Avainlippu

Drain fly control

Perhossääski

If you see small grey flies indoors, they may be drain flies

Drain flies thrive in damp environments, especially in drains and floor traps.
If you see them indoors, it is not an isolated sighting but a sign of a breeding source nearby.

The problem is often noticed only once they start appearing repeatedly in the same areas.

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Where drain flies come from

In practice, drain flies are always linked to moist organic buildup.

They are commonly found in drains, floor traps and other damp structures where residue accumulates. This makes the problem local but persistent.

Drain flies reproduce in drains without being noticed

A single drain or floor trap can act as a continuous breeding source if it is not properly cleaned and treated

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Why drain flies keep coming back

This is one of the most common situations we see in real cases.

Adult flies may disappear quickly, but the breeding source remains.
That’s why new flies continue to appear.

In drain fly control, removing the source is key

Eliminating visible flies is not enough.

If the organic buildup inside the drain or structure is not treated, the problem will continue. Control must always focus on the source.

When control is needed

If small flies keep appearing in the same areas, the problem will not resolve on its own.

Especially in kitchens, bathrooms and restaurants, the situation should be handled quickly.

How the control process works

The process begins by locating the breeding source.

Drains and affected areas are then treated to remove the growth environment.
At the same time, steps are taken to prevent new flies from developing.

Need help with drain fly control

We provide fast service across Uusimaa in homes, housing companies and commercial properties.

With drain flies, correct treatment is essential, so the situation should be assessed early.

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