---
title: "Fine Filler — £82K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/fine-filler"
last_updated: "2026-07-31T11:49:09.968Z"
locale: en
meta:
description: "Niche score 46/100 · £82K/yr market · 48K searches/yr · £9.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £82K/yr market · 48K searches/yr · £9.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Fine Filler — £82K/yr Amazon UK Niche (2026) - Flapen"
---
# **fine filler**
**Skip it**
Soft demand (-27.9% this quarter) — this niche doesn't clear our bar today.
Market size 21Growth 11Conversion 99Competition 45Returns 98Price range 62Avg price 28Brand share 25Review moat 42Quality gap 58
**Conversion**
**Incredible****18.5%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Price range**
**Good****£1.04–£37.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,309.41**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****£9.36**
avg listing price — sweet spot $15–$100
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Market size**
**Bad****£82K**
£82K/yr · 48K searches
**Growth**
**Bad****-27.9%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, fine filler is a £82K/yr Amazon United Kingdom market (48K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 46/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fine filler market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **£56K–£75K**
- units × avg price
- **Conversion rate**
- **18.5%**
- **Avg BSR**
- **#118**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **12%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▲rising
**Sellers**
**82**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 100%
**Open market**
**4%**
- Ronseal50% - POLYCELL12% - Polycell10% - Palace9% - Bartoline9% - Toupret6% - Open — no brand owns it (1 brand, 4%)
## **Demand**
Weekly Amazon search volume, last 42 weeks — -27.9% search growth over the last 90 days.
3K2KSpike '26Oct '25Nov '25Jan '26Mar '26Apr '26Jun '26
[**Open Trend **](https://flapen.com/research/uk/diy-tools/fine-filler/trend)
## **Top fine filler search terms**
- **fine surface filler**9K/yr-16.5%13.1% conv. - **fine filler**8K/yr-24.1%15.3% conv. - **fine filler for walls**8K/yr-42.5%18.2% conv. - **ronseal smooth finish filler**5K/yr-27.4%26.0% conv. - **ronseal filler**4K/yr+7.2%14.9% conv. - **polycell smoothover**8K/yr-49.7%3.3% conv. - **polyfilla smoothover**5K/yr-27.6%3.6% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/fine-filler/search-terms)
## **Top fine filler 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%£8K20%£16K30%£25K40%£33K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ronseal 6886271-HHW Smooth Finish Filler Multi-Purpose Ready Mixed 900g White**Ronseal**£5.71**4.5★9,067 rev](https://www.amazon.co.uk/dp/B007DHSG5Y) [2**Palace Fine Surface FIller Tub 600gm - Durable Multi-Purpose Filler for Repairing Shallow Gaps Cracks and Fine Nicks Sandable & Paintable**Palace**£1.04**4.6★2,196 rev](https://www.amazon.co.uk/dp/B07XGMLGRX) [3**Bartoline Ready Mixed Fine Surface Filler 600g Ultra-Smooth Finish Quick-Drying Easy Application Ideal for Interior Repairs**Bartoline**£2.72**4.2★62 rev](https://www.amazon.co.uk/dp/B00IG94I5K) [4**Ronseal Smooth Finish Flexible Filler 330G Super Flexible Interior Wall Filler For Cracks And Holes Easy To Apply Smooth Finish Paintable Long-Lasting Repair Solution**Ronseal**£3.86**4.3★1,115 rev](https://www.amazon.co.uk/dp/B007DHSH08) [5**Ronseal Smooth Finish Filler Multi-Purpose Ready Mixed 1.8kg white**Ronseal**£7.33**4.4★4,140 rev](https://www.amazon.co.uk/dp/B0046QCZE8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Gorilla Smooth Finish Wall Filler 473ml Applies Purple & Dries White | Repairs Small and Large Holes in Walls & Ceiling Smooth Finish Wont Shrink or Crack Fills any Depth| Indoor & Outdoor Use**GORILLA**£8.96**326 rev10mo ago](https://www.amazon.co.uk/dp/B0FP4WYY8C) [**Toupret Fine Surface Filler - Ultra-Smooth Interior Wall Repair for Minor Imperfections - White Easy Sanding Paintable No Shrink - Professional Finish for Plaster Ceilings & Walls - 1.5kg**Toupret**£7.33**330 rev5y ago](https://www.amazon.co.uk/dp/B0983VZLLZ) [**Toupret Fine Surface Filler - Ultra-Smooth Interior Wall Repair for Minor Imperfections - White Easy Sanding Paintable No Shrink - Professional Finish for Plaster Ceilings & Walls - 0.33kg**Toupret**£5.45**52 rev5y ago](https://www.amazon.co.uk/dp/B0983WN7Y6) [**Palace Fine Surface FIller Tub 600gm - Durable Multi-Purpose Filler for Repairing Shallow Gaps Cracks and Fine Nicks Sandable & Paintable**Palace**£1.04**2,196 rev6y ago](https://www.amazon.co.uk/dp/B07XGMLGRX) [**Bartoline Ready Mixed Fine Surface Filler 600g Ultra-Smooth Finish Quick-Drying Easy Application Ideal for Interior Repairs**Bartoline**£2.72**62 rev11y ago](https://www.amazon.co.uk/dp/B00IG94I5K)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Palace Fine Surface FIller Tub 600gm - Durable Multi-Purpose Filler for Repairing Shallow Gaps Cracks and Fine Nicks Sandable & Paintable**Palace**£1.04**4.6★**▲ 273%**](https://www.amazon.co.uk/dp/B07XGMLGRX) [**Polycell SmoothOver for Damaged and Textured Walls 5L**Polycell**£37.99**3.9★**▲ 176%**](https://www.amazon.co.uk/dp/B00AC2JM0A) [**Ronseal Smooth Finish Multi Purpose Interior Wall Filler Ready Mixed 330g**Ronseal**£2.95**4.4★**▲ 95%**](https://www.amazon.co.uk/dp/B0046QF3H4) [**Bartoline Ready Mixed Fine Surface Filler 600g Ultra-Smooth Finish Quick-Drying Easy Application Ideal for Interior Repairs**Bartoline**£2.72**4.2★**▲ 71%**](https://www.amazon.co.uk/dp/B00IG94I5K) [**Gorilla Smooth Finish Wall Filler 473ml Applies Purple & Dries White | Repairs Small and Large Holes in Walls & Ceiling Smooth Finish Wont Shrink or Crack Fills any Depth| Indoor & Outdoor Use**GORILLA**£8.96**4.6★**▲ 54%**](https://www.amazon.co.uk/dp/B0FP4WYY8C)
**~~View all trending →~~**
## **What buyers say about fine filler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**19%
*“Easy to use”*
**Quality-Overall**18%
*“Its well-made”*
**Advertised Vs Actual Product**14%
*“As advertised”*
**Value For Money**11%
*“Good Price”*
**Stitch/Finish/Polish**4%
*“Great finish”*
**Efficiency**4%
*“Surprisingly effective”*
**Color**3%
*“The colour change was really handy so i could see what bits were ready”*
**Moist/Dry**3%
*“Quick drying and durable”*
**Texture/Consistency-Overall**3%
*“Great smooth consistency”*
**Soft Feel**3%
*“very smooth”*
### **What buyers complain about **
**Ease Of Use**16%
*“Easy to use - more difficult than I expected”*
**Quality-Overall**12%
*“Poor product”*
**Hard Feel**12%
*“Arrived half full and hard”*
**Leak-Proof**10%
*“Arrived having completely leaked out into the box”*
**Color**6%
*“white is also wet in this case”*
**Value For Money**4%
*“Slightly cheaper”*
**Size-Overall**4%
*“Small pot”*
**Paint Quality**4%
*“the bumps remained clear as day when I painted over them”*
**Advertised Vs Actual Product**2%
*“Don't believe everything that's advertised”*
**Ease Of Cleaning**2%
*“Afterwards you have to clean it ALL”*
### **Top return reasons **
**Leak-Proof**52%
**Defective Material/Parts**14%
**Functionality-Overall**4%
**Size-Overall**4%
**Ease Of Use**4%
**Product Condition**3%
**Hard Feel**3%
**Maintenance And Repair**3%
**Advertised Vs Actual Product**2%
**Quality-Overall**2%
## **Common questions**
- **Is fine filler profitable to sell on Amazon United Kingdom?**
- The niche generates £82K/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -27.9%. Flapen's verdict: Skip it (46/100).
- **How competitive is the fine filler niche?**
- 7 brands and 82 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in fine filler?**
- Top complaints mined from reviews: Ease Of Use, Quality-Overall, Hard Feel. The return rate is 0.4%.
- **What does it cost to enter the fine filler niche?**
- Listings span £1.04–£37.99; the average listing price is £9.36 (sweet spot $15–$100). The average incumbent carries 2,309 reviews — the moat a new listing must climb.
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