---
title: "Trend — mains smoke alarm - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/mains-smoke-alarm/trend"
last_updated: "2026-07-31T14:21:27.853Z"
locale: en
meta:
  description: "Niche score 34/100 · £81K/yr market · 102K searches/yr · £21.79 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 34/100 · £81K/yr market · 102K searches/yr · £21.79 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Trend — mains smoke alarm - Flapen"
---

# **mains smoke alarm**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 20Growth 17Conversion 46Competition 4Returns 62Price range 90Avg price 92Brand share 0Review moat 69Quality gap 47

**Avg price**

**Great****£21.79**

avg listing price — sweet spot $15–$100

**Price range**

**Great****£12.74–£47.24**

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

**Review moat**

**Good****737.86**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Good****2.5%**

return rate — above 5% kills the launch gate

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Okay****3.6%**

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

**Market size**

**Bad****£81K**

£81K/yr · 102K searches

**Growth**

**Bad****-17.0%**

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

**Competition**

**Bad****95%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand