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Customer reviews for Kärcher Concrete & Driveway Cleaning Detergent for Pressure Washers, Highly Concentrated, Makes up to 40 gallons of Cleaner, Cleans Concrete, Brick, Mansory, and Stone, Readily Biodegradable, Easy pour 1 Gallon. for
Kärcher Concrete & Driveway Cleaning Detergent for Pressure Washers, Highly Concentrated, Makes up to 40 gallons of Cleaner, Cleans Concrete, Brick, Mansory, and Stone, Readily Biodegradable, Easy pour 1 Gallon.
4.6 out of 5 stars
stars
24 ratings24 reviews
  1. 5 stars75% (18)
  2. 4 stars8% (2)
  3. 3 stars17% (4)
  4. 2 stars0% (0)
  5. 1 star0% (0)

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Showing 11-20 of 24 reviews
Apr 7, 2025
Reviewer name: sabrinam209_7228
4 out of 5 stars
4 out of 5 stars review

Great Value

[This review was collected as part of a promotion.] This product works to clean my pool patio tiles. I have residuals from trees and the lake that stain my tiles and this worked to take it out. It has a citrus scent that's a bit strong but not too bad. It was well packaged and is a great value for the amount of liquid to clean a large patio or driveway.

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Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Apr 10, 2025
Reviewer name: cathyhcdc5_7549
3 out of 5 stars
3 out of 5 stars review

Okay

[This review was collected as part of a promotion.] Sprayed on areas...backyard porch and carport...work a little bit, but not as effective as hoped...followed directions from container...pleasant scent...unsure if I would purchase in the store...depends on price.

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Apr 11, 2025
Reviewer name: jh103_7963
5 out of 5 stars
5 out of 5 stars review

Effective in removing grease

[This review was collected as part of a promotion.] This cleaner works! I use this all the time in our shop when cleaning because it easily dissolves and removes the grease. We have an industrial shop where grease can be all over the floor, either caused by lift oil leak or little spill from doing a project, this cleaner works great even though we had refinished our floor. I think it's mainly because it's concentrated and depending on how much grease or dirt we needed to remove, we can easily adjust the concentration needed. I know it says it's for concrete, but it works just as well in the type of floor we have and it's not slippery when it dries, it's why I mainly use it.

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Apr 8, 2025
Reviewer name: modestog_4795
3 out of 5 stars
3 out of 5 stars review

May work better on newer stains

[This review was collected as part of a promotion.] Didn't work better than any other cleaner I have tried. Pressure washed and scrubbed and still have oil stains in my driveway, albeit they are older stains so maybe this works better with new stains. Smells decent enough and is eco friendly so that's nice.

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Apr 10, 2025
Reviewer name: karenp201_6080
5 out of 5 stars
5 out of 5 stars review

Effective cleaner with a great scent!

[This review was collected as part of a promotion.] This concentrated concrete and driveway cleaner by Karcher works wonders and is easy to use. For heavy cleaning, instructions recommend 1 part concentrate to 4-10 parts water, and for light cleaning, it recommends 1 part concentrate to 39 parts water. Once applied, using a pressure washer or manually, let it soak for a few minutes and then spray down with water. My husband added this to our pressure washer to clean the driveway, and I spot cleaned some concrete areas. I definitely saw results, and it helped clean oil and dirt stains easily. The nice, citrus scent is a nice bonus. Overall, the results were fantastic, and I would absolutely recommend this cleaner to freshen up your driveway!

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Mar 5, 2025
Reviewer name: krish36_239
5 out of 5 stars
5 out of 5 stars review

It's almost auto-magic!

[This review was collected as part of a promotion.] Our driveway is covered by trees. Birds are flocking to the trees every evening and leave droppings everywhere, every day. It ends up mixing with dirt, mud, road grime and stains our driveway very badly. I have a Karcher pressure washer so this product is a must have. I add it into the tank and it takes the grime off with ease. Without it I have to pretreat the driveway with another “cleaner” and wait almost an hour for it to “work”. This stuff is like magic eraser for driveways.

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Mar 18, 2025
Reviewer name: darcyl6_651
5 out of 5 stars
5 out of 5 stars review

Came just at the right time! Works great!

[This review was collected as part of a promotion.] I received this complimentary product in exchange for my honest review. Boy did this product come right on time! We've been working on a patio addition to our lanai, and changing up the current lanai layout. The lanai would get so dirty and dusty and we wanted to be able to use it more as an extra sitting room when we have guests but the floor was horribly dirty and needed a good scrubbing. Our power washer wasn't working so I decided to still try using this product and the hose. I splashed some on the ground and used the sprayer nozzle to spray it away with a little pressure. My husband was so sure this wouldn't clean the floor or at least not in one shot! That before and after photo says otherwise! And it didn't even use half of the bottle for the entire floor! Highly recommend this stuff!

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Mar 5, 2025
Reviewer name: hail3_52
5 out of 5 stars
5 out of 5 stars review

Effective!

[This review was collected as part of a promotion.] This cleaner is very efficient in cleanung patio with the mild scent. After using it several times, the results wouls be great. It easily cuts through dirt and grime, leaving my patio looking fresh. Love it!

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Apr 2, 2025
Reviewer name: sunshinemom1_7782
5 out of 5 stars
5 out of 5 stars review

Effective concrete & driveway cleaner.

[This review was collected as part of a promotion.] The Karcher Concrete & Driveway Cleaner works excellent for cleaning concrete driveways removing dirt & oil effectively. It leaves the driveway looking very clean & works better than just pressure washing alone. Very easy to use with the pressure washer & it doesn't leave residue.

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386
Mar 12, 2025
Reviewer name: jeremyy5_9963
5 out of 5 stars
5 out of 5 stars review

Works great except on oil stains.

[This review was collected as part of a promotion.] Great product, works efficiently and effectively. I appreciate that the directions are easy to read, but I wish they included guidance on which dilution ratio is best for specific surfaces. Plus the information doesn't include anything about if I should avoid vegetation which is very useful. I used the medium duty mix on my concrete driveway with a pump sprayer. It worked well for small stains and stuck on dirt, but it didn't remove oil stains. After pressure washing, I compared treated and untreated areas, and you could clearly see the difference where I had used this cleaner. Another small but nice detail is that the bottle design prevents liquid from spilling all over when pouring, which is a plus. Overall, a solid cleaner for general concrete and patio maintenance.

Review from karcher.com
Helpful?36SCMEX8F8NW19403700386