Don’t let something as simple as blocked gutters reduce your solar panel’s effectiveness. 

You’ve invested a lot of money to supply your home with cost-effective, sustainable green energy. Understandably, you want to ensure you get a good return on your investment. 

Providing you keep your solar panels clean and well-maintained, they should last for around 25 years. But what if they’re not performing as efficiently as they could be? Have you started to suspect your solar panels aren’t working as they should?

Perhaps you’ve had an unexpected increase in your energy bill, or the software shows reduced energy output. There are many reasons why solar panels don’t work as expected. If you think your solar panels aren’t firing on all cylinders, don’t panic. The cause might not be what you expect. It might just be a simple case of them needing a clean.

Something as simple as accumulated dirt and debris can impact their ability to absorb and convert sunlight. That’s why regular maintenance is essential. Read on to discover the link between clean gutters and efficient solar panels.

Importance of cleaning and maintaining your gutters and solar panels

Clean gutters may seem unrelated to solar panel efficiency, but they’re more connected than you think.

It may not be immediately obvious, but your gutters are crucial to your solar panel’s efficiency. Water flow is disrupted when leaves, debris, and dirt clog gutters. This leads to water pooling on your roof, increasing the risk of damage to your solar panels. When the water recedes, a layer of sludge can be left on your panels, reducing their efficiency. The excess moisture also creates a breeding ground for mould, further compromising panel efficiency.

Regular gutter cleaning ensures rainwater drains from your roof properly, reducing the risk of water damage, dirt build-up, and mould growth. It pays to prioritise gutter maintenance to protect your home and maximise your solar panel’s return on investment.

A picture of a terracotta tiled roof and solar panel. Both covered in moss and mould.

Hidden issues caused by blocked gutters

Don’t underestimate the impact of blocked gutters. They’re not just an inconvenience; they can lead to serious issues. Water overflow from blocked gutters can cause roof leaks, threatening your home’s structure and your solar panel’s electrical systems. The damp environment from overflowing gutters is also perfect for mould and algae growth, potentially shortening your solar panel’s lifespan. In a previous blog, we discussed how most insurance policies don’t cover damage that could have been prevented with regular maintenance.

How shade impacts solar panels

Even a small amount of shade on one part of a solar panel can significantly reduce its power output. Solar panels are often connected in series within a string, and shading on even a single panel can decrease the performance of all linked panels. 

When installing new solar panels, it’s important to consider potential shading from trees, buildings, and other structures. Ideally, panels should be placed in locations that don’t get a lot of shade. Overhanging trees and foliage should be regularly trimmed to ensure they don’t overshadow your panels. 

Overhanging branches also attract birds. Have you ever noticed those patches of bird droppings where birds roost? Accumulated bird droppings aren’t a good look and can impact your panel’s efficiency. They’re also corrosive, so it’s best to clear them regularly.

How often should you clean your gutters and solar panels?

We suggest you clean your gutters at least twice a year — once in spring before the hot weather starts and again after the autumn leaves have fallen. If you live in bushfire or heavy rainfall areas you may require more frequent cleans. 

It’s best to clean your solar panels at least once a year. If you live in coastal areas, it pays to clean them twice a year to reduce salt erosion.

A red corrugated iron roof with solar panels next to a gutter that has just been cleaned.
Shiny clean solar panels on a red corrugated iron roof

Stay ahead of any issues with regular gutter and solar panel cleaning

Solar panels are a smart investment for eco-friendly energy production. Regular cleaning can help you get the most from your renewable energy system. Routine gutter and solar panel cleaning allows you to spot and address any issues before they escalate.

Roof to Floor Maintenance can help if you lack the knowledge, equipment, or capability to maintain your valuable investment.

Our solar panel and gutter cleaning service includes:

  • Solar panel clean
  • Removal of leaves and debris from roof and gutters
  • Removal of small overhanging branches (if required)
  • Water flow test to ensure gutters are clear
  • Blower vac of your yard and leaf removal
  • Bird waste removal from on and around panels
  • High-pressure roof clean (can be quoted as part of a whole job)
  • Bird barrier application to stop birds from returning to roost under the panels (if required).

Including gutter and solar panel cleaning in your regular home maintenance schedule is a small step that can lead to significant benefits. It will ensure that your green investment continues to pay off for years to come.

Think your gutters and solar panels need a clean?

Follow these simple steps to arrange a quote.

  1. Request a quote here.
  2. Enter your contact details.
  3. Let us know how we can help. Please provide a brief outline of what you need.

Or, call us on 0412 204 645 or email

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