Frequently Asked Questions
- All
- Commercial Solar Maintenance & Large Systems
- General Solar Maintenance
- Pricing
- Reporting & System Insights
- Residential Solar Panel Cleaning & Maintenance
- Safety, Compliance & Expertise
- Service Area
- Why Choose Eres Group
At Eres Group, a solar service goes beyond basic cleaning. We provide a structured service that includes professional solar panel cleaning, a visual system inspection, and performance-focused checks to ensure your system is operating safely and efficiently.
Our approach is designed to protect long-term performance, not just improve appearance. If you’re looking for a reliable way to maintain your system properly, this is where we can help.
Yes. While solar systems are often considered low maintenance, they are not maintenance-free. Over time, environmental build-up such as dust, salt, and bird activity can reduce output and contribute to system faults if left unchecked.
Regular servicing ensures your system continues to perform as expected and helps avoid more costly issues down the line.
For most homes across Sydney, we recommend cleaning every 6–12 months. Properties exposed to higher levels of dust, salt, or bird activity may require more frequent servicing.
If you’re unsure what your system needs, we’re happy to provide guidance based on your location and setup.
No. Rain may remove loose dust, but it does not effectively clean salt residue, bird droppings, or built-up grime, all of which can significantly impact performance.
A professional clean ensures your panels are properly maintained and operating at their best.
Not when done professionally. We use purified water systems and specialised equipment designed specifically for solar panels, ensuring a safe, non-abrasive clean with no residue.
Proper technique is key, which is why using a specialist service is important.
In most cases, no. As long as we have safe access, we can complete the service and provide a full report afterwards.
We’ll confirm all access requirements ahead of time to make the process as straightforward as possible.
Typically between 1–2 hours, depending on system size, access, and condition.
We aim to complete all works efficiently while maintaining a high standard of care.
Yes. We work with commercial properties, strata buildings, and industrial sites across Sydney, providing structured maintenance and cleaning for larger-scale solar systems.
If you’re responsible for managing a solar asset, we can provide a reliable, ongoing maintenance solution.
Commercial systems require a more considered approach due to:
- Roof access and safety requirements
- System size and layout
- Compliance and reporting expectations
- Coordination with building managers or tenants
Each site is assessed individually to ensure safe access, efficient execution, and minimal disruption to operations.
Yes. We plan access carefully and coordinate appropriate equipment and safety measures to ensure all works are carried out safely and in line with site requirements.
We regularly work on a range of system sizes and building types across Sydney.
Solar systems are live electrical assets, often installed in high-risk environments such as rooftops. Safety is critical.
At Eres Group, all works are carried out with a strong focus on safety, including site-specific risk assessments and safe access procedures. Our services are delivered in conjunction with licensed electricians, ensuring all work is compliant with Australian standards and carried out correctly.
Solar panels are part of an electrical system, not just a surface to be cleaned. Incorrect methods can lead to damage, reduced performance, or safety risks.
A professional solar service ensures both correct cleaning and a broader understanding of system performance and condition. Giving you confidence everything is being handled properly.
Yes. Every service includes a clear summary of findings, outlining system condition, any visible issues, and recommendations where required.
This gives you a clear understanding of how your system is performing and whether any action is needed.
A report provides insight into your solar system that a basic clean simply does not.
It allows you to:
- Identify potential issues early
- Track system condition over time
- Support compliance and asset management (particularly for commercial properties)
- Make informed decisions about maintenance or repairs
For many of our clients, this visibility is just as valuable as the clean itself.
Pricing depends on system size, access, roof type, and condition. We provide clear, upfront pricing before any work is carried out.
If you’d like a tailored quote, we can quickly assess your system and provide an accurate estimate.
Key factors include:
- Number of panels
- Roof access and pitch
- Level of build-up or contamination
- System complexity
We always aim to provide transparent pricing aligned with the scope of work required.
We specialise in the ongoing service and maintenance of solar systems, not just cleaning.
Our approach is structured, safety-focused, and designed to protect performance and reliability over time. We combine hands-on experience with a professional, methodical process, giving you confidence your system is being properly maintained.
If you’re looking for a long-term partner to manage your solar asset, we’re here to help.
Yes. We operate with appropriate insurances and follow strict safety procedures. All work is carried out in conjunction with licensed electricians, ensuring full compliance with Australian standards and giving you confidence everything is completed correctly.
We service Sydney-wide. If you’re unsure whether we cover your location, feel free to get in touch and our team will be happy to assist.
