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.

grout stain

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Avg price

Great$20.13

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

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

Good2.6%

return rate — above 5% kills the launch gate

Competition

Okay58%

top-5 click share — leaders hold, buyers still browse

Conversion

Okay3.1%

search→purchase rate — share of searches ending in a sale

Market size

Bad$100K

$100K/yr · 159K searches

Review moat

Bad4,378.41

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad100%

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

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

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

58%

Top 20: 98%

Open market

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.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top grout stain search terms

mapei grout refresh32K/yr +111.9%1.1% conv.
grout refresh24K/yr +115.8%1.4% conv.
grout colorant19K/yr +10.3%0.9% conv.
grout pen beige17K/yr +36.5%8.0% conv.
grout stain21K/yr -10.0%0.9% conv.
grout refresh colorant and sealer6K/yr +156.5%1.1% conv.
mapei ultracare grout refresh4K/yr +414.6%1.3% conv.
grout color7K/yr +30.0%0.7% conv.
grout dye8K/yr +0.1%1.1% conv.
grout stain and sealer6K/yr +35.1%1.2% conv.

All 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.

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

MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5047 Charcoal

Mapei$22.734.4★4,149 rev

MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5117 Pure White

Mapei$21.234.4★4,149 rev

MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5093 Warm Gray

Mapei$21.104.4★4,149 rev

MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5220 Eggshell

Mapei$18.974.3★1,265 rev

Grout Pen Beige Tile Paint Marker: Waterproof Grout Paint Tile Grout Colorant and Sealer Pen - Beige Narrow 5mm Tip (7mL)

Rainbow Chalk Markers Limited$8.864.3★8,648 rev

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$17.891,192 rev

8mo ago

MAPEI UltraCare Grout Refresh Universal Grout Colorant & Sealer 8 oz Bottle Easy Grout Restoration & Protection 5117 Pure White

Mapei$21.234,149 rev

1y ago

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$16.8513,572 rev

4y ago

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$17.7913,572 rev

4y ago

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$25.77393 rev

5y ago

What buyers say about grout stain

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use27%

“Easy to Use”

Quality-Overall14%

“Excellent product”

Advertised Vs Actual Product9%

“As advertised”

Color8%

“Color is accurate”

Ease Of Cleaning7%

“The floor looks clean”

Efficiency7%

“it does the job”

Value For Money5%

“Worth the price”

Product Condition3%

“Looks brand new”

Durability2%

“feels durable and well-made”

Maintenance And Repair2%

“This is a great deal to make a simple repair”

What buyers complain about

Color21%

“color not as expected”

Functionality-Overall14%

“Not Effective”

Durability9%

“Came off after a few days”

Paint Quality6%

“Painted grout”

Ease Of Cleaning6%

“messy I just pressed it in with my finger”

Ease Of Use5%

“difficult to use”

Quality-Overall4%

“Not the best purchase”

Advertised Vs Actual Product3%

“Doesnt work as advertised”

Value For Money3%

“Don't waste your money”

Maintenance And Repair3%

“May have to be redone every few months”

Top return reasons

Color63%

Functionality-Overall9%

Advertised Vs Actual Product6%

Value For Money3%

Paint Quality2%

Defective Material/Parts2%

Size-Overall2%

Product Condition1%

Leak-Proof1%

Adhesion/Stickiness1%

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.