insurance and bonding, a written scope that matches what you sent, and documentation of how crews are trained and inspected, whether the work is performed by direct employees or a vetted subcontractor crew. For related reading on how offices structure ongoing building care around these same cost questions, see our piece on choosing a commercial building maintenance company for officesand for how inspection documentation ties into accountability, see the inspection paper trail for office building maintenance.

Questions managers ask about office cleaning services cost

What is a typical range for office cleaning services cost?

Pricing varies widely by region, floor type, and frequency, so any flat number is misleading without those details attached. A general office running nightly service typically falls into a per-square-foot monthly range, while a smaller suite or a daytime porter arrangement is often priced hourly instead. The only reliable way to get a number that holds is to send the full scope and request a quote against it.

Why do quotes for the same office vary so much between vendors?

Different vendors often price different jobs, even when the square footage is identical, because the request they received left out floor types, room counts, or occupancy patterns. One bidder may assume carpet throughout while another assumes mixed flooring, and that assumption alone can shift labor hours significantly. Sending identical, detailed scope sheets to every vendor is the only way to compare quotes that mean the same thing.

Should deep cleaning be priced separately from nightly service?

Most programs separate the two, with nightly or recurring janitorial covering trash, restrooms, and surface cleaning, and a quarterly or semi-annual deep clean covering carpet extraction, floor stripping and refinishing, and detail work that routine visits do not reach. Asking for both in one combined quote up front avoids a surprise invoice later and lets you budget the full year rather than reacting to it visit by visit.

ScrubEase provides recurring janitorial, deep cleaning, and day porter programs for offices, corporate campuses, and professional firms nationwide, bonded and insured in all 50 states. Send your square footage, floor types, rooms in scope, and schedule and request a free quoteor call (737) 910-4127 to talk through your program.