Premium K5 Karcher Pressure Washer Review

If you’re looking for a pressure washer where there are no compromises, with power to spare, then the K5 Karcher Pressure Washer might just pique your interest.

It’s the second most powerful model in the Karcher Full Control range, and it offers excellent power with great cleaning delivery.

Like the other models in the series, it has a full set of accessories for domestic cleaning tasks, and it even has some advanced control technology built right into the lance handle.

If you need a unit that can deal with almost every conceivable cleaning job, then it’s time to take a closer look at the K5.

Karcher K5 Premium Features

  • 145 bar pressure with 500 litres per hour of water flow.
  • Includes an 8m high quality hose.
  • Integrated hose reel and on-board lance clip.
  • Pressure controls built into the lance handle.
  • Water cooled motor.
  • Plug-in detergent system.

Who Could Use the K5 Karcher Pressure Washer?

The K5 has been designed for the most demanding domestic users. 145 bar of pressure is a significant increase over the 110 – 130 bar that is found in most entry to mid-range units.

More pressure means better cleaning, and the high water flow rate means that cleaning is faster. If you need to clean your car, even if it’s an off road vehicle, then this would be an ideal pressure washer for you.

The unit will also clean outside surfaces, including patios and decking, and it can be used to clean fences, walls, garage exteriors, and house exteriors.

If you have any outdoor cleaning task, ranging from garden tools to outdoor furniture, then the K5 Karcher Pressure Washer has been designed for you.

Cleaning Performance

As a high end model, you would naturally expect the cleaning performance on the Karcher K5 to be nothing short of excellent. If you do decide to purchase one of these, then you’re not going to be disappointed, and your expectations may even be exceeded.

The high pressure and water flow both mean that not only can you tackle everyday cleaning tasks, but you’ll also be able to clean heavily soiled surfaces, even those that have been neglected for years.

Clearing debris out of brick or stonework will be easy with the 145 bar pressure, and light-duty tasks will be over in minutes. If you’re cleaning a city a car, you’ll be able to complete the job with fewer and faster passes of the lance.

Even if you own an off-road vehicle that you’ve taken out for some fun on the weekend, the Karcher K5 Premium will be perfect for getting out mud and any other debris that you’ve picked up along the way.

If you have used other pressure washers that have felt underpowered for your needs, particularly entry level models, then the K5 Karcher Pressure Washer will be a noticeable step up, that will likely satisfy all of your cleaning demands today, and in the long term.

Included Accessories

If you’re familiar with other Karcher pressure washers, then you will know that they come with all of the accessories that you’ll need to start cleaning various surfaces and items at home.

The K5 has a multijet lance that is an improvement over the individual lances that they provide on older and lower tier models. This attachment can be used for basic pressure washing, dirt blasting, or applying detergent to a surface before hosing it down.

This model also includes the T350 surface cleaner, which allows you to clean horizontal and vertical flat surfaces without excess water splash.

There’s a detergent plug-in system that is easy to use, and is a big improvement over the suction hose attachments on entry level models.

One of the best features on this premium model is the addition of the Full Control system. It allows for pressure to be adjusted with an electronic keypad, and there’s also an LCD display to show you the setting that is currently selected.

Best and Worst of the K5 Karcher Pressure Washer

This high end pressure washer doesn’t disappoint when it comes to features and performance. Some of the highlights are:

  • Easy control of power modes from the lance grip.
  • No need for multiple attachments, thanks to the 3-in-1 lance.
  • Excellent power and water flow makes heavy cleaning jobs easy with this pressure washer.
  • Water cooled motor allows long operating cycles.
  • 3-year warranty provides peace of mind.
  • Included patio and flat surface cleaner head.

There’s nothing particularly disappointing about this pressure washer, and besides bumping the power, there’s little room for improvement. While you may see the high price as a downside, the fact that it comes with an extensive warranty and is incredibly well made, means that the investment will continue to pay off for years to come.

Final Thoughts

This is a pressure washer for people who have extensive cleaning tasks, with some of them being particularly grimy or heavy-duty. It’s not an entry level unit and isn’t the best option if you only plan to clean your car and driveway every other weekend.

However, if you do need the power that comes from high pressure and increased water flow, then you’ll find a lot to love about the K5 Karcher Pressure Washer, and the extra touches like the full control lance make this a compelling choice in the high end market.

Karcher K4 Premium Ecologic Pressure Washer

Designed to be the next step up from the company’s highly popular entry level products, the Karcher K4 Premium Ecologic Pressure washer offers mid-range power, good water flow, and some great features that allow it to be used almost anywhere that there is a mains or standing water source.

With a range of included accessories to accomplish most domestic cleaning tasks, this is a serious contender for your next pressure washer purchase.

If you’ve had even just some passing interest in this model, a comprehensive review will allow you to weigh up the pros and cons, and find out if it’s right for you.

Key Features of the Karcher K4 Premium Ecologic Pressure Washer

  • Lightweight and designed for portability.
  • 130 bar pressure with 420 l/h water flow rate.
  • Water cooled motor for extended operating time.
  • Detergent system for better pressure washing.
  • Good accessories package for different jobs.

Who Is the Karcher K4 Ecologic Intended For?

This is a mid-range pressure washer aimed at home users who need a pressure washer that performs better than the low pressure entry level models.

With 130 bar of pressure, it’s able to perform better on stubborn cleaning jobs, and the relatively high water flow rate means that it can clean larger areas in shorter times.

The Karcher K4 Ecologic can cover a surface area of 15m2 in 30 minutes, which is 150% more than the company’s entry level model.

Outdoor surfaces, home exteriors, fences, decking, vehicles, and garden furniture are all prime candidates for pressure washing with the Karcher K4 Ecologic.

Cleaning Performance

Whether this will be your first pressure washer, or you’re upgrading from another model, you’ll find the performance to be extremely satisfying, and good for light to mid-duty workloads.

Aside from the pressure and water flow advantages, the other key element in the K4 is the water cooled motor. Air cooled motors are usually found on inexpensive pressure washers, and they can limit continuous operating time and overall product life.

With a water cooled motor like the one used in the K4, it’s possible to clean continuously, essentially for as long as you need to get the job done.

You’ll be able to work faster with the Karcher K4 Premium Ecologic Pressure Washer, because the relatively high pressure and flow rate will be able to make short work of domestic tasks.

Whether you’re cleaning outdoor paving stones, your car, or even your outdoor furniture, excellent results can be had in just minutes on most surfaces.

Accessories Included in the Box

The accessories are central to the cleaning power and efficiency of the Karcher K4 Ecologic. For standard cleaning on vehicles or uneven surfaces, the Dirtblaster lance attachment uses a rotating nozzle that improves performance over the standard attachment.

You could still use the standard attachment for general cleaning, and it has a quick adjusting nozzle for changing the pressure as you clean. If you want to clean flat surfaces without splash and spray back, you could use the T350 patio cleaner attachment. This specialized attachment can be used on ground surfaces, as well as outside walls, fences, and large doors.

Karcher has done a good job of including three attachments that cover all of the basic cleaning needs of the domestic user, and you’ll appreciate not having to purchase additional accessories to cover all of your needs.

The K4 also has a special plug-in detergent container, so you won’t need to use a separate container and suction hose like you would on an entry-level model.

Best and Worst of the Karcher K4 Premium Ecologic Pressure Washer

There are many good things to say about the K4, with the most prominent being:

  • The pressure and flow rate are ideal for all domestic cleaning tasks, and you won’t find yourself wishing you had more power.
  • Continuous use time is increased, thanks to the water cooled motor.
  • There’s a special ecologic switch that will conserve water and power consumption.
  • Hoses and attachments use quick connectors.
  • Everything you need to get started is included in the package.

However, there’s still room for improvement on future models:

  • Some assembly is required for attachments and the main unit (covered in the operator’s manual).
  • Well made, but uses many plastic parts, which could limit durability.
  • Unit is not well balanced, so pulling the hose reel can cause the unit to topple over when it is seated upright.

Final Thoughts

Even with some minor downsides, there’s a lot to like about the Karcher K4 Premium Ecologic Pressure Washer. It provides more power than the average pressure washer, which will help you to clean faster with better results.

It has some great accessories, and the T350 attachment is perfect for outdoor surface cleaning. While a significant step up in price from a basic pressure washer, the K4 will provide many years of excellent cleaning, and if you have a larger property, you’ll find that this unit is well worth the initial investment.

Karcher K2 Compact Home Pressure Washer Review

If you’re looking for an entry level pressure washer that still delivers when it comes to design and build quality, then the Karcher K2 compact home pressure washer is a compelling option. Designed for light domestic cleaning, this would be a great addition to your powered home appliances.

If you’ve been considering this model but still aren’t quite sure about the features and how well it is able to perform in cleaning tasks, then this review will be a great starting point for choosing your first pressure washer.

Karcher K2 Feature Overview

  • Upright, electric powered pressure washer.
  • Includes lance attachments and basic accessories.
  • Mix detergent into your pressure stream for effortless cleaning.
  • 110 Bar pressure rating with 360 litres per hour water flow.
  • Air cooled electric motor.

Intended Use

If you need a light weight portable pressure washer for domestic cleaning, then this is a great light-duty solution. The Karcher K2 is suitable for cleaning vehicles, lightly soiled tiles and outdoor surfaces, tools, and outdoor furniture.

110 bar of pressure is at the lower end when compared to other units, but it’s still sufficient for cleaning your car on the weekends, hosing down a boat, or even removing grime from your home siding, bricks, or cladding.


Any time that you are looking for a pressure washer, performance will be the main decider. 110 bar is suitable for all of the intended applications, and the only area where this unit is really lacking is in water flow.

360 l/h is slightly below the average flow rate for this price range, which means that cleaning jobs could take longer than with some competing washers with a similar pressure rating.

However, one benefit of having lower water flow is that this unit conserves more water per wash, and because it’s designed for light-duty tasks, this should not be considered as a negative point.

Cleaning concrete and other outside surfaces can usually be achieved with a single pass over each section, but this will depend on how much embedded dirt and grime there is. If you’re using this for regular maintenance, then you will find that it performs above your expectations.

Included Accessories

Sometimes accessories can make or break a product, especially in the case of an electric pressure washer, where the extras will determine how easily you can get your cleaning jobs done.

Thankfully, the Karcher K2 compact home pressure washer has three excellent cleaning attachments that make it perfect for all of the jobs that it is intended for.

The standard lance is used for variable pressure washing on a range of surfaces, whereas the Dirtblaster attachment should be used for cleaning tiles, paving stones, and other weathered surface that are heavily soiled.

There’s also a splash-free patio cleaner that can be used for gently cleaning outdoor surfaces, and it’s the one that you would use for regular upkeep on your outdoor surfaces.

The unit has a built in storage system for the accessories, and there’s also a vacuum tube for adding detergent into the water flow.

Best and Worst of the Karcher K2 Compact Home Pressure Washer

The pros of this unit can easily be summed up:

  • Great design and assembly.
  • At less than 6kg, it’s incredibly lightweight and portable.
  • Great entry-level price point.
  • Easy to understand and use, even for first time users.

Although not the perfect machine, there’s still very little to complain about.

  • Air cooled motor means continuous use should be limited to 30 minute sessions with short breaks between.
  • Low pressure and water flow rates limit this model to light-duty cleaning.

Final Thoughts

A home pressure washer only needs to get a few things right, and in the case of the Karcher K2 compact home pressure washer, it can satisfy all of the requirements of the average domestic user.

It’s not the most powerful pressure washer on the market, so heavily soiled surfaces could mean longer and inefficient cleaning times, but considering its low price point and high build quality, it can easily be considered one of the best pressure washers in its class.