connectCost guide

What does water blasting cost?

NZ, incl. GST · updated 1 November 2026

Typical driveway, deck or house exterior

$450

Most jobs land between $250 and $900.

BallparkNZ 2026 ballpark. Real Connect quotes take over once there are enough.

An estimate for planning, not a quote.

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Water Blasting

Water blasting

Estimated installed price

$360

Most jobs like this land between $240 and $550, incl. GST, supply and labour.

$4–$9 per m²

Concrete driveway or path, 60 m²$4–$9 per m²$240–$540
NZ 2026 ballparkAn estimate for planning, not a quote.

Includes: A hard blast with a surface cleaner and a moss and mould treatment.

Not included: Repairs, oiling or staining, and removing paint or oil stains.

People use Connect for driveways, decks, roofs, fences and house exteriors before painting or selling.

What drives the price

Area, how dirty it is, and whether it is a soft wash or a hard blast. Roofs and two-storey houses cost more for access.

Example jobs

Single driveway$250–$400
Deck and paths$300–$550
Full house exterior before painting$600–$1,200

Example totals are typical NZ ranges incl. GST.

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Got quotes already? Read how to compare tradie quotes before you pick one.

Questions

How much does water blasting cost in NZ?

A typical driveway, deck or house exterior is around $450 incl. GST, with most jobs between $250 and $900. Area, how dirty it is, and whether it is a soft wash or a hard blast. Roofs and two-storey houses cost more for access.

Is this a quote?

No. It is an estimate based on NZ ballparks to help you plan. Post the job on Connect and vetted local tradies will quote your actual job, free.

Why do quotes for the same job vary so much?

Because tradies often quote slightly different jobs. Connect writes one scope with you first so every quote is for the same work and you can compare them properly.

Prices on this page are estimates incl. GST for a typical residential job in NZ and will vary by site, access, materials and season. They are not a quote.

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