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.

silverfish killer

Skip it

Prices mostly outside the sweet spot ($4.18–$12.98) — this niche doesn't clear our bar today.

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Incredible13.9%

search→purchase rate — share of searches ending in a sale

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good711.83

avg incumbent reviews — the moat a new listing must climb

Market size

Okay£181K

£181K/yr · 136K searches

Brand share

Okay85%

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

Bad75%

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

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

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.

Peak months: Sep, Oct · busiest ÷ quietest = 1.8×

Open Trend

Top silverfish killer search terms

silverfish killer57K/yr -2.2%13.6% conv.
silverfish20K/yr -3.7%9.5% conv.
silverfish spray17K/yr -7.0%11.6% conv.
silver fish killing spray14K/yr -4.9%18.4% conv.
silverfish repellent9K/yr -6.2%7.6% conv.
silver fish6K/yr -6.2%10.6% conv.
silver fish treatment4K/yr +17.1%12.6% conv.
silverfish killer spray4K/yr -27.6%16.2% conv.
how to get rid of silverfish3K/yr -48.6%9.7% conv.
best silverfish killer2K/yr -26.2%6.1% conv.

All 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.

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

RugRemedyUK Silverfish Killer Spray 500ml - Instant long lasting non staining odourless Silverfish treatment and killer for the home. Up to 3 months protection.

RugRemedyUK£10.894.4★2,995 rev

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£4.334.4★211 rev

NOPE! CP Silverfish Killer Spray - 500ml - Spray Long-Lasting Fast Acting for Indoor and Outdoor use

NOPE!£11.684.5★695 rev

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£11.033.4★1,277 rev

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£4.184.4★211 rev

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£9.604 rev

2mo ago

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£11.8854 rev

4mo ago

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£12.98113 rev

9mo ago

Silverfish Killer Spray 500ml - Fast Acting Silverfish Spray for Indoor and Outdoor Use Long Lasting Effective Silverfish Treatment

Pest strike£9.1973 rev

1y ago

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£12.5756 rev

1y ago

What buyers say about silverfish killer

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall14%

“The spray itself feels like a great quality product, made well and to a high standard”

Ease Of Use12%

“Its been useful as theyre often faster and dash away”

Smell10%

“The low odour claim is accurate”

Pest/Insect Control9%

“Useful silverfish traps”

Spray/Flow9%

“Easy to use just spray”

Value For Money8%

“Well worth the money”

Advertised Vs Actual Product7%

“It seems to do the job”

Efficiency7%

“Effective”

Strength3%

“Effective”

Durability3%

“Highly effective and long lasting”

What buyers complain about

Functionality-Overall20%

“Did not work”

Value For Money11%

“It may seem expensive”

Durability9%

“that died instantly”

Pest/Insect Control8%

“Bye bye bugs”

Spray/Flow7%

“Sprayer missing”

Smell7%

“to me it smelled of turpentine when I opened the bottle”

Adhesion/Stickiness5%

“has no stickiness to create the shape it shows to make to form the trap”

Natural Resource Wastage5%

“Waste of time”

Quality-Overall4%

“Ineffective rubbish”

Advertised Vs Actual Product3%

“im actually annoyed that ive spent money on something that's clearly falsely advertised”

Top return reasons

Functionality-Overall41%

Spray/Flow17%

Pest/Insect Control15%

Leak-Proof5%

Assembly/Installation5%

Defective Material/Parts4%

Adhesion/Stickiness3%