zep mold and mildew cleaner
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Conversion
Good7.0%search→purchase rate — share of searches ending in a sale
Growth
Good+44.2%90-day search growth — must beat 0% to launch
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Good1,484.71avg incumbent reviews — the moat a new listing must climb
Price range
Good$3.80–$26.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$11.57avg listing price — sweet spot $15–$100
Market size
Okay$211K$211K/yr · 261K searches
Competition
Bad92%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, zep mold and mildew cleaner is a $211K/yr Amazon United States market (261K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Skip it — 47/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
zep mold and mildew cleaner market data
- Units sold / yr
- 15K–20K
- avg 1,000–1,250/product
- Revenue / yr
- $174K–$231K
- units × avg price
- Conversion rate
- 7.0%
- Avg BSR
- #19
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 86%
- Out of stock
- 1.0%
- Avg brand age
- 65 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 falling
Sellers
25
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
92%
Top 20: 100%
Open market
0%
- Zep94%
- 30 SECONDS6%
Demand & seasonality
Weekly Amazon search volume, last 96 weeks — +44.2% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.1×
Top zep mold and mildew cleaner search terms
- zep mold and mildew cleaner142K/yr
- zep mold and mildew remover30K/yr
- zep mold stain and mildew stain remover35K/yr
- zep mold19K/yr
- zep mildew and mold stain remover17K/yr
- zep mold and mildew14K/yr
- zep mold stain and mildew stain remover spray3K/yr
Top zep mold and mildew cleaner 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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Zep Mold Stain and Mildew Stain Remover - 32 oz (Pack of 4) ZUMILDEW32 - Professional Strength No Scrub Formula
Zep$14.114.6★367 rev
Zep Shower Tub and Tile Cleaner 32 Fl Oz
Zep$3.804.4★882 rev
Zep Mold Stain and Mildew Stain Remover 1 Gallon (Case of 2) ZUMILDEW128 - Professional Strength No Scrub Formula
Zep$26.314.4★27 rev
30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.
30 SECONDS$16.864.4★5,663 rev
Zep Home Pro Foaming Miracle Grout Cleaner & Protectant - 32 Fl. OZ - (Pack of 1) 2-in-1 for Sparkling Clean Grout Lines
Zep$5.044.3★1,137 rev
Newest
by launch dateZep Mold Stain and Mildew Stain Remover 1 Gallon (Case of 2) ZUMILDEW128 - Professional Strength No Scrub Formula
Zep$26.3127 rev
Zep Plus Grout Foaming Cleaner - 32 Fl OZ - R54212-2-in-1 benefits clean while protecting grout from water dirt and grime
Zep$9.911,391 rev
Zep Home Pro Foaming Miracle Grout Cleaner & Protectant - 32 Fl. OZ - (Pack of 1) 2-in-1 for Sparkling Clean Grout Lines
Zep$5.041,137 rev
30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.
30 SECONDS$16.865,663 rev
Zep Home Pro Multi-Purpose Foaming Bathroom Cleaner - 32 Fl. Oz. - R53106 - Pro Trusted Cleaning Power: Now in Refreshing Scents and Family Friendly Formulas (1)
Zep$5.00926 rev
Trending
90-day click momentumZep Mold Stain and Mildew Stain Remover 1 Gallon (Case of 2) ZUMILDEW128 - Professional Strength No Scrub Formula
Zep$26.314.4★
Zep Shower Tub and Tile Cleaner 32 Fl Oz
Zep$3.804.4★
Zep Mold Stain and Mildew Stain Remover - 32 oz (Pack of 4) ZUMILDEW32 - Professional Strength No Scrub Formula
Zep$14.114.6★
30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.
30 SECONDS$16.864.4★
Zep Plus Grout Foaming Cleaner - 32 Fl OZ - R54212-2-in-1 benefits clean while protecting grout from water dirt and grime
Zep$9.914.2★
What buyers say about zep mold and mildew cleaner
What buyers praise and complain about, mined from review topics.What buyers love
“Cleans great”
“Works perfectly”
“EXCELLENT PRODUCT”
“Exactly as advertised”
“Pleasant smell”
“Easy and fast to use”
“not costly”
“Its spray ability was good”
“just like new”
“Powerful stuff”
What buyers complain about
“Not effective”
“STRONG odor”
“Doesn't clean like it says”
“Leaks”
“it gets stained easily”
“It was expensive”
“Not as described”
“Lots of little grey and black marks”
“a lot of peopls do not read instructions”
“I am giving three star not for the product quality itself”
Top return reasons
Common questions
- Is zep mold and mildew cleaner profitable to sell on Amazon United States?
- The niche generates $211K/yr across 7 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +44.2%. Flapen's verdict: Skip it (47/100).
- How competitive is the zep mold and mildew cleaner niche?
- 2 brands and 25 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in zep mold and mildew cleaner?
- Top complaints mined from reviews: Functionality-Overall, Smell, Ease Of Cleaning. The return rate is 0.7%.
- When does demand for zep mold and mildew cleaner peak?
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 2.1× the quietest.
- What does it cost to enter the zep mold and mildew cleaner niche?
- Listings span $3.80–$26.31; the average listing price is $11.57 (sweet spot $15–$100). The average incumbent carries 1,485 reviews — the moat a new listing must climb.