In this guide we’ll take a look at the best fly killer sprays.
We’ve compared efficiency, odour, size and cost
to give you our top recommendations.
Every product we recommend is carefully researched, fact checked and tested where possible. If you buy from a link, we may earn a small commission. Learn more.

The UK's bestFly Killer Sprays2022 Review
What Are The UK's Best Fly Killer Sprays?
Read Our Fly Killer Spray Reviews
Rentokil Fly Killer Spray
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Rentokil Fly Killer Spray Review
Rentokil insect spray is the best fly killer spray on the market. It kills unwanted bugs in seconds and is simple to use.
This top-of-the-range fly killer spray gets rid of flies, bedbugs, ants, fleas and other crawling or flying insects in your home.
One spray of the aerosol is enough to clear a room in ten minutes and with 250 ml in the bottle it’ll last you ages.
Once sprayed, this aerosol offers long-lasting protection, killing insects that enter your home long after you’ve applied it.
Rentokil is a brand name to trust and this spray clears all insects from your home. It even works against those tiny fruit flies that are impossible to swat or electrify.
This is the best fly killer spray and if it can get those tiny fruit flies it won’t miss much else!
Zero In Total Insect Killer
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Zero In Total Insect Killer Review
Zero In Total Insect Killer is one of the best fly killer sprays around because it kills all flying and crawling bugs.
This 300 mls aerosol is perfect for killing flies, wasps, fruit flies, mosquitoes and midges.
It’s fast-acting too, killing directly sprayed insects from a metre away in a matter of seconds and quickly clearing a room within ten minutes. Just spray into the centre of a room with the doors and windows closed.
If you have a problem with insects invading your home you can use this spray around their entrances. Ants are a good example. Spray this into the cracks and crevices and ants won’t step foot inside.
Zero In Total Insect Killer has a rapid action formula containing PBO for faster elimination so you don’t have to wait for results.
Ardap Fly Killer Spray
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Ardap Fly Killer Spray Review
Ardap Fly Killer Spray is perfect for large indoor spaces that are under attack from flying and crawling insects. It’s a 750 ml bottle that’ll last ages against flies, fruit flies, mites, silverfish, wasps and ants.
Ardap’s spray can be used on surfaces for long term protection against insects. Spray at 30 cm and the surface will remain insect-free for up to six weeks.
This is perfect if you have any infestations or access crevices such as around the patio door or window frames.
This spray can be used in animal housing such as dove coats, bird cages, animal boxes and kennels, but be sure not to use it on food or bedding – only on hard surfaces.
This is one of the best fruit fly killer sprays and great value for its massive size.
Raid Rapid Action Fly & Wasp Killer Spray
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Raid Rapid Action Fly & Wasp Killer Spray Review
We all know and trust Raid and their rapid action fly and wasp killer spray doesn’t disappoint. It kills insects in seconds and prevents any more entering your home.
You can easily clear a room within 15 minutes by spraying the mist for 8-10 seconds and closing up the doors.
This is one of the few fly killer sprays that also work well outside – great news if wasps ruin your BBQ! It’ll also kill flies, mosquitoes, wasps, and moths inside and out.
The spray has a neutral scent so you won’t cough or retch for hours, but do take care not to inhale the spray.
Even better, to prevent insects getting into your house in the first place you can use this as a residual spray around doorways and windows to scare the flying menace away.
Provanto Ultimate Fruit & Vegetable Bug Killer
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Provanto Ultimate Fruit & Vegetable Bug Killer Review
Provanto Ultimate Fruit and Vegetable Bug Killer is one of the best fly killer sprays for your home-grown crops and ornamental plants.
It gets rid of aphid infestations as well as greenfly, caterpillars, beetles, blackfly, whitefly, and weevils – and prevents their return! It gives two weeks of protection against most common bugs.
This formulation has previously been reserved for professional growers so its strong stuff and should be used with caution.
Use this bug and fly killer spray on your fruit, veggies and flowers as soon as you spot an infestation. It’s best to do this either in the early morning or in the evening after the bees and pollinators have retired.
This is the best fruit fly killer spray and perfect for protecting indoor plants from infestations and mealybugs.
Use it up to 3 times a year on edible veggies and up to 5 on ornamentals.
How to Choose The Best Fly Killer Spray
Insect sprays are a cost-effective way of immediately killing flies and other unwanted insects that invade your home, but which is the best fly killer spray?
Here are a few things to look out for.
Quick Action
No-one wants insects to suffer, so a quick death is preferable.
Use a good brand so the effect is instantaneous on close application and a few minutes when clearing a room.
Kills Lots of Bugs
Choose an insecticide that kills a range of bugs including the tiny ones that are so annoying – that’s the fruit flies and mosquitos that manage to avoid swatting and electric fly killers.
Bar the Entry
The best fly killer sprays can be used around the entrances to your home to stop insects coming in. This helps avoid spraying your home in the first place.
Conclusion
If wiping fly innards or electrocuting insects isn’t for you, then the best fly killer spray is an important purchase.
There are plenty on the market, so choose one best suited to your needs. My top recommendation is the best on the market but my other suggestions work well and are the best buys for your cash.
Sources
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