The duration depends on the total length and height of your walls, the level of soiling, and accessibility. An average residential property with 50-70 meters of standard height precast walls typically requires 3-5 hours for complete cleaning.
When performed by experienced professionals using proper equipment and techniques, pressure washing is completely safe for precast concrete walls. We use appropriate pressure settings and methods specifically for precast concrete to ensure thorough cleaning without surface damage.
Most properties benefit from annual cleaning. However, properties with heavy tree cover, in high-pollution areas, or where appearance is particularly important may require service twice yearly.
Yes, we take precautions to protect landscaping including pre-watering sensitive plants, using biodegradable cleaning solutions, directing water flow away from gardens, and rinsing plants after completion if needed.
We successfully remove the vast majority of common stains including biological growth, pollution, rust, and mineral deposits. Some deeply penetrated stains or those from certain chemicals may require special treatment. We'll assess your specific situation during our free evaluation.
Normal tap water contains minerals like calcium and magnesium that leave hard-water deposits and streaks on the glass, reducing efficiency. Soap or dishwashing liquid leaves a sticky film that attracts dust and pollen, and can void your solar panel manufacturer warranty. We use specialized multi-stage deionized pure water filtration that lifts grime without residues and dries streak-free.
In Gauteng, we recommend cleaning solar panels at least twice a year. The most critical time is right after the dry winter season (around August/September) when thick dust and soot have accumulated on the panels, and again mid-summer to clear away bird droppings and pollen.
Yes, absolutely. Thick Gauteng dust, soot, and bird droppings can block sunlight and reduce your system's efficiency by 20% to 30%. Cleaning them restores maximum light absorption, leading to faster battery charging and higher daily power production.
We avoid cleaning solar panels during the hottest times of the day (midday) to prevent thermal shock, which can crack the hot glass when contacted by cooler water. We schedule solar cleaning for early mornings or late afternoons. Rain does not wash away sticky diesel soot or baked-on bird droppings, so professional cleaning is still required.
No, you should never walk on solar panels. Walking on them causes invisible micro-cracks in the silicon cells, which leads to cell degradation, hot spots, and permanent damage. We use lightweight, telescopic carbon-fiber water-fed poles to clean the panels safely from roof edges or ladders without putting any physical weight on the panels.
Yes, we offer weekend service to accommodate residential clients who prefer service when they're home or who have busy weekday schedules.
Yes, we can accommodate urgent cleaning needs such as pre-event preparation or addressing sudden appearance issues. Contact us to discuss your timeline and we'll do our best to assist.
We accept cash, electronic funds transfer (EFT), and card payments for your convenience.