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Why Does My Clean Toilet Smell?
Why Does My Clean Toilet Smell?
4.8 RATING

Why Does My Clean Toilet Smell?

A clean toilet shouldn't emit unpleasant odors. However, sometimes, even after a thorough cleaning, a lingering smell can persist. In this article, the plumbers at…

June 23, 2026
Why Does My Clean Toilet Smell?

A clean toilet shouldn't emit unpleasant odors. However, sometimes, even after a thorough cleaning, a lingering smell can persist. In this article, the plumbers at Mr. Rooter Plumbing explore the common causes of toilet odors and provide practical solutions to eliminate them.

Our Customers Reviews

Chahib Chakrome

Summit, NJ

The service provided was great, nothing to say about the work of the plumber. 5 stars to him. But the company charges felt way too much for the work. We would have liked to have the same plumber take care of other things in the house, but every time he check how much extra the company will charge for the job, the price just got too much. The plumber did an amazing job he selected a beautiful faucet to replace our old one. He did his best. But the company prices have no room for negotiation.

Tiffany DeSande

Plainfield, NJ

A million stars!!!! Steve and Lucas were absolutely amazing. My parents pipes burst and within 4 hours of calling they came and fixed everything!!! Very nice guys and dealt with my panicking. I will always use them if needed in the future and you all should too!!! Thank god for people like this!!! Thank you so much guys!!!

Naomi Langer-Seltzer

New Brunswick, NJ

We got very quick service, I think the plumber actually arrived in less than an hour! After reviewing what was happening, he gave us our options and performed the option we selected. This happened in the late afternoon or early evening. It was already dark and there was a lot of snow on the ground.

Steve Smith

Mountainside, NJ

I needed immediate, same day service in the early evening at my home. I went to the internet and looked up plumbing services that offered "24-hour, 7-day a week" availability. The first 3 places I called said that they could not get to me until the following day. Then I called Mr. Rooter. They were courteous and promptly got a technician to my house within an hour and a half. The technician, Lucas Kaufmann, was exceptional. The job was not easy, but he figured the problem out and got me all fixed up within an hour's time. Moving forward, I…

Stephanie Brown

Cranford, NJ

Despite what was quite obviously a busy day (day after Thanksgiving at 10pm) TJ came out and did not leave until the job was done! There were several setbacks, which at the late hour might have prompted him to leave- but he chose to stay and continue until the job was complete! I only have one bathroom so I was really hoping he could make it work, and he really did a wonderful job! So thankful for all of his help! I highly recommend TJ!

Shaheen Dhanani

Union, NJ

This is my second time using Mr. Rooter and I have to say they are an excellent company of experienced professionals! The service techs were courteous, experienced and actually spent time trying to figure out the issue before proposing the solution. They were also patient and answered all my questions without rushing the work. I will be using them again.

Christie Murphy

Montgomery, NJ

TJ was amazing! 10/10 recommend this company. We were in an emergency state of panic with a burst pipe in the middle of a bad snowstorm. TJ came with knowledge, professionalism, kindness, and found the root of the problem within five minutes of being here. We will be using him again in the spring to fix an outdoor issue he found!

Alan Abraham

Clark, NJ

The technicians were friendly, professional and knowledgeable. The price was too high I believe, but the technicians had no control over that. The technicians took their time and did a great job. I would use them again and also recommend them.

Amy Swart

Berkeley Heights, NJ

Excellent service! Charles and Nicholas of Mr. Rooter arrived to my scheduled service a few minutes early, wore sanitary shoe coverings, and were extremely professional. They found the source of my leak quickly and fixed the issue. While they here, I requested an additional hydraulic heating inspection which they accommodated. They were very knowledgeable and provided helpful tips. I highly recommend this team and I will definitely call them for all future plumbing needs!!

JACKY Coppola

Wall Township, NJ

TJ came to my aid as the water pipe froze in my house. Although nothing could be done he gave me hints of what could be done my me which was very helpful. I found TJ very professional and caring about my situation. The best part of the very long night was the dogs adored him one wanted to accompany him to his next job. Thank you for employing such an amazing man. Plus today there is water running in the house. Thank you TJ and thank you Mr. Rooney plumbing for employing a man with helpful hints!!!!!

  • Clogged Drain

If you’ve taken your time to clean your toilet but there’s still a lingering smell, a clogged drain could be the culprit. A buildup of hair, soap scum, or other debris in the toilet drain pipe can produce a foul odor. If the clog is left unaddressed, it will worsen and cause more problems, including sewage backup and unhygienic conditions. Luckily, minor drain clogs are easy to clear using a mixture of baking soda and vinegar.

Pour one cup of baking soda into the clogged drain and add one cup of vinegar. Cover the drain with a plug and let the mixture sit for 15 minutes. The reaction between baking soda and vinegar will loosen the clog. Pour boiling water down the drain to clear the loose debris. If the drain is still clogged, call a local plumbing repair service in Hillsborough Township to help you clear the blockage.

  • Faulty Wax Ring

A wax ring is a gasket that creates an airtight seal between the base of the toilet and the closet flange. This component prevents water and sewer gas from escaping. Even if your toilet is sparkling clean, a faulty wax ring can allow noxious sewer gases to waft into your bathroom. The wax ring can wear out as a result of improper installation or the toilet rocking back and forth. The first sign you’ll notice when the wax ring wears out is water pooling around your toilet. You may also notice a damp or spongy floor. A wo-out wax ring will need to be replaced to fix the problem and restore proper functioning. However, for a toilet that rocks back and forth, you’ll have to call a local plumbing company to check the condition of the toilet and make the necessary repairs. If repairs won’t address the problem, it may be time to consider toilet replacement.

  • Plumbing Vent Issues

Vent stacks, also known as plumbing vent pipes, remove sewer gases from the plumbing system. If the vent stacks are blocked, sewer gases can back up through your toilet drains, causing a foul odor. You may also notice gurgling sounds from the toilet when you flush. Get in touch with a local plumber to help you unclog your vent stacks.

  • Mold and Mildew

Is there a musty odor coming from your toilet even after you’ve done thorough cleaning? If so, the culprit may be mold and mildew growing in the tank or under the rim. This problem is common in bathrooms with high humidity and those without proper ventilation. Unrepaired water leaks can also create a thriving environment for mold in the toilet and other areas of your bathroom. The appearance of mold in your bathroom is an indication of poor ventilation and excess humidity.

Mold growth inside the toilet tank is easy to resolve—pour one cup of baking soda into the tank and one cup of vinegar. Flush the toilet several times to remove the mold. For the mold growing under the rim, spray a solution of baking soda and vinegar around the area and let the mixture sit for about one hour. After waiting for one hour, use a toilet brush to scrub the surface and rinse with clean water. If your bathroom has poor ventilation, reach out to a professional plumber to install exhaust fans and fix water leaks.

Do you need professional toilet repair or replacement? Get in touch with Mr. Rooter Plumbing.

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