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Local Solar Panel Cleaning in Bristol

Solar panels work best when they’re clean — but dust, pollen, bird droppings, moss, and traffic pollution can reduce efficiency by 20–30%. Our specialist solar panel cleaning service helps homeowners and businesses across North Bristol maintain maximum energy output safely and effectively.
We use a pure water-fed pole system designed specifically for solar panels, ensuring a streak-free, scratch-free clean without chemicals or abrasive tools.

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Keep Your Solar Panels Performing at Their Best

Why Solar Panels Need Regular Cleaning

North Bristol’s environment can quickly affect solar performance:

Traffic Pollution & Dust Build Up

Areas like Filton, Patchway, Bradley Stoke, and Cribbs Causeway experience higher vehicle activity, meaning fine dust and pollution settle quickly on panels. This layer blocks sunlight & lowers energy output.

Bird Droppings Blocking Sunlight

Homes near rooflines, chimneys, and open garden spaces attract birds, and droppings leave opaque patches that severely interrupt solar absorption. Even small deposits can noticeably reduce performance.

Moss & Lichen From Nearby Roof Tiles

Older roofs and slate tiles in North Bristol often spread moss and lichen onto panels. These growths cling tightly, cause shading, trap moisture, and reduce efficiency if not removed safely.

Pollen & Tree Debris From Local Green Areas

Green areas like Almondsbury & Stoke Gifford produce pollen, seeds, and debris that stick to panel surfaces. This film traps dirt, slows light transmission, and makes panels degrade faster without maintenance.

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Myths and Truths About Solar Panel Cleaning

Facts & Statistics About Solar Panel Efficiency

Keeping your panels clean isn’t just maintenance — it directly impacts your energy production and long-term savings. Here are the key facts homeowners in North Bristol should know:

Multiple studies, including research from the National Renewable Energy Laboratory (NREL), show that dirt, dust, and bird droppings can reduce efficiency by 15–25%. Clean panels allow maximum sunlight absorption.

Spring months in areas like Almondsbury and Stoke Gifford see heavy pollen levels. Pollen combined with moisture forms a sticky layer that can reduce performance by up to 10% on its own.

Areas exposed to traffic pollution — such as Patchway, Filton, Cribbs Causeway, and Bradley Stoke — accumulate dust more quickly. This buildup creates a thin film that blocks light and lowers output.

Regular cleaning prevents moss, lichen, and deposits from damaging your panel surface. This helps maintain warranty conditions and extends lifespan, saving money in future repairs or replacements.

Rainwater can rinse off loose dust, but it does NOT remove:

  • Bird droppings
  • Sticky pollen
  • Traffic pollution film
  • Moss and lichen
  • Hard water marks

These elements require professional cleaning to be fully removed.

The University of California conducted field research showing that panels left only to the rain lost 7–12% efficiency annually. Areas with heavy pollution or debris experienced even greater losses

In many cases, rainwater leaves behind mineral marks (especially near industrial and high-traffic areas). These create micro-shadows that reduce panel efficiency.

Most panels sit between 20°–40°, which helps water run off, but doesn’t prevent dirt buildup at the bottom edge — one of the most common performance blockers.

Most manufacturers recommend cleaning every 6–12 months, depending on your surroundings.

Yes — dusty or shaded panels can lose 15–25% efficiency.

Absolutely. We use soft-brush water-fed poles and purified water only.

Yes. Our high-reach equipment safely handles all elevated areas.

You can also check our conservatory roof cleaning service.

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How We Clean Solar Panels Safely & Effectively

  • Purified Water Cleaning System
    We use a non-abrasive water-fed pole system with filtered, mineral-free water — the safest method for solar panels.
  • Suitable for Residential & Commercial Installations
    Whether you have a small domestic system or a large commercial array, we tailor our methods to your panel type and roof structure.
  • Zero Chemicals Required
    No detergents or harsh solutions. This protects the panels’ anti-reflective coating and prevents damage.
  • High-Reach Capability
    We safely clean hard-to-reach panels on bungalows, detached homes, extensions, and conservatory roofs.

Benefits of Professional Solar Panel Cleaning

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  • Increased electricity production
  • Longer system lifespan
  • Reduced need for costly maintenance
  • Better panel efficiency in low-light conditions
  • A cleaner, safer roof environment
  • Improved return on investment

Ready to Improve Your Solar Efficiency?

Keeping your solar panels clean ensures you’re getting the maximum return on your investment. Whether you’re a homeowner or a business relying on solar energy, we provide safe, professional, streak-free cleaning across North Bristol and South Gloucestershire.

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An image of before and after solar panel cleaning