basement foundation repair
Skip itWeak search conversion (1.4%) — this niche doesn't clear our bar today.
Returns
Great1.8%return rate — above 5% kills the launch gate
Review moat
Good565.29avg incumbent reviews — the moat a new listing must climb
Growth
Good+54.7%90-day search growth — must beat 0% to launch
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Good$148.06avg listing price — sweet spot $15–$100
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Price range
Okay$9.29–$279.05cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Market size
Okay$108K$108K/yr · 52K searches
Conversion
Bad1.4%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, basement foundation repair is a $108K/yr Amazon United States market (52K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 49/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
basement foundation repair market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $222K–$296K
- units × avg price
- Conversion rate
- 1.4%
- Avg BSR
- #481
- Page quality
- 0%
- Prime
- 57%
- Sponsored
- 81%
- Out of stock
- 0.0%
- Avg brand age
- 66 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.Brands
11 rising
Sellers
36
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
57%
Top 20: 99%
Open market
9%
- RadonSeal43%
- SolidFix Solutions22%
- Applied Technologies10%
- HXOGYUB9%
- DRICORE4%
- LCR4%
- Open — no brand owns it (5 brands, 9%)
Demand
Weekly Amazon search volume, last 51 weeks — +54.7% search growth over the last 90 days.Top basement foundation repair search terms
- foundation crack repair injection kit14K/yr
- foundation repair kit7K/yr
- radonseal8K/yr
- epoxy injection kit4K/yr
- radon seal4K/yr
- foundation repair4K/yr
- sikadur4K/yr
- radon sealant3K/yr
- foundation crack repair kit3K/yr
- basement foundation repair759/yr
Top basement foundation repair products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
RadonSeal Complete DIY Foundation Crack Repair Kit 10 ft - Low-Viscosity Urethane Injection Sealant for Crawl Spaces & Concrete Basement Walls - Stops Water Leaks - Drill-Free Filler
RadonSeal$154.664.6★1,167 rev
Concrete Crack Injection Kit DIY Basement Wall Crack Repair Polyurethane Leak Seal System Stops Active Water Leaks in Foundation Walls Easy No-Dig Injection Repair Kit - Ideal for DIY Projects
SolidFix Solutions$131.174.3★8 rev
RadonSeal Plus Concrete Sealer Deep Penetrating Waterproofing for Basement Floors Foundation Walls & Concrete Block Reduces Moisture & Strengthens Concrete (5 Gallon)
RadonSeal$239.154.1★360 rev
HXOGYUB Concrete Foundation Crack Repair Kit with Automatic Injector High Performance Filler for Wall Cracks Stops Water Leaks & Radon Gas Drill-Free Quick-Setting Waterproof Sealing Solution
HXOGYUB$115.484.2★17 rev
10 Fast Set Concrete Foundation Crack Repair Kit-Hydra Stop 300 Injection System Polyurethane Concrete Crack Repair Basement Wall Leak Sealant & Foundation Concrete Filler Tough Waterproof Seal
Applied Technologies$156.004.3★701 rev
Newest
by launch date
SolidFix Wall Crack Pro Repair Kit - Stops Basement & Foundation Leaks Permanently - Professional Urethane Injection System - DIY Friendly (Repairs 10ft of Cracks - Without Tool)
SolidFix Solutions$124.897 rev
SOLIDFIX Solutions Concrete Crack Repair Kit Foundation Crack Repair for Basement Walls Fast Setting and Easy to use Ideal for Basement Foundation Repair & DIY Projects. Made in the US (5 Feet Fix)
SolidFix Solutions$84.758 rev
Fernco 10 ft Basement and Foundation Wall Crack Repair Kit Leak Stop and Radon Gas Protection Pro Kit
Fernco$137.5611 rev
SolidFix 10ft Concrete Crack Repair Kit with All Tools Professional Urethane Injection System Wall Repair Paste for DIY Projects -Ideal Crack Filler to Stop Basement & Foundation Leak Permanently
SolidFix Solutions$157.477 rev
DRICORE PRO Concrete Repair Crack Injection Kit (5) | Injectable Filler: Repair Cracked Foundations Walls Basements Cement Structures | Waterproof Wet Or Dry Cracks | Expands 15x Its Volume
DRICORE$66.249 rev
Trending
90-day click momentumSOLIDFIX Solutions Concrete Crack Repair Kit Foundation Crack Repair for Basement Walls Fast Setting and Easy to use Ideal for Basement Foundation Repair & DIY Projects. Made in the US (5 Feet Fix)
SolidFix Solutions$84.754.3★
Concrete Crack Injection Kit DIY Basement Wall Crack Repair Polyurethane Leak Seal System Stops Active Water Leaks in Foundation Walls Easy No-Dig Injection Repair Kit - Ideal for DIY Projects
SolidFix Solutions$131.174.3★
SolidFix Wall Crack Pro Repair Kit - Stops Basement & Foundation Leaks Permanently - Professional Urethane Injection System - DIY Friendly (Repairs 10ft of Cracks - Without Tool)
SolidFix Solutions$124.895.0★
Titebond Radon Sealant Concrete Gray 10.1 Oz (12 Pack) Elastomeric Acrylic Foundation Caulk Flexible Crack Filler for Concrete Gaps UV Resistant Paintable Interior Exterior Use 3251
Titebond$71.805.0★
DRICORE PRO Concrete Repair Crack Injection Kit (5) | Injectable Filler: Repair Cracked Foundations Walls Basements Cement Structures | Waterproof Wet Or Dry Cracks | Expands 15x Its Volume
DRICORE$66.243.6★
What buyers say about basement foundation repair
What buyers praise and complain about, mined from review topics.What buyers love
“The product works well”
“Easy to use”
“Its premixed works good for filling in repair of cracks I had a piece of cement at my front door missing this filled in that gap and hardened worth the buy and affordable”
“As advertised”
“No more leak”
“Its well worth it”
“This repair kit is super amazing for both the cracks in the wall”
“Instructions were clear”
“Once dry, it's durable and looks like concrete”
“the resistance to water is amazing”
What buyers complain about
“It does not set/cure as described”
“Difficult to use”
“I inevitably spilled some”
“Terrible mess”
“the second tube never set up”
“Amazon needs better quality control”
“Product does not work well”
“Did not cure nor adhere to the wall”
“Just wish it was more of a cement color instead of a dark gray”
“Directions are a bit lacking”
Top return reasons
Common questions
- Is basement foundation repair profitable to sell on Amazon United States?
- The niche generates $108K/yr across 21 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +54.7%. Flapen's verdict: Skip it (49/100).
- How competitive is the basement foundation repair niche?
- 11 brands and 36 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in basement foundation repair?
- Top complaints mined from reviews: Functionality-Overall, Ease Of Use, Leak-Proof. The return rate is 1.8%.
- What does it cost to enter the basement foundation repair niche?
- Listings span $9.29–$279.05; the average listing price is $148.06 (sweet spot $15–$100). The average incumbent carries 565 reviews — the moat a new listing must climb.