Already cleaned 120+ installations in the Brussels region

Cleaning solar panels in Brussels

Name: Solarco
Rating: 5

In the Brussels Capital Region, solar panels are constantly exposed to traffic fine dust, urban soot and bird droppings. These loads quickly build up into a greasy film that causes visible yield losses, even after a rain shower. We clean your installation safely with osmosis water, without you having to go up on the roof yourself.

Request a quote for Brussels

More info

5/5 Google Reviews

Active in BE, NL, DE & FR

Since 2018

500+ corporate clients

Brussels: specific conditions for solar panels

As a capital region, Brussels combines high traffic density, dense urban emissions and a significant bird population in a relatively small area. The result: solar panel installations that retain a thin, greasy layer of soot faster than elsewhere in the country.

Local factors affecting returns

Traffic emissions: the interplay of Ring R0, minor and major ring creates continuous deposition of particulate matter and soot on rooftops throughout the 19 municipalities.
Urban precipitation: boilers, construction sites and industrial fringe areas generate additional dust that sticks to the glass due to temperature fluctuations.
Pigeon droppings: the high urban pigeon population leaves localised stains that can burn in permanently without cleaning.
Pollen and tree seeds: the large trees along the Brussels avenues and in the Sonian forest spread quite a lot of pollen in spring and summer.

What that means for your installation

For installations in Brussels, we recommend cleaning once or twice a year, depending on your location in relation to the Ring or a busy thoroughfare. Roofs in Anderlecht, Schaerbeek or Forest close to industrial areas usually see faster results from an extra turn.

Request a quote for Brussels

Getting solar panels professionally cleaned

Getting solar panels cleaned doesn't have to be complicated. You request a quote, we schedule a date, and our team does the rest - you don't even have to be there. Afterwards, you will receive a report with before and after photos. No hassles, no surprises, no additional costs.

Our 4-step approach

Thorough pre-inspection

Visual + thermographic check of your installation. We identify hotspots and damage before cleaning.

Robotic cleaning with osmosis water

Our certified cleaning robots operate on battery, without chemicals. Osmosis water dissolves all dirt and leaves no streaks or residue.

Quality control

After cleaning, we recheck each panel. You will receive a detailed report with before and after photos.

Aftercare and Advice

Based on your installation, environment and production data we draw up an optimal cleaning calendar.

Why companies choose Solarco

Professional and environmentally friendly

Solarco uses professional techniques to clean your solar panels, including robotic cleaning systems and osmosis water. This is not only better for your panels, but also better for the environment as no harsh cleaning agents are involved in our solar panel cleaning.

Safety first

We always work according to strict safety guidelines. Our operators are fully certified and trained to work on aerial platforms and roofs. Moreover, we have comprehensive insurance that covers any kind of risk or liability. This allows us to safely clean solar panels.

Innovative cleaning robots

For large solar parks or extensive roof installations, Solarco deploys robot cleaners. These robots run on batteries and are certified by renowned module manufacturers. The robot can quickly and evenly clean large installations of solar panels without damaging the panels.

Request a quote

Benefits of professional solar panel cleaning in Brussels

Higher efficiency: Several studies show that cleaning solar panels can provide an efficiency improvement of a few percent to as much as 15%, depending on the degree of contamination.
Longer lifespan: By preventing dirt build-up and hot spots, your entire system will last longer.
Safety and warranty: Many manufacturers recommend professional cleaning to maintain the warranty. Climbing a roof yourself is also not without risk.
Time savings: With the right tools and experience, we can take care of a large installation in a short time, while you yourself spend your precious time on other things.
Sustainable approach: Osmosis water and robotic cleaning minimise the use of harmful chemicals, which is better for the environment as well as for the panels themselves.

Request a quote

Frequently asked questions about solar panel cleaning Brussels

Due to the high traffic on the Ring Road and urban emissions, we recommend one to two cleanings per year in Brussels. Roofs near Anderlecht, Forest, Saint-Josse or along the rue de la Loi usually get extra benefit from a second cleaning.

Rain removes loose dust, but the greasy soot layer typical of urban emissions sticks to it. In Brussels, we see that rain alone is insufficient to maintain efficiency levels.

Yes. We clean private roofs in all 19 municipalities and large commercial installations on office buildings, logistics zones around Anderlecht and Haren, and on public buildings. Our cleaning robots process installations with thousands of modules in a short turnaround time.

Customers in Brussels typically see between 12 and 25% yield recovery immediately after cleaning, with the highest gains on roofs near the Ring or industrial zones. We measure or estimate the gain with you based on your monitoring data.

We work in all 19 Brussels municipalities, including Brussels City, Schaerbeek, Anderlecht, Ixelles, Sint-Lambrechts-Woluwe, Uccle, Forest, Etterbeek, Saint-Gilles and Jette, and in the surrounding outskirts such as Halle, Vilvoorde, Tervuren and Overijse.