Make routine cleaning jobs quick and effective with the Kärcher K4 Classic Pressure Washer — a compact, powerful pressure washer designed for everyday moderate‑duty cleaning tasks around the home and yard. Whether you’re tackling muddy patio slabs, decking, garden furniture, driveways, vehicles or bikes, this unit delivers dependable performance with user‑friendly features that trade pros and DIYers appreciate.
Built with Kärcher’s reputation for reliability and smart design, the K4 Classic combines portable convenience with versatile cleaning power — ideal for homeowners and small‑scale landscaping teams looking to keep surfaces clean without setting up heavy‑duty equipment.
Key Features
Adjustable Pressure Range: Clean with confidence — pressure is adjustable between 20–130 bar, so you get the right force for cleaning patios, walls, vehicles or garden tools.
Compact & Portable Design: Lightweight and easy to manoeuvre with a clever space‑saving footprint, making storage in vans or sheds simple.
Telescopic Handle & Easy Setup: Telescopic aluminium handle adjusts for comfortable transport and collapses for compact storage. Quick‑connect fittings speed up setup and breakdown
Integrated Hose & Accessory Storage: Neatly holds the 6 m high‑pressure hose and accessories on the unit to reduce clutter and keep everything ready to go.
Detergent Suction Capability: Connect detergent directly for deeper cleaning and better surface care.
We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.
Delivery Charges & Delivery Times
Delivery Type
Delivery Area
Delivery Charge
Delivery Time
Small Items
Republic of Ireland
€9.99
3–4 working days
Large & Heavy*
Standard delivery area
€29.99
5–7 working days
Extra Large*
Standard delivery area
€50.00
5–7 working days
Paint 5L or less**
Standard delivery area
€19.99
5–7 working days
Swipe sideways to compare delivery options.
Small Items
Delivery area
Republic of Ireland
Charge
€9.99
Delivery time
3–4 working days
Large & Heavy*
Delivery area
Standard delivery area
Charge
€29.99
Delivery time
5–7 working days
Extra Large*
Delivery area
Standard delivery area
Charge
€50.00
Delivery time
5–7 working days
Paint 5L or less**
Delivery area
Standard delivery area
Charge
€19.99
Delivery time
5–7 working days
*Standard delivery policy. Promotional delivery rates may apply during campaigns.
Additional Information
FREE delivery on eligible Small Items and Large & Heavy orders over €1,499, within the standard delivery area only.
Special Order and Catalogue Products require an additional 5 working days.
FREE collection of old appliances is available through WEEE Ireland when purchasing qualifying large appliances.
FREE Click & Collect is available for items in stock at your selected branch.
Large & Heavy and Extra Large items are available within our standard delivery area only.
Paint delivery Paint in tin cans 5L or less is available for delivery. Larger sizes and paint supplied in plastic buckets are available for Click & Collect only.
TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.
Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.
Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products.
Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.
