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Thompsons Water Seal

Fail

The top 5 brands take 100% of clicks, so Thompsons Water Seal is a Fail.

Flapen Score
42
42 / 100
Ranks 1,704 of 2,225 DIY & Tools niches · −7 vs the category median of 49
Market size
£59K/yr20K searches / yr
90-day growth
+5.3%search demand this quarter
Competition
97%top-5 click share · 3 brands · 40 sellers

Flapen Score

Thompsons Water Seal against its category

The dotted line is the DIY & Tools average. Past it, Thompsons Water Seal is stronger. Inside it, weaker.

42Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Thompsons Water Seal market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Thompsons Water Seal 20K times last year and spent an estimated £59K. All 3 brands take every click. Demand peaks in Aug–Sep. Flapen scores it 42 out of 100, a Fail.

01 · Demand

An estimated 15.7% of those searches ended in a purchase.

Shoppers searched for this 20K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 15.7% of those searches ended in a purchase. Searches in the last 90 days moved +5.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £59K a year.

Searches, last 12 months
20K
Growth, 90 days vs prior 90
+5.3%
Conversion, latest week
15.7%
Market size, estimated
£59Ka year
Peak month
August2.7× the quietest month
Top search term
thompsons water seal17K searches a year

02 · Price

A sale here is worth £18.48.

Listings sell for £18.48 on average, from £10.76 to £34.29. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 250 to 500 of them. At £18.48 that is £5K to £9K a year per listing.

Average price
£18.48inside the $15 to $100 sweet spot
Price range
£10.76–£34.29
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
2K–3K
Units per listing a year
250–500
Revenue per listing a year
£5K–£9K
Returns
0.6%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

17% of listings pay for placement with sponsored ads. 67% ship with Prime. On an average day, 2.2% of listings are out of stock. The average listing ranks #524 within Adhesives & Sealers. It carries 1,284 reviews at 4.47 stars, so a new listing needs social proof before a better product.

Sponsored listings
17%
Prime listings
67%
Out of stock, average day
2.2%
Average rank
#524in Adhesives & Sealers
Average rating
4.47 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,284per listing
Listings tracked
6

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 61 months on average, so the names here are established.

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

Products

Top Thompsons Water Seal 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 97% of clicks. A locked shelf that new listings rarely crack.

£0£9K£18K£26K£35K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

3 falling

Sellers

40

Est. top-5 brand share

100%

Top 20: 100%

Est. top-5 click share

97%

Top 20: 100%

Open market

0%

  • Thompson's60%
  • Ronseal34%
  • SAFEGUARD6%

Demand

Thompsons Water Seal search demand

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

700500Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug, Sep · busiest ÷ quietest = 2.7×

Reviews and returns

What reviews say buyers love and hate about Thompsons Water Seal

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 “Functionality-Overall”
0.6%of orders come back
“Did not work at all”
A buyer, on “Functionality-Overall”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.

16 topics

NegativePositive

FAQ

Common Thompsons Water Seal 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