SOAKD Exterior Cleaning is a professional exterior cleaning company servicing Sydney, the Central Coast, and Newcastle. Our softwash roof cleaning service is designed to safely and effectively remove biological growth from your roof while protecting the surface integrity that keeps your property watertight and looking its best.
Your roof is your property's first line of defence against the elements. Along the NSW coast, salt air, humidity, and moisture create the perfect environment for mould, lichen, algae, and moss to take hold. Left untreated, this biological growth does more than look unsightly - it actively damages your roof by retaining moisture against the surface, lifting tiles, degrading protective coatings, and compromising the waterproof membrane beneath.
What Is Softwash Roof Cleaning?
Softwash is a low-pressure cleaning method that combines controlled water flow with purpose-selected biodegradable cleaning solutions. Instead of blasting growth off the surface with high pressure, softwash kills mould, lichen, algae, and moss at the root level. The biological growth dies, detaches naturally, and rinses clean - leaving a surface that stays cleaner for significantly longer than pressure-washed results.
This is the method recommended by most roof tile manufacturers, including major Colorbond and terracotta tile brands in Australia. It is the only method SOAKD uses on roof surfaces, because we know from 20+ years of experience in construction and exterior maintenance that high-pressure cleaning causes more harm than good when applied to roofing materials.
Why Softwash Is Better Than Pressure Washing for Roofs
High-pressure cleaning might look impressive, but on a roof it creates problems that most homeowners and property managers only discover months later. Here is what happens when high pressure is used on roofing materials:
- Coating removal: Colorbond and painted roof tiles have a protective coating that resists UV, moisture, and corrosion. High pressure strips this coating, leaving the base material exposed to accelerated weathering.
- Tile damage: Concrete and terracotta tiles can crack under high pressure, especially older tiles with existing micro-fractures. Once cracked, water penetrates the roof cavity.
- Water penetration: High-pressure water forced under overlapping tiles bypasses the waterproof membrane and enters the ceiling cavity. You may not see the damage for weeks or months.
- Short-lived results: Pressure washing removes growth from the surface but does not kill the root system. Regrowth begins within weeks, not months.
Softwash avoids every one of these issues. Low pressure means no coating removal, no tile cracking, and no forced water penetration. And because the treatment kills growth at the cellular level, results last 12 to 24 months - often longer in well-ventilated roof areas.
Roof Types We Clean
SOAKD softwash roof cleaning is suitable for every common roof type found across Sydney, the Central Coast, and Newcastle:
- Colorbond steel roofing: Our softwash solutions are safe for all Colorbond colours and coatings. We clean without affecting the manufacturer's warranty conditions.
- Concrete roof tiles: The most common roof type in coastal NSW. Concrete tiles are porous and prone to biological growth, making them ideal candidates for softwash treatment.
- Terracotta roof tiles: Premium terracotta tiles require gentle treatment to preserve their natural appearance and glazed finish. Softwash is the only safe cleaning method.
- Painted and coated roofs: Any roof with a painted or applied coating should only be cleaned with low-pressure methods. Softwash preserves the coating while removing surface growth.
- Metal roofing: Zincalume, Galvalume, and other metal roofing profiles are safely cleaned using our softwash system, targeting corrosion-causing biological deposits.
The SOAKD SecureClean Process for Roof Cleaning
Every softwash roof cleaning project follows our four-step SecureClean System. This structured approach ensures consistent results, protects your property, and eliminates the guesswork that leads to damage.
Step 1: Safety-First Assessment
Before we unpack a single piece of equipment, we complete a full site safety assessment. This includes hazard identification, height-access planning, surface condition evaluation, and environmental assessment. Our team holds height-access qualifications, and we prepare Safe Work Method Statements (SWMS) for every job involving roof work.
Step 2: Optimised Method Selection
We assess the roof type, condition, and growth severity to select the correct cleaning solution concentration and application method. Different biological growth - mould, lichen, algae, moss - responds to different treatment approaches. We test a small area first to confirm the method is appropriate before proceeding across the full roof.
Step 3: Asset Protection Execution
We apply the softwash treatment section by section, working systematically across the entire roof surface. Surrounding areas - including gardens, outdoor furniture, vehicles, and paths - are protected before application begins. The cleaning solution dwells on the surface for the required contact time, then the entire roof is rinsed at low pressure.
Step 4: Keep-Up Maintenance Plan
After cleaning, we complete a walkthrough and provide a detailed condition report with before-and-after photography. Based on your roof type, location, and exposure, we recommend a maintenance schedule - typically 12 to 18 months for coastal properties - so you can set and forget without worrying about when to rebook.
How Long Do Results Last?
Softwash results typically last 12 to 24 months. Properties with good ventilation and sun exposure tend to stay cleaner for longer. Properties surrounded by trees, in shaded positions, or exposed to heavy coastal moisture may benefit from annual treatment.
The key difference between softwash and pressure washing results is regrowth speed. Because softwash kills biological growth at the root, it takes significantly longer for new growth to establish. Pressure washing only removes the visible surface layer, meaning regrowth begins almost immediately from the root system left behind.
Why Choose SOAKD for Roof Cleaning?
- 20+ years of high-risk industry experience: Daniel Fenton built SOAKD on two decades of construction safety discipline. Every roof job is planned and executed with the same rigour applied to commercial construction projects.
- Height-access qualified: We hold the qualifications and carry the safety equipment required for working at heights. Full SWMS documentation is provided for every job.
- Manufacturer-recommended method: Softwash is the cleaning method recommended by roof tile and Colorbond manufacturers. We follow their guidelines to protect your warranty and your surface.
- Commercial-grade equipment: Our truck-mounted softwash systems deliver consistent pressure and solution concentration across the entire roof surface. No residential-grade shortcuts.
- Coastal NSW specialists: Salt air, humidity, and constant moisture make coastal roofs particularly vulnerable to biological growth. Our methods are specifically designed for these conditions.
- Fully insured: SOAKD carries full public liability insurance and workers compensation. Your property and our team are protected on every job.
Servicing Sydney, Central Coast & Newcastle
SOAKD Exterior Cleaning provides softwash roof cleaning across Sydney, the Central Coast, and Newcastle. Whether you have a single-storey home in Terrigal, a two-storey townhouse in the North Shore, or a commercial building in Newcastle, our team delivers the same professional standard and documented process.
To book a free site assessment and receive a no-obligation quote for softwash roof cleaning, call us on 0418 167 798 or request a quote online. We respond within 24 hours.
