What Should I Do When a Toilet Overflows at Work?

Who Cleans Up When a Toilet Overflows at Work?

Your employer decides. We found no federal rule that assigns this job to staff, janitorial or a cleaning crew, so your workplace's written policy and your lease set the answer.

The OSHA sanitation standard says places of employment must be kept clean to the extent the work allows, but it does not say who mops up an overflow.

• Trained staff can handle a small, clean-water spill that stays in the restroom.
• Facilities or janitorial staff usually handle waste once the area is safe.
• A restoration crew takes over once water spreads beyond the restroom, covered in the decision table below.

What Should Staff Do First When a Toilet Overflows at Work?

Stop the flow, keep people out of the restroom, and tell facilities or the building manager first. Then tell your supervisor. In a leased space, put it in writing to the landlord or property manager once the area is safe.

1. Do not flush again, and keep people out of the restroom. Standing water on a shared floor is a slip hazard, and OSHA's walking-working surfaces standard requires workroom floors to stay dry so far as the work allows.
2. If you know where the valve is and can reach it safely, close it. If not, call facilities to shut the building supply. See the home guide to stopping a toilet overflow for how to find and close the valve, and how to find the building's main water shutoff valve if that valve will not close.
3. If the valve closes but water keeps running, see what it means when water still drips after the main is off.
4. Block off the area with a sign or cones so no one slips on the wet floor.
5. Call facilities or the building manager, then your supervisor.
6. Note the time you first saw the overflow and who you told, for the incident log.

If the overflow started at the supply line rather than the bowl, and the weather has been cold, check whether a frozen toilet supply line is the cause.

Can We Keep Using the Other Restrooms?

Usually yes. Close the affected restroom until facilities clears it, and use the others in the meantime.

Then check the count. The OSHA sanitation standard sets a minimum number of toilets for employees, based on headcount. Ask facilities how many restrooms are still open and whether that still meets the minimum for your floor.

Is the Water Dangerous, and What Protective Gear Do Workers Need?

Treat it as contaminated. The CDC advises rubber boots, goggles and gloves for sewage cleanup, and a waterproof bandage over any cut. Staff without training should not clean up waste.

• Rubber boots
• Goggles
• Gloves
• A waterproof bandage over any cut, put on before you touch the water

Water from a toilet bowl can carry waste and germs, so treat it the way you would what black water means for a leak. OSHA's sanitation standard also says the sewage disposal method must not endanger employees.

For what to keep, clean and throw out once the area is safe, see home cleanup: what to keep, clean and throw out. Keep workplace cleanup to roles and gear; let facilities or a crew judge what is salvageable.

When Can Staff Clean Up, and When Do We Need a Crew?

Trained staff or janitorial can handle a small clean-water spill that stopped quickly and stayed in the restroom. Call a restoration crew if standing water remains after cleanup, the floor cannot dry within 24 to 48 hours, or water reached another room.

If any one row applies, escalate to the next. These are our planning thresholds, a judgment call, not a legal rule.

See what a restoration crew costs and when you need one before you call.

What If the Water Has Blood or Body Fluid in It?

Raw sewage alone is generally outside the bloodborne pathogens rules. An OSHA interpretation letter on a ruptured sewage line states that OSHA does not consider those hazards to be related to bloodborne pathogens.

If you see blood, vomit or other body fluid, those rules can apply. Stop, and ask facilities or trained staff to handle it rather than cleaning it up yourself.

What If Water Reaches Another Floor or a Neighboring Office?

Tell the building manager and the other tenant right away, and tell your insurer too. Block off the wet area, since standing water on a shared floor is a slip hazard the employer must address.

• The building owner or manager
• The tenant in the space above or below
• Your insurer

Photograph the wet area and any damage before cleanup starts, in every space the water reached.

If water is coming up through a floor rather than down from above, see why water keeps coming up through a floor. If the backup looks like sewage rather than overflow water, see what a sewer backup looks like and what to do while you wait.

Who Pays for the Cleanup in a Leased Workplace?

Your lease decides first, so read its repair and maintenance clauses before you assume. If the lease is silent, fault often decides, and pipes that serve the whole building are often the landlord's responsibility. Ask your property manager or a lawyer before you assume either way.

This is general information, not legal advice.

• The repair and maintenance clause
• Who maintains the building's shared plumbing
• Tenant-installed fixtures, if any were added after move-in
• Notice requirements for reporting damage to the landlord

Does Our Commercial Insurance Cover a Toilet Overflow?

It depends on the policy wording. Many commercial policies treat sewer or drain backup as a separate endorsement, so check your declarations page before you assume you are covered. This is general information, not legal advice.

• A sewer or drain backup endorsement, and whether you have one
• A flood carve-out that can exclude the loss again if flooding caused it
• Business income wording, including when the coverage clock starts and how long it pays
• The policy limits that apply to this kind of loss

Document the blockage promptly, for example with a contractor's video, since an insurer may argue the cause was a flood rather than a backup.

For the same coverage question written for a home, see the homeowner version of the same coverage question. Commercial policies differ, but the declarations-page habit is the same.