As we head into the winter months, many homeowners ask: do solar panels need servicing? While these systems are mostly low-maintenance, periodic checks are still important. If you are wondering why solar panels need to be serviced, we explore the key benefits below.
Why do solar panels need servicing?
Without regular servicing, your panels are prone to damage and dirt buildup, which reduces efficiency. MCS’s Solar PV Standard (MIS 3002) states that “the actual checks required, and how frequent, will be dependent upon system size, the use/occupancy of the building, and ease of roof access along with specific requirements of the customer and any other stakeholders such as insurers.” In other words, there is no single fixed interval that suits every system. At Aspect, with over ten years of solar experience, we generally recommend an annual service visit – but always check your handover documentation and manufacturer guidance first.
- Improved Longevity: Regular servicing keeps the PV system in good condition, helping you generate maximum energy. MCS notes that solar panels can last over 25 years with proper care.
- Long-Term Savings: Catching issues early prevents unexpected failures and costly repairs down the line. Owner-level checks – such as monitoring your generation readings and looking for inverter warning lights – can flag problems between professional visits.
- Safety and Inverter Checks: While solar panels are safe, people often ask: do solar panel inverters need servicing too? A professional inspection covers inverter fault logs, ventilation, and secure mounting. It is worth noting that servicing and replacement are different things – industry guidance from NICEIC and the IET highlights that an inverter will usually need replacing after around 10-12 years, which is separate from routine checks carried out before that point.
- Optimal Battery Storage: If you use solar batteries to store excess energy, regular checks ensure your entire system performs at its best. Any roof-level or electrical work should always be carried out by a competent, MCS-accredited professional – never attempt to access the roof or open an inverter yourself.
