Thompsons Water Seal
FailThe top 5 brands take 100% of clicks, so Thompsons Water Seal is a Fail.
- Flapen Score
- 42 / 100Ranks 1,704 of 2,225 DIY & Tools niches · −7 vs the category median of 4942
- 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.
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.
Top sellers
by estimated 90-day click share
RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L) Clear
- Price
- £17.42
- Rating
- 4.5/5
- Reviews
- 2,956
- Age
- 19y ago

TWSU5L 5L Thompsons One Coat Water-Seal
- Price
- £20.48
- Rating
- 4.5/5
- Reviews
- 1,236
- Age
- 19y ago

Ronseal TWSEAL1L Thompsons Water Seal 1 Litre
- Price
- £10.76
- Rating
- 4.4/5
- Reviews
- 560
- Age
- 19y ago

Raincheck Water Seal 5 Litre - Breathable Clear Exterior Brick Stone Mortar & Concrete Sealer
- Price
- £14.37
- Rating
- 4.4/5
- Reviews
- 2,451
- Age
- 11y ago

Ronseal TWSEAL25L Thompsons Water Seal 2.5 Litre
- Price
- £13.58
- Rating
- 4.5/5
- Reviews
- 398
- Age
- 19y ago
Trending
estimated 90-day click momentum
2 x Thompsons Water Seal Waterproofer & Protector Brick Concrete Stone 5 Litre
- Price
- £34.29
- Rating
- 4.5/5
- Reviews
- 100
- Age
- 12y ago

Raincheck Water Seal 5 Litre - Breathable Clear Exterior Brick Stone Mortar & Concrete Sealer
- Price
- £14.37
- Rating
- 4.4/5
- Reviews
- 2,451
- Age
- 11y ago

RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L) Clear
- Price
- £17.42
- Rating
- 4.5/5
- Reviews
- 2,956
- Age
- 19y ago

TWSU5L 5L Thompsons One Coat Water-Seal
- Price
- £20.48
- Rating
- 4.5/5
- Reviews
- 1,236
- Age
- 19y ago

Ronseal TWSEAL1L Thompsons Water Seal 1 Litre
- Price
- £10.76
- Rating
- 4.4/5
- Reviews
- 560
- Age
- 19y ago
Newest
by launch date
Raincheck Water Seal 5 Litre - Breathable Clear Exterior Brick Stone Mortar & Concrete Sealer
- Price
- £14.37
- Rating
- 4.4/5
- Reviews
- 2,451
- Age
- 11y ago

2 x Thompsons Water Seal Waterproofer & Protector Brick Concrete Stone 5 Litre
- Price
- £34.29
- Rating
- 4.5/5
- Reviews
- 100
- Age
- 12y ago

RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L) Clear
- Price
- £17.42
- Rating
- 4.5/5
- Reviews
- 2,956
- Age
- 19y ago

TWSU5L 5L Thompsons One Coat Water-Seal
- Price
- £20.48
- Rating
- 4.5/5
- Reviews
- 1,236
- Age
- 19y ago

Ronseal TWSEAL1L Thompsons Water Seal 1 Litre
- Price
- £10.76
- Rating
- 4.4/5
- Reviews
- 560
- Age
- 19y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 97% of clicks. A locked shelf that new listings rarely crack.
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.
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.
“Did not work at all”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
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








