Can Solar Panels Be Repaired or Do They Need Replacing?

When your solar panels stop performing at their best, the first question most homeowners ask is:
“Can my solar panels be repaired, or do they need to be replaced?”

The answer depends on the age, condition, and cause of the problem. Understanding when a repair makes sense—and when a full replacement offers better long-term value—can save you thousands.

Our Clean Energy Council accredited electricians have been repairing, upgrading, and maintaining solar systems across Sydney since 1992, giving thousands of families peace of mind and reliable solar savings.

Solar panels are designed to last 20–25 years or more, but like any system exposed to the elements, they can experience issues such as:

• Cracked or damaged panels

• Faulty wiring or connectors

• Inverter malfunctions

• Poor energy output due to age or shading

• Storm or hail damage

In many cases, these issues can be repaired quickly and affordably, restoring your system’s performance without needing a complete replacement.

Repairs are usually the most cost-effective choice when:

• Only one or two panels are affected

• The inverter or wiring is the main issue (not the panels themselves)

• Your system is under 10 years old and still covered by warranty

• Damage is minor (e.g. loose connectors, cracked glass, or shading issues)

Repairing instead of replacing can extend your system’s lifespan, improve performance, and keep your existing investment working harder for you.

Sometimes, replacement is the smarter long-term decision. Consider upgrading your panels if:

• The system is over 10–15 years old

• There are multiple failing panels or widespread degradation

• You’ve had recurring issues with the same components

• You’re planning to add a solar battery and need more efficient panels

• The cost of repairs approaches half the price of a new system

Modern solar panels are more efficient and compact, so upgrading could increase your energy generation and reduce your payback period.

• Repairs: Can extend your system’s life by up to 5–10 years, provided components are in good condition.

• Replacements: Reset your warranty and performance expectations with new technology, ensuring optimal efficiency for the next 20+ years.

At MPV Solar, we’ve been helping Sydney homeowners since 1992 with:

• Expert diagnostics and performance testing

• Professional solar panel repairs and replacements

• Honest advice on the most cost-effective solution

• CEC-accredited installers and no subcontractors

Whether your system just needs a quick fix or a full upgrade, we’ll help you make the right call for your budget and energy goals.

Unsure whether to repair or replace your solar panels?

Book a free system inspection today with MPV Solar.

We’ll assess your system, outline your options, and help you make a decision that delivers the best long-term return on investment.

Call 98170333 or complete the form below to get started.