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48-fl oz Multi-surface Concentrated Outdoor Cleaner

Ratings & Reviews for Wet & Forget 48-fl oz Multi-surface Concentrated Outdoor Cleaner

4.0
382
Review
 4.1 out of 5
389 Reviews


59% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers praise the product for effectively removing mold, mildew, and algae from outdoor surfaces with minimal effort. Most highlight its simplicity—attach to hose and spray—with visible results within days or weeks on siding, roofs, and concrete. The "wet and forget" approach is frequently cited as a major advantage. However, many report nozzle issues including twisting, detaching, or inconsistent spray, with effective range closer to 15-20 feet rather than advertised 30 feet. Some note variable results in shaded areas requiring multiple applications. Despite hardware concerns, most customers consider the cleaning performance worthwhile for routine maintenance.

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

Clean results in time

Easy to apply, starts cleaning within a few days. Don’t expect immediate improvement. However it is clearing up quite well. Hope it will last for a while as it states.

February 15, 2026
Verified PurchaserIncentivized
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Good, not great

Easy to apply, but didn’t get rid of green algae on siding

February 15, 2026
Verified PurchaserIncentivized
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Shingle cleaner

Would Recommend

Easy to apply shingle cleaner. Took a lot of dirt and grime off shingles without damaging them. Highly recommend.

February 3, 2026
Verified Purchaser
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Wet & Forget does a great job!

[This review was collected as part of a promotion.] We had some awful mildew stains on our siding. Sprayed Wet & Forget on it, then let us do its job. It made such a huge difference! The smell isn’t too overpowering and it dried fairly quickly. Overall, we were pleased with it and ended up buying more to use at our business!

February 3, 2026

From influenster.com

Solve your outdoors mold problems

Would Recommend

Great products, works as advertised, easy to use/spray but give it time.

January 30, 2026
Verified Purchaser
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Can't go wrong at Lowe's

Would Recommend

product as advertised...plus great price and in-store customer service

January 29, 2026
Verified Purchaser
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Would Recommend

This outdoor cleaner does a good job overall. I used it on my roof to remove algae. It’s easy to apply, and I like that a little goes a long way since it’s concentrated. The only reason I’m giving it four stars instead of five is the price, it’s a bit expensive for what it is. It works well and delivers results, but I wish it were more affordable. Still a solid product if you’re looking for an effective outdoor cleaner.

January 29, 2026
Verified Purchaser
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Was not worth the money.

Would Not Recommend

I used this on siding to remove a mild case of mold. It did nothing to address this very mild mold issue.

January 24, 2026
Verified Purchaser
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Works great

Would Recommend

Works great as it says and will Be buying more

December 25, 2025
Verified Purchaser
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Does a great job!

Would Recommend

Love this product. We get a lot of algae and mildew forming on the shady side of our house. A container of this will treat our siding and the shed out back. In a week the growths have faded and takes over a year to come back.

December 11, 2025
Verified Purchaser
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Complicated and should be one star

[This review was collected as part of a promotion.] I received this and after looking at the instructions, it seems complicated to me. Wet the grass so it doesn’t kill the grass before using? I honestly haven’t tried it yet and not sure that I will.

December 9, 2025

From influenster.com

Didn't work

Would Not Recommend

I was trying to remove the mildew on our propane tank. Mixed as stated, sprayed it liberally and waited. After several weeks and some rain storms, it did nothing. Manufacturer keeps saying it takes time, but are we talking weeks, months, years, decades???

November 30, 2025
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Easy to use.

Would Recommend

Very good driveway cleaner.

November 28, 2025
Verified Purchaser
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Dont waste your money on other brands

Would Recommend

It Works

November 23, 2025
Verified Purchaser
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