Leak Sealer
prices mostly outside the sweet spot ($4.17–$13.39) — Leak Sealer doesn't clear our bar today.
Flapen Score
Is Leak Sealer profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Leak Sealer is a £68K/yr Amazon United Kingdom market (94K searches/yr). The top 5 brands hold 61% of demand. Verdict: Skip it — 48/100.
Leak Sealer: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -13.1% over the last 90 days and 8.8% of searches end in a purchase.
£68K
revenue / yr
Who owns the niche?
The top 5 brands hold 61% of demand, so 39% of the market is open.
39%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.
0/100
page quality · 23 products
Top Leak Sealer products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Kudos-Trading - Fernox 61016 Leak Sealer LS-X External Or Internal Water Pipe Leakage Repair Seal Jointing Compound 50g Plumbers Pipe Fitters DIY plumbers mait
- Price
- £11.68
- Rating
- 4.3/5
- Reviews
- 382
- Age
- 3y ago
Fernox LS-X External Leak Sealer 50ml White Plastic & Metal Handheld Sealer
- Price
- £8.70
- Rating
- 4.4/5
- Reviews
- 1,128
- Age
- 12y ago
Polar Leak Fix Waterproof Sealant Spray 400ml Clear
- Price
- £10.74
- Rating
- 4.1/5
- Reviews
- 4,576
- Age
- 7y ago
1ABOVE 400ml Waterproof Leak Sealant Spray for Roofs & Pipes
- Price
- £5.81
- Rating
- 4.3/5
- Reviews
- 126
- Age
- 4y ago
Duck Tape Wrap-Fix Self-Fusing Repair Tape | Self Amalgamating | Self Bonding for Plumbing | Leaking Pipe Repair Tape | Rubber Tape | Waterproof Black 25mm x 3m
- Price
- £6.21
- Rating
- 4.1/5
- Reviews
- 2,057
- Age
- 11y ago
Trending
90-day click momentum1ABOVE 400ml Waterproof Leak Sealant Spray for Roofs & Pipes
- Price
- £5.81
- Rating
- 4.3/5
- Reviews
- 126
- Age
- 4y ago
Holts Radweld Plus Coolant Leak Repair Total Coolant Leak Repair Industry Leading Car Radiator Leak Sealant Easy To Use Seal Engine Block Cylinder Head Hoses & More Suitable For All Cars 250ml
- Price
- £6.19
- Rating
- 4.5/5
- Reviews
- 2,578
- Age
- 15y ago
Fernox 61016 NA 50 ml LS-X External Leak Sealant Heating
- Price
- £10.37
- Rating
- 4.7/5
- Reviews
- 7
- Age
- 13y ago
Bartoline Leak Sealer Clear 400ml Premium Transparent Waterproof Spray Sealant for Instant Repairs Weatherproof Durable & Overpaintable
- Price
- £9.23
- Rating
- 4.2/5
- Reviews
- 50
- Age
- 10mo ago
151 Stop That Leak Repair Spray
- Price
- £4.67
- Rating
- 3.9/5
- Reviews
- 2,012
- Age
- 8y ago
Newest
by launch dateBartoline Leak Sealer Clear 400ml Premium Transparent Waterproof Spray Sealant for Instant Repairs Weatherproof Durable & Overpaintable
- Price
- £9.23
- Rating
- 4.2/5
- Reviews
- 50
- Age
- 10mo ago
Pipe Thread Sealant - Anaerobic Sealant for Metal Pipes Gaskets Fittings & Threaded Joints - Medium Viscosity High Pressure Resistant Oil-Proof & Removable (50ml)
- Price
- £10.20
- Rating
- 4.6/5
- Reviews
- 236
- Age
- 1y ago
Target Control Waterproof Tape for Leaks | 5M X 55MM | Pipe Leak Repair Tape Butyl Waterproof Sealing Tape for Roof Gutter & Outdoor Use
- Price
- £7.39
- Rating
- 4.3/5
- Reviews
- 671
- Age
- 1y ago
300g Invisible Waterproof Sealant Anti-Leaking Clear Insulation Sealant Super Strong Anti-Leakage Agent For Roof Bathroom Patio Sealer Outdoor Indoor
- Price
- £8.86
- Rating
- 4.2/5
- Reviews
- 796
- Age
- 2y ago
Gorilla Waterproof Black Coat & Seal Spray 450ml Flexible Weatherproof Liquid Sealant | Seals out Water Air & Moisture | For Roof Tiles Brick Wood Metal Concrete Stone Rubber Plastics*
- Price
- £13.39
- Rating
- 4.4/5
- Reviews
- 519
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
Brands
19 falling
Sellers
138
Top-5 brand share
61%
Top 20: 100%
Top-5 click share
54%
Top 20: 97%
Open market
33%
- Kudos-Trading18%
- Fernox18%
- Polar Specialist Coatings9%
- 1ABOVE8%
- Duck7%
- Tiger Tape6%
Leak Sealer demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.8×
Top Leak Sealer search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- leak sealer19K/yr
- water leak sealant10K/yr
- pipe sealant for leaking water pipes9K/yr
- plumbing sealant7K/yr
- fernox ls-x leak sealer7K/yr
- stop leak5K/yr
- pipe sealant6K/yr
- leak sealant5K/yr
- radiator leak sealer6K/yr
- lsx3K/yr
What reviews say buyers love and hate about Leak Sealer
What buyers mention most, as a share of all reviews.
What buyers love
86% of reviews“As advertised”
“A good clear product”
“Good product and sticks well”
“No leaks”
“So handy”
What buyers complain about
81% of reviews“got a leak”
“Failed to work”
“Poor adhesive”
“very disappointing especially at this price”
“absolutely rubbish”
Leak Sealer return rate & reasons
Why buyers send it back, as a share of all return requests.
0.7%
Return rate
22%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Leak Sealer questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
