If you’re thinking about refreshing your roof, restoring faded colour, or giving your home a modern new look, roof spraying (also called roof painting) is one of the most affordable ways to transform your home’s exterior. But the question every homeowner asks first is: How much does roof spraying cost in Australia?
To help you plan your project with confidence, this guide breaks down the typical price ranges, the factors that influence cost, and what you can expect from a professional roof spraying service in Illawarra
Average Cost of Roof Spraying in Australia (2025)
In Australia, roof spraying typically costs between $20 and $40 per square metre, depending on the roof type, condition, and coating used.
Below is a general price guide:
Roof Type | Average Cost (per m²) | Typical Total Cost |
Metal / Colorbond Roof | $20 – $30 | $2,000 – $4,500 |
Concrete Tile Roof | $25 – $35 | $2,500 – $6,000 |
Terracotta Tile Roof | $30 – $40 | $3,500 – $8,000+ |
Large or Complex Roofs | $35+ | $6,000 – $12,000+ |
Most single-storey Australian homes pay between $4000and $7500 for professional roof spraying.
What’s Included in Roof Spraying?
A high-quality roof spraying service should include:
- Roof inspection
- Pressure cleaning
- Repairs (cracks, broken tiles, rust treatment)
- Primer / sealer coat
- Two top coats of roof membrane or acrylic roof paint
- Clean-up and final inspection
At WM Painting & Decorating, being best painters in Illawarra & South Coast, we follow a strict 4-stage process to ensure long-lasting, even coverage and a premium finish—no shortcuts.
What Affects the Cost of Roof Spraying?
1. Roof Size & Accessibility
The bigger the roof, the more materials and labour required.
Roofs with steep pitches, limited access, or double-storey heights cost more to work on.
2. Roof Type
Different materials require different preparation and coatings.
- Metal roofs are fastest to clean and coat (cheaper).
- Concrete tiles require sealing before top coats (medium cost).
- Terracotta tiles often need extra cleaning and specialist primers (more expensive).
3. Roof Condition
If your roof needs repairs before painting, costs may increase:
- Re-bedding & re-pointing ridge caps
- Replacing cracked tiles
- Treating rusted areas
- Fixing loose sheets
- Removing mould or lichen
A roof in poor condition may add $300–$1,500 to your project.
4. Quality of Paint or Membrane
Premium roof membranes (Dulux, Haymes, or similar) last longer and resist UV better but cost slightly more upfront.
Expect material pricing differences of $300–$700 between cheap and high-end coatings.
5. Number of Storeys
Double-storey homes typically cost more due to scaffolding or height safety requirements.
Read About main steps before you spraying your roof.
Is Roof Spraying Worth It?
For most homeowners, yes—roof spraying is one of the highest-value improvements you can make.
Benefits include:
- Boosts property value & street appeal
- Extends the life of your roof
- Protects against UV, rain & cracking
- Refreshes an outdated or faded colour
- Costs far less than roof replacement
A full roof replacement can cost $12,000–$40,000, while spraying achieves a similar visual transformation for a fraction of the price.
How Long Does Roof Spraying Last?
A professionally sprayed roof typically lasts:
- 8–15 years for tile roofs
- 10–20 years for metal roofs
This depends on the type of roof, the quality of prep work, and the paint used.
Premium membranes like Dulux Acratex and Haymes RoofCoat offer longer durability.
Roof Spraying vs Roof Restoration: What’s the Difference?
Many homeowners confuse the two. Here’s the breakdown:
Service | What It Includes | Cost |
Roof Spraying | Clean + prep + repaint | $2,000–$6,000 |
Roof Restoration | Repairs + re-bedding/repointing + cleaning + repainting | $3,500–$12,000 |
If your roof is in decent condition, spraying is enough. If your roof is cracked, damaged, or leaking, restoration is the better choice.
Example Cost Scenarios
Small Metal Roof (120m²)
- Light cleaning, minimal repairs
- Cost: $2,200–$3,000
Medium Tile Roof (180m²)
- Moderate cleaning, ridge cap repointing
- Cost: $3,200–$5,500
Large Terracotta Roof (250m²)
- Heavy cleaning, special primer
- Cost: $6,000–$9,000
How to Get an Accurate Quote
Every roof is different, so the best way to get exact pricing is to have a professional perform an inspection. At WM Painting & Decorating, we provide:
- Free roof assessments
- Transparent, itemised quotes
- Recommendations based on your roof type and budget
Ready to Refresh Your Roof?
If you want a stunning, long-lasting roof finish that boosts your home’s value and street appeal, our expert roof spraying team is here to help.
Request a free quote today from WM Painting & Decorating.
We’ll inspect your roof, explain your options, and give you an honest, upfront price—no surprises.
FAQs
Can roof spraying change the look of my whole house?
Yes. A fresh roof colour can make an older home look much newer. Choosing a colour that works with your walls, trims, and other exterior features can make the whole property feel more balanced.
Is roof spraying suitable for every type of roof?
Not always. The roof needs to be in reasonable condition before spraying. If there is major damage, leaks, or widespread deterioration, repairs or restoration may need to come first.
What should I do before having my roof sprayed?
Make sure the roof is checked for leaks, damaged tiles, rust, or other problems first. It is also worth clearing nearby areas so the painting team has safe and easy access to the roof.
Can the weather affect a roof spraying job?
Yes. Rain, strong winds, and very damp conditions can affect cleaning, drying, and how well the coating sticks. A professional will usually choose a suitable weather window for the work.