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Professional Solar Panel Cleaning Service
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Clean Panels. More Energy. Lower Bills.
Solar panels work by capturing sunlight. The more light that hits a panel, the more power it generates. But over time, dirt, dust, pollen and other contaminants can build up on the panel’s surface, reducing the amount of light it gets and, in turn, its efficiency and energy output.
More sunlight on your panels = more solar energy = lower utility bill.
Regular solar panel cleaning helps keep your system running at peak performance to enhance both energy production and the lifespan of your investment.
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Key Benefits of Solar Panel Cleaning
- Enhance Energy Production. Research has found that only a few weeks of buildup prevented sunlight from reaching solar panels. Cleaning can improve solar efficiency by as much as 50%.
- Better Than Rain. Like how rainwater doesn’t fully clean your car’s windshield, the same principle holds true for your panels. Professional solar panel cleaning is important to maximize the light they get and, in turn, the energy they make.
- Increase Durability. The buildup of contaminants contributes to wear and tear on your panels if not regularly cleaned. Not only does this impact solar efficiency, but it can cause your system to fail sooner than anticipated.*
- Better Than DIY. Sunnova uses specialized equipment, panel-safe practices and safety protocols to clean your array, eliminating the risks associated with DIY solar panel cleaning.
- Aesthetic Appeal. The last thing you want is an underperforming solar system that also looks dirty and aged. Taking proper care of your panels makes your home more visually satisfying for both you and your visitors.
Our 5-Step Solar Panel Cleaning Process
Solar Panel Repair & Maintenance
Own a solar and/or battery system not purchased through Sunnova? If it needs one-time maintenance or repair, we've got your back.
Solar Panel Cleaning Service FAQs
Why use Sunnova Repair Services®?
More than a solar panel cleaning company, Sunnova is a leading name in solar energy solutions, serving 438K+ homeowners across America since 2012. Our technicians are experts in their field, undergo hundreds of hours of specialized training and are certified to work on most major solar brands.
How much does solar panel cleaning cost? 
Our solar panel cleaning service starts at $300. However, your price may vary based on the size of your system, location, condition, improvements, updates, lot sizes and building type — among other factors.
My solar system isn’t from Sunnova — can I still use you? 
Yes. Whether you originally purchased your solar system through Sunnova or another provider, our solar panel cleaning services are available to you.
Why can’t I just clean my solar panels myself?
While cleaning your solar panels yourself might seem simple, it’s not always the best idea. They’re often hard to access safely, and improper cleaning techniques or tools can damage the surface, interfering with efficiency. Hiring professionals ensures your panels are cleaned safely, thoroughly and without damage, preserving their performance and your investment.
Won’t rainwater just clean my solar panels for free? 
Rain won’t always clean your solar panels. It can still leave behind contaminants that block sunlight and reduce energy output. Think of your car windshield after months without cleaning — rain may rinse it, but grime still builds up, clouding visibility. Solar panels face the same issue, so professional cleaning is key to maximizing sunlight (and energy).
How often should I clean solar panels? 
We recommend getting your solar panels professionally cleaned 1-2 times a year, depending on the climate in your area.