Renu Universal House Wash-Incredible Coverage Of 2000+ SF | Removes Stains, Oxidation & More | Ideal For Vinyl Siding, Decks, Fences, Pavers & Outdoor Fabrics | Surfaces Stay Clean for up to 3 Yrs.

This cleaner does work to remove years of dirt and oxidation. Here are the caveats: You need to mix it stronger than what the bottle recommends. We used a 60% water to 40% cleaner solution mix. This seems to work pretty good. You have to leave it on the siding for at least 5-6 minutes and then scrub it with a medium-soft bristle brush to remove the oxidation layers. It requires some elbow grease! WEAR GLOVES! This stuff is caustic and it will irritate your skin! Rinse immediately if you get it on bare skin. We tried other stuff but this cleaner actually did the job pretty well on 20 year old siding! We will buy this again.

This Renu product works great. After You’re through using this cleaner, you’re going to need Renu’s “Restore” product to protect your vinyl. If You don’t use the “restore” process, then you’re going to be cleaning your siding annually. Buy the “Restore” product. Note, These Renu products don’t do large areas. Read the application label to determine how much you will need.

It does a nice job of cleaning vinyl siding.

I purchased this product to remove oxidation on vinyl siding as indicated in the product description. However, after the initial use I found it not to be performing as indicated. I moved on to an area that had not been treated yet to make a determination if it was doing anything at all. I placed a piece of painters tape over the untreated vinyl siding and proceeded to apply the diluted cleaner as indicated on the instructions. After letting it set for the appropriate amount of time and a light brush scrub I rinsed it off and remove the tape and found that there was no difference in the treated and untreated finish of the vinyl siding. I let this area dry off, reapplied the tape, and tried using the product full strength in the same manner. After rinsing I removed the tape and again found no difference. This product may work okay on other applications, but it is not an appropriate solution for removing oxidation on vinyl siding. I would not recommend purchasing it for that purpose.

I’m attaching two pictures. One is a before shot showing heavy oxidation. The second is the after photo. The house is supposed to be blue, but due to the heavy oxidation, it appeared purple.I have tried other products and they just didn’t work or worked, but at the risk of damaging or needing scrubbing. I simply applied Renu Cleaner with a pump sprayer and let it sit for 7 minutes. I then tried two different methods. The first was with a scrub brush and light rinse. That worked well, but it took a bit to clean. The second way was to just pressure wash it off with a 25 degree tip. That worked like magic.This product is AWESOME!!!!! It helped me to get a customer’s house clean when other companies couldn’t even touch it. The product is easy to use and is the only thing I’ve seen actually work on oxidation.

I have used many different siding wash products over the years but have never been really happy with any of them. This year I tried Renu. Having been disappointed in the past I was skeptical but this product was a wonderful SURPRISE. It did a great job on normal dirt (bird droppings, bug "juice", etc.) but it even removed oxidation on my vinyl siding. I'm not usually one to write a product review but this product is so amazing I wanted to let you know.

Not that great of a product. I believe the strength might be very weak

It removed the oxidation from my vinyl fence. Hope it lasts three years like mentioned. Will use this product again.