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Black Radiator Valves

Fail

Shoppers spend an estimated $32K a year here, so Black Radiator Valves is a Fail.

Flapen Score
46
46 / 100
Ranks 1,352 of 2,225 DIY & Tools niches · −3 vs the category median of 49
Market size
£32K/yr22K searches / yr
90-day growth
-28.4%search demand this quarter
Competition
48%top-5 click share · 14 brands · 13 sellers

Flapen Score

Black Radiator Valves against its category

The dotted line is the DIY & Tools average. Past it, Black Radiator Valves is stronger. Inside it, weaker.

46Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Black Radiator Valves market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Black Radiator Valves 22K times last year and spent an estimated £32K. The top 5 brands take 79% of clicks. Demand peaks in Sep–Oct–Nov. Flapen scores it 46 out of 100, a Fail.

01 · Demand

An estimated 8.5% of those searches ended in a purchase.

Shoppers searched for this 22K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 8.5% of those searches ended in a purchase. Searches in the last 90 days moved -28.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £32K a year.

Searches, last 12 months
22K
Growth, 90 days vs prior 90
-28.4%
Conversion, latest week
8.5%
Market size, estimated
£32Ka year
Peak month
October2.1× the quietest month
Top search term
black radiator valves18K searches a year

02 · Price

A sale here is worth £16.77.

Listings sell for £16.77 on average, from £7.99 to £32.85. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 0 to 100 of them. At £16.77 that is £0 to £2K a year per listing.

Average price
£16.77inside the $15 to $100 sweet spot
Price range
£7.99–£32.85
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
3K–3K
Units per listing a year
0–100
Revenue per listing a year
£0–£2K
Returns
2.7%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

72% of listings pay for placement with sponsored ads. 84% ship with Prime. On an average day, 12.0% of listings are out of stock. The average listing ranks #343 within Building Supplies. It carries 151 reviews at 4.55 stars, so a new listing needs social proof before a better product.

Sponsored listings
72%
Prime listings
84%
Out of stock, average day
12.0%
Average rank
#343in Building Supplies
Average rating
4.55 starsAmazon United Kingdom average 4.36 stars
Average reviews
151per listing
Listings tracked
25

04 · Newcomers

0 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 49 months on average, so the names here are settling in.

Launched, last 12 months
4
Successful launches
0Amazon's first-year sales bar
Average brand age
49 months

Products

Top Black Radiator Valves products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 48% of clicks. Leaders hold, but buyers still shop past them.

£0£1K£3K£4K£5K1101001K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

Brands

14 falling

Sellers

13

Est. top-5 brand share

79%

Top 20: 100%

Est. top-5 click share

48%

Top 20: 98%

Open market

17%

  • VANCOCO28%
  • "N/A"19%
  • Greenedhouse13%
  • 22.5 Team Controls11%
  • Manissa8%
  • UK Radiators4%
  • Open — no brand owns it (8 brands, 17%)

Demand

Black Radiator Valves search demand

Weekly searches over the year, seasonality beneath. Pick a range.

700500Spike '24Prime Day '25Spike '25SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 2.1×

Search terms

Top Black Radiator Valves search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • black radiator valves18K/yr
  • black angled radiator valves3K/yr
  • matt black corner radiator valves1K/yr

Reviews and returns

What reviews say buyers love and hate about Black Radiator Valves

We read the reviews and the return reasons for every product selling here.

29%of positive reviews mention “Quality-Overall”
50%of negative reviews mention “Paint Quality”
2.7%of orders come back
“be aware of the tightening them as we found that the black paint chipped from the spanner”
A buyer, on “Paint Quality”50% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

17 topics

NegativePositive

FAQ

Common Black Radiator Valves questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data