---
title: "Products — damp proof membrane - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/damp-proof-membrane/products"
last_updated: "2026-07-31T10:01:36.282Z"
locale: en
meta:
  description: "Niche score 60/100 · £82K/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 60/100 · £82K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Products — damp proof membrane - Flapen"
---

# **damp proof membrane**

**Worth a look**

Shows low returns (0.5%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 20Growth 36Conversion 54Competition 76Returns 97Price range 75Avg price 61Brand share 82Review moat 79Quality gap 57

**Returns**

**Incredible****0.5%**

return rate — above 5% kills the launch gate

**Brand share**

**Great****53%**

top-5 brand share — no brand owns this niche

**Review moat**

**Great****414.56**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Great****39%**

top-5 click share — an open shelf

**Price range**

**Great****£4.18–£46.73**

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

**Avg price**

**Good****£13.29**

avg listing price — sweet spot $15–$100

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Good****4.5%**

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

**Growth**

**Okay****+9.1%**

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

**Market size**

**Bad****£82K**

£82K/yr · 138K searches

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")