Gutter Sealant
Gutter Sealant shows low returns (0.8%), but prices mostly outside the sweet spot ($2.71–$15.61) keeps it on the watch list.
Flapen Score
Is Gutter Sealant profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Gutter Sealant is a £47K/yr Amazon United Kingdom market (67K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Jun–Sep. Verdict: Worth a look — 51/100.
Gutter Sealant: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +10.6% over the last 90 days and 8.6% of searches end in a purchase.
£47K
revenue / yr
Who owns the niche?
The top 5 brands hold 71% of demand, so 29% of the market is open.
29%
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 · 27 products
Top Gutter Sealant 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
Everbuild Everflex Roof and Gutter Sealant Butyl-Based Sealant and Adhesive for Roofing Excellent Weathering Properties Black 295 ml
- Price
- £2.71
- Rating
- 4.3/5
- Reviews
- 3,749
- Age
- 19y ago

EVO-STIK Roof and Gutter Sealant Repairs Leaks Excellent Weather Resistance Lasts up to 10 Years Colour: Black Size: 290ml
- Price
- £5.32
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 12y ago

Sika Stixall Extreme Power Sealant and Adhesive Waterproof Black 290ml
- Price
- £4.42
- Rating
- 4.6/5
- Reviews
- 7,030
- Age
- 19y ago

FLOPLAST 114mm square gutter seal - Bag of 10
- Price
- £7.46
- Rating
- 4.5/5
- Reviews
- 486
- Age
- 8y ago

Polar Leak Fix Waterproof Sealant Spray 400ml Clear
- Price
- £10.74
- Rating
- 4.1/5
- Reviews
- 4,576
- Age
- 7y ago
Trending
90-day click momentum
Gorilla Waterproof Coat & Seal Clear 473ml - Weatherproof Liquid Sealant | Stops & Prevents Leaks | For Roof Tiles Brick Wood Metal Concrete Stone Rubber Plastics*
- Price
- £12.34
- Rating
- 4.5/5
- Reviews
- 2,353
- Age
- 1y ago

1ABOVE 400ml Waterproof Leak Sealant Spray for Roofs & Pipes
- Price
- £5.81
- Rating
- 4.3/5
- Reviews
- 126
- Age
- 4y ago

Hemway Jet Black Construction Sealant & Adhesive 300ml - 1 Pack
- Price
- £8.50
- Rating
- 4.4/5
- Reviews
- 3,009
- Age
- 2y ago

EVO-STIK Roof and Gutter Sealant Repairs Leaks Excellent Weather Resistance Lasts up to 10 Years Colour: Black Size: 290ml
- Price
- £5.32
- Rating
- 4.2/5
- Reviews
- 54
- Age
- 12y ago

EVO-STIK Sticks Like Sh*t Waterproof Sealant Clear - 290ml - All-Purpose - Mould resistant
- Price
- £6.47
- Rating
- 4.5/5
- Reviews
- 1,127
- Age
- 10y ago
Newest
by launch date
Stormdry One Coat Liquid Rubber Leak Seal (500ml Black) | Quick-Dry Waterproof Leak Sealer for Emergency Roof and Gutter Repair on Brick Concrete Metal Roof Felt | Self-Levelling
- Price
- £15.61
- Rating
- 4.4/5
- Reviews
- 139
- Age
- 11mo ago

Roof Sealant - Waterproof Bitumen Sealant for Roofing Felt Gutter Caravans and Asphalt Roof Felt Adhesive - Stops Leaks & Weatherproof (310ML)
- Price
- £10.10
- Rating
- 4.4/5
- Reviews
- 256
- Age
- 1y ago

Gorilla Waterproof Coat & Seal Clear 473ml - Weatherproof Liquid Sealant | Stops & Prevents Leaks | For Roof Tiles Brick Wood Metal Concrete Stone Rubber Plastics*
- Price
- £12.34
- Rating
- 4.5/5
- Reviews
- 2,353
- Age
- 1y 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

Hemway Jet Black Construction Sealant & Adhesive 300ml - 1 Pack
- Price
- £8.50
- Rating
- 4.4/5
- Reviews
- 3,009
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
Brands
15 rising
Sellers
156
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
46%
Top 20: 91%
Open market
24%
- FloPlast22%
- Everbuild18%
- GORILLA13%
- EVO-STIK12%
- Sika7%
- Polar Specialist Coatings6%
Gutter Sealant demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jun, Sep · busiest ÷ quietest = 3.1×
Top Gutter Sealant search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- gutter sealant36K/yr
- gutter rubber seal7K/yr
- gutter seal7K/yr
- gutter sealant black5K/yr
- gutter seals3K/yr
- roof and gutter sealant3K/yr
- gutter repair3K/yr
- guttering sealant3K/yr
What reviews say buyers love and hate about Gutter Sealant
What buyers mention most, as a share of all reviews.
What buyers love
81% of reviews“Quality Sealant”
“As advertised”
“no more leaks”
“great sticky stuff”
“Easy to use”
What buyers complain about
69% of reviews“Leak”
“It struggles to stick to itself”
“Doesnt do what it says it should do”
“I wondered why the product was priced suspiciously cheap”
“very hard to squeeze out”
Gutter Sealant return rate & reasons
Why buyers send it back, as a share of all return requests.
0.8%
Return rate
46%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Gutter Sealant questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.








