Solar Panel Cleaning in Altona

If you have solar on your Altona home or business, cleaning it isn’t optional — it’s mandatory. Solar panel cleaning in Altona isn’t just about looks; it’s about energy production, solar assets and long-term savings.

At Window Cleaning Melbourne Crew, we’ve been cleaning Altona’s rooftops long enough to know the local challenges: sea salt from the bay, bird droppings near the wetlands and wind-blown dust from the industrial zones. These environmental factors coat panels faster than you think, robbing your solar energy investment of performance and reducing your energy output by up to 30%.

A few shoots from our work process

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All About Solar Panel Cleaning in Altona

When your solar panels are covered in dust, bird droppings or salt residue, sunlight can’t reach the cells. This reduces energy production and makes your solar inverter work harder, shortening its life.

Data from the Australian PV Institute shows dirty panels can lose between 10% to 25% of their capacity. In coastal suburbs like Altona, that figure is even higher due to airborne salt and grit.

Condition Of PanelsAverage EfficiencyEnergy Loss
Professionally Cleaned100%0%
Light Dust90–95%5–10%
Heavy Grime & Salt75–85%15–25%
Over 12 Months Without Cleaning60–70%30–40%

A 10% loss in output means less power for your home — and more money to the grid. Keeping panels clean maintains peak performance, supports energy savings and protects your solar investment.

It’s tempting to grab a hose or bucket and tackle solar panel cleaning yourself. But solar glass isn’t like normal window glass — it has a delicate anti-reflective coating that can scratch easily. Harsh cleaning products or unfiltered tap water can leave mineral deposits that reduce sunlight absorption.

There’s also the matter of safety. Roofs get slippery when wet, and without proper OH&S equipment, one wrong step could be disastrous.

DIY risks include:

  • Damaging the panel surface with abrasive brushes.
  • Leaving hard-water streaks that lower performance.
  • Risk of electrical shock near isolation switches.
  • Falling hazards on sloped or wet roofs.

Professional teams like Window Cleaning Melbourne Crew use purified water systems, Melbourne solar panel cleaning machines and soft-bristle brushes to clean safely. Each cleaning follows manufacturer guidelines and doesn’t void your warranty.

Cleaning solar panels involves water, height and electricity — a combination that requires professional care. Our team is fully trained in height safety, industrial abseiling and SAA-accredited procedures to ensure every job is done safely and efficiently.

Our safety standards include:

  • Using anchor points and certified harness systems.
  • Checking roof integrity and avoiding fragile tiles.
  • Isolating power with an A Grade electrician before cleaning.
  • Full public liability insurance for your peace of mind.

And beyond the cleaning itself, we also inspect your roof and report any loose fittings or corrosion that could cause water damage or leaks. When it comes to working at height, leave it to the pros.

Our process combines precision, eco-friendly methods, and technical insight to get your panels performing at their best.

Our 5-Step Solar Cleaning Process

  1. System Inspection: We inspect for cracks, debris or bird nests. We also check for inverter errors and do solar system health checks to catch any early issues.
  2. Safety Setup: We set up rope systems and harnesses, and an A Grade electrician checks all isolators before we start.
  3. Pure Water Cleaning: We use 100% pure water and soft-bristle brushes. This protects coatings and prevents residue buildup.
  4. Thermal Scan & Final Rinse: With UAV-based thermal inspections, we detect hotspots or malfunctioning cells invisible to the eye. The rinse leaves the panels crystal clear.
  5. Performance Verification: We compare your output before and after cleaning via inverter data or monitoring apps, to confirm restored cleaning capacity and higher yield.

We use no chemicals, no detergents, no runoff — only environmentally safe advanced cleaning techniques approved for solar equipment.

Altona’s coastal winds and salt air mean panels need cleaning more often than in inland suburbs.

Location TypeRecommended FrequencyReason
Homes Near The BayEvery 6 MonthsSalt and seabird droppings
Suburban Homes (Altona North, Seaholme)Every 9–12 MonthsDust and pollen buildup
Commercial & Industrial SitesEvery 3–4 MonthsPollution and warehouse dust

We recommend syncing cleaning with seasonal solar system health checks. This ensures your inverter troubleshooting data stays accurate and prevents small issues from turning into big repairs.

Altona rooftops face tougher grime than most – sea air, gull droppings and industrial dust. These contaminants form crusty layers that standard hosing can’t remove.

That’s why we use specialised solar panel cleaning machines and UAV-based thermal inspections for deeper maintenance. Our tools reach every corner without scratching or disrupting your panels.

We also inspect gutters, drains and rooflines and offer garden maintenance advice to prevent overhanging branches from shading panels or clogging gutters.

It’s all part of keeping your system at peak efficiency and delivering energy savings for years to come.

Why Choose Us

Customer-Centric Approach

Your satisfaction is our top priority. We tailor our services to meet your specific needs

Eco-Friendly Practices

We are committed to environmental responsibility. Our cleaning products are eco-friendly.

Competitive
Pricing

We offer competitive pricing without compromising on the quality of our services.

Local
Expertise

As a locally owned and operated company, we understand the unique needs of our community.

 FAQ

No. Tap water leaves mineral deposits and streaks that reduce performance. Professionals use purified, de-ionised water to avoid this.

Every 6 months is ideal for coastal suburbs. More frequent cleaning may be needed during bird nesting or pollen seasons.

DIY cleaning can — if you scratch the coating or damage wiring. Professional cleaning that follows manufacturer guidelines keeps your warranty intact.

No. Rain spreads dust and salt, leaving streaks that reduce sunlight absorption.

Yes. Dirt reduces energy flow, making your inverter work harder and heat up faster — shortening its lifespan.

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