TL;DR
Office cleaning bids are almost never comparable as received, because each bidder scopes the work differently. The single highest-value step is writing one scope and frequency schedule yourself and requiring every bidder to price that document. Without it, you are comparing three different jobs and calling the cheapest one the best value.
Why Do Cleaning Bids Come Back So Different?
Because each vendor is pricing a different job. Left to define the work themselves, one bidder assumes nightly service with restrooms, another assumes three nights a week with restrooms every other visit, and a third excludes floors entirely. The prices differ because the jobs differ, not because one vendor is cheaper.
Spreads of two to one on the same building are common and usually explained entirely by scope rather than by margin.
The fix is not a longer bid form. It is writing the scope once, on your terms, and issuing the same document to everyone. The broader picture of how commercial scopes are structured is in the guide to commercial cleaning scopes and vendors.
Write the Scope Before You Ask for Prices
Your scope document does not need to be long. It needs to be specific about four things.
Areas: what spaces are included, by name and by approximate square footage. Offices, restrooms, break areas, lobbies, conference rooms, stairwells, and any excluded space.
Tasks: what gets done in each area. Trash, surfaces, floors, glass, restroom fixtures, restock. Keep it to outcomes rather than methods.
Frequency: how often each task happens. This is where most of the price difference lives, and leaving it to the bidder guarantees incomparable numbers.
Periodic work: the tasks that happen monthly, quarterly, or annually rather than on the regular visit. High dusting, vent exteriors, interior glass, and floor refinishing all belong here.
Issue the same document to every bidder and require pricing against it. Anything they want to add can be listed separately as an option.
Give Bidders the Facts That Actually Drive Price
Vendors price risk when they lack information, and priced risk is expensive.
Headcount and occupancy pattern matter more than square footage in most offices. Fifteen people in 5,000 square feet is a different restroom and break room load than sixty people in the same space.
Access and hours change staffing cost. A building that permits work between 6 p.m. and 10 p.m. is cheaper to service than one with a narrow window or an escort requirement.
Floor types matter. Hard floors, carpeted areas, and specialty surfaces each carry different labor and periodic maintenance.
Security requirements matter. Badging, background screening requirements, escorts, and alarm procedures all add cost, and a vendor who learns about them after award will ask for a change order.
Tell bidders all of it. A vendor who bids blind either pads the number or discovers the problem later, and the second outcome is worse.
What Is Usually Excluded From an Office Cleaning Bid?
Consumables, periodic floor work, interior and exterior windows, and anything above normal reach are the four most common exclusions. Carpet and hard floor deep maintenance is frequently quoted separately. Supplies in particular are excluded far more often than buyers expect, which is why a low bid can carry a recurring cost nobody priced.
Consumables deserve their own conversation, because paper goods and liners are a real monthly number and the responsibility for stockouts is easy to leave undefined. That question is covered in who supplies paper goods under a cleaning contract.
Normalize the Numbers
Once bids come back, put them on one page in the same units.
Convert everything to a monthly figure. Vendors quote per visit, per month, per square foot, and per year, and mixing those is how buyers pick the wrong bid.
Add the excluded items back in at a reasonable estimate so the comparison reflects total annual cost rather than the headline. Small offices commonly spend $200 to $600 a month on routine service, with larger or higher-frequency programs well above that, and consumables can add $50 to $250 a month on top depending on headcount.
Separate one-time and periodic charges from the recurring line so an initial deep clean does not distort the monthly comparison.
Then look at what each bid assumes about labor hours. A number that implies far fewer hours than its competitors on the same scope is not efficiency; it is a scope the vendor does not intend to complete.
Reading a Suspiciously Low Bid
Low bids are not automatically bad, but they are always worth explaining.
Ask how many labor hours the price assumes and how many staff. If a vendor will not answer, that is the answer.
Ask what happens when the work takes longer than planned. Vendors under-quoting typically absorb it by shortening visits, and the effect shows up two months in as missed tasks.
Ask about turnover and whether the same people will service the site. Consistency of staff is one of the strongest predictors of consistent quality in facility services.
Ask what is not included that a competitor included. Sometimes the answer is genuinely a leaner scope you are happy with.
Compare the Terms, Not Just the Scope
Bids carry contract terms, and those terms matter as much as price over a year.
Look at the term length and the notice period for termination. A long term with a short notice period is very different from a long term with a ninety-day exit.
Look at the escalation clause. Annual increases are normal; uncapped ones are not.
Look at the correction process. What happens when a task is missed, how you report it, and how quickly it is expected to be fixed. That process is what you will actually live with, and it is the subject of handling complaints with a cleaning vendor.
Look at insurance and screening. Certificates of insurance, workers compensation coverage, and background screening practices are standard things to verify before award, not after.
After the Award
Keep the scope document. It is the reference for every conversation for the next year, and it is what you will reissue at the next bid.
Set a review point at ninety days. Early problems are almost always scope misunderstandings rather than performance failures, and they are cheap to fix at ninety days and expensive at nine months.
Track what you actually change over the year. That record is what tells you whether to keep the vendor or go back to market, which is the decision framed in when to renew and when to rebid.
FAQ
Why are office cleaning bids so different from each other?
Because each vendor scoped a different job. Without a written scope and frequency schedule from you, one bidder assumes nightly service and another assumes three nights a week. Spreads of two to one on the same building are common and usually explained entirely by scope.
What should I include in an office cleaning scope document?
Areas by name and approximate square footage, tasks per area stated as outcomes, frequency for each task, and periodic work such as high dusting and floor maintenance. Add headcount, access hours, floor types, and any security requirements, since those drive price more than square footage does.
What is usually left out of a cleaning bid?
Consumables, periodic floor maintenance, interior and exterior windows, and anything above normal reach. Paper goods are excluded more often than buyers expect, so a low bid can carry a recurring monthly cost that never appeared in the comparison.
How do I compare bids quoted in different units?
Convert everything to a monthly figure first, then add back a reasonable estimate for excluded items so you are comparing total annual cost. Keep one-time and periodic charges on a separate line so an initial deep clean does not distort the recurring comparison.
Is the lowest cleaning bid always a bad sign?
Not always, but it always needs explaining. Ask how many labor hours and staff the price assumes, what happens if the work runs long, and what was excluded that competitors included. A vendor who will not answer the hours question has effectively answered it.
What contract terms matter besides price?
Term length, notice period for termination, any annual escalation and whether it is capped, the process for reporting and correcting missed work, and proof of insurance and screening practices. Over a year those terms shape the relationship at least as much as the monthly number.
Running a Fair Comparison
Write the scope, issue it to everyone, normalize the numbers, and interrogate the outliers. That sequence turns a pile of incomparable quotes into an actual decision.
Every building is different, so the real number depends on size, headcount, floor types, access, and how often you want the work done. We are local, we price up front with no hidden fees, our crews are background checked, and booking happens online. See house cleaning services, then get a quote and we will walk you through it.