Kärcher - High Pressure Washer K 5 Power Control Flex

What separates the K 5 Power Control Flex from cheaper pressure washers isn't raw power — it's the integration between the machine and the Kärcher Home & Garden app, which acts as a genuine surface consultant rather than a gimmick. Point it at your decking, your render, or your car, and it tells you the correct pressure setting to avoid damage. That matters because most pressure washer mistakes — stripped pointing, etched paintwork, splintered wood — come from running full pressure on surfaces that can't handle it. The app removes that guesswork in a way a simple dial never quite does.

Who Is This For?

This washer suits homeowners with a variety of outdoor surfaces — patio slabs, garden furniture, rendered walls, vehicles — who want one machine that handles all of them without the anxiety of getting the settings wrong. The 145 bar maximum pressure and 500-litre-per-hour flow rate give it genuine grunt for stubborn algae and ground-in grime. If you only need to rinse down a single paved area once a month, a sub-£150 K 2 will do the job and save you a hundred pounds.

What Buyers Say

Owners of the K 5 Power Control range consistently praise the pressure gun's built-in LED indicator, which shows in real time whether you're at the right setting for the chosen surface — a feature that proves its worth within the first session. The most common complaint is the hose length; at 10 metres, it feels limiting on larger driveways and gardens, and the reel management on the Flex variant draws mixed opinions about durability over repeated use.

The Deal

At £259.99, down from £339.99, you're saving £80 — around 24% off. Because this product is newly tracked on our site, there's no price history to confirm whether £339.99 is a genuine regular price or an inflated reference point, so treat this deal with appropriate caution and check back as we build a clearer picture. If you're comparing pressure washers at this tier, our pressure washer deals guide is worth a look before you commit. Watch, don't rush.