Official UK guidance does not name one pressure washer as the best for driveways and patios, so the points below apply whichever model you choose. They cover electrical protection, the water connection and routine inspection.
Electrical protection when working outdoors
HSE suggests weighing up whether a residual current device (RCD) should sit between the power supply and the equipment, particularly for outdoor work or in wet and confined places.
HSE's guidance covers electrical equipment in general, including portable appliances.
Maintenance and inspection
HSE's maintenance guidance highlights portable electrical tools that are moved often, used frequently or prone to damage, such as in wet or dusty places.
HSE suggests asking whether electrical kit should be formally inspected or tested by a competent person, and how often that should happen.
Quick checklist before each outdoor session
- Check whether an RCD is in the supply path between the socket and the machine.
- Note whether the washer is moved often, used frequently or used in wet conditions, as these raise the need for checks.
- Ask a competent person whether the washer needs formal inspection or testing, and how often.
The water connection and backflow
GOV.UK says the Water Supply (Water Fittings) Regulations 1999 aim to prevent contamination of the public water supply, ensure efficient water use and protect against misuse and waste.
GOV.UK lists a Specification on the Prevention of Backflow among the specifications that apply from 6 May 2027.
Before you connect a washer to a mains tap, read the GOV.UK specifications page and ask the supplier how the machine deals with backflow. This is a practical suggestion rather than a stated legal requirement.
Buying or hiring
Confirm any charge directly with the company before booking.
