---
title: "Grout Stain — $100K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/grout-stain"
last_updated: "2026-08-09T07:19:23.960Z"
locale: en
meta:
description: "Niche score 47/100 · $100K/yr market · 159K searches/yr · $20.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $100K/yr market · 159K searches/yr · $20.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Grout Stain — $100K/yr Amazon US Niche (2026) - Flapen"
---
# **grout stain**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 25Growth 70Conversion 39Competition 45Returns 59Price range 64Avg price 88Brand share 0Review moat 25Quality gap 75
**Avg price**
**Great****$20.13**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Growth**
**Good****+52.1%**
90-day search growth — must beat 0% to launch
**Price range**
**Good****$8.85–$25.80**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.6%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Okay****3.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$100K**
$100K/yr · 159K searches
**Review moat**
**Bad****4,378.41**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, grout stain is a $100K/yr Amazon United States market (159K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **grout stain market data**
- **Units sold / yr**
- **5K–6K**
- avg 100–250/product
- **Revenue / yr**
- **$101K–$121K**
- units × avg price
- **Conversion rate**
- **3.1%**
- **Avg BSR**
- **#22**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **0.9%**
- **Avg brand age**
- **71 months**
- **Avg seller age**
- **141 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**5 **▼falling
**Sellers**
**44**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 98%
**Open market**
**0%**
- Mapei77% - Rainbow Chalk Markers Limited19% - TEC2% - ZippySolve1% - PENTAUSA1%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +52.1% search growth over the last 90 days.
5K4KSpike '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/grout-stain/trend)
## **Top grout stain search terms**
- **mapei grout refresh**32K/yr+111.9%1.1% conv. - **grout refresh**24K/yr+115.8%1.4% conv. - **grout colorant**19K/yr+10.3%0.9% conv. - **grout pen beige**17K/yr+36.5%8.0% conv. - **grout stain**21K/yr-10.0%0.9% conv. - **grout refresh colorant and sealer**6K/yr+156.5%1.1% conv. - **mapei ultracare grout refresh**4K/yr+414.6%1.3% conv. - **grout color**7K/yr+30.0%0.7% conv. - **grout dye**8K/yr+0.1%1.1% conv. - **grout stain and sealer**6K/yr+35.1%1.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/grout-stain/search-terms)
## **Top grout stain 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.
0%10%$10K20%$20K30%$30K40%$40K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5047 Charcoal**Mapei**$22.73**4.4★4,149 rev](https://www.amazon.com/dp/B074VGLTZW) [2**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5117 Pure White**Mapei**$21.23**4.4★4,149 rev](https://www.amazon.com/dp/B0DC1KZ3G4) [3**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5093 Warm Gray**Mapei**$21.10**4.4★4,149 rev](https://www.amazon.com/dp/B0723CX392) [4**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5220 Eggshell**Mapei**$18.97**4.3★1,265 rev](https://www.amazon.com/dp/B006IS9B2G) [5**Grout Pen Beige Tile Paint Marker: Waterproof Grout Paint Tile Grout Colorant and Sealer Pen - Beige Narrow 5mm Tip (7mL)**Rainbow Chalk Markers Limited**$8.86**4.3★8,648 rev](https://www.amazon.com/dp/B006MCTB3W)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Tile Grout Repair Kit Restore & Renew Tile Joints Line Fast Drying Tile Grout Paint Squeeze Tube for Bathroom Shower Kitchen Floor Waterproof (8.8 oz Ivory)**ZippySolve**$17.89**1,192 rev8mo ago](https://www.amazon.com/dp/B0G3TRWJMS) [**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5117 Pure White**Mapei**$21.23**4,149 rev1y ago](https://www.amazon.com/dp/B0DC1KZ3G4) [**Grout Pen White Tile Grout Paint Marker: Waterproof Tile Grout Colorant and Sealer Pens for Cleaner Looking Floors & Whitener Without Bleach - Narrow 5mm 2 Pack with Extra Tips (7mL) - White**Rainbow Chalk Markers Limited**$16.85**13,572 rev4y ago](https://www.amazon.com/dp/B09GBKD5Q4) [**Grout Pen Beige Tile Paint Marker: Waterproof Grout Paint Tile Grout Colorant and Sealer Pen - Narrow 5mm 2 Pack with Extra Tips (7mL) - Beige**Rainbow Chalk Markers Limited**$17.79**13,572 rev4y ago](https://www.amazon.com/dp/B09GG6ZLC6) [**TEC Grout Colorant - Refresh and Seal or Change Grout Joint Color | A Faster and Easier Alternative to Regrouting Tile | 8 oz. Application Covers up to 350 sq. ft. - 934 Slate Gray**TEC**$25.77**393 rev5y ago](https://www.amazon.com/dp/B092XMPTD4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5009 Gray**Mapei**$21.15**4.4★**▲ 116%**](https://www.amazon.com/dp/B009NT5VOY) [**Tile Grout Repair Kit Restore & Renew Tile Joints Line Fast Drying Tile Grout Paint Squeeze Tube for Bathroom Shower Kitchen Floor Waterproof (8.8 oz Ivory)**ZippySolve**$17.89**4.4★**▲ 105%**](https://www.amazon.com/dp/B0G3TRWJMS) [**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5047 Charcoal**Mapei**$22.73**4.4★**▲ 75%**](https://www.amazon.com/dp/B074VGLTZW) [**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5079 Cocoa**Mapei**$20.30**4.4★**▲ 70%**](https://www.amazon.com/dp/B006253EKA) [**MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5093 Warm Gray**Mapei**$21.10**4.4★**▲ 33%**](https://www.amazon.com/dp/B0723CX392)
**~~View all trending →~~**
## **What buyers say about grout stain**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**27%
*“Easy to Use”*
**Quality-Overall**14%
*“Excellent product”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Color**8%
*“Color is accurate”*
**Ease Of Cleaning**7%
*“The floor looks clean”*
**Efficiency**7%
*“it does the job”*
**Value For Money**5%
*“Worth the price”*
**Product Condition**3%
*“Looks brand new”*
**Durability**2%
*“feels durable and well-made”*
**Maintenance And Repair**2%
*“This is a great deal to make a simple repair”*
### **What buyers complain about **
**Color**21%
*“color not as expected”*
**Functionality-Overall**14%
*“Not Effective”*
**Durability**9%
*“Came off after a few days”*
**Paint Quality**6%
*“Painted grout”*
**Ease Of Cleaning**6%
*“messy I just pressed it in with my finger”*
**Ease Of Use**5%
*“difficult to use”*
**Quality-Overall**4%
*“Not the best purchase”*
**Advertised Vs Actual Product**3%
*“Doesnt work as advertised”*
**Value For Money**3%
*“Don't waste your money”*
**Maintenance And Repair**3%
*“May have to be redone every few months”*
### **Top return reasons **
**Color**63%
**Functionality-Overall**9%
**Advertised Vs Actual Product**6%
**Value For Money**3%
**Paint Quality**2%
**Defective Material/Parts**2%
**Size-Overall**2%
**Product Condition**1%
**Leak-Proof**1%
**Adhesion/Stickiness**1%
## **Common questions**
- **Is grout stain profitable to sell on Amazon United States?**
- The niche generates $100K/yr across 22 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +52.1%. Flapen's verdict: Skip it (47/100).
- **How competitive is the grout stain niche?**
- 5 brands and 44 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in grout stain?**
- Top complaints mined from reviews: Color, Functionality-Overall, Durability. The return rate is 2.6%.
- **When does demand for grout stain peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the grout stain niche?**
- Listings span $8.85–$25.80; the average listing price is $20.13 (sweet spot $15–$100). The average incumbent carries 4,378 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)