---
title: "Silverfish Killer — £181K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/grocery/silverfish-killer"
last_updated: "2026-07-31T14:59:34.921Z"
locale: en
meta:
description: "Niche score 48/100 · £181K/yr market · 136K searches/yr · £9.62 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £181K/yr market · 136K searches/yr · £9.62 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Silverfish Killer — £181K/yr Amazon UK Niche (2026) - Flapen"
---
# **silverfish killer**
**Skip it**
Prices mostly outside the sweet spot ($4.18–$12.98) — this niche doesn't clear our bar today.
Market size 37Growth 22Conversion 96Competition 21Returns 98Price range 0Avg price 30Brand share 34Review moat 70Quality gap 78
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****711.83**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£181K**
£181K/yr · 136K searches
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Okay****£9.62**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-5.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Price range**
**Bad****£4.18–£12.98**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, silverfish killer is a £181K/yr Amazon United Kingdom market (136K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 48/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **silverfish killer market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **£144K–£192K**
- units × avg price
- **Conversion rate**
- **13.9%**
- **Avg BSR**
- **#148**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **57 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▼falling
**Sellers**
**19**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**10%**
- RugRemedyUK31% - Zero In23% - NOPE!13% - Super Ninja12% - Karlsten6% - REPELEM5% - Open — no brand owns it (3 brands, 10%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.1% search growth over the last 90 days.
5K3KSpike '24Prime Day '25Spike '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/grocery/silverfish-killer/trend)
## **Top silverfish killer search terms**
- **silverfish killer**57K/yr-2.2%13.6% conv. - **silverfish**20K/yr-3.7%9.5% conv. - **silverfish spray**17K/yr-7.0%11.6% conv. - **silver fish killing spray**14K/yr-4.9%18.4% conv. - **silverfish repellent**9K/yr-6.2%7.6% conv. - **silver fish**6K/yr-6.2%10.6% conv. - **silver fish treatment**4K/yr+17.1%12.6% conv. - **silverfish killer spray**4K/yr-27.6%16.2% conv. - **how to get rid of silverfish**3K/yr-48.6%9.7% conv. - **best silverfish killer**2K/yr-26.2%6.1% conv. [**All search terms **](https://flapen.com/research/uk/grocery/silverfish-killer/search-terms)
## **Top silverfish killer products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%£18K20%£36K30%£54K40%£73K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**RugRemedyUK Silverfish Killer Spray 500ml - Instant long lasting non staining odourless Silverfish treatment and killer for the home. Up to 3 months protection.**RugRemedyUK**£10.89**4.4★2,995 rev](https://www.amazon.co.uk/dp/B07BL4XX3X) [2**Zero In Silverfish & Crawling Insect Killer - 500ml Instant Long Lasting Non-Staining Odourless Silverfish and Crawling Insect Treatment and Repellent for the Home**Zero In**£4.33**4.4★211 rev](https://www.amazon.co.uk/dp/B0DGTL42L7) [3**NOPE! CP Silverfish Killer Spray - 500ml - Spray Long-Lasting Fast Acting for Indoor and Outdoor use**NOPE!**£11.68**4.5★695 rev](https://www.amazon.co.uk/dp/B09RKLKZKZ) [4**Super Ninja Silverfish Trap 10 Pack Silverfish Killer with Integrated Attractant Odourless Non-Toxic Sticky Traps for Basements Bathrooms Kitchens Works for Up to 3 Months**Super Ninja**£11.03**3.4★1,277 rev](https://www.amazon.co.uk/dp/B0BJKYJ9Z1) [5**Zero In Silverfish & Crawling Insect Killer Powder -150g Instant Long-Lasting Non-Staining Odourless Silverfish and Crawling Insect Treatment and Repellent for the Home**Zero In**£4.18**4.4★211 rev](https://www.amazon.co.uk/dp/B0DGTQZRWL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Silverfish Killer Spray 500ml Double Strength Indoor Silverfish Spray Treatment Water Based Low Odour Insect Killer Spray for Home Cracks Crevices Skirting Boards & Household Surfaces**READY STEADY DEFEND**£9.60**4 rev2mo ago](https://www.amazon.co.uk/dp/B0H2MT82Q1) [**Inoscent Silverfish Killer Spray (500ml) - Non-Toxic Pet & Family Safe. Protect Lofts Books Wallpaper & Bathrooms | Kills on Contact | Non-Staining Eco Friendly Pest Control**Inoscent**£11.88**54 rev4mo ago](https://www.amazon.co.uk/dp/B0GQ4R7XSN) [**REPELEM Silverfish Killer Spray - Rapid Action Treatment Low Toxicity Non-Staining Silverfish Spray Approved for Home Use Halts Reproduction & Prevents Reinfestation Silverfish Repellent - 1L**REPELEM**£12.98**113 rev9mo ago](https://www.amazon.co.uk/dp/B0FTMHYJMD) [**Silverfish Killer Spray 500ml - Fast Acting Silverfish Spray for Indoor and Outdoor Use Long Lasting Effective Silverfish Treatment**Pest strike**£9.19**73 rev1y ago](https://www.amazon.co.uk/dp/B0DWFV2CJZ) [**Karlsten Hyper Power Silverfish Killer Spray 600ml | 5 Metre Long-Range Nozzle for Precision Application | Fast-Acting Long-Lasting Silverfish Spray | Indoor Home Pest Control**Karlsten**£12.57**56 rev1y ago](https://www.amazon.co.uk/dp/B0DV92QJZL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Silverfish Killer Spray 500ml Double Strength Indoor Silverfish Spray Treatment Water Based Low Odour Insect Killer Spray for Home Cracks Crevices Skirting Boards & Household Surfaces**READY STEADY DEFEND**£9.60**4.7★**▲ 315%**](https://www.amazon.co.uk/dp/B0H2MT82Q1) [**Inoscent Silverfish Killer Spray (500ml) - Non-Toxic Pet & Family Safe. Protect Lofts Books Wallpaper & Bathrooms | Kills on Contact | Non-Staining Eco Friendly Pest Control**Inoscent**£11.88**4.1★**▲ 289%**](https://www.amazon.co.uk/dp/B0GQ4R7XSN) [**Zero In Silverfish & Crawling Insect Killer Powder -150g Instant Long-Lasting Non-Staining Odourless Silverfish and Crawling Insect Treatment and Repellent for the Home**Zero In**£4.18**4.4★**▲ 50%**](https://www.amazon.co.uk/dp/B0DGTQZRWL) [**REPELEM Silverfish Killer Spray - Rapid Action Treatment Low Toxicity Non-Staining Silverfish Spray Approved for Home Use Halts Reproduction & Prevents Reinfestation Silverfish Repellent - 1L**REPELEM**£12.98**4.3★**▲ 50%**](https://www.amazon.co.uk/dp/B0FTMHYJMD) [**Super Ninja Silverfish Trap 10 Pack Silverfish Killer with Integrated Attractant Odourless Non-Toxic Sticky Traps for Basements Bathrooms Kitchens Works for Up to 3 Months**Super Ninja**£11.03**3.4★**▲ 46%**](https://www.amazon.co.uk/dp/B0BJKYJ9Z1)
**~~View all trending →~~**
## **What buyers say about silverfish killer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**14%
*“The spray itself feels like a great quality product, made well and to a high standard”*
**Ease Of Use**12%
*“Its been useful as theyre often faster and dash away”*
**Smell**10%
*“The low odour claim is accurate”*
**Pest/Insect Control**9%
*“Useful silverfish traps”*
**Spray/Flow**9%
*“Easy to use just spray”*
**Value For Money**8%
*“Well worth the money”*
**Advertised Vs Actual Product**7%
*“It seems to do the job”*
**Efficiency**7%
*“Effective”*
**Strength**3%
*“Effective”*
**Durability**3%
*“Highly effective and long lasting”*
### **What buyers complain about **
**Functionality-Overall**20%
*“Did not work”*
**Value For Money**11%
*“It may seem expensive”*
**Durability**9%
*“that died instantly”*
**Pest/Insect Control**8%
*“Bye bye bugs”*
**Spray/Flow**7%
*“Sprayer missing”*
**Smell**7%
*“to me it smelled of turpentine when I opened the bottle”*
**Adhesion/Stickiness**5%
*“has no stickiness to create the shape it shows to make to form the trap”*
**Natural Resource Wastage**5%
*“Waste of time”*
**Quality-Overall**4%
*“Ineffective rubbish”*
**Advertised Vs Actual Product**3%
*“im actually annoyed that ive spent money on something that's clearly falsely advertised”*
### **Top return reasons **
**Functionality-Overall**41%
**Spray/Flow**17%
**Pest/Insect Control**15%
**Leak-Proof**5%
**Assembly/Installation**5%
**Defective Material/Parts**4%
**Adhesion/Stickiness**3%
**Advertised Vs Actual Product**3%
**Compatibility-Overall**2%
**Value For Money**2%
## **Common questions**
- **Is silverfish killer profitable to sell on Amazon United Kingdom?**
- The niche generates £181K/yr across 12 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -5.1%. Flapen's verdict: Skip it (48/100).
- **How competitive is the silverfish killer niche?**
- 9 brands and 19 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in silverfish killer?**
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Durability. The return rate is 0.3%.
- **When does demand for silverfish killer peak?**
- Demand peaks in Sep–Oct; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the silverfish killer niche?**
- Listings span £4.18–£12.98; the average listing price is £9.62 (sweet spot $15–$100). The average incumbent carries 712 reviews — the moat a new listing must climb.
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