Protect your roof from moss, lichen, and water leaks. A clean, treated roof can extend its lifespan by 10 to 15 years.
Your roof is your home’s first line of defense against the elements. However, moss, lichen, and algae gradually build up on it, damaging the tiles and leading to water leaks. A neglected roof ages prematurely—and repair bills pile up.
SDC Ecogroup offers a comprehensive tile roof cleaning and treatment service in Belgium. Our 3-step approach—inspection, professional low-pressure cleaning, and application of a water-repellent treatment—guarantees long-lasting results without risking damage to your tiles.
Thanks to our long-lasting water-repellent treatment, your roof is protected for 5 to 10 years against rain, frost, UV rays, and moss regrowth. Our VCA-certified teams serve Brussels, Walloon and Flemish Brabant, and all of Belgium.
Moss constantly traps moisture against your roof tiles. Over time, it seeps into the joints, causes micro-cracks, and accelerates the deterioration of the materials. Lichens, which are even more persistent, attach themselves directly to the surface of the tiles and slowly erode them.
A dirty roof is a leaky roof. Untreated moss creates pathways for rainwater, allowing it to seep into the roof structure and insulation. The result: moisture, mold, and costly structural damage.
A clean, well-maintained roof directly adds value to your property. When selling or getting an appraisal, the condition of the roof is a key factor for buyers and real estate professionals.
A professional water-repellent treatment applied after cleaning deeply waterproofs the tiles and prevents moss and lichen from growing back for 5 to 10 years. It’s the best investment you can make to protect your roof for the long term.
Before beginning any work, our technicians conduct a thorough inspection of your roof. They assess the overall condition of the shingles, identify the areas most affected by moss and lichen, locate any cracked or displaced shingles, and provide you with a diagnostic report.
We use a low-pressure cleaning technique designed specifically for roof tiles, unlike traditional high-pressure cleaning, which can crack or dislodge tiles. Our method thoroughly removes moss, lichen, algae, and dirt without damaging the materials.
Once the roof is clean and dry, we apply a certified professional water-repellent product using a uniform spray. This treatment penetrates deep into the tiles to create a long-lasting waterproof barrier.
The water-repellent treatment is a waterproofing solution that penetrates the pores of the shingles to create an invisible barrier against water. Unlike a simple surface sealant, it works deep within the shingles without altering the appearance of your roof.
Once applied, the water-repellent product creates a beading effect: rainwater rolls off the surface without penetrating the tiles. Dirt, pollen, and dust adhere less easily to a water-repellent surface, which significantly slows the regrowth of moss.
We use only certified, environmentally friendly professional-grade products that are suitable for the type of roof. For each project, we select the appropriate product based on the material, exposure, and condition of the surface.
Prices vary depending on the roof area, the type of tiles, accessibility, and the condition of the roof. As a general guide, expect to pay starting at €12/m² for a combined cleaning and waterproofing service. Contact us for a free, personalized quote within 24 hours.
A professional water-repellent treatment provides protection for 5 to 10 years, depending on the quality of the product used, the type of roof tile, exposure to the elements, and the immediate surroundings (proximity to trees, wet areas, etc.). We recommend an inspection every 5 years.
That is why we do not use conventional high-pressure cleaning on roofs. We work at low pressure with a flow rate tailored to the type of roof tile. This technique effectively removes moss and lichen without risking damage to or displacement of the tiles.
Ideally in the spring (March–May) or fall (September–October), when temperatures are mild and plant growth is less active. Avoid applying the water repellent during periods of frost. In practice, we perform this service year-round, depending on weather conditions.
No. The professional water-repellent products we use are colorless and penetrate the surface. They do not alter the appearance of your roof. Your roof will look exactly the same—just protected.
Moss removal involves a specific chemical treatment (algaecide/biocide) that gradually kills and loosens the moss over a period of 2 to 6 months. High-pressure cleaning (or low-pressure cleaning for roofs) mechanically removes the buildup. We combine both techniques based on the condition of your roof to achieve the best possible results.
Our VCA-certified teams serve customers throughout Belgium. Get a free, no-obligation quote within 24 hours.
