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How to Get Rid of Drain Flies 3 Steps

cedarcide blog post image, how to get rid of fruit flies: 3 Steps

If you’re seeing flying bugs inside, you could have drain flies. 

Also called sink flies, these grayish moth-like annoyances can stick around for a long time if you don’t act fast. With the below 3 tips, you can solve or prevent a drain fly problem quickly and easily—and best of all, you won’t have to fill your home with poisonous chemicals to get the job done. 

how to get rid of fruit flies: 3 Steps, prevention

Prevention is the easiest type of pest control—and thankfully preventing drain flies is as easy as they come. In fact, you’re probably already doing most of the essential preventative steps in the course of your daily housework

It’s all about limiting moisture and maintaining cleanliness, especially in humid spaces like bathrooms, kitchens, laundry rooms, and basements. 

Just keep your drains and sinks clean and free of organic debris, keep your plumbing in good working order, clean up water spills ASAP, and avoid standing water in drainage trays, planters, trash and recycling bins, etc and you’ll do just fine.

how to get rid of fruit flies: 3 Steps, confirm you have drain flies

Because fruit flies, gnats and drain flies are all very small and usually isolated to kitchens and bathrooms, it’s easy to mix them up. But if you notice smaller than usual flies around sinks and drains, that not only fly but hop, and they resemble little moths, then no question you have drain flies. 

But if they’re too small or fast to tell for sure, here’s a quick way to find out whether or not you have drain flies:

Drain flies live in drains to feed on all types of sludge and scum but often leave their homes at night to explore, and you can use this little habit against them.

Just place two strips of duct or masking tape sticky-side-down over the affected drain in the shape of an X. Leave the tape on overnight and the drain unplugged and open. If you do have drain flies, when you check the tape in the morning, there will be at least a couple stuck to the sticky side. Remember, drain flies look like small moths, either gray or black. 

If what you find doesn’t look like a small moth, you likely have fruit flies. Don’t sweat it though, we have you covered for that too. Click here and we’ll show you exactly how to get rid of fruit flies in just 3 simple steps, all without having to use toxic bug sprays.  

how to get rid of fruit flies: 3 Steps, kill & repel without toxic pesticides

So you got drain flies, now what? 

First, let’s get those gross things out of your sink. You have a couple options. You can start by spraying your sink and down into your drain with a 1-to-3 mixture of water to standard 5% vinegar. Or, you can simply pour a pot or kettle worth of boiling water down the affected drain (just be very careful when you do it).

Either way, follow up with a deep clean of your drain and sink. There’s something in your drain that’s attracting drain flies and we need to get rid of it. 

After the vinegar or boiling water and after deep cleaning your sink, there’s one last thing to do. Using family-safe and non-toxic bug spray Cedarcide Original, lightly spray your drain (no more than 2–3 trigger sprays). This will help kill any remaining flies and keep away those that were gone when you initially treated and cleaned your drain. 

Family-Safe Indoor Bug Spray, Cedarcide Original

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  1. I find that it is helpful to repeat the original treatment in two weeks to kill any newborns that may have survived in the larva stage and before they are old enough to reproduce.

    1. Jonathan At Cedarcide

      Great suggestion, Sandra! Thanks for the comment 🙂

  2. Laurie Martindale

    I Love your Cedarside I have been using it for Year’s not only for my little dog for fleas but also myself because mosquitos Love me & also spray outside on my porch Love all your products & they smell great. Thanks for sharing about drain fly’s I don’t have them but my brother does we didn’t know what they were until now. You guys Rock.

    1. Jonathan At Cedarcide


      So glad to hear it helped. They can really be tough to get rid off, but with the right know-how it actually becomes a very easy and quick process. Thanks again for your support, it means the world to us.

  3. It seems we always have something flying around in our kitchen and I have never thought of drain or sink flies. I can’t wait to try your tape test.

    1. Jonathan At Cedarcide

      Hi, Susan!

      Rest assured that’s very normal, most people do not realize they have drain flies or even consider this bug as a possibility, but they’re surprisingly common. The tape trick will help you know for sure though. And we’re always here to help if you need anything else 🙂 800-842-1464

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