Pressure Washing Cost in Australia 2026 — Driveways, Roofs, Decks

A professional pressure wash can transform a grimy driveway, a moss-covered roof, or a weathered deck in a few hours. But the price difference between a $180 driveway clean and a $1,800 roof restoration is significant — and knowing what drives that difference saves you money.

In Australia, pressure washing costs $2–$12 per square metre depending on the surface, contamination level, access difficulty, and whether hot water or soft washing is required. Ground-level jobs typically land between $180 and $600; roof cleaning adds a safety and access premium on top.

This guide breaks down real 2026 Australian prices by surface — with context on cold vs hot water, soft wash vs high-pressure, DIY hire, and when sealing is worth the extra spend.

Last updated: May 2026

Key takeaways

• Driveway pressure washing costs $3–$8/m² — a typical 60m² driveway runs $180–$480
• Roof cleaning costs $5–$12/m² — expect a 20–40% safety premium on top for pitch and height
• Timber decks and rendered walls require soft washing — high-pressure can cause lasting damage
• Hot water washing adds $50–$150 per job and is only needed for grease, oil, or heavy organic staining
• Sealing a driveway after pressure washing adds $8–$18/m² but significantly extends the clean
• DIY hire runs $60–$150/day — viable for driveways, not suitable for roofs without safety harness and insurance
• Get an instant price indication using Leadkit's pressure washing quote calculator

Table of contents

1. Pressure washing cost by surface — 2026 price table
2. Cold water vs hot water washing — when each is needed
3. Soft washing vs high-pressure cleaning
4. Roof cleaning — safety premium and what's involved
5. Sealing after pressure washing — is it worth it?
6. DIY hire vs professional — when each makes sense
7. FAQs

Pressure washing cost by surface — 2026 price table

The table below shows typical Australian pressure washing costs for 2026 by surface type. These are price indications — your operator will confirm the final price after assessing the job.

Additional cost factors:

This is a price indication only. Your operator will confirm the final price after assessing the job.

Methodology: Cost ranges are based on estimates generated through Leadkit's pressure washing calculator using current Australian market rates from active cleaning service providers. Leadkit operates the calculator and discloses this data as an indication, not a binding quote.

Use Leadkit's pressure washing quote calculator to get an instant price indication for your surface and area — no sign-up required.

Cold water vs hot water washing — when each is needed

Most residential pressure washing in Australia is done with cold water. A standard cold water unit operating at 2,000–3,500 PSI (140–240 bar) with a flow rate of 10–15 litres per minute (GPM equivalent) is sufficient for:

• Concrete and paver driveways with dirt, algae, or general weathering
• Timber and composite decks with surface grime and mould
• House exterior walls (brick, render, weatherboard) with cobwebs, dust, and biological growth
• Paths, pathways, and pool surrounds

When hot water is needed. Hot water units operate at 60°C–95°C and are the right tool for oil and grease stains on driveways or workshop floors, heavy organic staining, chewing gum on paths, and sanitising porous surfaces with bacterial contamination.

Expect to pay $50–$150 more per job for hot water due to higher equipment and fuel costs. For a standard residential driveway without grease staining, cold water is equally effective.

If your driveway has a visible oil patch, request hot water specifically — cold pressure alone shifts surface contamination but won't break down the hydrocarbons the way heat does.

Soft washing vs high-pressure cleaning

Not every surface should be hit with maximum PSI. Two surfaces in particular require a different approach: roofs and rendered or painted walls.

Soft washing uses low pressure (100–500 PSI / 7–35 bar) combined with a chemical pre-treatment — typically sodium hypochlorite or biodegradable detergent — to kill and lift biological growth without mechanical force. The surface is rinsed at low pressure after the dwell time.

Soft washing is the correct method for:

• Concrete and terracotta roof tiles — high pressure lifts the protective coating on concrete tiles and can crack terracotta. A turbo nozzle at the wrong distance will cause more damage than a decade of weather.
• Rendered and painted exterior walls — high pressure can strip paint, crack render, and force water behind cladding.
• Timber weatherboards — grain can be raised, paint lifted, and softwood fibres damaged by direct high-pressure contact.

The chemical pre-treatment targets moss, lichen, mould, and algae at the root — results last longer than mechanical removal alone. Efflorescence (white salt deposits on brick and concrete) needs a specialist acid wash at low pressure. Always confirm with your operator which method they're using for each surface before work starts.

Roof cleaning — safety premium and what's involved

Roof cleaning is the most complex and highest-risk residential pressure washing job. Expect to pay $5–$12/m² — plus a 20–40% safety and access premium for pitch, height, and the requirement for compliant fall-arrest equipment.

For a standard single-storey home with a 150m² roof, total costs typically land between $750 and $1,800 depending on contamination level, tile type, and whether a chemical pre-treatment is included.

What's typically included in a professional roof clean:

• Moss, lichen, and algae treatment with chemical pre-treatment (dwell time 15–30 minutes)
• Low-pressure soft washing to remove biological growth
• Ridge cap inspection and report on any cracked or loose pointing
• Gutters blown or flushed clear of debris (often included or a small add-on)
• Waste water management — some councils require containment of runoff

Safety requirements. Under Safe Work Australia guidelines, any roof work at height requires a compliant fall-arrest system — typically a safety harness, anchor points, and a spotter or safety observer on the ground. Unlicensed operators who quote significantly below market and skip safety equipment are taking on personal risk — and leaving you exposed to liability if an incident occurs on your property.

Before hiring, confirm:

• Public liability insurance (minimum $10 million)
• Workers' compensation insurance
• Compliant fall-arrest equipment for roof pitch and height
• Experience specifically with your tile type (concrete vs terracotta behave differently)

Do not attempt DIY roof pressure washing. The combination of a wet, mossy roof surface, a high-pressure hose creating reactive force, and no fall-arrest system is among the most common causes of serious falls in home maintenance. Even a single-storey fall from a wet roof can be fatal.

You can check gutter clearing costs alongside your roof clean using Leadkit's gutter cleaning quote calculator — many operators will bundle both services at a reduced total.

Sealing after pressure washing — is it worth it?

Pressure washing strips surface contaminants but leaves a porous, clean substrate that's immediately open to re-staining from oils, leaf tannins, bird droppings, and biological regrowth. Applying a penetrating sealer after pressure washing creates a protective layer that makes future cleaning easier and extends the time between washes.

A penetrating sealer costs $8–$14/m², while topcoat and wet-look paver sealers run $12–$18/m². For a 60m² driveway, sealing adds $480–$1,080 on top of the pressure wash.

Sealing is recommended when: the surface is porous exposed aggregate or pavers prone to oil absorption, there are fine paver joints susceptible to weed growth, or the driveway is adjacent to a carport where motor oil drips are likely.

Sealing is less worthwhile when: the concrete is old and in poor structural condition, or you plan to resurface within 2–3 years. For cracked or sunken driveways, compare against a full resurface using Leadkit's driveway resurfacing cost calculator.

DIY hire vs professional — when each makes sense

Pressure washer hire is widely available across Australia through Bunnings, Kennards Hire, and local equipment hire companies, typically running $60–$150/day for a consumer or mid-range commercial unit.

DIY hire makes sense for: small flat driveways or paths under 40m² with light soiling, timber deck maintenance with a low-pressure setting, and ground-level brick or concrete paths where you know your nozzle selection.

Professional is worth the spend for: any roof surface (safety is non-negotiable), rendered or painted exterior walls, heavily contaminated surfaces needing chemical pre-treatment and waste water containment, and any job where you are unsure of the correct PSI/bar setting — incorrect pressure on pavers dislodges jointing sand and can void manufacturer warranties.

The hidden cost of DIY is equipment selection. A consumer unit at 1,400–1,800 PSI handles light work but won't shift embedded efflorescence or heavy biological growth that a commercial 3,000 PSI unit clears in a single pass. Hiring the right commercial machine at $120–$150/day puts you at cost parity with a small professional job — and you still need to supply your time, safely.

FAQs

Q: How much does it cost to pressure wash a driveway in Australia?

A: Driveway pressure washing in Australia costs $3–$8 per square metre in 2026. A typical single-car concrete driveway of around 30–40m² runs $90–$320; a double driveway at 60m² typically costs $180–$480. Heavy oil staining, coloured concrete, or paver jointing may push the cost toward the top of the range or attract a hot water surcharge of $50–$100. Use Leadkit's pressure washing quote calculator to get a price indication for your specific area.

Q: How much does roof cleaning cost in Australia?

A: Roof cleaning costs $5–$12 per square metre in Australia, with an additional safety premium of 20–40% for pitch and height. A typical 150m² single-storey roof runs $750–$1,800 all in. Costs vary by tile type (concrete tiles are more durable under cleaning; terracotta requires soft washing), contamination level (heavy moss and lichen increases pre-treatment and dwell time), and whether ridge cap inspection or gutter clearing is bundled. Always confirm that your operator uses a compliant fall-arrest system and carries public liability and workers' compensation insurance.

Q: What is soft washing and when do I need it?

A: Soft washing uses low pressure (100–500 PSI / 7–35 bar) combined with a chemical pre-treatment to kill and lift biological growth — moss, mould, lichen, and algae — without the mechanical force of high-pressure cleaning. It is the correct method for roof tiles, rendered walls, painted surfaces, and timber weatherboards where high pressure would cause surface damage. The chemical treatment means results typically last longer than high-pressure mechanical removal alone. Ask your operator specifically whether they use soft wash or high pressure for your roof or rendered walls before confirming the booking.

Q: Should I seal my driveway after pressure washing?

A: Sealing is recommended if your driveway is porous concrete or pavers that are prone to oil staining, weed growth in joints, or re-staining from leaves and organics. A penetrating sealer costs $8–$14/m² and creates a protective barrier that makes future cleaning easier and extends the interval between washes. It is less worthwhile on old concrete in poor condition, or if you plan to resurface within 2–3 years. A well-sealed exposed aggregate or paver driveway after a thorough pressure wash can look close to new — and the seal protects that result from the first oil drip.

Q: Can I rent a pressure washer and do it myself?

A: Yes — hire is available from Bunnings, Kennards Hire, and local equipment hire companies at $60–$150/day. DIY is viable for small, flat, ground-level driveways and paths with light soiling. It is not appropriate for roofs (safety harness and fall-arrest equipment required under Safe Work Australia guidelines), rendered or painted walls, or heavily contaminated surfaces requiring specialist equipment. If you hire, match the pressure rating (PSI/bar) to the surface — too much pressure on pavers dislodges jointing sand and can void manufacturer warranties.

Q: How often should I pressure wash my driveway and roof?

A: For most Australian homes, a driveway benefits from a professional pressure wash every 1–2 years depending on tree coverage, weather exposure, and vehicle use. A sealed driveway can go longer between professional cleans. Roofs in humid coastal or shaded positions (Brisbane, Sydney, and tropical Queensland) may need cleaning every 2–3 years due to faster moss and lichen growth. Inland and drier climates (Perth, Adelaide) typically need roof cleaning every 3–5 years. Choice recommends checking your roof annually for early moss growth — catching it early means a simpler, cheaper clean.

Before the operator arrives

Brief your operator on known problem areas — the oil patch near the garage, the lichen on the south-facing roof slope, the paver section with embedded rust staining. A good operator will adjust their chemical pre-treatment and nozzle selection accordingly.

Clear the area: vehicles off the driveway, pot plants away from walls, furniture off the deck. The less time spent moving things on-site, the more time goes on the actual surface.

Check water restrictions with your local council if you are in a restricted zone. Pressure washing is water-intensive — a commercial unit at 15 litres per minute uses 900 litres per hour. Safe Work Australia also publishes guidance on chemical waste water containment that reputable operators follow.

Want an instant pressure washing price estimate? Use the free pressure washing quote calculator — enter your surface type and area, get a price indication in 30 seconds, no sign-up required.

You can also estimate costs for related services: gutter cleaning to bundle with your roof clean, or driveway resurfacing if your driveway needs more than a wash.

This is a price indication only. Your operator will confirm the final price after assessing the job.