Multiple organisms and biological materials grow and establish themselves on roof surfaces, especially in damp and shaded areas. Identifying these organisms is essential for determining the most effective cleaning method for your roof.
Roof growth occurs due to moisture from rain, dew, or poor drainage, combined with shade from trees or north-facing slopes. Organic debris like leaves and twigs traps moisture and provides nutrients. Warm, humid climates accelerate growth, while older roofs with worn coatings are particularly vulnerable.
Every exterior cleaning company in Perth has a 5-star rating. It’s the standard, and frankly, what you should expect. No one’s impressed when you simply do what was asked.
So yes, here are some of our reviews that we are proud of but also some numbers that actually matter:
We get it – it’s hard to know who to trust when every cleaner looks the same online. That’s why we show real results from actual jobs across Perth, so you can see the difference a professional clean really makes before spending a cent.
If you’re selling your home and need instant results to boost curb appeal, high pressure cleaning is your best option. However, we view it as a last resort. It’s a forceful method that can potentially damage your roof, and it requires someone to walk on your roof, which may risk breaking tiles or capping.
If your roof is very old, we highly recommend avoiding high pressure cleaning and opting for a roof treatment instead.
Softwashing is a cleaning method that utilizes a specially formulated chemical application designed to effectively kill and loosen organic growth such as algae, lichen, moss, and fungus from your roof surface.
The cleaning solution is carefully applied at low pressure to ensure the safety of your roofing materials, and then it is thoroughly rinsed away using the same gentle, low-pressure approach. This particular cleaning method has proven to be most effective and works best when used on newer tiled roofs as well as Colorbond metal roofing systems.
With a roof treatment we apply a specific chemical (Benzalkonium Chloride) that kills and breaks down algae, lichen, and fungus at their roots. Over 9–18 months, the organic growth breaks down and rinses away naturally with the weather. While you don’t get the instant wow factor, this method offers several benefits:
When most people think about roof cleaning, they usually imagine high-pressure washing – but here’s the thing: that approach can actually cause more problems than it solves! At All West Pressure Cleaning, we take a different route. We use gentle softwashing techniques and specialized roof treatments that are specifically designed to get your roof sparkling clean while keeping it completely safe from any damage. It’s effective cleaning without the worry!
Pop your details into the quote form above – the more info you give us, the more accurate we can be. Once we get your request, we’ll be in touch within 24 hours (Monday to Friday).
One of our team will give you a quick call to:
Use aerial images (when possible) to estimate your job without needing a site visit
If needed, we’ll organise a free on-site quote for more complex jobs
Happy with the quote? We’ll get your job booked at a time that suits you. You’ll receive a confirmation by text and email, so you know it’s locked in.
Closer to the day, we’ll send a reminder with a few quick tips (like moving pot plants or outdoor furniture if needed).
You’ll get a text when we’re on our way, including a live tracking link, so you know exactly when we’ll arrive or if you have time to go grab a coffee (small latte with 1 please)
We’ll confirm the job details on-site, answer any last questions, then get to work making your outdoor areas look like new.
And yes, we accept card payments on the spot.
Let’s answer a few of your questions about our roof cleaning services.
Cleaning frequency depends on your environment and roof type. In humid or tree-heavy areas, clean every 3-5 years. With roof treatments, this extends to 7-10+ years. Regular inspections help determine timing.
Roof treatments work gradually over 9-18 months, killing growth at the root while natural weathering breaks it down. Though slower than instant cleaning methods, results last 2-3 times longer
Proper methods won't damage your roof. High pressure cleaning poses the most risk, so we recommend softwashing or roof treatments. Softwashing is low-pressure and safe, while treatments require minimal roof contact.
We strongly recommend professionals. Walking on roofs is dangerous and may damage tiles. Professionals have proper equipment, safety gear, and expertise to select appropriate methods. Wrong techniques can cause permanent damage or void warranties.
