The best wasp sprays, compared.
Top pick: Raid 6 × 300 ml – Highest score, 89, for indoor knockdown: 4.6 from 6,783 reviews and a clear indoor job. Best value: Sanmex 3 × 300 ml – Best score per pound at 72 points and £6.22. The target field says Ant. Updated October 2026.
A wasp spray on amazon.co.uk is either nest foam for a nest you can see, or a fly-and-wasp aerosol for insects in a room. A hot spell usually means flies and the odd wasp. The other job is a nest in a shed, loft, hedge or bank. Quality is the match between the label and the job: an amateur approval on the can, a jet that reaches from the printed distance, and a knockdown spray that is not asked to clear a colony. The Health and Safety Executive requires biocidal insecticides to be approved and used as the approval says. None of these five extracts prints an HSE number, so that check is on the can. Its target field says, so the badge is a price result. The [wasp spray buying guide](/hub/pest-control/wasp-spray/sub/wasp-spray-buying-guide) separates a visible nest from a wasp in a room. A wasp spray is one of two aerosols. Nest foam coats a visible nest from a standing distance. An indoor fly-and-wasp aerosol knocks down insects you hit, or mists a closed room that you then ventilate. Powder at a gap is a different job and is not in this product set. Citronella, trap lures, decoy nests and vapour gadgets were left out.
A wasp spray on amazon.co.uk is either nest foam for a nest you can see, or a fly-and-wasp aerosol for insects in a room. A hot spell usually means flies and the odd wasp.
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Personal buying guide
Question 1 of 2
What are you treating?
The Raid six-pack is the indoor spray with the strongest review record in this set: 4.6 from 6,783 amazon.co.uk reviews, £19.99 in the extract, model 92880, made by SC Johnson. The title and bullets describe a direct spray on flying insects or a room treatment, not a nest foam. Flies are the usual success in the reviews. Wasps and a large hornet are described as needing more spray, sometimes 20 to 30 seconds, and one buyer says household flies took minutes rather than seconds. The unit-count field says 6.0 millilitres while the title says six 300 ml cans, so the pack line still needs a look at the box. No HSE number is in the extract. One review says remove pets and cover a fish tank before spraying; the bullets do not answer pets or stains. It is the top pick here for a season of indoor flies and the odd wasp in a room, and it is not a nest killer.
Pros
Cons
Best for: A season of indoor flies and the occasional wasp in a room.
Less suitable: Treating a nest, or anyone who reads a wasp-control sales rank as a nest test.
Specifications
Common questions
Is this a nest treatment?
The title says fly killer spray for indoor use. Bullets say a direct spray or a room treatment. There is no nest-foam or reach claim.
What does the listing say about pets and stains?
The page asks both. The bullets do not answer. One review says remove pets and cover a fish tank before spraying.
How do reviews describe wasps versus flies?
Flies are the common success. Wasps and a large hornet are described as needing more spray or 20 to 30 seconds. One buyer says household flies took minutes, not seconds.
The Raid duo is an indoor aerosol at £8.70, with a title that says two 300 ml cans and bullets that allow spraying insects or treating a room. It is rated 4.5 from 347 reviews, and those reviews often describe flies dropping quickly. The same reviews mention a choking mist and a stiff button. The item-volume field says 100 millilitres and the number of items is 1, so the duo title and the technical block do not agree. No active ingredient and no HSE number appear in the extract, and there is no foam or reach claim. Use it for flies or a single wasp in a room only if the cans you unpack match the duo title. It will not coat a nest.
Pros
Cons
Best for: Flies or one wasp in a room, if the delivery matches the duo title.
Less suitable: Covering a wasp nest, or anyone who needs the pack size to match the technical block.
Specifications
Common questions
Can it be used indoors?
The bullets say it can be used indoors, sprayed on insects or used to treat a room. They also claim a neutral scent.
Does the listing answer stains or pets?
The page asks about stains and pets. Neither is answered in the bullets.
Why do the pack figures disagree?
The title says a duo of 2 × 300 ml. The item-volume field says 100 millilitres and the number of items is 1.
This three-pack is listed at £12.85 for three 300 ml fly and wasp sprays, and the title says indoors and outdoors. It holds 4.5 stars from 234 reviews. Short reviews praise fly knockdown. Others say a fly survived repeated sprays, and one loft spray used almost a full can without clearing a wasp. Brand and manufacturer are blank in the technical block, so the page does not tell you who made it. The listing asks whether it can be used on wasp nests and does not answer. The only approval line in the file is a USDA reference, not an HSE number. Treat it as an unnamed multipack only after you have read the brand on the can.
Pros
Cons
Best for: A multipack fly spray only after you can read the brand and the label on the can.
Less suitable: Anyone who needs a named nest foam or a stated UK approval number.
Specifications
Common questions
Does the listing say it treats a wasp nest?
The page asks whether it can be used on wasp nests. The file has no answer and no nest-foam claim.
Who makes it?
Brand and manufacturer are not in the technical block. The brand on the can has to be read in person.
What do reviewers report?
Short reviews praise fly knockdown. Others say a fly survived repeated sprays, and one loft spray used almost a full can without clearing a wasp.
The Sanmex three-pack is the cheapest listing in this set, at £6.22 on amazon.co.uk for a title that says three 300 ml fly and wasp aerosols. Across 4,018 reviews it sits at 4.1 stars, and the praise that shows up is for knocking down house flies at a lower price than Raid. The same reviews complain of a weaker spray, flies that stay in the air, and broken lids. The technical block lists the target species as Ant, while the title says fly and wasp, and the extract names neither an active ingredient nor an HSE number. That mismatch is why this is a price bet rather than a clearly described wasp treatment. It has no nest-foam claim, so it does not belong on a visible colony. Read the can in your hand before you treat the delivery as a fly-and-wasp aerosol.
Pros
Cons
Best for: A low-cost indoor fly spray, once the can you receive is labelled as a fly-and-wasp aerosol.
Less suitable: A visible wasp nest, or anyone who needs the listing to name an active and an amateur approval.
Specifications
Common questions
Does the listing say this kills wasps?
The title says fly and wasp killer. The target-species field says Ant. The page asks whether it kills wasps and does not answer in the bullets.
Is indoor use or pet safety stated?
The page asks about indoor use and pets. The bullets do not answer either question.
What do the reviews argue about?
Among 50 reviews, praise is for killing house flies at a lower price than Raid. Complaints are a weaker spray, flies that stay airborne, and broken lids.
Zero In Ultra Power, model ZER556, is the only nest foam in this comparison: a 600 ml trigger can at £12.94 from STV International. The title says it reaches up to 4 metres and treats 4 to 7 nests, indoors or outdoors, late in the evening, with protective clothing and an eye on the wind. Across 5,173 reviews it scores 3.6. Some buyers describe a long jet and a nest quiet by morning. Others report a dribble, about 12 to 18 inches, or about 2 metres, and cans that needed a second application. The extract names no active ingredient and no HSE number, so those figures have to come off the can. It is the nest candidate when you can see the nest and the jet in your hand actually reaches it. It is the wrong buy for a hole you cannot see, an underground nest, or a colony above head height.
Pros
Cons
Best for: A visible nest you can aim at from the distance the can in your hand actually prints.
Less suitable: A hole you cannot see, an underground nest, a nest above head height, or anyone who needs the jet to match 4 metres without checking.
Specifications
Common questions
Does the listing say to use it indoors?
Yes. The bullets say indoor and outdoor nest removal, late in the evening, with protective clothing, and they say to consider wind direction outdoors.
Does it name hornets and pets?
Hornets are in the title. The page asks about pets and the bullets do not answer.
Do reviews support the 4 metre claim?
Some reviews describe a long jet and a nest quiet by morning. Others report a dribble, about 12 to 18 inches, or about 2 metres, and cans that needed a second application.
Scores use the amazon.co.uk extracts already in this category. This is not a laboratory test, and it is not an HSE approval. Star rating is amazon stars divided by 5, times 50, so 4.6 becomes 46. Review confidence is 15 times log10 of the review count, divided by log10 of 6,783, then rounded. The Raid six-pack is the cap. Listing fit scores a clear job, a named brand and a pack that agrees with itself. A target field that says Ant, a missing brand, a volume conflict, or no HSE number in the extract scores lower. Missing HSE numbers are a gap, not a finding that the can is unapproved. Sentiment is what logged reviews praise and what they repeat as a fault. A sales rank is not a nest test.
Star rating
50%Amazon stars divided by 5, times 50. A 4.6 star line becomes 46 points. The star line is not the same figure as the editorial score.
Review confidence
15%15 times log10 of the review count, divided by log10 of 6,783, then rounded. The Raid six-pack, with 6,783 reviews, is the cap.
Listing fit for the stated job
20%A clear job, a named brand and a pack that agrees with itself score higher. A target field that says Ant, a missing brand, a volume conflict, or no HSE number in the extract scores lower.
Review sentiment
15%What logged reviews praise, and what they repeat as a fault. A short jet, a choking mist, or flies that stay airborne reduces the points.
Name the job before you compare prices. A visible nest and a wasp in the room are two products, not one. Foam and an indoor aerosol are not substitutes. Then read the can for an amateur approval, and only then look at pack size, the listed reach and the GBP price. “Up to 4 metres” and “4 to 7 nests” are listing claims, not a result from these reviews.
A wasp spray in this comparison is one of two aerosols. Nest foam coats a visible nest from a standing distance. An indoor fly-and-wasp aerosol knocks down insects you hit, or mists a closed room that you then ventilate. Powder at a gap is a different job and is not in this product set. Citronella, trap lures, decoy nests and vapour gadgets were left out.
The Raid and Sanmex aerosols have no nest-foam claim. One loft review on the unbranded three-pack used almost a full can without clearing a wasp. A knockdown can is for insects you hit, or a closed room you then ventilate.
The Zero In title says up to 4 metres and 4 to 7 nests. Reviews also describe a dribble, about 12 to 18 inches, or about 2 metres, and a second can. Stepping closer when the foam falls short is how people get stung.
Do not spray bees. Old wasp nests are not reused, so an empty autumn comb is not a job for another can. A yellow-legged hornet is a photo report, not a shop aerosol. Midday treatment is the wrong window for a visible nest.
The first decision is the job. A visible nest, a single flying insect, a hole you cannot see, and bees you must not treat are different buys. This set has only two forms: foam onto a nest, and a space or direct spray in a room. Powder at an entrance is not here. Zero In Ultra Power, 600 ml, is the only nest foam. The title says up to 4 metres and 4 to 7 nests, late in the evening.
Approval is on the can, not in these extracts. None of the five listings prints an HSE number. Missing numbers are a gap, not a finding that the can is unapproved. COPR says do not use a non-approved biocidal product, do not decant it, and follow the label’s user type and method. Amateur versus professional is the legal user category. Read the physical label before you treat the delivery as the title. Pack lines do not always agree.
Three typical situations, each with a recommendation from this comparison.
You want insects in a room knocked down, then the room ventilated. The Raid six-pack, model 92880, is the top pick: £19.99, 4.6 from 6,783 reviews, with bullets for a direct spray or a room treatment. It is not a nest foam.
The Sanmex three-pack is £6.22, with 4.1 from 4,018 reviews. Logged reviews often praise it as a cheaper house-fly spray than Raid. The target field says Ant, and there is no nest claim. Read the can before you treat it as a fly-and-wasp aerosol.
You can see the nest, stand off, and you are not allergic. Zero In Ultra Power 600 ml is the only nest foam here, at £12.94, with 3.6 from 5,173 reviews. The title says up to 4 metres. Many reviews describe a shorter jet.
The top pick is the Raid indoor six-pack, and only for indoor knockdown. It is the highest score, 89, from 4.6 stars across 6,783 reviews, a named model and a job the bullets actually describe. The best value is Sanmex at £6.22, 72 points, the best score per pound. The Ant target field is already inside those listing points, so the badge is not a claim that the page clearly describes a wasp product. Zero In is the only nest foam, and its 4 metre line is disputed in the reviews. None of these scores is an HSE approval, and none of them says an indoor spray clears a colony.
Raid 6 × 300 ml
Highest score, 89, for indoor knockdown: 4.6 from 6,783 reviews and a clear indoor job.
Sanmex 3 × 300 ml
Best score per pound at 72 points and £6.22. The target field says Ant.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources and the amazon.co.uk listings in this set, last checked on 16 October 2026.
This page contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Prices and review counts are from amazon.co.uk listings. We did not lab-test these products.
