When's the best time to waterblast in Christchurch?

The short answer: late winter to spring

Christchurch's damp, shady winters are peak growing season for moss, algae and lichen. By August your paths and driveway are at their greenest and most slippery, so a waterblast in late winter or early spring clears a full winter's growth and sets you up clean for the year. Blast too early in autumn and you'll be halfway back to green by October.

When not to wait

Some jobs shouldn't sit in the calendar queue:

• Slippery paths and steps: a green path is a broken hip waiting to happen. Safety jobs are now jobs, whatever the season.
• Before selling: a blasted driveway and clean fences lift street appeal more per dollar than almost anything else you can do before photos.
• Before painting or staining: coatings need a clean, sound surface, so the wash comes first. That includes fences and decks.

Know what not to blast

High pressure is for hard surfaces: concrete, pavers, cobbles. Point a waterblaster at the wrong thing and you'll do real damage: roofs lose their protective surface (they want moss treatment instead), and painted cladding wants a gentle soft wash, not a stripping. Timber decks sit in between: low pressure, right technique.

How often is enough?

For most Christchurch properties, once a year keeps concrete clean and safe. Shaded, south-facing sections regrow faster and may want a mid-cycle moss treatment to stretch the time between blasts.

Ready to get the winter grime off? Waterblasting in Christchurch. Free quotes: call or text 027 787 3246.