Pest Expert Cluster Fly Killer Spray 2 x 1Ltr - Formula 'C+' Advanced Cluster Fly Spray (UK Government HSE approved and tested – professional strength for amateur use)

We moved into an old house, three years ago, in a rural setting, that turned out to be infested (and I mean properly badly infested - hundreds of the little blighters every day) with cluster flies in the loft. They come into the eaves through the (old and gappy) roof tiles, then come into the loft room from the eaves, they also find their way into the inside of the frames of the velux windows. I sprayed this onto the glass of the velux windows, and also opened the velux windows and sprayed all round the inside of the frames. It doesn't deter the flies from coming in, but it certainly kills them (very quickly) once they have landed on an area that has been sprayed. I got a second hand vacuum cleaner specifically to keep in the loft to hoover them all up. I re-apply the spray every couple of months, which seems to keep the killing power going. This year, we have noticed that there have been far fewer flies than the previous years, so I think we are gradually winning. (Cluster flies leave scent markings where they get in to let other cluster flies know it's a good place, so, as long as we can keep decreasing the numbers, I'm hopeful that the end of the infestation will eventually come!!) There are also carpet moths in the loft room (it's a boarded, carpeted room, but not to the standard of a room you could properly use, it's really just a storage area with carpet) and this spray seems to work on them too - I've sprayed loads on the carpet at the doorway in the hope that the carpet moths won't spread to the carpets in the rooms that we do use - the joys of living in an old house......!! One note, it's strong stuff, so I always wear gloves and a mask when I use it, I still sometimes can smell it - even with an FFP3 mask on, which I don't like as I reckon that if I can smell it, that means it's going into my lungs - so please use carefully!

I have been fighting flies in my house for the past 10 days due to humidity in the subfloor of my kitchen and using Raid was not enough - it would kill them sure but they kept laying eggs so the next day I would have >20 more flies. This product after I sprayed it on the areas where the flies would hang they all immediately died within 1 hour. Around ~40 flies where dead near my window. I 100% recommend this product it was the best solution. It also left no smell in the applied area. I can also confirm that the affected area stays "affected" even in the following day as I have not sprayed again but any flies that approach it die.

It worked fine

Fantastic product. Fast delivery. Good price for 2 bottles. Easy to use and works straight away 👌

We have bought this product several times as it works very well alongside the bombs on cluster flies and clothes moths. My husband managed to rid his workshop of a cluster fly infestation and then we used it around our home for the same reason and we haven’t had a problem since. We reuse it every year just to make sure they don’t come back.

Really good

Lots of attic flies around the house and looked for something to combat them. Reviewed a few things, with this one looking the best, and have to say, so far, so good. I thought it was a little expensive but not now, great value and it works, so one happy bunny here 👍

Having tried every possible other product to get rid of cluster flies I tried this. Success was limited but there was success. I was a little disappointed until I realised what I was trying to defeat were not cluster flies - but some other super-human undefeatable beast. Word of warning on this one - it stains absorbant surfaces - so really read the instruction before you go crazy.