09/23/2026
A few tiny flies buzzing around the sink are easy to swat and forget. When they keep coming back, though, they are usually telling you something about what is happening down the drain.
Drain flies breed in the gunk that collects in slow or dirty pipes, and steady activity can indicate buildup, a venting problem, or septic trouble beneath it all. Pay closer attention if they come with other clues, like a sewer smell, water that drains slowly, or a gurgle from the pipes when nothing else is running.
One or two is a nuisance. A recurring swarm near your drains is a sign to look deeper. See how we handle drain and septic service at redmondsplumbingandelectricalinc.com/services.