Arrrrrgh flies. It's like the amityville

[Possiblyoutedled]

Hi we have a ten yr old loft conversion with one dorms window. During the winter I cannot open the windows as if I do there are millions of vile flies in the frame which seem a bit dozy. They look like house flies and buzz a bit. Omg it's making me itch please help. I think it maybe cluster flies but what can I do about them?

I think they will be clister flies. They hibernate and accumulate round windows. I had them once in a rented cottage, only round a skylight in the loft. Spray with insecticide as they may be hibernating not dead.

You can hoover them up, and clean the windowframe. I think they can smell where there chums have been so keep coming back. Possibly a cleaning spray with bleach would remove the scent.

A vac with removable bag might be more pleasant to use.

cluster flies

You have my sympathies. Our current house was empty for 2 weeks before we moved in and the bathroom was literally black on every surface with what we thought were dead flies. DH went in to give a quick squirt of fly spray just to kill off any stragglers and it sounded like a 747 taking off - they were all alive still and rose as one . Still gives me creeps to think about it. We were plagued every autumn and tried sprays and bleach and all sorts. In the end we got a pest control person who put a smoke bomb thingy in the loft recess and that did the trick. Still see the odd one, but no more than that.

Yuck. I think in going to get pest control actually because its revolting. I hate not being able to open my window too.
Thanks