How to Clean Solar Panels at Home

Solar panels are a smart investment—they lower energy bills and help the environment. But like any part of your home, they need regular care to stay efficient. Dust, pollen, bird droppings, and debris can block sunlight, reducing how much energy your system produces.

The good news is, you can clean solar panels at home with the right approach. But it’s important to do it safely and without damaging the glass or wiring. At JenyClean, we’ve helped many homeowners restore their solar panels to peak performance with careful, professional cleaning. Here’s a complete guide on how you can handle it yourself—or when it’s best to call in the experts.

Why Clean Solar Panels?

Even a thin layer of dust can affect performance. Studies show that dirty panels can lose 15–25% of efficiency, depending on how much buildup they have. Regular cleaning:

• Increases energy production
• Extends panel lifespan
• Prevents permanent staining from bird droppings or tree sap
• Keeps your system looking well-maintained

How Often Should You Clean Solar Panels?

• Every 6 months in most residential areas.
• More often if you live near highways, construction zones, or areas with heavy pollen.
• After storms or wildfires, which can leave behind ash and fine dust.

If you notice your energy output dropping without another clear reason, dirty panels may be the culprit.

Safety First

Cleaning solar panels often means working on the roof, which can be dangerous. Always:

• Use a sturdy ladder with stabilizers.
• Avoid cleaning on wet or windy days.
• Turn off the solar system before cleaning to prevent electrical hazards.
• Never step directly on the panels—they can crack under pressure.

Step-by-Step Guide to Cleaning Solar Panels

1. Gather Supplies

• Soft-bristle brush or sponge
• Garden hose with a gentle spray nozzle
• Bucket of lukewarm water
• Mild dish soap (if needed)
• Squeegee or microfiber cloth

2. Rinse Off Loose Dirt

Use the hose to gently wash away dust and leaves. Avoid high-pressure nozzles, which can damage seals.

3. Wash with Soapy Water

Dip a soft sponge or brush in soapy water and scrub lightly. Focus on areas with bird droppings or sticky residue.

4. Rinse Thoroughly

Make sure no soap film is left, as it can block sunlight just like dirt.

5. Dry for a Streak-Free Finish

Use a squeegee or microfiber cloth to wipe panels dry and prevent water spots.

What to Avoid

• Abrasive brushes or harsh cleaners – they can scratch the glass.
• Pressure washers – too strong for delicate panel seals.
• Hot midday cleaning – water can evaporate too quickly and leave streaks.

Early morning or evening is the best time to clean, when panels are cool.

DIY vs Professional Solar Panel Cleaning

DIY works for single-story homes with easy access and light dust buildup. But professional cleaning is safer and more effective when:

• Panels are hard to reach
• There’s heavy buildup (bird nests, sap, etc.)
• You want a full inspection for cracks or loose wiring

JenyClean Solar Panel Cleaning Services

At JenyClean, we provide safe, eco-friendly solar panel cleaning using purified water and non-abrasive tools. Our team ensures panels are spotless without risk of scratches, leaks, or electrical damage. Regular professional cleaning helps you get the maximum energy output from your investment—without ever climbing onto the roof yourself.