Skip to content
51

radiator valve

Worth a look

Shows a thin review moat (294 avg reviews), but soft demand (-53.1% this quarter) keeps it on the watch list.

Market size 49Growth 0Conversion 62Competition 69Returns 43Price range 66Avg price 50Brand share 83Review moat 85Quality gap 47

Review moat

Great294.28

avg incumbent reviews — the moat a new listing must climb

Brand share

Great52%

top-5 brand share — no brand owns this niche

Competition

Good44%

top-5 click share — leaders hold, buyers still browse

Price range

Good£5.85–£32.46

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

Conversion

Good5.5%

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

Avg price

Good£12.04

avg listing price — sweet spot $15–$100

Market size

Okay£265K

£265K/yr · 401K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay3.6%

return rate — above 5% kills the launch gate

Growth

Bad-53.1%

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

According to Flapen's Amazon United Kingdom niche tracking, radiator valve is a £265K/yr Amazon United Kingdom market (401K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Jan–Feb–Oct–Nov–Dec. Verdict: Worth a look — 51/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

radiator valve market data

Units sold / yr
25K–30K
avg 750–1,000/product
Revenue / yr
£301K–£361K
units × avg price
Conversion rate
5.5%
Avg BSR
#310
Page quality
0%
Prime
95%
Sponsored
79%
Out of stock
2.7%
Avg brand age
43 months
Avg seller age
175 days

Competition & brand share

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

Brands

27 falling

Sellers

53

Top-5 brand share

52%

Top 20: 95%

Top-5 click share

44%

Top 20: 84%

Open market

40%

  • VANCOCO13%
  • YEEKIDAIJ13%
  • Reeds9%
  • LJAPPLIED8%
  • Drayton8%
  • NA-18%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -53.1% search growth over the last 90 days.
20K15KSpike '24Black Friday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 4.5×

Top radiator valve search terms

  • radiator valve78K/yr
  • trv radiator valves49K/yr
  • thermostatic radiator valve55K/yr
  • radiator thermostat valve46K/yr
  • radiator valves30K/yr
  • radiator valve thermostatic25K/yr
  • radiator thermostat valve head13K/yr
  • trv21K/yr
  • radiator thermostat24K/yr
  • thermostatic radiator valve head10K/yr
All search terms

Top radiator valve 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%4%£11K8%£21K12%£32K16%£42K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about radiator valve

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall29%

“EXCELLENT QUALITY”

Size-Overall18%

“Perfect fit”

Value For Money13%

“Good value for money”

Advertised Vs Actual Product10%

“Exactly what we needed”

Ease Of Use6%

“Easy to use”

Efficiency5%

“Works perfectly”

Assembly/Installation3%

“Easy to install”

Strength2%

“Really strong”

Design-Overall2%

“Brilliant design and value for money”

Leak-Proof1%

“No leaks, threads were clean, installation was straightforward, and it paired up with the Tado heads without any issues”

What buyers complain about

Size-Overall27%

“Rubbish dont fit at all”

Quality-Overall18%

“Usless garbage”

Functionality-Overall10%

“Does not stay on the valve”

Durability6%

“don't last forever”

Leak-Proof5%

“Leaked next day”

Value For Money4%

“Not the cheapest”

Strength3%

“the plastic becomes brittle and breaks”

Measurement/Reading Accuracy3%

“Not sure that the thermostat is 100% accurate yet”

Color3%

“unfortunately had to return as colour was not exact match for radiator”

Touch/Button Controls3%

“Control would not turn on or off”

Top return reasons

Size-Overall66%
Compatibility-Overall13%
Color3%
Functionality-Overall3%
Defective Material/Parts3%
Quality-Overall2%
Connectivity-Overall2%
Advertised Vs Actual Product2%
Mechanism Issues1%
Value For Money1%

Common questions

Is radiator valve profitable to sell on Amazon United Kingdom?
The niche generates £265K/yr across 39 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -53.1%. Flapen's verdict: Worth a look (51/100).
How competitive is the radiator valve niche?
27 brands and 53 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 52% of demand.
What do buyers complain about in radiator valve?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Functionality-Overall. The return rate is 3.6%.
When does demand for radiator valve peak?
Demand peaks in Jan–Feb–Oct–Nov–Dec; the busiest month runs 4.5× the quietest.
What does it cost to enter the radiator valve niche?
Listings span £5.85–£32.46; the average listing price is £12.04 (sweet spot $15–$100). The average incumbent carries 294 reviews — the moat a new listing must climb.