Published: July 2026
If it feels like there are more flies around your home this summer, you’re not imagining it.
The UK has experienced an exceptionally hot and dry summer, with the Met Office confirming multiple heatwaves across the country. Temperatures have climbed into the mid-30s Celsius, with some locations reaching 35–36°C, while the UK Health Security Agency has issued repeated heat-health alerts because of the prolonged hot weather.
Unfortunately, these conditions don’t just affect people—they also create ideal breeding conditions for blowflies.
Warm temperatures speed up the breakdown of household food waste and increase fly activity. Once flies gain access to your wheelie bin, they can lay eggs on exposed rubbish, which may hatch into maggots within a day under warm conditions.
Why are there so many flies this year?
According to the Met Office, 2026 has already been one of the UK’s hottest summers on record, with an unprecedented number of days above 35°C and several official heatwaves occurring in just a few months.
These prolonged periods of heat mean:
- Food waste breaks down faster.
- Stronger odours attract more flies.
- Blowflies reproduce more rapidly.
- Maggots appear much sooner than during cooler weather.
This is why many households notice a sudden increase in flies around their outdoor bins during summer.
7 Ways to Help Prevent Flies and Maggots
1. Tie rubbish bags securely
Always seal food waste before placing it in your wheelie bin. This helps reduce odours that attract flies.
2. Dispose of meat and seafood waste carefully
Raw meat, seafood and pet food are especially attractive to blowflies. If possible, dispose of these close to your scheduled bin collection day.
3. Keep your wheelie bin in the shade
A cooler bin slows the breakdown of waste and can reduce unpleasant smells.
4. Rinse your bin regularly
Cleaning away food residue helps reduce odours and keeps your bin more hygienic throughout summer.
5. Keep the lid closed
Even small openings around the lid make it easier for flies to reach food waste.
6. Empty indoor food bins frequently
During hot weather, don’t allow kitchen food waste to build up for several days.
7. Stop flies reaching your rubbish
One of the most effective ways to reduce maggots is to prevent flies from reaching the rubbish in the first place.
Enviro Bin Cap is a reusable stretch-fit barrier that fits over the opening of most 240-litre wheelie bins while allowing the lid to close normally. It helps reduce flies, maggots and unpleasant odours without relying on chemicals or insect sprays.
Its flexible design also fits many slightly warped wheelie bin lids, making it suitable for everyday household use.
Why prevention works better than treatment
Once flies have laid eggs, you’re left dealing with maggots, unpleasant odours and cleaning out your wheelie bin.
Preventing flies from reaching the rubbish in the first place is often much easier than trying to eliminate an infestation after it starts.
The Bottom Line
As UK summers continue to become hotter, taking simple steps to reduce flies and maggots around your wheelie bin can make a noticeable difference. Preventing flies from reaching your rubbish before they lay eggs is far easier than dealing with an infestation afterwards. Whether you keep your bin clean, store it in the shade or use a reusable barrier like Enviro Bin Cap, acting early can help keep your bin fresher throughout the warmer months.