bathroom undermount sink
Skip itWeak search conversion (1.1%) — this niche doesn't clear our bar today.
Brand share
Great45%top-5 brand share — no brand owns this niche
Review moat
Great194.77avg incumbent reviews — the moat a new listing must climb
Competition
Great27%top-5 click share — an open shelf
Avg price
Great$80.89avg listing price — sweet spot $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Price range
Okay$48.22–$249.28cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$91K$91K/yr · 99K searches
Growth
Bad-13.0%90-day search growth — must beat 0% to launch
Returns
Bad7.4%return rate — above 5% kills the launch gate
Conversion
Bad1.1%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, bathroom undermount sink is a $91K/yr Amazon United States market (99K searches/yr). The top 5 brands hold 45% of demand. Verdict: Skip it — 44/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
bathroom undermount sink market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $121K–$162K
- units × avg price
- Conversion rate
- 1.1%
- Avg BSR
- #93
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 95%
- Out of stock
- 3.1%
- Avg brand age
- 60 months
- Avg seller age
- 174 days
Competition & brand share
Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.Brands
39 falling
Sellers
86
Top-5 brand share
45%
Top 20: 88%
Top-5 click share
27%
Top 20: 61%
Open market
49%
- DeerValley14%
- Hugsleek10%
- HOROW8%
- Kohler8%
- Lordear6%
- Couoko6%
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — -13.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top bathroom undermount sink search terms
- undermount bathroom sinks11K/yr
- bathroom sink undermount18K/yr
- glass vessel sink9K/yr
- semi recessed bathroom sink9K/yr
- bathroom undermount sink7K/yr
- oval vessel sink8K/yr
- round bathroom sink7K/yr
- undermount bathroom sink rectangle7K/yr
- undermount vanity sink5K/yr
- round sink bowl4K/yr
Top bathroom undermount sink 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
DeerValley Undermount Bathroom Sink White Rectangle 21x15 Overflow Basin
DeerValley$60.844.6★338 rev
HOROW Undermount Bathroom Sink 20x15 Inch Rectangle Bathroom Sink with Deep Basin Anti-Splash Design Overflow Small Vanity Sink for Half and Full Bathroom
HOROW$57.604.4★108 rev
Undermount Bathroom Sink Rectangle Hugsleek Interior Bowl Size 18 x 13 inch White Porcelain Ceramic Vessel Sink Under Counter Exterior Size 20x15in Rectangular Bath Sink Basin Lavatory Fireclay
Hugsleek$67.894.8★149 rev
KOHLER 20000-0 Caxton Rectangle Undermount Bathroom Sink Bathroom Vanity Sink with Overflow Drain 20-1/4 L x 15-11/16 W White
Kohler$103.614.3★544 rev
Undermount Bathroom Sink Rectangle Hugsleek Interior Bowl Size 16 x 11 inch White Porcelain Ceramic Vessel Sink Under Counter Exterior Size 18x13in Rectangular Bath Sink Basin Lavatory Fireclay
Hugsleek$64.004.8★149 rev
Newest
by launch date
Lordear Vessel Sink Rectangle 19 Inch Bathroom Sinks 19x12 Inch Semi Recessed Sink 5 Deep Rectangular White Ceramic Modern Vanity Sink Bath Wash Above Counter Basin
Lordear$85.2516 rev
18in Undermount Bathroom Sink Rectangular 18.1 x 13.8 Vessel Sink Rectrangle Undermount Bathroom Sink White Ceramic Lavatory Vanity Vessel Sink with Overflow
kjineaten$83.8353 rev
Bathroom Semi Recessed Sink Eridanus 21 x 13 Semi-Recessed Bathroom Sink Rectangular White Durable Ceramic Vessel Sinks for Bathroom Modern Sink Vanity Sink Space-Saving
Eridanus$71.32200 rev
18W x 13D Undermount Bathroom Sink Los Flexi Compact Rectangular 18 Inch Ceramic Undermount Lavatory Sinks for Small Bathrooms White Undercounter Vanity Sinks with Overflow
Los Flexi$58.7527 rev
Lordear Vessel Sink 19 x 12 Inch Semi Recessed Bathroom Sink Rectangular White Ceramic Vessel Sink Modern Vanity Sink Bath Wash Sinks Bowl Above Counter Basin
Lordear$67.5816 rev
Trending
90-day click momentumLordear Vessel Sink Rectangle 19 Inch Bathroom Sinks 19x12 Inch Semi Recessed Sink 5 Deep Rectangular White Ceramic Modern Vanity Sink Bath Wash Above Counter Basin
Lordear$85.254.2★
Lordear Undermount Bathroom Sink 18x14 Inch White Rectangle Porcelain Ceramic Vessel Sinks Deep Basin with Overflow Lavatory Vanity Sink Mounted Under the Counter
Lordear$66.904.6★
KOHLER 2882-0 Verticyl Rectangular Undermount Bathroom Sink 19 3/4 White
Kohler$190.824.5★
KINGWONG 16 Inch Undermount Bathroom Sink Small White Porcelain Rectangular Ceramic Sink with Overflow Under Counter Wash Basin for Tiny House RV Laundry Powder Room Easy to Clean 15.75 x 11.82
KINGWONG$73.164.6★
Undermount Bathroom Sink Rectangle Hugsleek Interior Bowl Size 16 x 12 inch White Porcelain Ceramic Vessel Sink Under Counter Exterior Size 18x14in Rectangular Bath Sink Basin Lavatory Fireclay
Hugsleek$66.834.8★
What buyers say about bathroom undermount sink
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality and look perfect in our bathrooms”
“Size that I needed”
“Good product for the price”
“perfect modern design”
“Easy to install”
“Exactly as described”
“Thick glass looks great with this Black Pearl granite countertop”
“Nice Shape”
“good quality material”
“The sinks are solid”
What buyers complain about
“Did not fit”
“Oh no sink drain”
“We haven't installed it yet”
“The description doesn't indicate that”
“50/50 Defective and Leaking”
“No quality control”
“The Cut-Out Too much Trouble To Provide”
“Does not work”
“Extremely loud faucet”
“Good a little costly”
Top return reasons
Common questions
- Is bathroom undermount sink profitable to sell on Amazon United States?
- The niche generates $91K/yr across 78 tracked products. 1 of 15 products launched in the last 360 days are still selling. 90-day search growth is -13.0%. Flapen's verdict: Skip it (44/100).
- How competitive is the bathroom undermount sink niche?
- 39 brands and 86 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 45% of demand.
- What do buyers complain about in bathroom undermount sink?
- Top complaints mined from reviews: Size-Overall, Drainage, Assembly/Installation. The return rate is 7.4% — above our launch gate.
- When does demand for bathroom undermount sink peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the bathroom undermount sink niche?
- Listings span $48.22–$249.28; the average listing price is $80.89 (sweet spot $15–$100). The average incumbent carries 195 reviews — the moat a new listing must climb.