5 Ways to Deal with Drain Flies Permanently

Drain Flies Control Singapore

Have you ever noticed those little insects lingering around kitchen sinks and bathroom drains? What you’ve likely seen are called drain flies. At large numbers, they can be enough of an annoyance to warrant an appointment with Singapore pest control specialists. 

While drain flies don’t directly harm humans or pets, they can trigger allergic reactions and spread bacteria. Getting rid of them early on will help prevent health issues. 

Let’s review the possible reasons behind your drain fly problem and how to deal with it. 

What Causes Drain Fly Infestations?

Drain flies live and breed in environments with stagnant standing water and decaying organic matter. This is why we typically find them in drains, pipes, toilets, or around your trash. 

These insects are so small that they can easily enter any property and look for a suitable habitat–preferably where there’s sewage. 

If you’re unsure if you’ve found all the possible problematic areas in your property, you can have your Singapore pest control provider fully assess the area.  

How to Get Rid of Drain Flies Once and for All

Short of calling for professional pest control in Singapore, here are some solutions you can try if you’ve got drain flies at home or in your establishment. 

Pour Hot Water Down the Pipe

One of the simplest fixes you can do is pour a pot of boiling water down the drain. You can do this several times weekly to ensure you’ve killed the flies, larvae, and eggs.

However, this method isn’t advisable if the drain flies are in PVC pipes. You risk melting the material if the pipe is clogged, as the hot water would sit instead of completely passing through. 

Use Baking Soda Solution

Besides pouring hot water, you can also use a mixture of baking soda and vinegar. These popular DIY cleaners will kill the drain flies while also clearing away the organic matter where the flies are breeding, such as hair and grease. 

You can use this solution alongside the hot water method for more effective results. Simply pour the mixture into the drain, leave it overnight, then wash everything down with the boiling water.

In any case, avoid pouring chemical pesticides down the drain. Their chemicals can contaminate our waterways and cause significant harm. Even Singapore pest control services use eco-friendly products for dealing with flies. 

Keep the Surroundings Dry

Earlier, we discussed how drain flies thrive in places with standing water. This makes it important to keep your spaces dry as much as possible, such as by: 

  • Checking and repairing any leaking plumbing fixtures.
  • Mopping up or vacuuming spills and other puddles on the floor.
  • Removing any standing water in your garden or yard, if you have one.
  • Keeping your rooms well-ventilated to reduce moisture.

Close Unused Drains

If you have any drains that are only used occasionally, consider getting a stopper to close the drain off until you have to use it again. 

Doing so further reduces the places where drain flies can breed. 

Clean the Sink and Drains

It’s also vital to give your sinks and drains a deep clean to minimise any buildup that could form clogs that attract drain flies. 

This can involve scrubbing everything down with a pipe brush, baking soda, and vinegar. However, do try to avoid using chemical cleaners, which can further pollute our waters. 


Drain flies seem rather harmless in small numbers. However, it’s best to nip this infestation in the bud before it gets harder to manage. With these DIY solutions and deep cleaning, you can eliminate the drain flies hovering around the place.
If the situation seems out of control even with all these tips, it always helps to have on-call pest control in Singapore. They have the expertise to develop long-term eco-friendly treatment plans for your problem.