Solar Panel Cleaning

Solar Panel Cleaning – London

London Roof and Guttering have been providing exterior property cleaning and maintenance services for commercial and residential property owners in London, Greater London and the surrounding areas for many years.

During this time we have seen many of our regular customers install solar panels on their business and homes.

Naturally London Roof and Guttering started to offer our customers cleaning maintenance for their systems, however what surprised us the most was that in general most were unaware of the benefits of cleaning maintenance for their solar panels, in fact most said they were sold the system as cleaning and maintenance free.

Solar PV (Photovoltaic) panels have been around for many years. In fact the first observed  Photovoltaic effect took place way back in 1839.

However the modern day solar panel as we know it today has developed over the last 50 years with the last 5 years really accelerating due to the advancement in technology efficient panels and lower production costs.

Solar Panel Cleaning 1
Solar Panel Cleaning 2

Advantages of Solar Panel Cleaning

Solar PV (photovoltaic) panels work by emitting light into the solar panels cells. Naturally the more light that hits a panel, the more power it will generate.

Due to the  angle required for solar panels to work effectively, they are prone to natural external elements such as bird droppings, general dust and dirt and in London the unavoidable pollution in the air.

This dirt dust and pollution reduces the amount of light hitting the panel and reduces its efficiency and  output.

Projected energy figures claimed by solar panel manufacturers and installers are based on the optimum performance of clean solar panels, the build-up of dirt can adversely affect the panel’s ability to meet those projections.

Therefore it is important to clean solar panels in order to ensure maximum efficiency, it will also protect and maintain your investment.

Clean efficient solar panels  will also assist in  maximizing your return on the government feed-in tariff.

5 Reasons Why You Should Regularly Clean Your Solar Panels


Whilst rainwater is better than mains tap water for cleaning, it still has impurities contained in that prevent a completely clean panels, rainwater carries minute airborne  dust particles that clings to the panels when the rain water evaporates.

The high levels of dust smog and pollution in London  adds to the inefficiency of rainwater for solar panel cleaning.


Most studies prove that cleaning improves the efficiency of Solar PV panels, whilst it is debated in some countries with different climates, it is acknowledged that the solar PV equipment located in UK climate benefits from regular professional cleaning.

Solar PV Panel equipment located in London can benefit further than the average UK location due to the increase pollution levels encountered. 

Potential efficiency increases that have been achieved

  • Residential installation up to 20%
  • Large Industrial Commercial Sites up to 50-60%

Manufacturers Warranty

Most solar panel manufacturers and installation companies have  made cleaning and maintenance a condition of their warranty.

This means should you  encounter problems with your solar panels, your equipment may not be covered under warranty if you are unable to provide proof of regular solar panel cleaning by professionals.  

Our knowledge and experience  of solar panel warranties on comparison gives the same guidance, regular solar panel cleaning ensures your equipment is covered by their warranty. 

Google Recommends

It probably would not surprise you that technology giant Google have solar PV panels installed at their silicon valley headquarters in mountain view California, he may however surprise you that they were inquisitive to understand if Solar PV Panel cleaning was essential to ensure the efficiency  of their 1.6 MW installation.

Having carried out an initial clean  (15 months after Installation) on a selection of panels.

The Initial clean instantly double the the output, they carried out a second clean 8  months later,   the overall verdict from Google is that cleaning can increase the efficiency upto 36%. In their own words ”  we found that cleaning these panels is the #1 way to maximize the energy they produce” so there you have it google officially recommends Phoenix Solar Panel Cleaning.


You live in London – Ironic that you have chosen a system that is green produces energy with zero emissions yet you are surrounded by dust grime and pollution naturally (or should we save say not so naturally) produced by a big city.

Unfortunately one of the few downsides to living in the capital. dirt grime and pollution is the #1 detriment to your Solar PV panel installation.

Solar Panel Cleaning 3
Solar Panel Cleaning 4
Solar Panel Cleaning 5

Why Choose Us for you Solar Panel Cleaning Maintenance

London Roof and Guttering have been providing exterior cleaning and maintenance  commercial and residential properties in London, Greater London and the surrounding areas for many years.

We have service technicians covering all London postcodes.

We provide a range of services at low affordable rates. Our services include roof cleaning, gutter cleaning, gutter repairs and replacement all surface cleaning and of course solar panel cleaning.

Our service technicians are fully  insured, trained and experienced to carry out all our services to a high standard safely. Each technician has access to a range of equipment that ensure they tackle every job with ease.

We carry out activities on most properties up to four storeys high with  ladders eliminating the need for costly scaffolding. If there is a need to go higher then 4 storey then London Roof and Guttering have access to a range of specialist high level access equipment.

More reasons to choose us

London Roof and Guttering are able to offer low competitive rates for solar panel cleaning, this is because we are able keep our operational cost low by offering a range of services across London, Greater London and the Surrounding Counties.

Many of our customers have commented on how expensive Solar panel Cleaning companies are, generally this is due to them being primarily focused on large solar farms and large industrial scale installations meaning they have high overhead costs and are generally UK based rather than specific location/region.

A Service Over and Above Your Expectations

London Roof and Guttering take great pride in our customer service, Our company ethos is always to ensure 100% customer satisfaction, that why we are pleased to offer you a service over and above your expectations.

Our service technicians will always ensure that the service you receive is to a high quality standard.

As a business we always encourage our staff to to be real  GEM‘s This means that they are prepared to Go the Extra Mile to ensure we leave every customer with a Smile.

Area We Cover

Solar panel cleaning near me