Pressure Washing in High Wycombe

Yes. Too much pressure or the wrong nozzle can etch concrete, blast mortar out of brick joints, splinter timber decking, strip paint, and force water behind siding or render. Roof tiles are especially vulnerable. Ask the pro what PSI and nozzle they plan to use per surface, and whether they soft wash delicate areas.

Light rain is usually fine — surfaces are already wet. Pros avoid freezing temperatures (ice risk on cleaned surfaces and damaged equipment) and heavy storms. In hot dry regions, local water restrictions can limit or ban high-volume outdoor cleaning during drought periods, so check the current rules before booking.

Move cars off the driveway, clear pots, furniture, and toys from the work area, close all windows and doors, and cover or flag anything fragile like garden lights. Point out hairline cracks, loose pointing, or flaking paint in advance — pros will work around known weak spots but cannot see them under grime.

Renting a machine costs a fraction of a pro visit, but consumer machines are slower, and the main risks are damage (etched concrete, stripped paint) and injury — a 3000+ PSI jet can cut skin. DIY makes sense for a small, flat concrete area. Hire a pro for two-storey walls, roofs, timber, render, or anything needing ladders or chemicals.

UK guides put driveway cleaning at roughly £8.50-£15.50 per m². A single-car drive (up to 20m²) can be £40-£100, a standard two-car drive £100-£250, and large drives £250-£500. Resealing after cleaning adds £100-£200 to a medium drive.

Yes, but the jointing sand gets blasted out along with the grime, so the job is only complete once the joints are re-sanded (kiln-dried sand) and ideally sealed. If a quote doesn't mention re-sanding, the paving will loosen and weeds will return faster.