Active in 12 Belgian regions - Private to large industry

Cleaning solar panels in Belgium

Robotic cleaning, by a VCA- and IPAF-certified team. Residential from €150 flat rate. For commercial and industrial installations from €1 per panel, including thermographic inspection and report.

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Call +32 498 54 26 22

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Active since 2018

500+ corporate clients

VCA & IPAF certified

Belgian companies relying on Solarco for annual maintenance

Why solar panels in Belgium are polluting faster than you think

Belgium's climate and densely built-up environment create a unique combination of pollution factors. Unlike in dry or tropical countries, it is not one source of dirt here, but an accumulation: particulate matter from traffic, pollen and ammonia from agriculture, salt from coastal winds, and bird droppings that become especially persistent due to our humid winters.

Densely built-up and high traffic

Within the Antwerp-Brussels-Ghent triangle lies almost 40% of Belgium's population. Solar panels in these zones continuously receive fine dust, soot and rubber particles from motorways E40, E17, E19 and E313. We measure an average 8-12% efficiency loss in installations along these axes after 18 months without cleaning.

Intensive agriculture in Flanders and Wallonia

West Flanders, Limburg and Haspengouw have high concentrations of livestock and arable farming. Ammonia from stables binds to particulate matter and forms a sticky layer on glass. In the pollen seasons (April-June), we measure up to 20% efficiency losses at agricultural plants within 2 km of intensive operations.

Coastal and humid climate

Within 15 km of the North Sea, panels face salt precipitation and sand. Combined with our 200 rainy days a year, algae growth and limescale build up quickly. Residential roofs on the coast often benefit from semi-annual cleaning instead of annual.

Calculate your estimated return loss with our free yield loss calculator.

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Active throughout Belgium

Our team works from Herentals but is on the road daily in all Belgian provinces. No storage for distance within Belgium.

Is your municipality not listed? We clean solar panels in every Belgian municipality. Feel free to ask for a quote - we will let you know within 24 hours when we can schedule in your area.

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Price solar panel cleaning in Belgium

We work with fixed rates, including travel within Belgium and reporting. No surprises afterwards.

VAT: 21% for private individuals. Companies can recover VAT and deduct the cleaning as a maintenance cost for tax purposes.

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Type of cleaning	Price/panel	Price for 100 solar panels
Private	€5	€525
Commercial Installation	€1	€250
Industrial Installation	€0,40	€220

See the entire price list here

This is how you get your solar panels cleaned at Solarco

From application to report, it usually takes 1 to 3 weeks, depending on season and region. You don't have to be there yourself.

Our 4-step approach

Quote (5 min)

Complete the online form with number of panels, address and type of installation. Optionally add a photo. You will receive a customised price within 24 hours.

Scheduling (within 1-2 weeks)

We will call you to fix a date. In case of bad weather, we reschedule free of charge. You will receive confirmation by e-mail with time slot and operator name.

Implementation (2-4 hours for homes)

Our team will come by with osmosis water tank and robot or telescopic brush. You don't need to be at home. We capture before photos, clean each panel and conclude with after photos.

Report and advice

Within 48 hours, you will receive a PDF report by email with all the before/after photos, any finds during the inspection, and a recommendation for your next cleaning.

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What Belgian customers get out of cleaning

At Solarco, we have carried out an impressive range of cleaning projects: from residential and commercial roofs to large-scale solar parks. Our specialists provided shiny clean panels in towns and villages throughout Flanders, and are active in the rest of Belgium, the Netherlands and even France. Thanks to our mobile cleaning units and years of experience, we guarantee a thorough, sustainable approach every time - regardless of the size or location of your installation.

East Flanders (BE)

4000 modules

East Flanders (BE)

8000 modules

West Flanders (BE)

8500 modules

Limburg (BE)

<2000 modules

Brussels (BE)

<2500 modules

Brussels (BE)

2500 modules

Wast-Flanders (BE)

<2500 modules

North Rhine-Westphalia (DE)

2000 modules

Brussels (BE)

11000 modules

North Brabant (NL)

8000 modules

Brussels (BE)

200 modules

Namur (BE)

90,000 modules

Why Belgian companies choose Solarco

VCA & IPAF certified

All operators are trained in safe working at height and with aerial work platforms. VCA-VOL and IPAF 3a/3b certificates. No subcontractors.

Own robot park

Battery-powered cleaning robots from certified manufacturers. Capable of cleaning up to 55,000+ panels per deployment. No rental fees passed on.

Thermographic inspection included

Every commercial and industrial turn includes an IR scan for hot spots. You not only get clean panels, but also early detection of damage or faulty cells.

Fully insured

Liability insurance + material damage insurance up to €2.5 million per incident. If something happens, we are insured, not you.

Measurable reporting

Each report includes before/after photos, thermal images (commercial+), finds, and recommended frequency. Useful for warranty claims and audits.

No chemicals

Water and soft brushes only. Compliant with the requirements of all major module manufacturers (JinkoSolar, LONGi, Trina, Q CELLS, REC). Your manufacturer's warranty remains intact.

Advantages of professional solar panel cleaning at Solarco

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.

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Frequently asked questions about solar panel cleaning in Belgium

We work in all 10 Belgian provinces plus the Brussels Region. Our team speaks Dutch and French. For Walloon clients, we offer reporting and communication entirely in French via our French-language page.

Usually within 1 to 3 weeks of quote agreement, depending on season. From April to October is our busiest period - plan ahead preferably 3-4 weeks then. For urgent cases (e.g. visible damage or insurance issue), we can often visit within 5 working days.

Yes. As a Belgian company, you can fully deduct our invoice as a maintenance cost. The VAT (21%) is recoverable. For larger solar parks, cleaning is often included as an operational cost within the depreciation period.

Yes, we work with several Belgian installers who offer cleaning as a maintenance service to their customers. Feel free to call us if you are an installer and would like to discuss a white label collaboration.

Our liability and equipment insurance policies cover the whole of Belgium without limitation. The same conditions in Kortrijk as in Eupen.

This depends on your location and installation type. Residential in an urban area: every 1-2 years. Commercial in an industrial or rural area: annually. Agricultural or near coast: 1-2 times a year. Solar parks: 2 to 4 times a year depending on pollution pressure. With each cleaning, you will receive a recommendation based on what we find on site.

Yes. Multi-year maintenance contracts (2-5 years) are popular with companies and solar parks. You get price guarantee, priority in scheduling and typically 10-15% discount versus single turns.

We reschedule free of charge. Light drizzle is no problem - our robots and operators will continue working. In case of heavy rain, storm or wind >40 km/h, we reschedule to the next convenient day.

Sure. For Belgian companies with multiple sites (retail chains, logistics, agro), we like to plan a multi-site turn. This usually results in a staff discount because we have less travel time.

Yes. All Belgian municipalities are part of our catchment area, including enclaves and border regions.