It’s Monday morning, the bins are still full, the break room smells like Friday, and you just remembered why. Your old cleaning company’s last night was Thursday, the new one doesn’t start until next week, and the keys already went back. For five days, nobody is cleaning your office.
To switch office cleaning companies without that gap, treat it as a sequencing problem, not a luck problem. Line up your new vendor and a short overlap before you give notice to the old one, so the two crews cross over instead of leaving a hole.
Three details decide whether it goes smoothly or turns into a scramble: the overlap week, the key and alarm handover, and the consumables. Plan those and your employees never notice the switch happened at all.
There’s one Monday in every transition that decides which of those two it looks like, and most managers never see it coming until they’re standing in it. Once you’ve made the call to replace the vendor, the whole job is making sure that Monday never arrives.
Start With the Contract, Not the Phone
Before you call a single new company, read what you already signed. Three facts in your current contract set your entire timeline.
- The notice period. Most commercial cleaning agreements require 30 to 60 days of written notice to cancel. That number is the earliest your old vendor can leave, so it anchors everything else.
- The auto renewal window. Many janitorial contracts renew on their own unless you cancel inside a specific window. Miss it and you can owe another full term even after you’ve moved on.
- Who owns the equipment. Note what belongs to the vendor. Soap dispensers, paper towel holders, and entrance mats often leave with the company that installed them.
Once you know your notice period, you know your calendar. If you have to give 30 days, your new vendor needs to be ready to start inside that window, not after it. Our guide to canceling a cleaning contract without paying for it walks through the notice and cure language in detail.
Line Up the New Vendor Before You Give Notice
Never give notice into a vacuum. The single most common way managers create a gap is telling the old company they’re done before the new one is confirmed and scheduled.
Do it in this order:
- Confirm your replacement. Choose the new vendor and get a signed agreement with a firm start date before you say a word to the current one.
- Get a walkthrough on the calendar. The incoming company should walk your building, see the layout and the traffic, and note the special surfaces, the security procedures, and the access details like keys, alarm codes, and parking.
- Hand them a written scope. Give the new vendor the same written scope of work you’d hold anyone to, so they price and staff the real building, not a guess.
With the new vendor signed and scheduled, giving notice becomes a formality instead of a leap.
The Overlap Week Nobody Plans
The scheduling choice that closes the gap for good is to start the new crew before the old one’s last day.
Even a few days of overlap removes the risk of an unserviced Monday, and a week or two is better. During the crossover, standards stay met because the old crew is still working, while the new crew learns the building in normal use instead of guessing on night one. If the old contract ends on the 30th, the new crew’s first night should be the 24th or 25th, not the 31st.
The overlap costs you a little on paper, a handful of extra service days. It buys you the one thing a transition can’t recover once it’s lost, a building that was never dirty. That trade is worth making every time.
The Key and Alarm Handover
Access is where a smooth switch quietly becomes a security problem.
On or before the old vendor’s last clean, collect every key and fob they hold and confirm it in writing. The same day their contract ends, deactivate their door codes and alarm credentials. This is a security step as much as a cleaning one. A former cleaning crew with live alarm codes is a hole in your building’s security that has nothing to do with cleaning.
At the same time, provision the new crew properly: their own keys, and an individual alarm code per cleaner rather than one shared code.
If you want the full protocol for how a professional crew should handle keys and codes, we cover it in background checks, keys, and alarm codes. Line the deactivation and the handover up on the same day and there’s never a window where the wrong people have access or the right people don’t.
The Consumables Transfer Nobody Thinks About
The keys aren’t the only thing that walks out with your old crew. The soap goes too, and the dispensers it sits in.
Many cleaning companies own the dispensers, the paper towel holders, and the floor mats they installed, and they take them when they go. The supplies inside them leave too. If nobody planned for it, your first morning with the new vendor starts with empty dispensers and no paper towels, which every employee notices immediately.
Head it off with two questions before the switch:
- What belongs to the outgoing vendor, and what stays? Get it in writing so there’s no dispute on the last day.
- Is the incoming vendor stocking day one? Confirm the new company brings or installs dispensers and shows up with consumables on their first shift, so the restroom is ready before anyone walks in.
Your First Week, and the Old Vendor’s Last
Two small confirmations keep the ending and the beginning clean.
Get the old vendor to confirm their exact last clean date by email. Don’t assume it, because a wrong assumption here is exactly how the gap opens. On the new side, set a point of contact, agree on how to report issues, and put a quick check-in on the calendar for the end of the first week to fix anything that needs adjusting.
The first week is when a new crew learns what “clean” means in your building. Handing them the scope, walking the space once together, and closing the loop after five days sets the standard while it’s still easy to set.
Switch Office Cleaning Companies, In Order
Run the transition in this sequence and the gap never opens:
- Read the contract for your notice period, auto renewal window, and equipment ownership.
- Choose and sign the new vendor with a firm start date.
- Book the walkthrough and hand over a written scope.
- Schedule the overlap so the new crew starts before the old one’s last day.
- Give notice to the old vendor in writing.
- Collect keys and deactivate old codes the day the old contract ends; provision the new crew.
- Confirm consumables and dispensers for day one.
- Get the last clean date in writing and check in at the end of the first week.
If you’d rather not project-manage all of that alone, a good incoming vendor does most of it with you. At Excellence Janitorial Services, we walk the building, build the scope around how your office actually runs, and coordinate the start so there’s no uncleaned day between the old crew and ours. If you’re planning a switch, a free walkthrough is the place to start.
Line the pieces up in order, and the only sign anyone gives you that the switch happened is that the complaints stop.
Frequently Asked Questions
How much notice do I have to give my current cleaning company?
Most commercial cleaning contracts require 30 to 60 days of written notice, but the only number that matters is the one in your agreement, so read it first. Watch for an auto renewal clause too, since missing its cancellation window can lock you into another full term even after you’ve given notice.
Can I have two cleaning companies at the same time during the switch?
Yes, and you should, briefly. A short overlap where the new crew starts before the old one’s last day is the cleanest way to switch. It costs a few extra service days and removes any risk of a gap, while letting the incoming crew learn your building before they’re on their own.
Who owns the soap dispensers and paper towel holders?
It depends on the contract, and often the outgoing vendor owns and removes them. Confirm in writing what belongs to the current company and what stays, and make sure your new vendor brings or installs dispensers and arrives stocked on day one, so you don’t start with empty holders.
How long does it take to switch office cleaning companies?
A typical transition runs about four to six weeks, most of which is your contract’s notice period. The active work, the walkthrough, the scope, the overlap, and the handover, fits inside that window, so the notice period usually sets the pace rather than the new vendor’s readiness.
What do I do about keys and alarm codes when I switch cleaners?
Collect all keys and fobs from the old vendor on or before their last clean, and deactivate their door codes and alarm credentials the same day their contract ends. Issue new keys to the incoming crew and give each cleaner an individual alarm code. Treat it as a security step, not just an operational one.
Do I have to tell my current cleaner I’m leaving before the new one starts?
Give notice only after your new vendor is signed and scheduled, never before. Telling the current company first, without a confirmed replacement and start date, is the most common way managers end up with an uncleaned building. Line up the new crew, then give notice.