Karcher k4 Pressure Washer Review

The brand name “Karcher” is a well-known and sort after makers of pressure washers, window cleaners and steamers. In this Karcher, K4 review will be evaluating its many functions, controls and durability! We love using pressure washers because they take the hard work out of scrubbing, sanding and clear many surfaces in the garden.

The Karcher k4 Pressure Washer
The Karcher k4 Pressure Washer

They work great for:

  1. Concrete cleaning
  2. Decking cleaners
  3. Walls, paths & fences
  4. Car cleaning

The possibility of a good pressure washer is endless! But, can the Karcher K4 live up to expectations and warrant the price tag of around £230-250? Here at Wezaggle, we love reviewing high-end products for outside tasks, with Karcher K4 making these claims!

The Karcher Brand

Karcher is a family run business created by Alfred Karcher, he pioneered many of their unique designs. Based in Germany and shipped and produced all over the world.

In the UK Karcher is one of the leading brands for carpet cleaners, pressure washers, window cleaners and so on. They have a huge library of products that offer great engineering and unique patented designs!

The Karcher K4 Pressure Washer

If you’re looking for a powerful pressure washer then Karcher K4 stand head and shoulders above the rest. It has many functions and nozzles for a wide range of outside cleaning tasks.

I have personally been using the Karcher K4 for the majority of tasks within my business, but also in the garden and around my property!

Karcher k4 Breakdown & Ratings
Karcher k4 Breakdown & Ratings

Karcher K4 Price Breakdown and Review Rating:

  1. Ease of use:  5/5
  2. Price RANGE: 3/5
  3. Quality Of Product: 5/5
  4. Weight: 4/5
  5. Average £230 – £250

Review Digest. The Karcher K4 is a serious pressure washer, it produces a very strong pressure of 130 bar. It strips paints, moss, fungi, algae and many other surfaces extremely well.

What I also like about the Karcher K4 pressure washer is the many nozzles and adaptors for a wide range of tasks in the garden.

We are a contracting company for landscaping and would never use another machine for my customers. Yes, the price is high, but you are paying for a piece of equipment that will stand the test of time.

We have had our washer for many years and it’s still going strong considering we use it on a daily basis!

Karcher k4 Compact & Storage!
Karcher k4 Compact & Storage!

Reviewers Experience And Tips

Here are some tips customers have expressed through their reviews and testimonials:

  • Be sure to select the right pressure for the task. I stripped my decking after it became slimy after winter. I set it to the max but discovered it had splintered my decking boards. If you are going to strip wood such as decking, fence panels, summer houses ETC I would suggest you double-check the pressure because you can easily damage the grain of timber!
  • We love the patio adaptor because it works great for both decking and patios, although the product is fairly heavy we are very happy with the fresh-looking patio.

Karcher K4 Details

Not any yellow pressure will do! The Karcher K4 is a serious beast that gets the task done in no time. Here are the details that separate this model from the competition.

  1. The total weight: 11.4kg
  2. Total pressure 130
  3. Length of hose: 6m
  4. Length of power adaptor: 5m


  • Excellent adaptors for all surfaces in the garden
  • Clean stone, wood, concrete, decking and much more
  • Easily stored and adaptors clip-on so no losing parts


  • A heavy piece of equipment over 11kg
  • Price is high
  • Will ruin wood if pressure is too high!

Editors Not – Kerchar K4 Review

The Karcher K4 is a serious piece of equipment, for both commercial and private use. It can overcome any task and clean any surface making it like new!

Our experience of the Karcher K4 is 10/10 for its ability to clean and restore a huge variety of surfaces, we use it for all trade and jobs within our company!

“I provide a patio cleaning company and would “ONLY” use the Karcher models because it beats the competiton with ease. We have used many other pressure washer brands from the UK market, without any success compared to pressure, nozzles and length of time.

Our Karcher K4 model has been going strong for18 months now with daily use! The only issue we had was a rubber valve deteriorated and was replaced within a week of sending it off to be repaired. Since this issue, we have never looked back from our purchase of the Kerchar K4 pressure washer!

What Do You Think Of Your Karcher K4?

Have you purchased a Karcher K4 pressure washer? We want to hear your reviews and feedback, although we have many opinions on this product we still want to know your own reviews.

This gives other readers more opinions and a better understanding before making a choice before purchasing the Karcher K4! Submit your reviews and feedback through our contact form!


  1. Lisa Riley1 December 17, 2019
  2. Keeting December 17, 2019
  3. Ross December 17, 2019
    • Wezaggle December 18, 2019
  4. Ultimate reviewer Pete December 18, 2019
    • Wezaggle December 18, 2019

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