Hose-End Outdoor Cleaner - 32 Ounces - U49910 - Great for Outdoor Glass and Surfaces

When I bought this I didn’t expect much. The home I was cleaning hadn’t had its windows cleaned in a decade. First I cleaned around the windows with a cobweb brush to remove cobwebs, and loose debris. I then used Zep per directions. WOW! The difference was amazing, almost all the accumulated dirt, grime, and water spot disappeared. I only had to wipe a small number of spots on a few windows. The windows cleared and dried quickly, I didn’t have to dry any. This stuff really works.

I used 2 containers of the Zep outdoor window cleaner and am so happy with the results. I wish they sold refills for the containers! I would recommend a day though with little to no wind so there isn't much blow back.

I needed to clean the dirt off the front windows so I had a nice clear view before winter sets in, but because of an injury, I couldn’t do it like usual which is to remove the set in storm windows. They are old windows. I had used another brand at one time- same idea: stand and spray. Didn’t work so well. Decided to try Zep. Couldn't find individual bottles at stores near me. It worked great. I was concerned there would be streaks because I knew it would get between the window and the storms but couldn't be helped. Didn't matter. Didn't streak. And I sprayed all the front windows and the door. Good product. Bought two have one full bottle left.

It seemed to work relatively well. No attempts were made to rinse thoroughly I did notice a little residue afterwards. When I received the product it was leaking in the package.

Worked as described. Outside Windows look great.

Easy to use. Cleaning was only a little better than just spraying with water.

If I had known how well it was going to work, I would have taken before and after photos. Imagine windows that haven't been cleaned on the outside for a good ten years, with screens that can't be removed and a green film making it impossible to see outside – that's what I was dealing with. A friend who used to work for Zep always raved about their products, so when I found it on Amazon, I was willing to give it a try. I didn't expect much, but my windows now look brand new, and it took me less than an hour to clean all the windows on the entire house. The best part is that it worked without removing the screens and it cleaned them too! Kudos to the bottle designers for making it work flawlessly even with low water pressure. I can't believe how well this worked. So happy ☺️!"

Windows left streaky and dirty. Not happy with product at all. Had to hand wash afterward.