---
title: "Pond Liner 5m X 5m — £18K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/pond-liner-5m-x-5m"
last_updated: "2026-07-31T20:47:50.890Z"
locale: en
meta:
description: "Niche score 59/100 · £18K/yr market · 15K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · £18K/yr market · 15K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Pond Liner 5m X 5m — £18K/yr Amazon UK Niche (2026) - Flapen"
---
# **pond liner 5m x 5m**
**Worth a look**
Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 4Growth 72Conversion 39Competition 74Returns 98Price range 81Avg price 95Brand share 46Review moat 64Quality gap 65
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****£37.31**
avg listing price — sweet spot $15–$100
**Price range**
**Great****£10.44–£113.19**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****41%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Good****+55.0%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****928.79**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****77%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****3.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****£18K**
£18K/yr · 15K searches
According to Flapen's Amazon United Kingdom niche tracking, pond liner 5m x 5m is a £18K/yr Amazon United Kingdom market (15K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 59/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pond liner 5m x 5m market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **£19K–£28K**
- units × avg price
- **Conversion rate**
- **3.1%**
- **Avg BSR**
- **#28**
- **Page quality**
- **0%**
- **Prime**
- **33%**
- **Sponsored**
- **90%**
- **Out of stock**
- **5.5%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **232 days**
## **Competition & brand share**
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**25**
**Top-5 brand share**
**77%**
Top 20: 100%
**Top-5 click share**
**41%**
Top 20: 74%
**Open market**
**14%**
- Swell UK28% - SolaDirect19% - PondKraft13% - AP Supplies9% - B2C8% - MYPURECORE YOU AT THE CORE8% - Open — no brand owns it (12 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +55.0% search growth over the last 90 days.
600400Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 10.0×
[**Open Trend **](https://flapen.com/research/uk/home-garden/pond-liner-5m-x-5m/trend)
## **Top pond liner 5m x 5m search terms**
- **pond liner 6m x 6m**6K/yr+75.0%3.6% conv. - **pond liner 5m x 5m**8K/yr+38.3%4.4% conv. - **pond liner 6m x 5m**1K/yr+28.5%6.5% conv. [**All search terms **](https://flapen.com/research/uk/home-garden/pond-liner-5m-x-5m/search-terms)
## **Top pond liner 5m x 5m 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%3%£5276%£1K9%£2K12%£2K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Swell UK 6m x 6m Pond Liner | 25 Year Guarantee | HDPE | UV Resistant | Garden Fish Ponds**Swell UK**£53.79**4.5★4,511 rev](https://www.amazon.co.uk/dp/B075C7XFSM) [2**PondKraft 6m x 6mPond Liner | 25 YEAR GUARANTEE | Flexible and Durable | UV Resistant | Koi and Fish Pools | Heavy Duty**PondKraft**£54.69**4.6★386 rev](https://www.amazon.co.uk/dp/B001E80Y30) [3**Pond Liner 6 x 6 m - 200 GSM Flexible Tear-Resistant UV-Resistant Garden Fish Pond Liner for Water Features Koi Ponds Fountains Landscaping - Durable Long Lasting Heavy Duty Waterproof Sheet**SolaDirect**£26.82**4.5★870 rev](https://www.amazon.co.uk/dp/B0848D3RVB) [4**Pond Liner 5 x 5 m - 200 GSM Flexible Tear-Resistant UV-Resistant Garden Fish Pond Liner for Water Features Koi Ponds Fountains Landscaping - Durable Long Lasting Heavy Duty Waterproof Sheet**SolaDirect**£24.10**4.5★870 rev](https://www.amazon.co.uk/dp/B0848JP92X) [5**Swell UK 5m x 5m Pond Liner | 25 Year Guarantee | HDPE | UV Resistant | Garden Fish Ponds**Swell UK**£37.45**4.5★4,511 rev](https://www.amazon.co.uk/dp/B075C3NSYG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**AP Supplies 5m x 5m Pond Liner 200GSM with Underlay 50GSM Heavy Duty Flexible Garden Pond Liner & Protective Eco Underlay for Koi Ponds Wildlife Ponds & Water Features UV & Tear Resistant**AP Supplies**£28.63**13 rev7mo ago](https://www.amazon.co.uk/dp/B0G5QDK8DM) [**TezhiIe Black LDPE Pond Liner 4m*5m 20 Mil Large Fish Pond Liner Heavy Duty Flexible Waterproof Sheet for Garden Ponds Fish Ponds Water Features Streams Fountains (4m*5m)**Tezhile**£50.67**22 rev1y ago](https://www.amazon.co.uk/dp/B0F7Y1VP57) [**AP Supplies 5m x 6m Black Pond Liner 200g/sqm - Heavy Duty HDPE Material - UV & Tear Resistant Flexible for Koi & Fish Pools Water Garden - Ideal for Small to Large Ponds Wildlife Underlay**AP Supplies**£25.68**109 rev1y ago](https://www.amazon.co.uk/dp/B0DBJ5PGN3) [**MYPURECORE Pond Liner & Underlay Set HDPE Material UV & Tear Resistant Waterproof - Perfect for Small to Large Water Gardens Wildlife Ponds and Decorative Features (2.5m x 2.5m)**MYPURECORE YOU AT THE CORE**£15.77**65 rev2y ago](https://www.amazon.co.uk/dp/B0D6CCHGPJ) [**PondKraft 4m x 4mPond Liner | 25 YEAR GUARANTEE | Flexible and Durable | UV Resistant | Koi and Fish Pools | Heavy Duty**PondKraft**£25.11**386 rev2y ago](https://www.amazon.co.uk/dp/B0D66YW11P)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**AP Supplies 5m x 5m Pond Liner 200GSM with Underlay 50GSM Heavy Duty Flexible Garden Pond Liner & Protective Eco Underlay for Koi Ponds Wildlife Ponds & Water Features UV & Tear Resistant**AP Supplies**£28.63**4.8★**▲ 155%**](https://www.amazon.co.uk/dp/B0G5QDK8DM) [**MYPURECORE Pond Liner & Underlay Set HDPE Material UV & Tear Resistant Waterproof - Perfect for Small to Large Water Gardens Wildlife Ponds and Decorative Features (2.5m x 2.5m)**MYPURECORE YOU AT THE CORE**£15.77**4.4★**▲ 86%**](https://www.amazon.co.uk/dp/B0D6CCHGPJ) [**B2C Extra thick pond liner Heavy Duty Durable HDPE 25 year warranty 200gsm - 035mm thick (5m x 5m (16x16))**B2C**£28.50**4.4★**▲ 86%**](https://www.amazon.co.uk/dp/B0C1GNC2V6) [**Swell UK 6m x 6m Pond Liner | 25-Year Guarantee | Heavy Duty Underlay | UV Resistant | Garden Fish Ponds**Swell UK**£73.95**3.5★**▲ 78%**](https://www.amazon.co.uk/dp/B07NDK9G4N) [**Storystore Pond Liner 3mx4m Preformed Pond Liner HDPE Black Heavy Duty Underlay Garden Membrane Pond Lining for Fish Pond Landscaping Garden Pool Water Feature Streams Fountains**Storystore**£29.98**4.2★**▲ 76%**](https://www.amazon.co.uk/dp/B0C7BMLTXP)
**~~View all trending →~~**
## **What buyers say about pond liner 5m x 5m**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**35%
*“Good quality, came with underlay”*
**Value For Money**22%
*“Worth every penny”*
**Plant Growth**6%
*“the difference it makes to the garden is wonderful”*
**Ease Of Use**5%
*“easy to use”*
**Durability**4%
*“Strong durable would buy again”*
**Strength**4%
*“Amazing product very tough”*
**Advertised Vs Actual Product**4%
*“Great item, exactly as advertised”*
**Weight Heavy**3%
*“works fine heavy duty”*
**Assembly/Installation**3%
*“it's easy to install”*
**Size-Overall**3%
*“easily fitted”*
### **What buyers complain about **
**Leak-Proof**32%
*“leaky liner”*
**Water Resistance**18%
*“Product did not hold water”*
**Quality-Overall**11%
*“This is not good quality and leaked”*
**Assembly/Installation**7%
*“Terrible split in 5 mins of being installed defo wouldnt recommend to anyone”*
**Advertised Vs Actual Product**7%
*“is not as described”*
**Thickness**4%
*“the fold will go thin”*
**Color**4%
*“black the other”*
**Material Quality**4%
*“split the material”*
**Durability**4%
*“Not as durable as I had hoped”*
### **Top return reasons **
**Size-Overall**47%
**Leak-Proof**18%
**Thickness**5%
**Quality-Overall**5%
**Material Quality**4%
**Advertised Vs Actual Product**3%
**Water Resistance**3%
**Functionality-Overall**3%
**Durability**3%
**Defective Material/Parts**2%
## **Common questions**
- **Is pond liner 5m x 5m profitable to sell on Amazon United Kingdom?**
- The niche generates £18K/yr across 48 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is +55.0%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the pond liner 5m x 5m niche?**
- 18 brands and 25 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 77% of demand.
- **What do buyers complain about in pond liner 5m x 5m?**
- Top complaints mined from reviews: Leak-Proof, Water Resistance, Quality-Overall. The return rate is 0.4%.
- **When does demand for pond liner 5m x 5m peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 10.0× the quietest.
- **What does it cost to enter the pond liner 5m x 5m niche?**
- Listings span £10.44–£113.19; the average listing price is £37.31 (sweet spot $15–$100). The average incumbent carries 929 reviews — the moat a new listing must climb.
## **Related niches in Home & Garden**
- 79 [**mole repellent**](https://flapen.com/research/uk/home-garden/mole-repellent)£163K/yr+91.4%**Worth a look**- 80 [**sun lounger**](https://flapen.com/research/uk/home-garden/sun-lounger)£2.5M/yr+299.9%**Launch it**- 80 [**fly repellent fan**](https://flapen.com/research/uk/home-garden/fly-repellent-fan)£302K/yr>1,000%**Worth a look**- 80 [**ice maker**](https://flapen.com/research/uk/home-garden/ice-maker)£2.9M/yr+371.4%**Launch it**- 80 [**parasol base**](https://flapen.com/research/uk/home-garden/parasol-base)£1.1M/yr+904.4%**Launch it**- 80 [**air conditioner**](https://flapen.com/research/uk/home-garden/air-conditioner)£39.3M/yr>1,000%**Launch it**[**All Home & Garden niches **](https://flapen.com/research/uk/home-garden)