Fly infestation in roof

[Offtothesticks]

Any chance you could help with the name of a good pest company that could deal with a cluster fly infestation in the roof that won't charge £200+. That seems like a lot of money? I live in Suffolk. Any help appreciated.

They’re easily dealt with yourself, we have them every year and just shove a fly killer “bomb” up there. The worst bit is the dead flies all over everything.

https://amzn.eu/d/5DqpYuG

We just leave them, that's the advice we were given. They are cluster flies and come in when it's cold and leave in the warmer months. If you kill them you end up with a loft full of dead flies and new ones come back the next year... It becomes an endless cycle of vacuuming up flies!

Buy a load of fly paper and lay it out. Wait for a week then go back and see whether it needs replacing.

The bigger the area the more flies it will catch !

Id just kill them with a smoke bomb thing. I find the problem is velux windows ( with our house) so wipe down with a bug control spray. Spray on to a cloth. Just do the frames with the windows open. I’ve not had to smoke bomb for years but it was a big problem.

As others have said just order the bombs off Amazon and do it yourself. Spray where you think they are getting in with the fly killer spray.
thats all the pest control people will do anyway.

Thank you everyone. Really appreciate your help. Will take a look on Amazon right now so thank you for the specific link.