Not reliably - especially in Arizona. Rainwater here contains minerals that leave behind spots and residue as it evaporates. On top of that, the Valley averages fewer than 8 inches of rain per year, and a light sprinkle doesn't have enough force to dislodge the compacted dust, bird droppings, and debris that build up between cleanings. Professional cleaning with purified water is the only method that truly restores panel output.

Homeowners typically see a 15–25% improvement in energy output after a professional cleaning. That means lower electricity bills, better ROI on your solar investment, and a longer system lifespan. Regular cleanings also help you catch issues early - cracked panels, corroded connections, or pest damage before they cause costly outages or void your warranty.

A critter guard is a steel mesh barrier installed around the perimeter of your solar panels, sealing the gap between the panels and your roof. Without one, that shaded gap is a prime nesting spot for pigeons, sparrows, squirrels, and rats. Once they move in, they chew wiring, leave corrosive droppings on panels, and can cause thousands of dollars in roof and electrical damage. In the Phoenix metro, pigeon activity under solar panels is extremely common - if you have solar, a critter guard is one of the best protection investments you can make.

We serve the greater Phoenix metro area, including Phoenix, Scottsdale, Mesa, Chandler, Gilbert, Tempe, Glendale, Peoria, Surprise, Queen Creek, Avondale, Goodyear. Not sure if we cover your area? Give us a call at 833-317-2968 and we'll let you know.