Rain water carries minerals and sediment that leave residue on panels rather than cleaning them. Window Washing Bros uses deionized water and professional equipment to remove buildup rain cannot, restoring measurable output loss that directly affects monthly energy bills.
Window Washing Bros begins with a pre-cleaning inspection for cracks or damage, then removes debris manually, cleans panels using soft brushes and deionized water, squeegee-dries every surface, and provides before-and-after documentation confirming the completed service.
We uses only non-abrasive brushes, deionized water, and low-pressure application methods specifically selected to comply with manufacturer cleaning guidelines. No harsh chemicals or high-pressure washing are used, your panels and warranty remain fully protected throughout.
Dust, bird droppings, and debris accumulation can reduce solar panel efficiency by 20–30%. After a professional clean by Window Washing Bros, most homeowners see a measurable improvement in output that reflects directly on their next utility bill.
Window Washing Bros recommends cleaning every 3–6 months for most residential systems. Homeowners who enroll in recurring cleaning plans receive automatic scheduling, ensuring their panels stay consistently clean without having to monitor or rebook the service themselves.
San Fernando Valley’s Santa Ana winds deposit dust and ash onto panels rapidly, while summer heat bakes buildup onto glass. Window Washing Bros recommends cleaning every 3 months for Valley properties, more frequently than the national average suggests.
Every Window Washing Bros technician is background-checked, trained in rooftop safety, and fully insured. With 8 years of experience and a 5/5 rating from 45+ verified reviews, the crew brings a documented, trusted track record to every job.
Bird-proofing and pest mitigation are offered by Window Washing Bros as part of their comprehensive solar panel service. Nesting beneath panels causes structural damage and debris buildup that regular cleaning cannot fix, addressing it directly protects the system long-term.
Window Washing Bros documents all damage findings with photographs and a written report, then notifies the property owner immediately. Cleaning does not proceed where pre-existing damage could be worsened, protecting both the panel system and the customer’s investment fully.
Window Washing Bros services commercial rooftop solar installations across the San Fernando Valley, including large-scale systems on apartment buildings, office complexes, and retail properties. Commercial-grade equipment and a trained crew ensure the job is completed safely and efficiently at any scale.
