A complete manual to help you stay calm when your toilet clogs in a rental apartment. This guide covers practical steps for emergency procedures using a plunger, hot water, and baking soda, as well as how to understand cost responsibility and properly contact your property manager.

Reviewed by: Nobuyuki MoriPresident, M-Assets Co., Ltd. / Licensed Real Estate Transaction Specialist (Miyagi #018212)
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When your toilet suddenly clogs, it's natural to panic, but staying calm is key to preventing the situation from getting worse. This article explains what to do when your rental toilet clogs, including step-by-step instructions for handling it, how cost responsibility is determined, and how to contact your property manager.
When your toilet is clogged, first check the water level in the bowl.
A plunger is a reassuring tool to have in a rental apartment. You can purchase one at home improvement stores or 100-yen shops.
Steps:
Tips:
Steps:
This method is effective for grease-based clogs.
Steps:
This method is limited to minor clogs. It won't be effective if the blockage is caused by solid objects.
Products like "Pipe Unish" and "Pipe Man" dissolve debris in drain pipes, but they're not immediate-acting (they need 30 minutes to overnight) and won't help if the clog is caused by solid objects other than toilet paper.
In these cases, you'll need to call a professional:
Who pays for toilet clog repairs in a rental depends on the cause of the clog.
| Cause | Who Pays |
|---|---|
| Tenant misuse (foreign objects, large amounts of toilet paper) | Tenant |
| Wear from age or structural problems in drain | Landlord (property manager) |
| Tenant negligence (beyond normal use) | Tenant |
| Aging or blockage in drain pipes | Landlord |
Key Points:
Before contacting your property manager, check:
Here are typical costs if you hire a professional directly rather than through your property manager:
| Service | Typical Cost |
|---|---|
| Minor clog removal (plunger, etc.) | ¥5,000–¥15,000 |
| High-pressure drain cleaning | ¥15,000–¥30,000 |
| Foreign object removal (includes camera inspection) | ¥20,000–¥50,000+ |
For peace of mind, choose a major chain (such as Clos or Sanitary Service) or a licensed contractor your property manager has partnered with. Be cautious of flyer companies advertising "low prices"—they often have billing issues.
Keep these daily habits in mind to prevent toilet clogs:
Many toilet clogs in rentals can be resolved on your own if you follow the right steps.
Simply having a plunger at home can help you deal with most toilet clogs. Proper daily use and regular maintenance will minimize the risk of clogs.
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