---
title: "Bathroom Door Lock — £128K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/bathroom-door-lock"
last_updated: "2026-07-31T09:17:44.737Z"
locale: en
meta:
description: "Niche score 50/100 · £128K/yr market · 314K searches/yr. Prices mostly outside the sweet spot ($2.90–$12.91) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · £128K/yr market · 314K searches/yr. Prices mostly outside the sweet spot ($2.90–$12.91) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Bathroom Door Lock — £128K/yr Amazon UK Niche (2026) - Flapen"
---
# **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**
**Great****50%**
top-5 brand share — no brand owns this niche
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****885.18**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.4★**
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
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%")
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 ~~](https://flapen.com/research/methodology)
## **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 '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/bathroom-door-lock/trend)
## **Top bathroom door lock search terms**
- **bathroom door lock**118K/yr-11.4%3.8% conv. - **bathroom lock**63K/yr-4.2%4.2% conv. - **toilet door lock**30K/yr-6.3%3.8% conv. - **bathroom locks for doors**31K/yr-9.9%4.3% conv. - **toilet lock**15K/yr-6.8%4.0% conv. - **lock for bathroom door**12K/yr-20.4%3.7% conv. - **bathroom door latch**8K/yr-11.8%2.8% conv. - **bathroom door locks**9K/yr-11.3%2.5% conv. - **bathroom locks**6K/yr+10.7%2.4% conv. - **door lock bathroom**5K/yr+26.3%5.0% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/bathroom-door-lock/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**JelKen Door Lock Bolts 3(75mm) 304 Stainless Steel Door Latch Slide Bolts Lock with Screws for Bathroom Bedroom Shed Garden Toilet 3 Inch**JelKen**£2.90**4.4★1,799 rev](https://www.amazon.co.uk/dp/B095RR82JP) [2**QWORK Rotate Bolt Latch Lock Stainless Steel Gate Bathroom Door Lock Applicable to Various Doors Silver**QWORK**£4.90**4.6★1,724 rev](https://www.amazon.co.uk/dp/B08S7594JS) [3**YUOIP Door Lock Gate Bolt 3 Stainless Steel**YUOIP**£3.29**4.3★3,239 rev](https://www.amazon.co.uk/dp/B07BCG7Q8L) [4**2PCS Door Lock Bolt - for Bathroom Bedroom Toilet Shed Shower Door - Catch Latch Slide Bolt Easy Fit with Screws**All-Pie**£4.00**4.5★1,281 rev](https://www.amazon.co.uk/dp/B085W5NH7B) [5**HANDLEZONE Bathroom Toilet Door Thumb Turn and Release Deadbolt Kit - Dual Finish Polished/Satin Nickel - 76mm Bolt with 57mm Backset**Hunta**£11.46**4.4★266 rev](https://www.amazon.co.uk/dp/B0BQ3XQQ9B)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2 Pcs Bathroom Locks for Doors Bathroom Door Lock Gate Bolts for Wooden Gates Door Bolt Lock Slide Lock for Internal and External Doors Secure Door Bolts with Durable Construction**KxrTpx**£8.82**3 rev4mo ago](https://www.amazon.co.uk/dp/B0GSW9R5HR) [**Gyfent 1Pack Door Latch 90/180 Degree Door Closer Aluminum Alloy Gate Latch Right Angle Gate Lock Hardware for Sliding Barn Bedroom Bathroom Window**Gyfent**£4.06**24 rev6mo ago](https://www.amazon.co.uk/dp/B0GHWPWHFC) [**2 Pcs Door Lock Bolt 304 Stainless Steel Bolt Lock with Screws 92mm+14mm Gate Bolt Door Bolt for bedrooms bathrooms Kitchens Sheds etc 4 Inch**WMYMON**£3.50**18 rev9mo ago](https://www.amazon.co.uk/dp/B0FV8C187K) [**Stainless Steel Bathroom Door Lock with Rotating Bolt Mechanism for Enhanced Security on Various Door Types (Silver)**Torveen**£3.67**2 rev10mo ago](https://www.amazon.co.uk/dp/B0FP8ZF87C) [**4our Kiddies Toilet Locks Baby Proof Baby Proofing Toilet Seat Lock with Extra Pallet Fit for Most Standard Toilet Easy Intallation Toilet Lid Lock (1 PCS)**4our Kiddies**£8.25**3,955 rev1y ago](https://www.amazon.co.uk/dp/B0FDQW93N5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SecureLatch Silver Sliding Door Lock 90/180 Degree Barn Internal Door Latch for Bathroom Bedroom Toilet Small Bolt Lock with 3mm Spacer (Silver-1PC)**SecureLatch**£6.66**4.7★**▲ 303%**](https://www.amazon.co.uk/dp/B0F6328KW8) [**2 Pcs Bathroom Locks for Doors Bathroom Door Lock Gate Bolts for Wooden Gates Door Bolt Lock Slide Lock for Internal and External Doors Secure Door Bolts with Durable Construction**KxrTpx**£8.82**4.6★**▲ 251%**](https://www.amazon.co.uk/dp/B0GSW9R5HR) [**Gyfent 1Pack Door Latch 90/180 Degree Door Closer Aluminum Alloy Gate Latch Right Angle Gate Lock Hardware for Sliding Barn Bedroom Bathroom Window**Gyfent**£4.06**4.9★**▲ 217%**](https://www.amazon.co.uk/dp/B0GHWPWHFC) [**2 Pcs Door Lock Bolt 304 Stainless Steel Bolt Lock with Screws 92mm+14mm Gate Bolt Door Bolt for bedrooms bathrooms Kitchens Sheds etc 4 Inch**WMYMON**£3.50**3.9★**▲ 127%**](https://www.amazon.co.uk/dp/B0FV8C187K) [**Stainless Steel Bathroom Door Lock with Rotating Bolt Mechanism for Enhanced Security on Various Door Types (Silver)**Torveen**£3.67**5.0★**▲ 86%**](https://www.amazon.co.uk/dp/B0FP8ZF87C)
**~~View all trending →~~**
## **What buyers say about bathroom door lock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“Excellent product”*
**Locking Mechanism**15%
*“Door lock”*
**Value For Money**12%
*“Excellent value”*
**Advertised Vs Actual Product**12%
*“Just like advertised”*
**Size-Overall**9%
*“great fit”*
**Strength**8%
*“Nice and strong”*
**Assembly/Installation**6%
*“easy to assemble”*
**Ease Of Use**3%
*“Ease of use”*
**Efficiency**3%
*“does the job perfectly”*
**Design-Overall**2%
*“Great design”*
### **What buyers complain about **
**Quality-Overall**29%
*“Utter garbage”*
**Locking Mechanism**13%
*“Cheap little locks”*
**Strength**9%
*“not especially robust or premium”*
**Size-Overall**9%
*“Lovely bolt which unfortunately doesnt fit”*
**Durability**7%
*“Really disappointed had these handles on a week”*
**Adhesion/Stickiness**6%
*“Catch keeps sticking”*
**Advertised Vs Actual Product**3%
*“not the same as described”*
**Thickness**3%
*“Dreadfully thin”*
**Rusts/Corrodes**3%
*“Rust's after one summer month”*
**Ease Of Use**1%
*“The heads wore down immediately making them difficult to remove/replace”*
### **Top return reasons **
**Size-Overall**58%
**Compatibility-Overall**10%
**Locking Mechanism**6%
**Quality-Overall**4%
**Mechanism Issues**4%
**Functionality-Overall**3%
**Defective Material/Parts**3%
**Advertised Vs Actual Product**3%
**Strength**2%
**Color**2%
## **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.
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