Solar panels are a long-term investment. Like any outdoor equipment, they endure harsh conditions across seasons. Dirt, dust, bird droppings and pollution accumulate over time, preventing the panels from working as efficiently as they should. For commercial settings where output directly affects operating costs, cleaning isn’t optional. It’s a smart part of your maintenance plan. That’s why our commercial solar panel cleaning services are designed to make a genuine difference.
Cavalry Cleaning works with businesses all over the Midlands, South East, South West, East of England and parts of the North West including Manchester. We provide specialist commercial solar panel cleaning services tailored to complex setups, high-level installations and challenging site conditions. Our teams don’t just clean panels. We assess site access, identify hazards early and use only purified water systems that protect your panels long term—without chemicals or abrasive equipment.
Most commercial solar systems are installed at an angle and height optimised for maximum sun exposure. This helps rainwater slide off the surface, but it does not remove heavier grime, environmental pollutants or stickier substances like bird waste. In more exposed or polluted urban areas, buildup happens faster than expected. That buildup blocks sunlight, reduces your energy output and, ultimately, raises your costs.
Failure to clean them regularly can also shorten the lifespan of the system. Most manufacturers require ongoing cleaning to keep warranties valid. Avoiding professional cleaning also means you risk long-term wear, corrosion and trapped moisture that can trigger more serious maintenance issues down the line.
From logistics centres to schools, retail parks to healthcare facilities, every commercial site has its own solar setup and operational needs. Our engineers regularly service estates across Leicester, Reading, Manchester and beyond. Whether rooftop installations span across a warehouse or are split across a larger campus, our crew is equipped for it.
For example, we recently completed a full system clean at a commercial site near Swindon. The solar arrays were overdue for cleaning by nearly two years, resulting in severe grime buildup. After a detailed inspection and scheduled service, output levels reportedly improved within days, showing what a difference a professional clean can make.
We assess every site before any work begins. With roof types varying and access routes often elevated or narrow, a safe approach is essential. This includes full safety gear, site-specific risk assessments and planning that avoids disrupting daily operations.
We use purified water fed through controlled poles or automated systems. This removes tough grime without minerals or residue left behind. No chemicals, no brushes, no risk to your investment. Our team operates in line with your schedule, and always with minimal interruption to workflow.
Our client base is wide-ranging, supporting a broad mix of commercial industries and property types. If you rely on solar energy for powering operations, heating water, running systems or supporting sustainability targets, we can help keep your panels at full capacity.
Regular clients include:
Commercial infrastructure doesn’t run on a one-size setup. You might have separate buildings, overlapping systems or limited downtime. That’s why our solar panel cleaning services are flexible. Whether it’s an emergency clear-out or part of a planned PPM strategy, we’ll work with your facilities or maintenance coordinator to build a schedule that keeps your site cleaner and more energy efficient.
Key features of our commercial solar panel cleaning service:
Cleaning frequency depends on building environment and geography. Industrial zones near roads or air traffic accumulate dirt faster than isolated rural panels. Pollen is heavier in spring and moss thrives during wet winters. Our recommendation is typically one to two cleanings per year, depending on conditions and usage.
Routine inspections allow us to monitor early performance issues and proactively clean before productivity is reduced. This also aligns with many equipment manufacturers’ guidance, helping you protect your warranty.
Daily performance matters in commercial setups. Clean panels equal better output and lower overheads. The smart choice is consistent, tailored care from a partner who knows how to work safely on commercial rooftops and meet your operational needs.
