Sulfur or Gassy Smell in the House? What To Do?

rotten egg smell

You may be smelling a gas leak if you’ve noticed a strange, foul rotten egg odor in your home but can’t quite identify it. It can indicate a problem if it’s sulfury and smells like rotten eggs. In this article, we’ll tell you what to do if you smell sulfur or rotten egg in your home and where the odor might be coming from.

Find the source of the rotting eggs smell ASAP. If it’s not as serious as a gas leak, these other five issues could be to blame

If you notice a sulfur smell near any gas appliances in your home, it’s crucial to take action immediately. This could be a sign of a natural gas leak, which can be very dangerous. We’ll dive more into the signs to watch out for and what to do if you suspect a natural gas leak.

Is it coming from the Bathroom or Kitchen?

If the sulfury smell comes from your bathroom check the sink overflow hole. If the smell is from the kitchen sink, it’s likely due to a problem with your sewer line. This is usually caused by bacteria build-up in the drain, which creates hydrogen sulfide gas. This gas is what causes the rotten egg smell. You can try a few options you will read about in this post to fix this problem.


While a sulfur smell in your bathroom or kitchen is unpleasant, it can indicate a major problem or, It can simply be caused by a dry P trap. When a p trap dries, it will cause a sewer smell if you haven’t used the sinks recently.

I smell rotten eggs, do I have a gas leak?

If you smell rotten eggs near any natural or propane gas appliances in your home, it’s crucial to take action immediately. Natural gas and propane are colorless and odorless. Still, a distinctive odor, mercaptan, similar to rotten eggs smell, is added to them.

Mercaptan is added to warn people about contaminated gas and help to recognize it quickly. This could be a sign of a natural gas leak, which can be very dangerous.

What are the signs of a natural gas leak?

There are several signs that you may have a gas leak:

It smells like rotten eggs

You see a white cloud, mist, fog, or bubbles in standing water

You hear an unusual noise like roaring, hissing, or whistling

Vegetation appears dead or dying for no apparent reason

If you notice any of these signs, you should evacuate the area immediately and call 911 or your utility company.

What should you do if you think you have a gas leak?

If you suspect any gas leak:

Leave the building immediately and call 911.

Do not smoke, or use electrical appliances, including cell phones, within 15–20 feet of the area where you sense the leak. These items may produce a spark that could ignite the gas and cause an explosion.

Do not attempt to find the source of the leak yourself.


If you notice any signs that you have a gas leak, the first thing you should do is leave the building and call 911. Do not try to find the source of the leak or turn off any appliances, as this could be dangerous. Let the professionals handle it.

Also Read:   The 5 Best CPAP (Sleep Apnea) Machines

Is the rotten egg smell from your kitchen or bathroom?

How do I know I have a sewer gas leak?

Sewer gasses are created when water and waste don’t flow properly through the drainage system. If you smell a sewer-like smell in your home, it could be a sign of a sewer gas leak. This gas can be dangerous and may include toxic chemicals like methane and hydrogen sulfide.

Hydrogen sulfide is a colorless and flammable gas with a strong rotten egg smell. It’s created when bacteria break down organic matter, and it can be present in both septic systems and natural gas. While hydrogen sulfide is not always dangerous, it can be lethal in high concentrations.

Some side effects of exposure to hydrogen sulfide gas include:




Nausea and vomiting

Shortness of breath

Skin irritation

If you notice any of these symptoms, it’s important to leave the area immediately and get some fresh air. If the symptoms persist, call 911.

How do I get rid of the rotten egg smell?

If your bathroom or kitchen sink smell like rotten eggs and it’s not from a dry or leaky p trap , you can try the steps below:

If your kitchen or bathroom sinks are smelling like sulfur, there are a few things you can try to get rid of the odor:

Pour boiling water down the drain: This will help kill the bacteria causing the odor.

Use a drain cleaner: You can find these at most hardware stores. Follow the instructions on the bottle.

Make your own drain cleaner: Mix ½ cup baking soda with ¼ cup vinegar and pour it down the garbage disposal. Wait 30 minutes, then flush with hot water.

You can also try a few preventative measures to keep your drains from smelling in the future:

Pour boiling water down the drain or garbage disposal once a week: This will help to kill any bacteria that is starting to build up.

Run hot water down the drain after each use: This will help to flush out any food or grease that is starting to build up.

Use a drain strainer: This will help catch any food or debris before it can go down the drain.

Final thoughts

We all want our home to smell like a spa, a gassy smell in the house can be unpleasant. However, there are a few things you can try to get rid of the odor. If the problem persists, you may need to call a plumber immediately.

So, if you’re experiencing a gassy smell in your home, don’t panic! It could be something as simple as an empty P trap or a gas leak. However, it’s always best to err on the side of caution and evacuate the area immediately if you smell rotten eggs. If you’re unsure whether or not you have a gas leak, give your gas company a call. They’ll be able to help you out.

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