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50

bathroom door lock

Worth a look

Shows no brand lock-in (top 5 brands take 50% of clicks), but prices mostly outside the sweet spot ($2.90–$12.91) keeps it on the watch list.

Market size 29Growth 21Conversion 65Competition 60Returns 83Price range 0Avg price 19Brand share 85Review moat 65Quality gap 57

Brand share

Great50%

top-5 brand share — no brand owns this niche

Returns

Great1.6%

return rate — above 5% kills the launch gate

Conversion

Good5.8%

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

Review moat

Good885.18

avg incumbent reviews — the moat a new listing must climb

Competition

Good49%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Okay£128K

£128K/yr · 314K searches

Growth

Bad-7.9%

90-day search growth — must beat 0% to launch

Avg price

Bad£7.02

avg listing price — sweet spot $15–$100

Price range

Bad£2.90–£12.91

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon United Kingdom niche tracking, bathroom door lock is a £128K/yr Amazon United Kingdom market (314K searches/yr). The top 5 brands hold 50% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

bathroom door lock market data

Units sold / yr
15K–20K
avg 250–500/product
Revenue / yr
£105K–£140K
units × avg price
Conversion rate
5.8%
Avg BSR
#156
Page quality
0%
Prime
93%
Sponsored
79%
Out of stock
0.6%
Avg brand age
30 months
Avg seller age
170 days

Competition & brand share

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

Brands

26 falling

Sellers

38

Top-5 brand share

50%

Top 20: 92%

Top-5 click share

49%

Top 20: 92%

Open market

44%

  • JelKen16%
  • QWORK14%
  • YUOIP7%
  • XFORT7%
  • All-Pie6%
  • Hunta6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.9% search growth over the last 90 days.
6K4KSpike '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Top bathroom door lock search terms

  • bathroom door lock118K/yr
  • bathroom lock63K/yr
  • toilet door lock30K/yr
  • bathroom locks for doors31K/yr
  • toilet lock15K/yr
  • lock for bathroom door12K/yr
  • bathroom door latch8K/yr
  • bathroom door locks9K/yr
  • bathroom locks6K/yr
  • door lock bathroom5K/yr
All search terms

Top bathroom door lock 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%4%£5K8%£10K12%£15K16%£20K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about bathroom door lock

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

What buyers love

Quality-Overall24%

“Excellent product”

Locking Mechanism15%

“Door lock”

Value For Money12%

“Excellent value”

Advertised Vs Actual Product12%

“Just like advertised”

Size-Overall9%

“great fit”

Strength8%

“Nice and strong”

Assembly/Installation6%

“easy to assemble”

Ease Of Use3%

“Ease of use”

Efficiency3%

“does the job perfectly”

Design-Overall2%

“Great design”

What buyers complain about

Quality-Overall29%

“Utter garbage”

Locking Mechanism13%

“Cheap little locks”

Strength9%

“not especially robust or premium”

Size-Overall9%

“Lovely bolt which unfortunately doesnt fit”

Durability7%

“Really disappointed had these handles on a week”

Adhesion/Stickiness6%

“Catch keeps sticking”

Advertised Vs Actual Product3%

“not the same as described”

Thickness3%

“Dreadfully thin”

Rusts/Corrodes3%

“Rust's after one summer month”

Ease Of Use1%

“The heads wore down immediately making them difficult to remove/replace”

Top return reasons

Size-Overall58%
Compatibility-Overall10%
Locking Mechanism6%
Quality-Overall4%
Mechanism Issues4%
Functionality-Overall3%
Defective Material/Parts3%
Advertised Vs Actual Product3%
Strength2%
Color2%

Common questions

Is bathroom door lock profitable to sell on Amazon United Kingdom?
The niche generates £128K/yr across 28 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -7.9%. Flapen's verdict: Worth a look (50/100).
How competitive is the bathroom door lock niche?
26 brands and 38 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 50% of demand.
What do buyers complain about in bathroom door lock?
Top complaints mined from reviews: Quality-Overall, Locking Mechanism, Strength. The return rate is 1.6%.
When does demand for bathroom door lock peak?
Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the bathroom door lock niche?
Listings span £2.90–£12.91; the average listing price is £7.02 (sweet spot $15–$100). The average incumbent carries 885 reviews — the moat a new listing must climb.