Cleaning render is an important part of maintenance for properties with rendered surfaces. Over time dirt, algae, moss and pollution can build up and make the surface look dull and unkempt. Regular cleaning not only enhances the look of your property but also extends the life of the render. One of the most common questions property owners ask is: how much does render cleaning cost per square metre (m²)? This article breaks down the factors that affect render cleaning costs, typical price ranges and what to expect from a professional service.
If you are looking for render cleaning Melbourne, professional services in the area can provide solutions for different render types.
Factors that Affect Render Cleaning Cost
Several factors affect the cost of render cleaning per m². These are:
1. Type of Render
Different types of render require different cleaning methods. Some are soft and need a gentle wash while others can handle high pressure cleaning. Common render types are:
- Silicone Render – Soft wash only.
- Cement Render – Can handle pressure washers.
- Acrylic Render – Mild chemical cleaning.
- Monocouche Render – Prone to algae and discoloration, often requires biocide treatment.
2. Level of Dirt and Contamination
The dirtier the render is the more time and effort needed to clean it. Common contaminants are:
- Algae and moss growth
- Pollution and traffic grime
- Stains from water run-off
- Lichen and black spots
3. Cleaning Method
Different cleaning methods have different costs. Common methods are:
- Soft Washing Method – Low pressure water with cleaning solution, good for algae and dirt removal.
- High Pressure Washing – Suitable for robust render types but not for delicate finishes.
- Biocide Treatment – Prevents regrowth of algae and moss.
- Steam Cleaning – High temperature steam to lift dirt and grime without damaging the surface.
Hiring a pressure washing service ensures the right method is used to clean your render without damaging it.
4. Size and Accessibility of the Area
Larger properties or larger surface areas cost less per m² due to economies of scale. If scaffolding or cherry pickers are required for high exterior walls, extra costs apply.
5. Location
Prices vary based on the region. Urban areas with higher living costs have slightly higher cleaning rates.
Typical Render Cleaning Costs Per m²
Below is a general guide to render cleaning prices in Australia:
| Cleaning Method | Cost per m² (AUD) |
|---|---|
| Soft Washing | $5 – $15 |
| High-Pressure Cleaning Service | $3 – $10 |
| Biocide Treatment | $7 – $20 |
| Steam Cleaning | $8 – $25 |
Extras
- Scaffolding/Access Equipment: $100 – $500 (if required)
- Protective Coatings: $10 – $20 per m²
- Moss & Algae Prevention Treatment: $5 – $10 per m²
- Commercial Gutter Cleaning: $150 – $400 per job
- Driveway Cleaning (Concrete Driveway): $3 – $8 per m²
DIY vs Professional Render Cleaning
DIY Cleaning
Some property owners try to clean render themselves using household cleaners and a hose. While this works for light dirt, DIY methods won’t remove deep stains and organic growth effectively. Using the wrong cleaning products or pressure settings can damage the render.
Professional Cleaning
Hiring a render cleaning service means the right products and methods are used. Professionals also have access to high quality treatments that prevent regrowth of algae and moss, saving you money in the long run.
How to Choose a Render Cleaning Service
When choosing a pressure cleaning company consider:
- Experience with different types of render
- Good reviews
- Eco friendly render cleaning services
- Competitive pricing with transparent quotes
Conclusion
The cost of render cleaning per m² varies depending on the type of render, level of contamination and cleaning method used. Prices are $3 – $25 per m², with extras for special treatments or equipment. A professional will give you a thorough, safe and long lasting clean, keeping your property looking great.
FAQ
How often should I clean my render?
Most recommend cleaning render every 2-3 years, but areas with high moisture or pollution may need more frequent cleaning.
Can pressure washing damage render?
Yes, if used incorrectly. High pressure washing can damage delicate renders like silicone and acrylic. Soft washing is usually the way to go.
How do I prevent algae growth on render?
Applying a biocide treatment after cleaning helps prevent algae regrowth. Keeping the area well ventilated and reducing moisture buildup also helps.
Is render cleaning covered by insurance?
In most cases render cleaning is considered maintenance and not insured. However if damage occurs due to incorrect cleaning, check with your insurer.
Can I use bleach to clean render?
While diluted bleach will remove algae and stains, it will also weaken the render over time. A professional biocide treatment is a safer option.