grout brush
Worth a lookShows searches that convert (13.1% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Conversion
Incredible13.1%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Market size
Great$1.2M$1.2M/yr · 893K searches
Brand share
Good64%top-5 brand share — brands hold most of the demand
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Okay$10.35avg listing price — sweet spot $15–$100
Price range
Okay$2.91–$19.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Bad7,594.57avg incumbent reviews — the moat a new listing must climb
Growth
Bad-7.1%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, grout brush is a $1.2M/yr Amazon United States market (893K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in Jul. Verdict: Worth a look — 57/100.
Data updated Jul 12, 2026 · scored weekly · How we score niches
grout brush market data
- Units sold / yr
- 100K–125K
- avg 5,000–6,000/product
- Revenue / yr
- $1.0M–$1.3M
- units × avg price
- Conversion rate
- 13.1%
- Avg BSR
- #68
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 76%
- Out of stock
- 0.0%
- Avg brand age
- 43 months
- Avg seller age
- 163 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
87
Top-5 brand share
64%
Top 20: 100%
Top-5 click share
53%
Top 20: 99%
Open market
30%
- Lumkew31%
- OXO9%
- MR.SIGA9%
- Betanull8%
- SetSail7%
- Fox Trot6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.1% search growth over the last 90 days.Peak months: Jul · busiest ÷ quietest = 1.6×
Top grout brush search terms
- grout brush460K/yr
- grout cleaner brush75K/yr
- grout cleaning brush52K/yr
- grout scrubber58K/yr
- tile brush30K/yr
- grout brushes for cleaning16K/yr
- tile cleaning brush28K/yr
- grout cleaning tool23K/yr
- grout scrub brush18K/yr
- tile grout brush17K/yr
Top grout brush 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
Lumkew Grout Cleaner Brush V Shape Stiff Grout Cleaning Brushes for Tile Floor Handheld Grout Scrub Brush Set for Shower Bathroom Kitchen Household Use 2 pcs
Lumkew$6.834.6★1,849 rev
Betanull Crevice Cleaning Brush Set Multi-Purpose Hard Bristle Brushes for Deep Cleaning Kitchen Bathroom Grout Sink Cup Teapot Bottle Blender Corners Tight Spaces & More
Betanull$9.724.6★2,185 rev
Lumkew Grout Cleaning Brush V Shape Stiff Grout Cleaner Brush for Floors Tile Grout Scrubber Bathroom Shower Corner 1 Pcs
Lumkew$8.664.5★365 rev
MR.SIGA Heavy Duty Grout Scrub Brush with Long Handle Shower Floor Scrubber for Cleaning Tile Scrub Brush with Stiff Bristles
MR.SIGA$19.854.5★7,027 rev
SetSail Grout Cleaner Brush with Long Handle V-Shaped Floor Scrub Brush Swivel Grout Brush Stiff Bristle Floor Grout Scrubber for Bathroom Tile Line Crevice Kitchen Wall Deck Garage White Grey
SetSail$10.004.5★916 rev
Newest
by launch date
JiedHiur 11Pcs V-Shaped Grout Cleaning Brush Set with Stiff Bristles Crevice Cleaning Brush and Steel Scraper Deep Cleaning Supplies for Cleaning Bathrooms Kitchens Tiles and Windows
JiedHiur$9.5234 rev
IVYROLL Grout Brush with Long Handle Grout Cleaner Brush for Tile Floors Stiff Bristles for Crevice Tile Line Shower Kitchen Bathroom
IVYROLL$10.11320 rev
15pcs Crevice Cleaning Brush Hard Bristle Scrub Brushes Tools Multifunctional Grout Brush for Home Bathroom Ktichen Window and Corners
AONEZ$5.79743 rev
Lumkew Grout Cleaning Brush V Shape Stiff Grout Cleaner Brush for Floors Tile Grout Scrubber Bathroom Shower Corner 1 Pcs
Lumkew$8.66365 rev
Grout Brush with Long Handle & Hard Bristle Crevice Cleaning Brush Grout Cleaner for Tile Floors Floor Scrubber for Tile Grout Line Household Use Multipurpose Gap Cleaning Tools by Foxtrot Living
Fox Trot$17.525,184 rev
Trending
90-day click momentumJiedHiur 11Pcs V-Shaped Grout Cleaning Brush Set with Stiff Bristles Crevice Cleaning Brush and Steel Scraper Deep Cleaning Supplies for Cleaning Bathrooms Kitchens Tiles and Windows
JiedHiur$9.524.4★
CLEANGOR Grout Cleaner Brush V Shape Stiff Grout Cleaning Brushes for Tile
CLEANGOR$5.654.5★
Grout Brush with Long Handle & Hard Bristle Crevice Cleaning Brush Grout Cleaner for Tile Floors Floor Scrubber for Tile Grout Line Household Use Multipurpose Gap Cleaning Tools by Foxtrot Living
Fox Trot$17.524.4★
15pcs Crevice Cleaning Brush Hard Bristle Scrub Brushes Tools Multifunctional Grout Brush for Home Bathroom Ktichen Window and Corners
AONEZ$5.794.7★
OXO Good Grips Grout Brush
OXO$8.204.6★
What buyers say about grout brush
What buyers praise and complain about, mined from review topics.What buyers love
“Great for cleaning”
“Excellent product”
“Ease of use”
“Great deal”
“It works beautifully”
“As described”
“This kit is so useful and very sturdy”
“Durable material”
“They are perfect sizes to get in every small space”
“A great variety of brushes”
What buyers complain about
“a bit harder to clean”
“Flimsy plastic”
“lower quality”
“Not as small as I thought the brushes would be”
“Fell apart”
“didn't work”
“black brushes are too soft”
“The metal rusts immediately”
“Hard to use”
“what I thought was going to be a great deal turned out to be a waste of money”
Top return reasons
Common questions
- Is grout brush profitable to sell on Amazon United States?
- The niche generates $1.2M/yr across 21 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -7.1%. Flapen's verdict: Worth a look (57/100).
- How competitive is the grout brush niche?
- 16 brands and 87 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 64% of demand.
- What do buyers complain about in grout brush?
- Top complaints mined from reviews: Ease Of Cleaning, Strength, Quality-Overall. The return rate is 0.8%.
- When does demand for grout brush peak?
- Demand peaks in Jul; the busiest month runs 1.6× the quietest.
- What does it cost to enter the grout brush niche?
- Listings span $2.91–$19.85; the average listing price is $10.35 (sweet spot $15–$100). The average incumbent carries 7,595 reviews — the moat a new listing must climb.