Why Hire a Pro? Mold, dust, dirt, and debris can build up on solar panels and become difficult to remove. Our professional cleaning service gives your panels a thorough scrub using industry best practices that ensure no damage is done. We use ultra-pure deionized water treated through reverse osmosis, leaving a spotless, streak-free finish. Tap water, on the other hand, leaves behind minerals that reduce efficiency by blocking sunlight and attracting more dirt. And let’s face it—getting up on your roof can be dangerous. Leave it to the pros.