---
title: "Zep Mold and Mildew Cleaner — $211K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/zep-mold-and-mildew-cleaner"
last_updated: "2026-08-09T13:20:31.029Z"
locale: en
meta:
description: "Niche score 47/100 · $211K/yr market · 261K searches/yr · $11.57 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $211K/yr market · 261K searches/yr · $11.57 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Zep Mold and Mildew Cleaner — $211K/yr Amazon US Niche (2026) - Flapen"
---
# **zep mold and mildew cleaner**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 41Growth 65Conversion 75Competition 7Returns 96Price range 50Avg price 46Brand share 0Review moat 50Quality gap 57
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****7.0%**
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**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,484.71**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$3.80–$26.31**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$11.57**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$211K**
$211K/yr · 261K searches
**Competition**
**Bad****92%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
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 ~~](https://flapen.com/research/methodology)
## **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.
9K7KSpike '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/health-household/zep-mold-and-mildew-cleaner/trend)
## **Top zep mold and mildew cleaner search terms**
- **zep mold and mildew cleaner**142K/yr+75.3%5.6% conv. - **zep mold and mildew remover**30K/yr+40.2%4.6% conv. - **zep mold stain and mildew stain remover**35K/yr-22.8%6.5% conv. - **zep mold**19K/yr+11.8%3.5% conv. - **zep mildew and mold stain remover**17K/yr+3.5%5.5% conv. - **zep mold and mildew**14K/yr+59.1%4.0% conv. - **zep mold stain and mildew stain remover spray**3K/yr+33.3%1.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/zep-mold-and-mildew-cleaner/search-terms)
## **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.
0%15%$32K30%$63K45%$95K60%$127K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Zep Mold Stain and Mildew Stain Remover - 32 oz (Pack of 4) ZUMILDEW32 - Professional Strength No Scrub Formula**Zep**$14.11**4.6★367 rev](https://www.amazon.com/dp/B00L27VIKG) [2**Zep Shower Tub and Tile Cleaner 32 Fl Oz**Zep**$3.80**4.4★882 rev](https://www.amazon.com/dp/B0013AV8FM) [3**Zep Mold Stain and Mildew Stain Remover 1 Gallon (Case of 2) ZUMILDEW128 - Professional Strength No Scrub Formula**Zep**$26.31**4.4★27 rev](https://www.amazon.com/dp/B0GY5MDZ6V) [4**30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.**30 SECONDS**$16.86**4.4★5,663 rev](https://www.amazon.com/dp/B0CZYV6M7N) [5**Zep Home Pro Foaming Miracle Grout Cleaner & Protectant - 32 Fl. OZ - (Pack of 1) 2-in-1 for Sparkling Clean Grout Lines**Zep**$5.04**4.3★1,137 rev](https://www.amazon.com/dp/B0DG9VVGCH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Zep Mold Stain and Mildew Stain Remover 1 Gallon (Case of 2) ZUMILDEW128 - Professional Strength No Scrub Formula**Zep**$26.31**27 rev3mo ago](https://www.amazon.com/dp/B0GY5MDZ6V) [**Zep Plus Grout Foaming Cleaner - 32 Fl OZ - R54212-2-in-1 benefits clean while protecting grout from water dirt and grime**Zep**$9.91**1,391 rev1y ago](https://www.amazon.com/dp/B0DTZ6VNM9) [**Zep Home Pro Foaming Miracle Grout Cleaner & Protectant - 32 Fl. OZ - (Pack of 1) 2-in-1 for Sparkling Clean Grout Lines**Zep**$5.04**1,137 rev1y ago](https://www.amazon.com/dp/B0DG9VVGCH) [**30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.**30 SECONDS**$16.86**5,663 rev2y ago](https://www.amazon.com/dp/B0CZYV6M7N) [**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**$5.00**926 rev4y ago](https://www.amazon.com/dp/B0B75KG2LV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Zep Mold Stain and Mildew Stain Remover 1 Gallon (Case of 2) ZUMILDEW128 - Professional Strength No Scrub Formula**Zep**$26.31**4.4★**▲ 116%**](https://www.amazon.com/dp/B0GY5MDZ6V) [**Zep Shower Tub and Tile Cleaner 32 Fl Oz**Zep**$3.80**4.4★**▲ 39%**](https://www.amazon.com/dp/B0013AV8FM) [**Zep Mold Stain and Mildew Stain Remover - 32 oz (Pack of 4) ZUMILDEW32 - Professional Strength No Scrub Formula**Zep**$14.11**4.6★**— 9%**](https://www.amazon.com/dp/B00L27VIKG) [**30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.**30 SECONDS**$16.86**4.4★**— 5%**](https://www.amazon.com/dp/B0CZYV6M7N) [**Zep Plus Grout Foaming Cleaner - 32 Fl OZ - R54212-2-in-1 benefits clean while protecting grout from water dirt and grime**Zep**$9.91**4.2★**▼ 35%**](https://www.amazon.com/dp/B0DTZ6VNM9)
**~~View all trending →~~**
## **What buyers say about zep mold and mildew cleaner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**20%
*“Cleans great”*
**Efficiency**16%
*“Works perfectly”*
**Quality-Overall**15%
*“EXCELLENT PRODUCT”*
**Advertised Vs Actual Product**11%
*“Exactly as advertised”*
**Smell**6%
*“Pleasant smell”*
**Ease Of Use**5%
*“Easy and fast to use”*
**Value For Money**4%
*“not costly”*
**Spray/Flow**2%
*“Its spray ability was good”*
**Product Condition**2%
*“just like new”*
**Strength**1%
*“Powerful stuff”*
### **What buyers complain about **
**Functionality-Overall**18%
*“Not effective”*
**Smell**14%
*“STRONG odor”*
**Ease Of Cleaning**12%
*“Doesn't clean like it says”*
**Leak-Proof**9%
*“Leaks”*
**Stain Resistance**7%
*“it gets stained easily”*
**Value For Money**6%
*“It was expensive”*
**Advertised Vs Actual Product**3%
*“Not as described”*
**Color**1%
*“Lots of little grey and black marks”*
**Instructions/User Manual/Troubleshooting**1%
*“a lot of peopls do not read instructions”*
**Quality-Overall**1%
*“I am giving three star not for the product quality itself”*
### **Top return reasons **
**Leak-Proof**40%
**Functionality-Overall**15%
**Stain Resistance**12%
**Advertised Vs Actual Product**10%
**Smell**4%
**Ease Of Cleaning**3%
**Value For Money**2%
**Spray/Flow**2%
**Material Quality**2%
**Defective Material/Parts**1%
## **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.
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