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Best spider spray UK

Updated: 23 October 2026

When a large house spider crosses the carpet in October, amazon.co.uk puts peppermint barrier triggers next to contact-kill aerosols. The best spider spray UK only makes sense once you separate a spray that deters at frames from an aerosol that kills a spider you hit. In our [spider spray comparison](/hub/pest-control/spider-spray) the editorial team scored five UK listings from shelf prices, review samples and public sheets, not a laboratory test. This page says which bottle fits a whole-house mint barrier, which single bottle suits a one-room trial, and who should skip each option. Prices are GBP on amazon.co.uk. A purchase through a link can earn a commission at no extra cost to you.

When a large house spider crosses the carpet in October, amazon.co.uk puts peppermint barrier triggers next to contact-kill aerosols.

Our top picks

On this page

How these five sprays are scored

Sorting amazon.co.uk by stars alone mixes plant-oil deterrents with knockdown aerosols. Display scores here run from 55 to 84. They weight the UK review sample, whether an oil or active is named, and whether the bullets match the title. This is not a laboratory test. The British Pest Control Association notes that spiders walk on the tips of their legs, so a dried film wears off faster than a front label implies. A six-can aerosol at 4.4 from 122 reviews can look stronger than a peppermint trigger at 3.9 from 13,064 ratings, yet the aerosol page names no active. Ignore a non-toxic title when none of the five pages prints an HSE number.

Top pick for several rooms: Zero In STV981

For several ground-floor rooms, utility doors and a conservatory, the Zero In 3 × 500 ml pack (B0DBZYCM31) is the top pick, with a display score of 84. At about £17.25 for 1.5 litres it is £11.50 a litre. The listing names a mint oil extract for doors and window frames and says it does not harm spiders. It holds 3.9 across 13,064 amazon.co.uk ratings. Amazon rolls pack sizes into that parent total, so the count is not 13,064 sales of this triple. Repeat every two to three weeks or after cleaning. The safety data sheet lists peppermint oil under 1% with an EUH208 skin-sensitiser warning. Some buyers report a leaking trigger and a strong mint scent. Skip it if you dislike mint, have sensitive skin, or only want one doorway.

Best value single bottle: Acana Spider Stopper

If you do not need three bottles, Acana Natural Spider Stopper 500 ml (B0DFMLDNPT) is the best value, with a display score of 80. At about £7.99 it names peppermint and clove oils for the home, garages and sheds, and it holds 3.9 from 485 reviews. The catch is the headline. The title says up to 12 weeks. The bullets give no week count, and a retailer directions page says every two to three weeks. A shed door sprayed once in early September will not hold until December. At about £15.98 a litre it costs more per litre than the Zero In triple. Skip it if you want the lowest price per litre, or an instant knockdown. How to read an oil declaration is in the spider spray buying guide.

Contact kill, and why the other two trail

When a spider is on the wall and a glass and card will not reach, a mint barrier is the wrong tool. Pestshield, six 200 ml unscented aerosols (B01CR88VCG), scores 76 at about £12.10 and holds 4.4 from 122 reviews. A direct hit stops small spiders within minutes. A larger spider may walk off, a can can empty in about 20 seconds, and the next spider still comes in. Skip it if you want no dead spiders, or a named active. The two jobs are in spider repellent vs spider killer spray. The Zero In twin (B074PN6H85, about £12.90, 4.1 from 517) scores 72 because the bullets describe a killer and the title is a humane mint deterrent. Invigortex WildGuard, 1 litre at about £12.95, scores 55. It names peppermint, lavender and eucalyptus with castile soap, and the saved listing has no ratings. Skip it until reviews exist.

Common questions

Which spider spray is the top pick in this set, and why is that not a lab test?
The Zero In spider repellent 3 × 500 ml pack (B0DBZYCM31, about £17.25) is the top pick, with a display score of 84 out of 100. The score uses the £11.50 per-litre price, 3.9 across 13,064 ratings, a named mint extract and a stated two-to-three-week repeat. It is not a laboratory test on live spiders. Skip it if you only need a single bottle.
Which bottle is the best value if I only want to try one 500 ml deterrent?
Acana Natural Spider Stopper 500 ml (B0DFMLDNPT) is the best value at about £7.99, scoring 80 out of 100, with 3.9 from 485 reviews. It lets you test a peppermint and clove barrier around one room or a shed without paying about £17.25 for a three-pack. You still re-apply every two to three weeks.
Why does Pestshield have the highest star rating if it is not the top barrier pick?
Pestshield, six 200 ml cans (B01CR88VCG, about £12.10), earns 4.4 from 122 reviews because buyers judge a direct hit. It ranks third at a score of 76 because the listing does not name the active and because a contact aerosol has little residual barrier once it is dry. Stars and the job are different questions.
Why should I be careful with the Zero In twin pack listing?
The Zero In 2 × 500 ml twin (B074PN6H85, about £12.90, 4.1 from 517 reviews) scores 72 because the amazon.co.uk bullets conflict with the repellent title. They open with a killer claim. If you want the mint formula with copy that matches the bottle, and a lower price per litre, buy the STV981 triple instead.
Is the 1 litre WildGuard spray worth buying with no reviews?
Invigortex WildGuard, 1 litre (B0HLGBR2VS, about £12.95), scores 55 out of 100 because the saved amazon.co.uk listing has no star rating and no review count. A litre labelled for indoor and outdoor use sounds convenient. Skip it until buyer reviews cover the nozzle and the scent.
Does the 13,064 review count on the Zero In triple mean 13,064 triple packs were sold?
No. Amazon merges ratings from single, twin and triple packs under the same parent listing into one total of 13,064. That is broad UK feedback on the STV981 formula, not triple-pack sales alone. The saved line is 3.9 stars.

Related pages

Sources

Public UK sources used for this comparison. Shelf prices, stars and review counts are the amazon.co.uk figures captured for these five listings. Last checked 22 October 2026.

  1. HSE biocidal product types (retrieved 22 October 2026)
  2. HSE biocidal advertising (retrieved 22 October 2026)
  3. Acana Spider Stopper directions (retrieved 22 October 2026)
  4. HSE packaging and labelling (retrieved 22 October 2026)
  5. BPCA spider control (retrieved 22 October 2026)
  6. BPCA false widow sightings (retrieved 22 October 2026)
  7. NHS insect bites and stings (retrieved 22 October 2026)
  8. STV981 safety data sheet (retrieved 22 October 2026)