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7 Best Karcher Pressure Washers – Australian Buying Guide

Kärcher pressure washers are unrivalled for patio cleaning, car washing, and pretty much anything else you might ever need to wash effectively.

So, rather than pulling together a huge and confusing list of pressure washers on the market, we thought we’d take a look at the best Kärcher pressure washers you can buy today.

We’ve got handy hints and tips for how to use pressure washers most effectively, and what to look for when you’re picking one out for domestic or commercial use.

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Our Rating

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1. Kärcher G 3000 High Pressure Washer - 3000PSI

Kärcher G 3000 High Pressure Washer
Top Rated Best Kärcher Pressure Washer in Australia

2. Kärcher G4000 OH Petrol High Pressure Washer - 4000PSI

Kärcher G4000 OH Petrol Engine High Pressure Washer
Premium Choice Kärcher Pressure Washer in Australia

3. Kärcher K3 Electric Pressure Washer - 1950PSI

Kärcher K3 Electric Pressure Washer
Best Value Kärcher Pressure Washer in Australia

4. Kärcher G 3600 OHT Petrol Pressure Washer - 3600PSI

Kärcher G 3600 OHT Petrol Pressure Washer

5. Kärcher K7 Compact High Pressure Washer - 2600PSI

Kärcher K7 Compact High Pressure Washer

6. Kärcher K5 High Pressure Washer - 2300PSI

Kärcher K5 High Pressure Washer

7. Kärcher K2 Electric Pressure Washer - 1600PSI

Kärcher K2 Electric Pressure Washer

Kärcher Pressure Washers Buyer’s Guide

Getting to Know Kärcher Pressure Washers

Best Karcher Pressure Washer Australia

Kärcher produce a huge range of cleaning tools, from vacuums, carpet cleaner and window cleaners to floor mops and polishers, but their key product has always been their powerful range of pressure washers.

Kärcher pressure washers are designed to take worked-in dirt out of the toughest of surfaces and bring some sparkle back to your home. If you’re thinking that you can get the same results from a stiff brush, think again.

When we first bought our house (a run-down collection of bricks and broken garden walls) the patio, the walls, the render, and pretty much everything else was covered in worked-in mud, oil spills, and strained from rusty outlets.

After a lot of experimentation, the only tool that got our home looking even close to ready was a petrol-powered Kärcher pressure washer.

Once we’d finished renovations we broke the pressure washer back out, and blasted away the render, mortar spills and builders’ dust too, leaving us with a pristine patio that turned out to be some pretty nice sandstone hidden under years of neglect.

Buying a Kärcher Pressure Washer

Buying a Kärcher pressure washer is pretty straightforward, with a logical pricing system based on power, durability and pressure. Essentially, you get what you pay for. However, for most domestic applications the smaller models can be more than enough for routine maintenance, or occasionally cleaning the car.

Buying a Kärcher Pressure Washer

Let’s take a quick run through what to look for in a new Kärcher pressure washer; from power and PSI to overall performance.

Power

Kärcher uses the same Petrol engine for most of their gas-powered units (196cc 4-stroke Honda GX) but a few have Kärcher’s own duplicate engine (also 196cc 4-stroke).

Their petrol engines are significantly more powerful than their electric models, but the main-powered engines are still capable of around 2600 PSI in the higher price range.

PSI

PSI is the most important measure of a pressure washer’s ability, but it should be coupled with power. Lower-powered models can pump water through at a similar pressure to high-powered Kärcher pressure washers but they pump less water and rely largely on the system pressure in your mains.

For serious commercial work 3000PSI or above is needed. For domestic Kärcher pressure washers though, look for something around the 2000-2500 PSI mark which can beat down almost any of the worst garden grime.

Kärcher pressure washer attachments

Kärcher pressure washers come with a wide range of attachments. The high-powered petrol models are usually straightforward, with one high-powered nozzle, which (thanks to the high PSI) can remove almost anything.

The smaller electric models have some good tricks up their sleeve though, with purpose-built dirt-blasters, rotary nozzles and jet nozzles that help to target dirt in different directions.

Model ranges

Domestic models are sold under K1, K2, K3, K4, K5, K6, or K7 model ranges. The lower the number, the lower the pressure. When you get out of the domestic pressure washer price range, the petrol-powered models are individually manufactured, and there are some pretty big jumps between prices.

How to Use a Kärcher Pressure Washer

The first time I used a pressure washer, I got a little bit carried away and just went for it, but despite the fun you can have with them, they work best when used slowly, and methodically. Even if you’re just trying to blast off small spots, it’s best to work around the entire area. 

How to Use a Kärcher Pressure Washer

Using Kärcher pressure washers on small spot cleaning jobs tends to leave spots of sparklingly clean floor, and highlight the dirt elsewhere, so be prepared to do more than you intended to.

Start by getting everything set up:

  1. Connect the hose outlet to the pressure washer.
  2. Clear your workspace.
  3. Power on the machine (make sure any wires are neatly wound so you can pull without tugging at the plug).
  4. Choose the appropriate attachment (thin jets are the most universal).

Then you’re ready to go. We would always recommend starting lower down, particularly if your patio tends to pool.

Kärcher pressure washers pump a vast amount of water through in a short space of time, so start where the water will pool, then work away, to avoid ending up spraying into a puddle.

Work in methodical strips, particularly on hard dirt, where clear lines will show. If you are removing lichen from pacing, work over patches a few times until the fizzing stops.

Lichen spores as it's sprayed and spores remain until the fizzing completely stops (consider treating the entire patio with a lichen or moss killer later).

Kärcher Pressure Washers Safety Guide

Kärcher pressure washers are generally safe to use, but the really high-powered models (3000PSI or more) can do real damage and even cut through skin so wear long sleeves and thick trousers when working with pressurised water.

Best Kärcher Pressure Washer Reviews

1. Kärcher G 3000 High Pressure Washer - 3000PSI

Kärcher G 3000 High Pressure Washer - 3000PSI

Source: toolswarehouse.com.au

I really, really like this compact pressure washer from Kärcher, with 3000psi making it the only practical choice for domestic gardeners who need something more powerful than standard electric models but don’t want to give up masses of garage space for the luxury.

As well as a high, 3000psi, spray, it comes with sturdy tires, durable fittings, and a reliable engine designed and manufactured by Kärcher themselves.

Pros

  • Very high pressure (3600psi)
  • Good value
  • Compact
  • 196cc petrol engine
  • Perfect for working onsite
  • Really well built

Cons

  • Loud

2. Kärcher G4000 OH Petrol Engine High Pressure Washer - 4000PSI

Kärcher G4000 OH Petrol Engine High Pressure Washer - 4000PSI

Source: toolswarehouse.com.au

One obvious selling point of petrol pressure washers is that they can work remotely without the need to access mains power, but they are also significantly more powerful and tend to come with longer hoses too.

There’s no such thing as a quiet petrol pressure washer though, they are noisy, and should always be used with the hose outstretched so you are working at a distance from the machine itself.

This 4000PSI pressure washer is perfect for any professional application and can remove anything from chewing gum, to set mortar.

Pros

  • Extremely high pressure (4000 PSI)
  • 196cc petrol engine
  • Remote working
  • Exceptionally solid fittings

Cons

  • Expensive
  • Loud

3. Kärcher K3 Electric Pressure Washer - 1950PSI 

Kärcher K3 Electric Pressure Washer - 1950PSI

Source: toolswarehouse.com.au

At the budget end of the Kärcher range is the K2, which is much cheaper than most of the range, but not significantly weaker, still packing 1950psi, which is easily enough to clean cars and fences to remove mildew and general grime and grease.

If you want a decent pressure washer on a  budget, look for this end of the range where you really can’t go wrong for home use.

Pros

  • Great value
  • Compact
  • Comes with two interchangeable nozzles
  • Easy to use
  • Adjustable pressure

Cons

  • Short hose (8m)

4. Kärcher G 3600 OHT Petrol Pressure Washer - 3600PSI

Kärcher G 3600 OHT Petrol Pressure Washer - 3600PSI

Source: toolswarehouse.com.au

The powerful engine and 3600psi jet on this Kärcher pressure washer make it one of the best value commercial grade pressure washers on the market. It’s not as powerful as some, but you can save a lot of cash if you’re not planning on industrial-scale pressure.

The G4000 is also slightly more compact than some petrol models, making it easy to store for general contractors who are using it as part of their kit, rather than their main tool.

Pros

  • Very high pressure (3600psi)
  • Good value
  • 196cc petrol engine
  • Good for working outdoors, away from mains power
  • Durable tires
  • Well built

Cons

  • Loud

5. Kärcher K7 Compact High Pressure Washer - 2600PSI 

Kärcher K7 Compact High Pressure Washer - 2600PSI

Source: toolswarehouse.com.au

When we jump down into the electric pressure washers there’s so much more choice, but also more limited power. Electric pressure washers have never had the same capabilities as petrol models, but they are easy to use, friendlier for the environment, and beautifully compact.

The Kärcher K7 is one of the smallest and neatest pressure washers on the market and packs a real punch at 2600psi. For car cleaning, window cleaning, and most patio jobs, the Kärcher K7 is perfect, and really, really good value too.

Pros

  • Great psi for electric (2600 psi)
  • Easy to set up
  • Easy to use
  • Well built
  • Works with detergents

Cons

  • Expensive compared to similar psi models

6. Kärcher K5 High Pressure Washer - 2300PSI 

Kärcher K5 High Pressure Washer - 2300PSI

Source: toolswarehouse.com.au

The Kärcher K5 is exactly what you expect from a Kärcher pressure washer. Its body is cleverly designed to hold most of its attachments, and it’s really easy to add in shampoos and detergents which automatically mix into the water stream.

The big difference between petrol pressure washers and electric Kärcher pressure washers is the kit you can get with each model.

Electric pressure washers come with all sorts of gadgets to boost their power and help to target water flow. The Kärcher K5 includes a clever Dirt Blaster tool which directs water and recirculates the pressure on patios.

Pros

  • Compact
  • Great value
  • 10m hose
  • Comes with useful attachments, and detergent

Cons

  • N/A

7. Kärcher K2 Electric Pressure Washer - 1600PSI 

Kärcher K2 Electric Pressure Washer - 1600PSI

Source: toolswarehouse.com.au

1600psi might be the lowest pressure that Kärcher makes, but it’s still a good bit of kit for most homeowners. To put it into context, the petrol models are definitely necessary for the first attack on serious dirt, but for ongoing maintenance, or regular car, fence, or window cleaning, Kärcher K1 is a really good range.

The low pressure does mean it doesn’t work with some standard attachments, but there is a good range of specially adapted nozzles and brushes that come with the Kärcher K1 so you can tackle most jobs efficiently.

Pros

  • Really good value
  • Loads of free attachments

Cons

  • Low pressure (1600 psi) compared with most Kärcher pressure washers

Kärcher Pressure Washers Top Picks

Our Top Pick Kärcher Pressure Washer

Top Rated Best Kärcher Pressure Washer in Australia
Kärcher G 3000 High Pressure Washer - 3000PSI

Source: toolswarehouse.com.au

For domestic use, or infrequent commercial use, the Kärcher 9.506-954.0 is the best pressure washer on the market for anyone looking for a mix of performance and budget.

It’s not the most powerful but it has enough pressure to get patios sparkling, and its adjustable pressure means you can still use it safely on fences and cars without worrying about the paintwork.

Premium Choice Kärcher Pressure Washer

Premium Choice Kärcher Pressure Washer in Australia
Kärcher G4000 OH Petrol Engine High Pressure Washer - 4000PSI

Source: toolswarehouse.com.au

If you’re starting your own renovation, or use a pressure washer professionally, you just have to go for the higher-end model, which is the only pressure washer on the market that is reliably capable of blasting through anything from mortar splashes to chewing gum without breaking a sweat.

The fittings on every part of this Kärcher pressure washer are built and fitted to perfection, and the Honda engine packs a punch, as well as being easy to maintain, making this, by a long way, the best Kärcher pressure washer you can buy.

Best Value Kärcher Pressure Washer

Best Value Kärcher Pressure Washer in Australia
Kärcher K3 Electric Pressure Washer - 1950PSI

Source: toolswarehouse.com.au

If you’re looking for a similar pressure washer to use at home you don’t need to break the bank to afford this neat little Kärcher pressure washer which is really affordable, super compact, and still powerful enough to clean most surfaces.

1950 psi is enough power to beat through dirt in textures, stone or concrete and brighten up brickwork, but these models are primarily designed for cleaning cars, washing out gutterings and dusting down grimy windows.

Kärcher Pressure Washer FAQs

What Kärcher pressure washer is best for cleaning cars?

The Kärcher K2 or K3 range are perfect for cleaning cars or windows. They are relatively low pressure compared to the rest of the Kärcher pressure washer range so won’t cause damage to paintwork, while being powerful enough to remove bird mess and tough mud around the tyres.

Is a Kärcher K2 powerful enough for a patio?

The Kärcher K2 is a great entry-level domestic pressure washer, perfect for cars, windows, and regular patio maintenance, but it’s not powerful to beat really tough dirt and get worn-out patios looking like new.

The higher pressure of Kärcher K3 or K4 upwards will get through dirt faster, and save you water in the process.

What is the best Kärcher pressure washer for fencing?

If you’re looking to maintain a timber-clad building, timber fencing or any treated timber, go for a Kärcher pressure washer with a lower PSI like the K1 or K2 range.

More expensive models tend to take stains or paint off timber and cause flaking. For general maintenance, lower power models are sufficient for fencing.

Looking for more pressure washer options? If you want to look into other brands then check out our mixed reviews of the best pressurer washers available in Australia

Wrapping Up Our Kärcher Pressure Washers Buying Guide

Kärcher pressure washers are truly brilliant machines, but you do need to let go of your intuition and follow really careful methods to get the best out of them. Take things slowly, and you’ll have perfect results every time.

Anyway, it’s been a while since I’ve spruced up our patio, so I’m going to sign off now and clean up our pavers. Hopefully, you’ll be doing the same soon now you know how to find the best Kärcher pressure washer to suit your needs.

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Author:

Gary Clarke

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