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2.5-gallon Mold and Mildew Stain Remover Concentrated Outdoor Cleaner

Ratings & Reviews for 30 SECONDS 2.5-gallon Mold and Mildew Stain Remover Concentrated Outdoor Cleaner

4.5
4189
Review
 4.5 out of 5
4223 Reviews


87% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

This outdoor cleaning product effectively removes mold, mildew, dirt, and stains from various outdoor surfaces like siding, decks, and concrete. It offers powerful cleaning action that often works in 30 seconds or less, without extensive scrubbing. The product can be used safely around plants when applied as directed. However, some users noted it may require multiple applications or longer dwell times for heavily soiled areas, and the bleach-based formula can potentially discolor fabrics and damage plants if not rinsed thoroughly. Overall, this appears to be a high-performing outdoor cleaner that delivers good value when used carefully.

Customer review summary generated by AI, including incentivized reviews.
4223 Customer Reviews

Brush any residual mildew , rinses right off!

Would Recommend

Worked really well on concrete cleaning and siding on enclosed porch.

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Buy it

Would Recommend

It works

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Cleaned metal shed

Would Recommend

Excellent cleaner for mold and mildew.

May 2, 2026
Verified Purchaser
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Really works on Moss

Loved this product Removed green moss off concrete Worked quickly Easy to use Tried other products but none worked

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Cleans!

Would Recommend

Easy to use, it cleans mold and mildew.

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Easy peasy

Would Recommend

This is so easy to use and works so well. Once a year I purchase this cleaner for my home. You literally just spray it on and you can see it wash away. Will continue to use year after year

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Worked well.

Would Recommend

Worked well on a heavily mildewed cypress door. Used a pump sprayer.

May 2, 2026
From 1-gallon Mold and Mildew Stain Remover Concentrated Outdoor Cleaner Verified Purchaser
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Effective and easy cleaning

Would Recommend

Works well used to pressure wash and clean my house, even had one bottle from anyr or two ago and it still cleaned!

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works just as well as name brand

I didn’t dilute any out of this 1 gallon jug. Sprayed it on my vinyl siding and now it looks new.

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Great cleaning product

Would Recommend

Great product, easy to use, works as advertised

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It was so easy and finished great

Would Recommend

We washed our fence this worked great

May 2, 2026
From 1-gallon Mold and Mildew Stain Remover Concentrated Outdoor Cleaner Verified Purchaser
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30 seconds and gone

Would Recommend

Mixed the product a little heavy and it worked very well. Plan to use it on other areas that have been difficult to clean.

May 2, 2026
Verified Purchaser
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works

Would Recommend

Safe and effective.

May 2, 2026
From 1-gallon Mold and Mildew Stain Remover Concentrated Outdoor Cleaner Verified Purchaser
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Still takes some scrubbing to work the best

Would Recommend

Worked like expected

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The 1 gallon size can refill the spray bottle.

Would Recommend

This product is fantastic. It removed the algae on my fencing quickly. One of the associates at Lowe's suggested this product and I am grateful for the recommendation.

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Cleaned my vinyl siding very well

Would Recommend

Easy to use

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