Exploring New Home Construction

Pests That Are Attracted To Your Home's Plumbing

In San Diego, two women found a 5-foot long snake coming out of a toilet located in their office building. The animal services employee who was called to trap the snake said he thought the snake was a pet. The landlord confirmed another tenant in the building had a pet snake, but it wasn't clear at the time of the news story if the snake belonged to the tenant. While finding a snake in your plumbing isn't a likely possibility, there are several other types of pests that are attracted to plumbing and water.


Mice can infiltrate your home through teeny cracks and gaps around plumbing and utility lines. And, according to Orkin.com, mice can get into drainage pipes and make their way into your home through drains in the sinks and bathtubs. A mouse can squeeze through openings about the size of a dime, so be sure the drains in your sinks and bathtubs have drain traps that can prevent them from squeezing through.

Once inside your home mice can breed and populate your home with over 200 mice within a few months, especially if the conditions inside your home are ideal for them. All they need is warmth and a food supply.

If you have mice, it's a good idea to determine how they are getting into your home before you begin to exterminate them. That way, you can block the openings to keep more mice from entering your home. Call a plumbing service to look for cracks in your drainage pipes, and to seal off the gaps around the plumbing through your home.

Drain Flies

If you see tiny bugs coming out of your sink or bathtub drains, you may have a problem with drain flies. Drain flies look like house flies but are only 1/5 of an inch long. Drain flies breed where there is moisture and feed off of the bacteria, which makes kitchen sink drains ideal for their needs.

As many as 200 drain fly eggs can be found in an infested sink drain. The eggs hatch within 2 days and become adults in about 2 weeks. As you can see from these numbers, you could see a few drain flies one day then be overwhelmed with several hundreds of them just a few days later.

To deal with drain flies, you'll need to get rid of their breeding ground—the bacteria-laden slime inside your sink drain. While there are chemical drain cleaners on the market, your best bet would be to contact a plumber to professionally clean your drains.


Termites need water to survive. While they do not typically enter homes through drainage systems, they do look for moisture to keep themselves hydrated while they are feasting on the wood in your home. They also need moisture to form the tunnels they move through. Termites look like ants with wings, and sometimes their wings fall off. Of course, if you see termites or their wings inside your home you will need to call an exterminator to get rid of them. It's also a good idea to call a plumber to see if you have a hidden plumbing leak in your home.

Termite colonies typically live in the ground near the structures they feed off of. A termite colony can reach numbers as high as 2 million. Imagine this many termites seeking out moisture in your home. A plumbing leak in your home can attract the termites to the wood nearby, which could result in weakened floorboards in areas such as your bathroom.

While it's rare for plumbing problems to involve snakes, there are several other pests that are attracted to the plumbing and water in your home. If you notice mice, drain flies or termites in your home, you may need to call your plumber in addition to your exterminator.

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