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Soft washing or waterblasting: which does your house need?

Soft wash the house, waterblast the concrete. Soft washing uses low pressure and a cleaning solution to lift mould, grime and salt from cladding, paintwork and windows without damage. Waterblasting uses high pressure, which is right for driveways, paths and other hard surfaces but can strip paint and force water behind cladding.

Coromandel Window Cleaning, Tairua. Updated 3 November 2026.

Cladding halfway through a soft wash, clean on one side and grimy on the other

What is soft washing?

A soft wash applies a cleaning solution at low pressure, lets it break down the mould, algae and grime, then rinses it off gently. The solution does the work, not the pressure. We use environmentally friendly products. See house washing and soft washing.

What is waterblasting?

Waterblasting uses high-pressure water to strip dirt off a surface. On concrete, a surface cleaner attachment spreads the pressure evenly and keeps the spray contained, which gives instant results with far less mess. See driveway and concrete cleaning.

Soft washing the exterior of a modern home
Soft washing a house
Concrete pad partway through waterblasting
Waterblasting concrete

Why not waterblast the house?

High pressure can strip paint, gouge soft timber, damage window seals and drive water behind weatherboards and cladding, where it can cause bigger problems later. It also blasts the dirt around rather than killing the mould, so the growth comes back sooner.

Which surfaces suit which method?

Soft wash

  • Weatherboards and cladding
  • Painted surfaces and trims
  • Windows, frames and joinery
  • Pergolas and outdoor timber
  • Roofs, with a post-clean treatment

Waterblast

  • Concrete driveways and paths
  • Courtyards and patios
  • Concrete pads and garage aprons
  • Shop entrances

What about decks?

Decks sit in between. They get a soft chemical clean with pre and post-clean treatments rather than a blast, which can rough up the timber. More in should you oil or seal your deck?

Can you do both on the same visit?

Yes. A typical visit might be a soft wash of the house, the windows with pure water (standard on every house wash) and the driveway waterblasted, so the whole outside is done at once.

★★★★★

“They did a fantastic job washing the house, and windows, and waterblasting the driveway and courtyard and a treatment on the roof.”

Belinda R., Google review

Get the whole outside sorted

We cover Thames to Matarangi and everywhere in between, from our base in Tairua. Call or text Jono, or send us the details for a quote.

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