About Pressure Washers for DIY
Best DIY picks: Kärcher K4 Power Control, Nilfisk Core 125-5, Bosch UniversalAquatak 135. Expect £150–£250 and 5–8 years of weekend service.
Add a surface-cleaner attachment for patios and a fence/wood mode (Karcher Power Control) for paint-prep work.
Don't overbuy — a K7 is overkill for occasional DIY. Save the money for a quality surface cleaner and a few decent accessories.