10 Best Strong Bed Bug Killer Spray in The UK

Last updated on 16/07/2025

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CritterKill Professional Bed Bug Killer Spray | Guaranteed Results | Used by Pest Controllers for Bedbug Infestations | 5 Litre Bulk Pack + 1 Litre Bottle with Trigger Spray

Why We Love It

Fast, guaranteed critter extermination.
Versatile indoor insecticide.
Odourless, non-staining formula.

Main Highlights

CritterKill Powerful, Ready To Use Insecticide Spray For Killing Bed Bugs
5 Litre Bulk Pack + 1 Litre Bottle with Trigger Spray - Fast Acting with Guaranteed Results
Can Be Used to Treat Most Flying and Crawling Insects
Odourless, Non-Staining, Water Based Formula
For Use Indoors, Home Environment Friendly

Karlsten Bed Bug Killer – Ultra Strong Pest Control Spray – Pro Bed Bug Protection – (5 Litres) HSE 10668 Registered

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Why We Love It

Effective against stubborn pests.
Long-lasting results assured.
Safe, EPA approved product.

Main Highlights

PROFESSIONAL BED BUG KILLER UK Health & Safety registered 10668 -Karlsten Ultra Strong kills Bed Bugs .. Protect yourself and eliminate bed bug infestations with this pest control solution
DIRECT USE ON MATTRESSES BUT NOT SHEETS OR PILLOW CASES – Do not use on Human or pet bedding
IDEAL FOR RESISTANT PESTS – worried about stubborn bed bugs that won’t die? Say no more! Karlsten pro killer is proven to kill even the toughest of bugs that are resistant to most common cypermethrin sprays on the market. Unlike traditional pesticides, ours pro formula will eradicate the bugs and their eggs.
Extended Residual Kill up to 3 Months– this ultra-strong pesticide remains effective 3 months after the initial spray. Using it on your mattress means you do not have to use it for another 3 months. The long-lasting residue ensures you do not have to spray your beddings or affected area regularly.
HSE REGISTERED 10668 BRAND – we are a proudly registered and approved brand. Our bed bug killer spray is safe for use at your home or university dorm as it follows standards set by the Environmental Protection Agency.

NOPE! CP Bed Bug Killer Treatment (5 Litre) - Odourless & Non-Staining, Extended Residual Kill up to 3 Months for Mattress, Bed Frames, Carpets, Furniture

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Why We Love It

Kills bugs and eggs fast.
Working up to three months.
Non-staining and odorless formula.

Main Highlights

Kills Bed Bugs & their eggs Fast – The 0.1% w/w cypermethrin formula kills bed bugs on contact as well as their eggs, breaking the life cycle and disinfecting the area.
Long-Lasting – Provides potent residual action that continues to kill bed bugs for up to 3 months after the application.
Non-Staining / Odourless – Solvent Free, Water Based formulation will not stain fabrics when used according to label instructions.
Registered under No. 10815-GB – Professional quality bed bug treatment approved for use in household environments. Always read the label and follow instructions.
Quick & Easy Application – Can be applied directly to carpets, floors, soft furnishings, bed frames, mattresses, and other areas of activity.

REPELEM Bed Bug Killer Spray - Large 1L Bed Bug Spray, Kills Bedbugs at All Life Stages, All in One Treatment for Use on Mattresses, Soft Furnishings & Around The Home

15% OffFree Shipping

Why We Love It

Kills bed bugs fast.
Low toxicity formula.
Prevents reinfestation effectively.

Main Highlights

Kills Bed Bugs Fast: Our triple action 0.1% w/w cypermethrin based Bed Bug treatment gets to work instantly, killing Bed Bugs at all life stages including nymphs & eggs.
Low Toxicity Formula: Our Bed Bug Killer is water based & low toxicity meaning it can be used around the home to effectively target & destroy an infestation with lasting results.
Easy to Use: The Bed Bugs spray can be applied to hard surfaces, cracks and crevices and soft furnishings including carpets & mattresses for instant results. Do not use directly on pet bedding.
Prevents Reinfestation: Our Bed Bug spray for mattress contains a growth regulator which interrupts & prevents reproduction in difficult to control populations of Bed Bugs, fleas, ants and many more.
Long-Lasting Protection: Each home treatment will provide continued results for 6-12 weeks, ensuring that even the most resilient population are eradicated with ease.
Versatile Insect Killer: Unlike a Bed Bug mattress protector or Bed Bug trap, our spray for bed bugs can be applied to a variety of surfaces, ensuring total and continued protection around your home.

EcoVenger Bed Bug Killer Spray (480ml), Quickly Kills Bed Bugs, Nymphs, Eggs, Dust Mites, Lice & Resistant Bugs, 2 Weeks Extended Residual, Plant Based Non-Toxic, Safe for Children & Pets

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Why We Love It

Confirmed 100% efficacy by ESA.
Recommended for sensitive environments.
Child and pet friendly.

Main Highlights

THE MOST EFFECTIVE BED BUG KILLER — Entomological Society of America's journal publication confirmed that EcoRaider is the only natural product that kills bed bugs with 100% efficacy.
PROVEN THROUGH USDA IR4 PHP PROGRAM — field tested by research entomologists for eradicating bed bug infestations in public housing buildings and recommend for sensitive environment.
KILL ALL STAGES INCLUSIVE & EVEN RESISTANT BED BUGS — Kills adults, nymphs fast on contact with 100% efficacy, kills bed bugs that are resistant to traditional pesticides. Highest performance in eliminating bed bug eggs.
EXTENDED DRY RESIDUAL PROTECTION — University study shows EcoRaider residual provides extended protection for two weeks on bed bugs even after dried.
NON-TOXIC, SAFE AND ECO-FRIENDLY — certified USDA BioBased insecticide, dermatologically safe; child and pet friendly; safe to use directly on mattress and box springs.

Bed Bug Killer Spray 650ml | for Bed Bugs, Eggs, Nymphs and Larvae | Complete Treatment | Spray for Mattresses, Bedding & Carpets | Non-Staining & Low Odour, Quick & Easy Application

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Why We Love It

Harnesses power of nature.
Triumphs over bedbug life cycle.
Offers long-lasting protection.

Main Highlights

Harness the Power of Permethrin: Unleash the effectiveness of Ready Steady Defend Bed Bug Killer Spray, infused with nature-inspired permethrin, derived from chrysanthemum flowers. This potent permethrin spray not only targets bed bugs but is also an effective solution for dust mites, preserving your home's comfort and integrity.
Comprehensive Pest Elimination: Experience the strength of our bedbug spray killer strong formula! Ready Steady Defend goes beyond killing adult pests by eradicating bed bug eggs and larvae, breaking their life cycle and providing a lasting bedbug treatment at home. Ensure complete eradication with this powerful ally against household pests.
Long-Lasting Protection: Fortify your home with our durable bed bug spray for mattresses and other furnishings. Ready Steady Defend provides up to 12 weeks of protection, acting as a bed bug trap and barrier, preventing future infestations and maintaining your home’s status as a bug-free zone.
Easy 3-Step Application: Dominate pest control with our straightforward bed bug treatment strategy. Simply Spot, Clean, and Defend using Ready Steady Defend Bed Bug Killer Spray. This bed spray is your best bet for a swift and effective way to rid your living spaces of pests, ensuring a serene and secure environment.
Versatile Application: Our Bed Bug Killer Spray offers a versatile, easy-to-use solution for controlling and preventing bed bug infestations. The adjustable nozzle allows for precise application in tight spaces such as seams, crevices, and beneath bedding. Effective on a variety of surfaces, it ensures thorough coverage and protection against bed bugs, making it an indispensable tool in maintaining a bed bug-free bedroom.

Barrettine Knock Out!® Bed Bug Spray (500ml) - Non Toxic, Ready to Use Bed Bug Killer Spray with Patented Technology, Non-Staining Family & Pet Friendly Pest Control with No Harsh Odours

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Why We Love It

Patented technology effectively traps bugs.
Easy-to-use trigger for convenience.
Safe for humans and pets.

Main Highlights

PATENTED TECHNOLOGY - This bed bug spray for mattress is a highly effective way to take control of bedbugs in your home. Utilising patented cellulose-based technology, the bed bug spray envelops the pest in a sticky layer, preventing them from feeding and therefore breaking the life cycle.
EASY TO USE - The convenient ready to use trigger spray bottle can be kept at hand ready for when bed bugs strike. Press the trigger of the bed bugs killer spray to thoroughly coat the pest and the active ingredient will immediately form a sticky film over the exterior shell. It will dry quickly and become stickier until the pest is immobilised and ceases movement/feeding.
SUITABLE OR INDOOR USE - Suitable for indoors and use in the bedroom on soft furnishings, such as a bed mattress, bed frames and pet bedding. The bed bugs treatment does not contain any insecticide and does not leave harmful residues on surfaces, as the cellulose technology works without poisonous chemicals.
HOW IT WORKS - Once the bug killer is sprayed on the bed bug, it is unable to move or feed and will not recover from this immobilisation. Effectively acting like a "spray-on glue trap" to fix the problem at the source. It may not feel sticky to humans, but the active ingredient of the bed bug spray forms a tightly bound layer of thick material which coats every surface of the pest.
HUMAN & PET SAFE - The innovative, home safe, plant-based active ingredient in this bug spray for home ensures that no harmful residues are left behind in your home, safeguarding both your family and pets from toxic chemicals.

NOPE! CP Bed Bug Killer Spray Treatment (500ml) - Odourless & Non-Staining, Extended Residual Kill up to 3 Months for Mattress, Bed Frames, Carpets, Furniture

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Why We Love It

Kills bugs and their eggs.
Lasts for three months.
Stain-free and odorless.

Main Highlights

Kills Bed Bugs & their eggs Fast. Easy spray action – The 0.1% w/w powerful cypermethrin formula kills bed bugs and their eggs on contact, breaking the life cycle, disinfecting and treating the area.
Long-Lasting Treatment – Provides potent residual action that continues to kill bed bugs for up to 3 months after the application.
Non-Staining / Odourless – NOPE! Bed Bug Spray is a Solvent Free, Water Based formulation will not stain fabrics when used according to label instructions.
Registered under No. 10815-GB – Professional quality bed bug spray treatment approved for use in household environments. Always read the label and follow instructions.
Quick & Easy Application – Can be applied by spray directly to carpets, floors, soft furnishings, bed frames, mattresses, and other areas of activity.

6 Bed Bug Flea Killer Spray Pestshield Bed Bug Treatment Carpet Mattress 200ml

Why We Love It

Effective bed bug solution.
Ideal for multiple surfaces.
Promotes bug-free accommodations.

Main Highlights

6 x PestShield Bed Bug Killer.
200ml
Indoor Bed Bug Flea Killer Treatment Spray.
Ideal for Carpets, Skirting boards, Bed heads, and other areas where bed bug activity may have been.
An effective way to combat the presence of bed bugs and fleas in the home or other accommodation which is infested.

Karlsten Bed Bug Killer Spray, 500ml - Fast Acting Bedbug Spray, Strong Bug Killer, Kills on Contact, Bed Bug Spray for Mattress, Bug Repellent, Bed Bug Remover for Indoor and Outdoor Use

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Why We Love It

Kills bugs quickly and effectively.
Long lasting and resilient barrier.
Assurance of trusted quality.

Main Highlights

Eradicate Bed Bugs Fast: Unlike ordinary insect killers, Karlsten bed bug spray delivers a powerful one-two punch. It eliminates bed bugs instantly while leaving a long-lasting barrier to prevent future infestations. Rest easy, knowing your home is protected.
Break the Bed Bug Cycle: Don't let ineffective sprays prolong your bed bug woes. Karlsten's targeted formula with cypermethrin specifically kills bed bugs, preventing them from spreading and taking over your home. Achieve lasting results with a single application.
Lasting Defense: Experience fast-acting relief from bed bugs with Karlsten's spray. This HSE-registered formula kills bed bugs on contact and continues to eliminate them for days after application.
Trusted Quality & Safe Application: This UK-tested spray is proven safe for use within your home. While the spray tackles bed bugs on mattresses and furniture, remember to wash bedding in hot water for complete elimination. (Keep pets and children away during application.)
Our Story: Karlsten provides a complete range of rigorously tested solutions. Our targeted repellents and control methods address everything – from deterring curious cats and foxes in your garden to eliminating unwanted insects. Choose the powerful options that empower you to reclaim your haven, indoors and out.

8.8

Excellent

We scanned 405 products

We reviewed these offers relevant to the Strong Bed Bug Killer Spray within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like CritterKill, Karlsten, NOPE!, REPELEM, EcoVenger, READY STEADY DEFEND, Barrettine, Pestshield, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Strong Bed Bug Killer Spray in the market, we considered we took a deep dive into 2026 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is CritterKill Professional Bed Bug Killer Spray | Guaranteed Results | Used by Pest Controllers for Bedbug Infestations | 5 Litre Bulk Pack + 1 Litre Bottle with Trigger Spray. We love many things about this product by CritterKill. What sets it apart from the competition is Fast, guaranteed critter extermination, Versatile indoor insecticide, Odourless, non-staining formula.
The best value product for most shoppers and where user satisfaction is continuously the highest is Karlsten Bed Bug Killer – Ultra Strong Pest Control Spray – Pro Bed Bug Protection – (5 Litres) HSE 10668 Registered by Karlsten based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Strong Bed Bug Killer Spray and the best cost-to-value ratio is REPELEM Bed Bug Killer Spray - Large 1L Bed Bug Spray, Kills Bedbugs at All Life Stages, All in One Treatment for Use on Mattresses, Soft Furnishings & Around The Homeat REPELEM with a 15% discount.
Our list of the best Strong Bed Bug Killer Spray is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Strong Bed Bug Killer Spray in The UK

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We scanned 405 products

We concluded that: