---
title: "Exterior Wood Filler — £247K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/exterior-wood-filler"
last_updated: "2026-07-31T09:46:25.499Z"
locale: en
meta:
description: "Niche score 56/100 · £247K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · £247K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Exterior Wood Filler — £247K/yr Amazon UK Niche (2026) - Flapen"
---
# **exterior wood filler**
**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 46Growth 54Conversion 93Competition 36Returns 98Price range 67Avg price 48Brand share 25Review moat 42Quality gap 58
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.6%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****£3.64–£37.74**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Growth**
**Good****+25.7%**
90-day search growth — must beat 0% to launch
**Avg price**
**Okay****£11.80**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****£247K**
£247K/yr · 181K searches
**Review moat**
**Okay****2,251.18**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
According to Flapen's Amazon United Kingdom niche tracking, exterior wood filler is a £247K/yr Amazon United Kingdom market (181K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 56/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **exterior wood filler market data**
- **Units sold / yr**
- **15K–20K**
- avg 500–750/product
- **Revenue / yr**
- **£177K–£236K**
- units × avg price
- **Conversion rate**
- **11.6%**
- **Avg BSR**
- **#204**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **29%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **173 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**8 **▼falling
**Sellers**
**99**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**6%**
- Ronseal54% - Roxil15% - Everbuild11% - J-B Weld5% - 3C Sealants5% - EAZYFIX4% - Open — no brand owns it (2 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +25.7% search growth over the last 90 days.
4K3KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/exterior-wood-filler/trend)
## **Top exterior wood filler search terms**
- **ronseal wood filler**44K/yr+20.9%12.4% conv. - **epoxy wood filler**28K/yr+31.5%4.3% conv. - **2 part wood filler**26K/yr+12.6%7.4% conv. - **ronseal high performance wood filler**14K/yr+61.5%15.6% conv. - **wood repair resin**10K/yr+40.6%1.8% conv. - **two part wood filler**9K/yr+29.0%7.5% conv. - **2 part epoxy resin wood filler**5K/yr+74.3%3.5% conv. - **wood epoxy filler**5K/yr+6.0%4.5% conv. - **resin wood filler**5K/yr+30.4%3.2% conv. - **epoxy wood filler for rotted wood**3K/yr+53.1%3.7% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/exterior-wood-filler/search-terms)
## **Top exterior wood 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%£25K20%£49K30%£74K40%£99K101001K10K100K 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 35304 High Performance Wood Filler - Natural 550g**Ronseal**£9.95**4.4★935 rev](https://www.amazon.co.uk/dp/B001GU2H6S) [2**Roxil Two-Part Wood Filler White - 220cm Coverage. Premium High-Strength Wood Repair Filler for Interior & Exterior Timber Fully Stainable & Sandable Superior Moulding Low Hazard Formula**Roxil**£9.18**4.4★1,313 rev](https://www.amazon.co.uk/dp/B08NTLGTLL) [3**J-B Weld 8257UK KwikWood Epoxy Putty 57 grams - Strength 900 PSI 1 Hour Cure Time Tan**J-B Weld**£4.38**4.1★334 rev](https://www.amazon.co.uk/dp/B07Q5HP34N) [4**Ronseal High Performance Wood Filler - White 550g**Ronseal**£12.87**4.6★527 rev](https://www.amazon.co.uk/dp/B001GU6IW2) [5**Everbuild 2-Part High Performance Wood Filler Fast Drying Weatherproof Easy to Mix and Apply Pine 500g**Everbuild**£9.57**4.5★1,313 rev](https://www.amazon.co.uk/dp/B00NVLNMP0)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**EAZYFIX Wood Rot Filler Premium 2-Component Epoxy for Wood Repair Durable No Shrink Paste 150 ml**EAZYFIX**£28.27**201 rev3y ago](https://www.amazon.co.uk/dp/B0B8ZKVP2X) [**Roxil Two-Part Wood Filler White - 220cm Coverage. Premium High-Strength Wood Repair Filler for Interior & Exterior Timber Fully Stainable & Sandable Superior Moulding Low Hazard Formula**Roxil**£9.18**1,313 rev5y ago](https://www.amazon.co.uk/dp/B08NTLGTLL) [**Roxil Two-Part Wood Filler Natural - 220cm Coverage. Premium High-Strength Wood Repair Filler for Interior & Exterior Timber Fully Stainable & Sandable Superior Moulding Low Hazard Formula**Roxil**£9.21**1,313 rev5y ago](https://www.amazon.co.uk/dp/B08NTMPVZH) [**J-B Weld 8257UK KwikWood Epoxy Putty 57 grams - Strength 900 PSI 1 Hour Cure Time Tan**J-B Weld**£4.38**334 rev7y ago](https://www.amazon.co.uk/dp/B07Q5HP34N) [**3C Sealants Wood Repair 2-Part Filler 620ml Long Lasting Heavy Duty Wood Filler for Durable Repairs & Restoration Projects**3C Sealants**£37.74**83 rev8y ago](https://www.amazon.co.uk/dp/B0792FBZ79)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Everbuild 2-Part High Performance Wood Filler Fast Drying Weatherproof Easy to Mix and Apply Pine 500g**Everbuild**£9.57**4.5★**▲ 128%**](https://www.amazon.co.uk/dp/B00NVLNMP0) [**Everbuild Multipurpose Wood Filler Suitable for Indoor and Outdoor Use Sandable Light Stainable 250ml**Sika**£3.64**4.5★**▲ 41%**](https://www.amazon.co.uk/dp/B0046LZI88) [**Roxil Two-Part Wood Filler White - 220cm Coverage. Premium High-Strength Wood Repair Filler for Interior & Exterior Timber Fully Stainable & Sandable Superior Moulding Low Hazard Formula**Roxil**£9.18**4.4★**▲ 31%**](https://www.amazon.co.uk/dp/B08NTLGTLL) [**Ronseal RSLMPWFL250G 100g Multi-Purpose Wood Filler Tube - White**Ronseal**£5.03**4.0★**▲ 31%**](https://www.amazon.co.uk/dp/B001GU2C18) [**Ronseal 35304 High Performance Wood Filler - Natural 550g**Ronseal**£9.95**4.4★**▲ 14%**](https://www.amazon.co.uk/dp/B001GU2H6S)
**~~View all trending →~~**
## **What buyers say about exterior wood filler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Great product and simple to use”*
**Ease Of Use**16%
*“The filler was easy to work with”*
**Adhesion/Stickiness**9%
*“Very pleased with adhesion and spread”*
**Wood Quality**9%
*“Great woodfiller, great price”*
**Value For Money**8%
*“Great value”*
**Advertised Vs Actual Product**8%
*“Does the job nicely”*
**Efficiency**4%
*“Works well, does the job,”*
**Maintenance And Repair**3%
*“It good to repair”*
**Durability**3%
*“durable”*
**Drying Time**3%
*“Solid as rock once dried in 15mins great time saver”*
### **What buyers complain about **
**Value For Money**13%
*“More expensive”*
**Ease Of Use**11%
*“then an immense struggle trying to get actual filler out of the tube”*
**Adhesion/Stickiness**11%
*“Terrible glue”*
**Hard Feel**10%
*“it had gone rock hard”*
**Quality-Overall**8%
*“Poor product”*
**Functionality-Overall**6%
*“doesnt work properly”*
**Size-Overall**3%
*“Not fit for purpose”*
**Color**3%
*“It's almost white”*
**Durability**2%
*“Does not hold”*
**Assembly/Installation**2%
*“Terrible product,20 minutes later still not set”*
### **Top return reasons **
**Color**31%
**Functionality-Overall**11%
**Size-Overall**9%
**Defective Material/Parts**8%
**Adhesion/Stickiness**5%
**Leak-Proof**5%
**Compatibility-Overall**4%
**Hard Feel**4%
**Value For Money**3%
**Maintenance And Repair**3%
## **Common questions**
- **Is exterior wood filler profitable to sell on Amazon United Kingdom?**
- The niche generates £247K/yr across 17 tracked products. 90-day search growth is +25.7%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the exterior wood filler niche?**
- 8 brands and 99 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in exterior wood filler?**
- Top complaints mined from reviews: Value For Money, Ease Of Use, Adhesion/Stickiness. The return rate is 0.4%.
- **When does demand for exterior wood filler peak?**
- Demand peaks in Apr–May; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the exterior wood filler niche?**
- Listings span £3.64–£37.74; the average listing price is £11.80 (sweet spot $15–$100). The average incumbent carries 2,251 reviews — the moat a new listing must climb.
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