10 Best mildew stain removers of 2025

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1

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ACTIVE
ACTIVE Mold Stain Remover Gel Cleaner Heavy Duty Stain Cleaner for Front Loader Washing Machine Seal, Bathroom Grout, Shower, Caulk - Front Load Washer Cleaning Solution - 7 Fl Oz

27% Off
Main highlights

Powerful Whitening Deep Cleaner
ACTIVE Seal & Grout Stain Remover offers instant mold stain removal.

Ideal for Front Loader Washers
Perfect for cleaning washer gaskets, shower tiles, and grout.

Highly Effective on Mold Stains
Customers praise its ability to restore surfaces to like-new condition.
Key specs
- volume:9.59 ounces
- cleaning method:Apply on Seals
- scent:Gentle Odor
- specific instructions:See Product Directions
- perfume:Gentle Odor
9.8

Exceptional

Our Rating
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Value for Money

2

Bastion

Bastion Mold Stain Remover Power Gel Cleaner Heavy Duty Cleaning Solution for Front Loader Washing Machine Seal, Bathroom Grout, Shower, Caulk (7 fl oz)
9.5

Excellent

Our Rating
3

RMR Brands
RMR-86 Pro Instant Mold Stain & Mildew Stain Remover - Contractor Grade Cleaning Solution, Professional Quality Formula, Odor Removal, 1 Gallon
Main highlights

Powerful Mold Stain Remover
RMR-86 Pro instantly tackles tough mold stains with 5x strength.

Ideal for Professional Use
Perfect for contractors on surfaces like wood, concrete, and brick.

Quick and Effective Cleaning
Customers praise its ability to remove stains effortlessly and quickly.
9.3

Excellent

Our Rating

9.5
Simple to use

9.5
deep clean

9.1
worth the money
4

RMR Brands
RMR-86 Instant Mold and Mildew Stain Remover Spray - Scrub Free Formula, 2 Pack - 32 oz.

13% Off
Main highlights

Instant Stain Removal
The RMR-86 spray quickly eliminates mold and mildew stains without scrubbing.

Versatile Surface Applicability
Ideal for use on decks, wood, vinyl siding, drywall, and more.

Highly Effective Performance
Customers praise its ability to completely remove stains and mold quickly.
9.2

Excellent

Our Rating

9.5
Simple to take off

9.3
deep clean

9.1
Simple to use
5

STAR BRITE
STAR BRITE Mold & Mildew Stain Remover – Lifts Dirt & Removes Mildew Stains on Contact, White, 32 oz. (085632)
Main highlights

Stain Removal Ease
Removes mildew stains on contact without heavy scrubbing, saving time and effort.

Versatile Application
Ideal for marine, home, and RV use, safe on multiple surfaces.

Customer Praised Effectiveness
Highly effective on vinyl and upholstery, restoring surfaces to like-new condition.
9.0

Excellent

Our Rating

9.7
Simple to use

9.3
worth the money
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6

STAR BRITE
STAR BRITE The Outdoor Collection Mildew Stain Remover - 32 OZ (54432)
Main highlights

Key Features and Benefits
Effortlessly removes mold and mildew stains without scrubbing. Features buffered-bleach for gentle use on various surfaces, enhancing cleaning power.

Ideal Use Cases
Perfect for cleaning awnings, fiberglass, wood, concrete, and outdoor fabrics. Ideal for boats, homes, RVs, and commercial settings.

Customer Reviews Highlight
Most praised for its effectiveness in removing tough stains quickly without damaging surfaces or fabrics.
8.9

Very Good

Our Rating

9.5
Simple to use

9.1
Simple to take off

8.7
worth the money
7

30 SECONDS
30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.
Main highlights

Instant Brightening Effect
Noticeably brightens surfaces, removing mold and mildew stains instantly.

Versatile Indoor Outdoor Use
Ideal for drywall, wood, fences, bathrooms, kitchens, and more.

No Scrubbing Needed
Highly praised for removing stains without the need for scrubbing.
8.8

Very Good

Our Rating
8

STAR BRITE
STAR BRITE Ultimate Mildew Stain Remover - Fast Acting Gel Spray Formula Stays On Stains Longer To Reduce Scrubbing 16 OZ (098616)
Main highlights

Key Features
Fast-acting, versatile cleaner with gel spray technology for vertical surfaces; gentle on materials, ideal for various surfaces and environments.

Ideal Use Cases
Perfect for boats, RVs, homes, especially in high-moisture areas like bathrooms and kitchens, and suitable for a wide range of surfaces.

Customer Reviews
Most praised for its quick and efficient stain removal without the need for hard scrubbing, making cleaning tasks easier and more effective.
8.7

Very Good

Our Rating

9.7
Simple to take off

9.5
Simple to use

9.1
worth the money
9

RMR Brands
RMR - Tub and Tile Cleaner, Mold & Mildew Stain Remover, Industrial-Strength, No-Scrub Foam Cleaner, Modern Orchard Scent, 30 Fl Oz
Main highlights

Powerful Stain Removal
Eliminates mold and mildew stains quickly and effectively without scrubbing.

Ideal for Bathrooms
Perfect for renewing tiles and grout in bathrooms and showers.

Highly Praised Performance
Customers love the quick stain removal and minimal effort required.
8.6

Very Good

Our Rating

9.9
worth the money

9.9
Simple to use

9.9
deep clean
10

RMR Brands
RMR-86M Marine Stain Remover, Professional-Strength Mold Stain & Mildew Stain Eliminating Cleaning Spray For Boats & Marine Surfaces, 32 oz
Main highlights

Powerful Stain Removal
Removes tough mold and mildew stains with 5x cleaning power.

Perfect for Marine Use
Ideal for cleaning vinyl seats, dashboards, and fiberglass.

Effortless Cleaning Experience
Customers praise its fast action and no-scrub formula.
8.5

Good

Our Rating