Rated 4.0 out of 5 by 85
Rated 5.0 out of 5.0 by John Cleans better than spraying alone
Used up two bottles of this power washing my 2400 sq foot two story house. Ran out on the last few walls so we tried power washing without soaking in ZEP first. Noticeable difference. Ended up running to the Depot for another gallon to soak the last few walls.
July 12, 2016
Rated 5.0 out of 5.0 by Rich Great on log home
Worked great on my log home. I have used many Zep products and have been very pleased with their performance. It works great in removing dirt, soot and grime with just a soaking and then pressure washing after about ten minutes. Couldn't be happier.
May 31, 2016
Rated 3.0 out of 5.0 by Roger Good cleaner to use with the pressure washer
We used Zep Commercial House and Siding Cleaner Concentrate in 20:1 ratio with our pressure washer and got some excellent results. It does not smell like a toxic solution and easy to work with. Over all an effective product that took care of the mold, dirt and fungus from the siding and the garage floor. It did not require any scrubbing but that may be because we were using a pressure washer.
May 1, 2016
Rated 1.0 out of 5.0 by Jace Not of any use at all
Used it with my new pressure washer at the recommended dilution then again at a stronger dilution. Could barely tell anything was done. It worked somewhat when I scrubbed the vinyl siding but even then left some gree mold. The product does not foam or suds up at all so it is hard to know if it is working. I may try another product or just return this along with the pressure washer and buy a scub brush on a pole instead
August 28, 2016
Rated 5.0 out of 5.0 by chris Great product , does as advertised
This product works as advertised, you should use it!
September 6, 2016
Rated 5.0 out of 5.0 by Nickname Pressure Wash Concentrate
I have been very happy with this product and will purchase it again, every time I pressure wash my house. My pressure washer has a dispenser but I'm sure this concentrate could also be applied with a hand sprayer easily. As always, Zep products are the best.
August 30, 2016
Rated 3.0 out of 5.0 by lanexa47 average
okay but no magic wand or silver bullet, too bad that my review is too short
August 31, 2016
Rated 2.0 out of 5.0 by Catsburg Mediocre At Best
Got this to pre-treat prior to pressure washing. Virtually no difference between this and plain water. Helped some because it is a detergent, but not enough to make me want to buy it again or recommend it to anyone.
September 1, 2016