foundation crack repair kit
Skip itA small market ($34K/yr) — this niche doesn't clear our bar today.
Growth
Great+82.8%90-day search growth — must beat 0% to launch
Review moat
Great419.93avg incumbent reviews — the moat a new listing must climb
Avg price
Good$148.95avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Good2.7%return rate — above 5% kills the launch gate
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Price range
Bad$58.99–$279.37cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad96%top-5 brand share — brand-locked demand
Market size
Bad$34K$34K/yr · 10K searches
According to Flapen's Amazon United States niche tracking, foundation crack repair kit is a $34K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Mar–Apr–Jun. Verdict: Skip it — 41/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
foundation crack repair kit market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $37K–$74K
- units × avg price
- Conversion rate
- 2.2%
- Avg BSR
- #390
- Page quality
- 0%
- Prime
- 79%
- Sponsored
- 100%
- Out of stock
- 1.8%
- Avg brand age
- 83 months
- Avg seller age
- 177 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
7 falling
Sellers
11
Top-5 brand share
96%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
2%
- SolidFix Solutions38%
- RadonSeal20%
- HXOGYUB16%
- Applied Technologies13%
- DRICORE8%
- Liquid Rubber2%
- Open — no brand owns it (1 brand, 2%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +82.8% search growth over the last 90 days.Peak months: Mar, Apr, Jun · busiest ÷ quietest = 4.2×
Top foundation crack repair kit 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$131.654.3★8 rev
HXOGYUB Concrete Foundation Crack Repair Kit with Automatic Injector
HXOGYUB$115.204.2★17 rev
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$154.694.6★1,167 rev
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$124.805.0★7 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$155.994.3★702 rev
Newest
by launch dateSolidFix Wall Crack Pro Repair Kit - Stops Basement & Foundation Leaks Permanently - Professional Urethane Injection System - DIY Friendly (Repairs 10ft of Cracks - Without Tool)
SolidFix Solutions$124.807 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$85.478 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$157.027 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$66.2610 rev
HXOGYUB Concrete Foundation Crack Repair Kit with Automatic Injector
HXOGYUB$115.2017 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$85.474.3★
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$124.805.0★
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$131.654.3★
DRICORE PRO Concrete Repair Carbon Fiber Reinforcement Kit (Step Three) | Use Reinforcing Strip With Adhesive To Seal Vertical Indoor and Outdoor Cracks in Home Wall Basement Building Office Workplace
DRICORE$83.674.2★
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$66.263.6★
What buyers say about foundation crack repair kit
What buyers praise and complain about, mined from review topics.What buyers love
“Great product”
“No more leak”
“It all went perfectly and successfully”
“Easy to use”
“Instructions were clear”
“I called in a professional and for that and was charged $800”
“As advertised”
“Give yourself a good working surface next to your repair, read and prepare your actions, set aside at least 2 days and you will be good”
“Great sealer”
“not a drop of water coming in”
What buyers complain about
“Difficult to use”
“Next rain the original leaks were addressed”
“Product does not work well”
“Does not work”
“your product is way too thin”
“Directions are a bit lacking”
“Did not cure nor adhere to the wall”
“it seems they havent improved the corner injector design”
“The most time-consuming part was the setup”
“This crack was much smaller”
Top return reasons
Common questions
- Is foundation crack repair kit profitable to sell on Amazon United States?
- The niche generates $34K/yr across 14 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +82.8%. Flapen's verdict: Skip it (41/100).
- How competitive is the foundation crack repair kit niche?
- 7 brands and 11 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in foundation crack repair kit?
- Top complaints mined from reviews: Ease Of Use, Leak-Proof, Defective Material/Parts. The return rate is 2.7%.
- When does demand for foundation crack repair kit peak?
- Demand peaks in Mar–Apr–Jun; the busiest month runs 4.2× the quietest.
- What does it cost to enter the foundation crack repair kit niche?
- Listings span $58.99–$279.37; the average listing price is $148.95 (sweet spot $15–$100). The average incumbent carries 420 reviews — the moat a new listing must climb.