Block Blitz
brand-locked demand (top 5 brands take 100% of clicks) — Block Blitz doesn't clear our bar today.
Flapen Score
Is Block Blitz profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Block Blitz is a £67K/yr Amazon United Kingdom market (30K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 44/100.
Block Blitz: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -27.8% over the last 90 days and 11.4% of searches end in a purchase.
£67K
revenue / yr
Who owns the niche?
The top 5 brands hold 100% of demand, so 0% of the market is open.
0%
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 · 7 products
Top Block Blitz 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
Block Blitz Block Paving Eco Cleaner. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. 6 x Pouches. Treats 30 sq/m.
- Price
- £19.68
- Rating
- 4.5/5
- Reviews
- 282
- Age
- 1y ago

Block Blitz Block Paving Eco Cleaner. 8x 390g Pouches. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. Treats 120 sq/m.
- Price
- £25.64
- Rating
- 4.3/5
- Reviews
- 956
- Age
- 5y ago

Block Blitz Block Paving Eco Cleaner Treatment: 10 x 390g Pouches Removes and Prevents Algae Moss Black Spot and Weed Growth on 150 Sq/m of Paving
- Price
- £33.33
- Rating
- 4.5/5
- Reviews
- 298
- Age
- 7y ago

BB Block Blitz Original Eco Block Paving & Patio Decking Cleaner Weed Moss & Algae Remover Sachets Biodegradable Outdoor Cleaner (Pack 1 (2 sachets))
- Price
- £10.27
- Rating
- 4.2/5
- Reviews
- 13
- Age
- 7mo ago

Block Blitz Block Paving Eco Cleaner. 4x 390g Pouches. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. Treats 60 sq/m.
- Price
- £15.68
- Rating
- 4.2/5
- Reviews
- 305
- Age
- 5y ago
Trending
90-day click momentum
Block Blitz Block Paving Eco Cleaner. 4x 390g Pouches. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. Treats 60 sq/m.
- Price
- £15.68
- Rating
- 4.2/5
- Reviews
- 305
- Age
- 5y ago

BB Block Blitz Original Eco Block Paving & Patio Decking Cleaner Weed Moss & Algae Remover Sachets Biodegradable Outdoor Cleaner (Pack 1 (2 sachets))
- Price
- £10.27
- Rating
- 4.2/5
- Reviews
- 13
- Age
- 7mo ago

Block Blitz Block Paving Eco Cleaner. 8x 390g Pouches. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. Treats 120 sq/m.
- Price
- £25.64
- Rating
- 4.3/5
- Reviews
- 956
- Age
- 5y ago

BB Block Blitz Original Eco Block Paving & Patio Decking Cleaner Weed Moss & Algae Remover Sachets Biodegradable Outdoor Cleaner Pack of 2 (4 Sachets)
- Price
- £16.16
- Rating
- 4.2/5
- Reviews
- 13
- Age
- 7mo ago

Block Blitz Block Paving Eco Cleaner Treatment: 10 x 390g Pouches Removes and Prevents Algae Moss Black Spot and Weed Growth on 150 Sq/m of Paving
- Price
- £33.33
- Rating
- 4.5/5
- Reviews
- 298
- Age
- 7y ago
Newest
by launch date
BB Block Blitz Original Eco Block Paving & Patio Decking Cleaner Weed Moss & Algae Remover Sachets Biodegradable Outdoor Cleaner (Pack 1 (2 sachets))
- Price
- £10.27
- Rating
- 4.2/5
- Reviews
- 13
- Age
- 7mo ago

BB Block Blitz Original Eco Block Paving & Patio Decking Cleaner Weed Moss & Algae Remover Sachets Biodegradable Outdoor Cleaner Pack of 2 (4 Sachets)
- Price
- £16.16
- Rating
- 4.2/5
- Reviews
- 13
- Age
- 7mo ago

Block Blitz Block Paving Eco Cleaner. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. 6 x Pouches. Treats 30 sq/m.
- Price
- £19.68
- Rating
- 4.5/5
- Reviews
- 282
- Age
- 1y ago

Block Blitz Block Paving Eco Cleaner. 8x 390g Pouches. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. Treats 120 sq/m.
- Price
- £25.64
- Rating
- 4.3/5
- Reviews
- 956
- Age
- 5y ago

Block Blitz Block Paving Eco Cleaner. 4x 390g Pouches. Removes and Prevents Algae Moss and Black Spot. Deters Weed Growth for up to 6 Months. Treats 60 sq/m.
- Price
- £15.68
- Rating
- 4.2/5
- Reviews
- 305
- Age
- 5y ago
Competition: brands, sellers & click share
The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.
Brands
2 rising
Sellers
14
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
89%
Top 20: 100%
Open market
0%
- Block Blitz79%
- DTD QUALITY MATTERS21%
- Open — no brand owns it (0%)
Block Blitz demand & seasonality
Weekly search volume, with the niche's key stats alongside.
What reviews say buyers love and hate about Block Blitz
What buyers mention most, as a share of all reviews.
What buyers love
98% of reviews“Easy to use”
“Used previous does the job properly”
“Does everything it says”
“Patio cleaner”
“Excellent product”
What buyers complain about
92% of reviews“However, followed instructions to the letter & made no difference to my drive & patio whatsoever”
“Be careful when opening”
“did not do a very good job on my very old slabs”
“Its a lot of money to spend to make something look worse”
“Why has this turned my white stones a dirty brown”
Block Blitz return rate & reasons
Why buyers send it back, as a share of all return requests.
0.0%
Return rate
7%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Block Blitz 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.









