How to Get Rid of Drain Flies

Pesky drain flies can quickly become a nuisance in any home or business, leaving you feeling frustrated and eager to find a solution. These tiny, flying insects are commonly found around drains, hence their name. While they don’t pose any serious health risks, their presence can be unsightly and unhygienic. Luckily, with the help of South West Plumbing and some simple techniques, you can bid farewell to these bothersome pests.


Before diving into elimination methods, it’s essential to properly identify the culprit. Drain flies are small, usually measuring around 1/8 inch in length. They have a fuzzy appearance and are often tan or dark gray. You’ll most likely spot them near drains or in damp areas, such as bathrooms, kitchens, or basements. Identifying the source of the infestation will help you tackle the problem effectively.

Regular Cleaning:

Maintaining a clean environment is the first line of defense against drain flies. Make it a habit to regularly clean your drains using a mixture of hot water and mild detergent. This helps remove organic matter, grease, and debris that can serve as breeding grounds for the flies. Additionally, pay attention to areas with standing water and remove any potential sources of moisture.

Boiling Water:

A simple yet effective remedy is pouring boiling water down the infested drain. This method can kill both the flies and their eggs, providing temporary relief. Be cautious not to splash yourself and repeat the process several times until the infestation subsides.

Biological Drain Cleaner:

Consider using a biological drain cleaner, which contains beneficial bacteria that eat away at the organic matter in your drains. These products are eco-friendly and can help prevent future infestations by eliminating the flies’ breeding sites.

Vinegar and Baking Soda:

A natural and inexpensive solution is a mixture of vinegar and baking soda. Start by pouring half a cup of baking soda down the drain, followed by half a cup of vinegar. Let the mixture sit for a few hours or overnight. Then, flush the drain with hot water. The chemical reaction between the vinegar and baking soda helps break down organic materials and removes the flies’ habitat.

Commercial Drain Fly Products:

Various commercial products specifically designed to combat drain flies are available in the market. These may come in the form of gel, foam, or liquid. Follow the instructions provided by the manufacturer to ensure safe and effective use.

Drain Screens:

Installing drain screens or stoppers can act as a barrier, preventing drain flies from entering your pipes. These screens are easily available and can be a long-term solution to avoid future infestations.

Seek Professional Help:

If your efforts to eliminate drain flies are unsuccessful or if the infestation seems beyond your control, it’s time to call in the experts. Professional plumbers, like those at South West Plumbing, have the knowledge, experience, and specialized tools to handle persistent drain fly problems. They can conduct a thorough inspection, identify the root cause, and provide targeted solutions.

Prevention is Key:

While dealing with an existing drain fly infestation is crucial, preventing future occurrences should be a priority. Regularly clean and maintain your drains, fix any leaks promptly, and keep your living spaces dry to discourage these pests from making a comeback.

South West Plumbing Can Help!

Drain flies can be a frustrating problem to deal with, but with the right approach and the assistance of South West Plumbing, you can reclaim a fly-free environment. Remember to identify the source, clean regularly, and use natural or commercial remedies as necessary. If all else fails, don’t hesitate to seek professional help. By following these steps and remaining vigilant, you can bid farewell to drain flies and enjoy a pest-free home or workplace.