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Radonseal

Maybe

Returns run at only 1.3% of orders. But buyers convert on only 2.0% of searches, so Radonseal is a Maybe.

Flapen Score
55
55 / 100
Top 21% of 9,536 Tools & Home Improvement niches · +7 vs the category median of 48
Market size
$215K/yr90K searches / yr
90-day growth
+40.2%search demand this quarter
Competition
48%top-5 click share · 15 brands · 76 sellers

Flapen Score

Radonseal against its category

The dotted line is the Tools & Home Improvement average. Past it, Radonseal is stronger. Inside it, weaker.

55Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Radonseal market on Amazon at a glance

Shoppers on Amazon United States searched for Radonseal 90K times last year and spent an estimated $215K. The top 5 brands take 79% of clicks. Demand peaks in Apr–Jun–Jul. Flapen scores it 55 out of 100, a Maybe.

01 · Demand

2.0% of searches ended in a purchase last week.

Shoppers searched for this 90K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 2.0% of those searches ended in a purchase. Searches in the last 90 days moved +40.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $215K a year.

Searches, last 12 months
90K
Growth, 90 days vs prior 90
+40.2%
Conversion, latest week
2.0%
Market size, estimated
$215Ka year
Peak month
June2.2× the quietest month
Top search term
foundation crack repair injection kit14K searches a year

02 · Price

A sale here is worth $117.51.

Listings sell for $117.51 on average, from $6.63 to $279.05. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At $117.51 that is $12K to $29K a year per listing.

Average price
$117.51above the $15 to $100 sweet spot
Price range
$6.63–$279.05
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
3K–4K
Units per listing a year
100–250
Revenue per listing a year
$12K–$29K
Returns
1.3%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

76% of listings pay for placement with sponsored ads. 66% ship with Prime. On an average day, 1.7% of listings are out of stock. The average listing ranks #390 within Adhesives & Sealers. It carries 952 reviews at 4.37 stars, so a new listing needs social proof before a better product.

Sponsored listings
76%
Prime listings
66%
Out of stock, average day
1.7%
Average rank
#390in Adhesives & Sealers
Average rating
4.37 starsAmazon United States average 4.42 stars
Average reviews
952per listing
Listings tracked
29

04 · Newcomers

Amazon counts 1 of last year's 3 launches as successful.

3 products launched here in the last 12 months. Amazon counts 1 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 62 months on average, so the names here are established.

Launched, last 12 months
3
Successful launches
1Amazon's first-year sales bar
Average brand age
62 months

Products

Top Radonseal products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 48% of clicks. Leaders hold, but buyers still shop past them.

$0$11K$21K$32K$43K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

15 rising

Sellers

76

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

48%

Top 20: 91%

Open market

15%

  • RadonSeal36%
  • SolidFix Solutions16%
  • DRICORE11%
  • Applied Technologies9%
  • HXOGYUB7%
  • DAP6%
  • Open — no brand owns it (9 brands, 15%)

Demand

Radonseal search demand

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

3K2KBlack Friday '24Spike '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Apr, Jun, Jul · busiest ÷ quietest = 2.2×

Search terms

Top Radonseal search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • foundation crack repair injection kit14K/yr
  • foundation repair kit7K/yr
  • radonseal8K/yr
  • foundation crack filler5K/yr
  • foundation crack repair6K/yr
  • epoxy injection kit4K/yr
  • dricore concrete repair crack injection kit3K/yr
  • foundation epoxy injection kit3K/yr
  • radon seal4K/yr
  • dricore4K/yr

Reviews and returns

What reviews say buyers love and hate about Radonseal

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Quality-Overall”
11%of negative reviews mention “Durability”
1.3%of orders come back
“Durability questionable”
A buyer, on “Durability”11% 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.

18 topics

NegativePositive

FAQ

Common Radonseal questions

Answered from the same tracked data.