Best Spider Repellent UK 2026: Sprays, Traps & Natural Options

Every autumn, UK homes experience a familiar invasion: large house spiders scuttling across floors, lurking in bath tubs, and building webs in every corner. While spiders are harmless and genuinely beneficial — eating flies, mosquitoes, and other household pests — many people find them deeply unsettling. Arachnophobia is one of the most common phobias in the UK, and even those who are not afraid of spiders may not want them sharing their living room. The good news is that a range of effective spider repellents, sprays, and deterrents can significantly reduce the number of spiders entering your home.

Spider repellents fall into several categories: chemical barrier sprays that kill or deter spiders on contact and leave a residual coating, natural peppermint-based sprays that spiders find unpleasant, humane catcher tools for removing spiders without killing them, and traditional remedies like conkers. The right choice depends on how serious your spider problem is, whether you want to kill or simply deter spiders, and whether you have children or pets in the household.

To compile this guide, we evaluated the leading spider repellent products on Amazon UK based on effectiveness, duration of protection, safety around children and pets, and genuine customer reviews. Every product listed is available on Amazon UK.

Best Spider Repellents at a Glance

1. Zero In Spider Repellent Peppermint Oil Spray 500ml — Best Overall

Zero In is the UK's best-selling spider repellent for good reason. Its natural peppermint oil formula is non-toxic and completely safe around children and pets, making it suitable for use in every room of the house. With over 12,000 reviews on Amazon, it has a proven track record as the go-to spider deterrent for UK households.

Application is simple: spray generously around windowsills, doorframes, skirting boards and loft hatches — anywhere spiders are likely to enter or build webs. The peppermint scent is pleasant for humans but spiders find it deeply unpleasant, encouraging them to stay away from treated areas. Each application lasts up to 3 weeks, so a regular reapplication schedule throughout the autumn spider season keeps your home spider-free.

For whole-home treatment, combine the spray with physical exclusion measures like draught excluders on external doors and mesh covers on air bricks. The spray deters spiders from treated surfaces, while sealing entry points stops them getting inside in the first place.

Pros:

• UK's best-selling spider repellent with 12,000+ reviews
• Natural, non-toxic peppermint oil formula
• Safe around children and pets
• Pleasant scent that freshens the room

Cons:

• Needs reapplication every 3 weeks
• Does not kill spiders — deterrent only
• Limited scientific evidence for peppermint effectiveness

2. Zero In Spider Repellent 500ml Twin Pack — Best Value

If you know you need to treat your entire home — and most people dealing with autumn spiders do — the Zero In twin pack offers the market-leading peppermint spider repellent at a better price per bottle than buying individually. Two full 500ml bottles give you enough product to treat every room thoroughly, including windowsills, doorframes, skirting boards and loft hatches throughout the house.

The twin pack is particularly well-timed for the autumn spider season when spiders are most active. September and October are peak months for large house spiders entering UK homes during mating season, and having two bottles on hand means you can do a comprehensive initial treatment and still have plenty left for the reapplication that will be needed 3 weeks later. It is the same trusted Zero In formula — just better value.

For households that go through spider repellent quickly, or for anyone who wants to be fully stocked for the autumn, the twin pack is the sensible choice. The natural peppermint formula remains non-toxic and safe around children and pets.

Pros:

• Better value than buying two bottles separately
• Enough for whole-home treatment plus reapplication
• Same trusted Zero In peppermint formula
• Ideal for stocking up before autumn spider season

Cons:

• Same formula as the single bottle — no additional strength
• Still needs reapplication every 3 weeks
• Deterrent only — does not kill spiders

3. Acana Natural Spider Stopper 500ml — Best Long-Lasting

The Acana Natural Spider Stopper stands out from other natural repellents with its significantly longer-lasting protection. While most peppermint sprays need reapplying every 3-4 weeks, Acana's British formula combines peppermint and clove oils to create a barrier that lasts up to 12 weeks — roughly three times longer than the competition. That means a single application in early September can last through the entire autumn spider season.

The formula is non-staining, so it can be used safely on windowsills, door frames, skirting boards and other surfaces without leaving marks. It works by creating a scent barrier that spiders find unpleasant, so there are no dead spiders to deal with — they simply avoid treated areas entirely. This makes it an ideal choice for anyone who wants to deter spiders humanely rather than kill them.

Sold directly by Acana, a British brand that specialises in natural pest deterrents, the Spider Stopper represents a well-formulated alternative for those who want long-lasting natural protection without resorting to chemical sprays. For anyone tired of reapplying peppermint spray every few weeks, this is the natural option to try.

Pros:

• Up to 12 weeks protection — far longer than most natural sprays
• Dual peppermint and clove oil formula
• Non-staining on all surfaces
• Humane — deters without killing

Cons:

• Higher price per bottle than basic peppermint sprays
• Clove scent may not appeal to everyone
• Limited scientific evidence for essential oil effectiveness

4. Pestbye Spider Repellent Spray — Best Barrier Spray

Pestbye is a UK-based specialist pest control brand with over 10 years of experience, and their spider repellent spray is designed specifically to stop spiders building cobwebs on treated areas. The natural barrier formula works for up to 4 weeks per application, making it a practical choice for ongoing spider prevention in areas where cobwebs are a persistent problem — corners, ceilings, window frames, and behind furniture.

The spray is suitable for indoor use in all rooms, including bedrooms, living rooms, kitchens and bathrooms. Unlike some chemical sprays that are best limited to exterior use, the Pestbye formula is gentle enough for regular use inside the home. Apply it to areas where you regularly find cobwebs or where spiders tend to congregate, and the barrier discourages them from setting up residence.

For those who find cobwebs as annoying as the spiders themselves, this product tackles both problems at once. By preventing spiders from building webs on treated surfaces, it reduces both the visible signs of spider activity and the spider population in those areas. Reapply every 4 weeks for continuous protection through the autumn months.

Pros:

• Specifically prevents cobweb building on treated surfaces
• UK-developed by a specialist pest control brand
• Suitable for indoor use in all rooms
• 4-week protection per application

Cons:

• Needs reapplication monthly
• Deterrent only — does not kill spiders
• Less well-known brand than Zero In

5. NOPE! Spider Killer Spray 500ml — Best Kill & Repel

For anyone who wants a product that both kills spiders on contact and prevents them from returning, the NOPE! Spider Killer Spray delivers on both fronts. It works as a contact killer — spray it directly on a spider and it dies quickly — but also leaves an odourless, non-staining residue on treated surfaces that deters spiders from re-entering the area for up to 3 months.

The dual-action formula makes it the most versatile product on our list. Use it reactively when you spot a spider, and proactively by spraying along entry points, windowsills, doorframes and skirting boards to create a lasting barrier. The 3-month residual protection means far fewer reapplications compared to natural peppermint sprays, and the odourless, non-staining formula means it can be used throughout the home without leaving marks or unpleasant smells.

NOPE! is suitable for both indoor and outdoor use, making it effective for treating exterior entry points as well as interior problem areas. For those who want the reassurance of a product that kills spiders rather than simply deterring them, combined with long-lasting residual protection, this is the strongest option on our list.

Pros:

• Kills on contact plus 3-month residual protection
• Odourless and non-staining
• Suitable for indoor and outdoor use
• Fewer reapplications needed than natural sprays

Cons:

• Chemical formula — less suitable for those wanting fully natural options
• Kills spiders rather than deterring humanely
• Higher price point than basic peppermint sprays

How to Choose Spider Repellent

Common UK House Spiders

The spider you are most likely to encounter in your home is the giant house spider (Eratigena atrica) — a large, fast-moving spider with a leg span of up to 75mm. It is completely harmless but its size and speed make it startling. The daddy long-legs spider (Pholcus phalangioides) is another common resident, often found in the corners of rooms and cellars, recognised by its extremely long, thin legs and small body. The false widow spider (Steatoda nobilis) has received considerable media attention, but bites are extremely rare and typically no worse than a bee sting. None of the spiders commonly found in UK homes are dangerous to health.

Chemical Sprays vs Natural Deterrents

Chemical sprays like Pest Expert Formula C and Miss Muffet's Revenge contain active ingredients that kill spiders on contact and leave a residual barrier. They are the most effective option for serious spider problems and offer the longest-lasting protection. However, they require caution around children and pets, and some people prefer to avoid chemical products in their home. Natural deterrents like peppermint sprays and conkers are safer and gentler, but their effectiveness is less well-established. For most households, a combination approach works best: chemical spray around the exterior perimeter and entry points, natural deterrents inside.

Does Peppermint Oil Actually Work?

The honest answer is: possibly, but the evidence is limited. A 2018 study published in the Journal of Economic Entomology found that certain essential oils, including peppermint, showed some repellent activity against spiders in laboratory conditions. However, real-world effectiveness in a draughty UK home is likely to be lower than in a controlled lab setting. Peppermint oil is certainly better than nothing — it smells pleasant, is completely safe, and may provide some deterrent effect. But it should be part of a broader strategy, not your only line of defence.

Sealing Entry Points

The single most effective way to reduce spiders in your home is to prevent them from getting inside in the first place. Fit draught excluders on external doors, use gap filler or caulk around pipe entries and cracks in brickwork, and place fine mesh covers over air bricks (without blocking ventilation). Check window seals and replace any damaged or missing weatherstripping. Spiders can squeeze through surprisingly small gaps, so be thorough. Pay particular attention to ground-floor windows, garage doors, and any openings where utilities enter the building.

Seasonal Spider Prevention

September is the peak month for spiders in UK homes. This is mating season for the giant house spider — males abandon their webs and wander in search of females, often ending up indoors in the process. To prepare for the autumn influx, apply spider repellent sprays around your home's exterior in late August, seal any gaps you have identified during the summer, and reduce clutter in garages, sheds, and spare rooms where spiders like to hide. By the time October arrives, the mating season subsides and spider sightings drop significantly.

When Spiders Are Actually Beneficial

Before declaring war on every spider in your home, consider the benefits they provide. A single house spider can consume dozens of flies, mosquitoes, moths, and other pest insects per year. In ecological terms, spiders are one of the most effective natural pest controllers available. If your spider problem is modest — the occasional spider in the bath or one web in a corner — you may find that tolerating a few spiders actually reduces other pest problems. For those who simply cannot share their home with spiders, humane removal with a spider catcher is the most environmentally responsible approach.

Frequently Asked Questions

Are any UK spiders dangerous?

No. The false widow spider can deliver a bite similar to a bee sting, but bites are extremely rare and almost never require medical treatment. There are no medically significant spider species in the UK. If you experience unusual swelling or an allergic reaction after any bite, seek medical advice as a precaution.

Why do I get so many spiders in September?

September is mating season for the giant house spider. Males leave their webs and wander indoors looking for females, which is why you suddenly see large spiders running across floors. The influx usually subsides by late October once mating is complete.

Does peppermint oil really repel spiders?

There is some anecdotal evidence and limited laboratory research suggesting spiders avoid surfaces treated with strong peppermint oil. However, real-world results are inconsistent. It is worth trying as part of a broader prevention approach — it smells pleasant, is non-toxic, and may help — but do not rely on it as your sole spider deterrent.

How do I stop spiders coming through my air bricks?

Fit fine mesh covers (2mm or smaller gaps) over air bricks to keep spiders and other crawling insects out. Crucially, do not block the air brick entirely — they provide essential ventilation to prevent damp. Stainless steel or plastic mesh covers are inexpensive and widely available at DIY stores.

Should I kill spiders or remove them?

Remove them humanely if possible. Spiders are beneficial predators that eat flies, mosquitoes, moths, and other household pests. Use a spider catcher tool or the glass-and-card method to trap and release them outside. Repellent sprays and sealing entry points are better long-term solutions than killing individual spiders.

Do spider repellent plug-ins work?

There is very limited scientific evidence that ultrasonic plug-in devices repel spiders. Independent testing has consistently failed to demonstrate reliable effectiveness. If you want to try one, treat it as a supplementary measure alongside proven methods like sealing entry points and using repellent sprays — but do not rely on it as your only defence.