Below is a calculator and breakdown of all major sections involved in exterior house painting. you can also check our guide on house painting cost in Melbourne.
Exterior Painting Cost Calculator
Final price is confirmed after an on-site visit or phone consultation.
Overview of Exterior House Painting Costs
| Section | Description | Typical Cost Range (USD/m²) | Main Cost Drivers |
|---|---|---|---|
| Exterior Walls | Main building surfaces | $12 – $30+ | Material, height, repairs |
| Facade | Decorative front structure | $15 – $45 | Design complexity, access |
| Doors & Windows | Frames and trims | $20 – $60 (per unit) | Material, detailing |
| Fascia & Soffit | Roof edges | $15 – $50 | Height, condition |
| Fences & Railings | Boundary structures | $10 – $50 | Material, rust, design |
| Deck / Balcony / Porch | Outdoor wood surfaces | $12 – $45 | Wear level, sealing |
| Garage & Structures | Doors and auxiliary buildings | $15 – $60 | Size, access, condition |
How to Calculate the Cost of Painting Your Home’s Stairwell
1. Exterior Walls (Exterior Walls)
Exterior walls are the largest and most important surface in any painting project. They require proper preparation before painting, including cleaning, repairing cracks, and applying primer.
Cost Factors:
- Surface area size
- Material type (concrete, brick, wood, siding)
- Condition of the surface (cracks or damage increase cost)
- Pressure washing requirement
- Number of paint coats
- Height of the building (scaffolding increases cost)
| Condition | Cost (AUD/m²) |
|---|---|
| Smooth new concrete | $12 – $18 |
| Brick surface | $15 – $25 |
| Wood siding | $18 – $30 |
| Damaged surface (repairs needed) | +$5 – $12 |
| Pressure washing required | +$2 – $4 |
| Two coats of paint | +$3 – $6 |
| High-rise scaffolding work | +$5 – $15 |
2. Building Facade (Facade)
The facade is the visible and decorative part of the building. It often includes complex architectural designs and different materials, which makes it more expensive to paint.
Cost Factors:
- Type of material (stone, wood, composite panels)
- Complexity of design
- Accessibility of surfaces
- Need for UV-resistant or premium coatings
- Height and safety requirements
| Condition | Cost (USD/m²) |
|---|---|
| Flat simple surface | $15 – $25 |
| Stone cladding | $20 – $35 |
| Wood / composite facade | $18 – $30 |
| Complex architectural design | $25 – $45 |
| Difficult access (height/angles) | +$8 – $20 |
| Premium UV-resistant coating | +$5 – $10 |
3. Doors & Windows
Doors and windows require detailed and careful painting because they include frames, trims, and small surfaces that need precision.
Cost Factors:
- Number of doors and windows
- Material type (wood, metal, PVC)
- Need for sanding or repair
- Decorative detailing complexity
- Type of paint (waterproof or anti-rust)
| Condition | Cost (AUD per unit / equivalent m²) |
|---|---|
| PVC frames | $20 – $40 |
| Wooden frames | $30 – $60 |
| Metal frames | $25 – $50 |
| Requires sanding & repair | +$10 – $25 |
| Decorative trims | +$15 – $35 |
| Waterproof / anti-rust paint | +$5 – $15 |
4. Fascia & Soffit (Roof Edges)
Fascia and soffit are located at the roof edges and are constantly exposed to weather conditions, making them important for both protection and aesthetics.
Cost Factors:
- Height and accessibility
- Condition of wood or metal (damage increases cost)
- Need for repair or replacement
- Requirement for scaffolding
- Moisture and weather exposure
| Condition | Cost (AUD/m²) |
|---|---|
| Easy access (low height) | $15 – $25 |
| Medium height | $20 – $35 |
| High elevation / scaffolding | $30 – $50 |
| Good condition wood | base cost |
| Rotten/damaged repair needed | +$10 – $30 |
| Metal fascia/soffit | +$5 – $15 |
5. Fences & Railings
Fences and railings are exposed structures that require durable paint, especially if they are made of metal or wood.
Cost Factors:
- Total length of fencing
- Material type (wood or metal)
- Rust or decay condition
- Design complexity (simple vs decorative)
- Need for anti-rust coating
| Condition | Cost (AUD/m²) |
|---|---|
| Simple wooden fence | $10 – $20 |
| Decorative wood design | $15 – $30 |
| Metal fence | $15 – $35 |
| Heavy rust removal | +$8 – $20 |
| Ornamental iron design | $25 – $50 |
| Anti-rust coating | +$5 – $10 |
6. Deck, Balcony & Porch
These areas are high-traffic outdoor spaces and require protective coatings to resist wear and weather damage.
Cost Factors:
- Type of finish (paint or wood stain)
- Condition of wood surface
- Level of foot traffic
- Need for sanding and restoration
- Number of protective layers (waterproofing, UV protection)
| Condition | Cost (AUD/m²) |
|---|---|
| Light sanding + stain | $12 – $25 |
| Full repaint (wood restoration) | $18 – $35 |
| Old/damaged wood restoration | $25 – $45 |
| Waterproof sealing | +$5 – $12 |
| Multiple protective coats | +$5 – $15 |
| High traffic usage | +$3 – $10 |
7. Garage & Auxiliary Structures
Garages and additional structures such as sheds are also part of exterior painting projects, especially in residential homes.
Cost Factors:
- Size of garage or structure
- Material of doors and walls
- Level of wear and damage
- Type of paint required (industrial or standard)
- Accessibility of the area
| Condition | Cost (AUD/m²) |
|---|---|
| Standard garage door | $20 – $40 |
| Metal garage door | $25 – $50 |
| Large industrial garage | $30 – $60 |
| Small shed / structure | $15 – $30 |
| Rust or damage repair | +$10 – $25 |
| Limited access area | +$5 – $15 |
Tips to Reduce Painting Costs
1. Do Basic Preparation Yourself
Cleaning surfaces, moving furniture, and removing loose paint can reduce labor time.
Savings: 5% – 10% of total project cost
2. Choose the Right Season
Painting in dry, stable weather reduces delays and repainting issues caused by rain or humidity.
Savings: 5% – 15% (avoids weather-related extra labor costs)
3. Fix Minor Repairs Before Hiring Painters
Repairing small cracks or holes in advance reduces contractor repair charges.
Savings: 5% – 12%
4. Use Standard (Mid-Range) Paint Instead of Premium Brands
Premium paints are more expensive but not always necessary for all surfaces.
Savings: 10% – 25% (material cost reduction)
5. Combine All Painting Work into One Project
Painting walls, trims, fences, and other areas together reduces setup and labor duplication.
Savings: 10% – 20%
6. Avoid Unnecessary Decorative Finishes
Skipping complex textures, patterns, or custom designs lowers labor time significantly.
Savings: 15% – 30% (especially on labor costs)
7. Compare Multiple Contractor Quotes
Prices vary between contractors for the same job scope.
Savings: 10% – 25% depending on negotiation
8. Ensure Easy Access to the House
Clear access reduces the need for scaffolding or extra equipment.
Savings: 5% – 15%
Final Summary
Exterior house painting is a combination of multiple tasks, not just applying paint. The final cost depends heavily on:
- Surface condition (new vs damaged)
- Material type (wood, brick, metal, etc.)
- Building height and access difficulty
- Preparation work (cleaning, repairs, sanding)
- Quality of paint and number of layers
A properly planned exterior painting project improves not only the appearance of a building but also its durability and protection against environmental damage.
