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Solar Harvest

Can Damaged Solar Panels Be Repaired? A Complete Perth Guide

Aug 21, 2026 • 7 min read 

Solar panels are built to withstand Perth’s outdoor conditions, but storms, strong winds, falling branches, heat and moisture can still cause damage. Cracked glass, damaged wiring, inverter faults or a sudden drop in solar output may indicate a problem.

Not every damaged solar panel needs replacing. Some faults can be repaired, while severe physical or internal damage may require a new panel. A professional inspection can identify the cause and help you choose the safest and most cost-effective solution.

Can Damaged Solar Panels Be Repaired?

Yes, some solar panel problems can be repaired, but it depends on what has been damaged.

Issues involving external components, wiring, connectors or certain system components may be repairable. However, significant damage to the panel itself, including severely cracked glass, damaged solar cells or internal moisture damage, may require the panel to be replaced.

A professional inspection is important because reduced solar output does not automatically mean the panel is damaged. The issue could also be related to the inverter, wiring, connections, shading or another part of the system.

If you are looking for solar repairs Perth, a qualified solar professional can test the system and identify the actual cause of the problem before recommending a repair or replacement.

Quick answer:

  • Damaged cable or connector: Often repairable
  • Loose electrical connection: Usually repairable
  • Minor system fault: May be repairable
  • Severely cracked glass: Often requires replacement
  • Damaged internal solar cells: Replacement may be more practical
  • Major water or moisture damage: Professional assessment required
  • Faulty inverter: May be repairable or replaceable depending on the fault

What Causes Solar Panel Damage in Perth?

Solar panels remain exposed to the elements throughout the year. Perth’s climate provides excellent conditions for solar energy, but outdoor equipment still has to deal with heat, dust, storms and changing weather.

Common causes of solar panel damage include:

  • Strong winds and storms
  • Falling branches or other objects
  • Hail or severe weather
  • Cracked or broken glass
  • Damaged cables and connectors
  • Moisture entering damaged areas
  • Excessive heat and long-term exposure
  • Poor installation or loose components
  • General ageing and wear

Sometimes the damage is obvious. In other cases, your solar system may simply start producing less electricity than usual.

That is why monitoring your system’s performance is important.

What Should You Do If Your Solar Panel Is Cracked?

If you notice a crack in your solar panel, do not ignore it.

Solar panels rely on protective glass to shield their internal components from the weather. Once that protective layer is damaged, moisture can potentially enter the panel and cause further deterioration.

A cracked panel may experience:

  • Reduced electricity generation
  • Further internal damage
  • Moisture-related problems
  • Electrical faults
  • Reduced system efficiency
  • Shortened service life

Do not attempt to seal, remove or repair the panel yourself. Instead, arrange a professional inspection.

The technician can determine whether the damage is repairable or whether replacing the panel would provide a safer and more reliable long-term solution.

Can Cracked Solar Panel Glass Be Repaired?

This is one of the most common questions homeowners ask after discovering physical damage.

In most cases, seriously cracked solar panel glass is not simply repaired like ordinary household glass. The glass forms part of the panel’s protective construction, and damage can affect the cells and internal electrical components.

If the glass is badly cracked, the panel may need to be replaced rather than repaired.

However, the right decision depends on the condition of the entire panel. A professional should assess the damage before you purchase a replacement.

How Do You Know If Your Solar Panel Is Damaged?

Some solar panel problems are easy to see, while others only become noticeable through changes in system performance.

Look out for:

1. Cracked or Broken Glass

Visible cracks, chips or broken areas should be professionally assessed.

2. Lower Solar Production

If your system suddenly generates less electricity than normal, there may be a fault affecting the panel or another component.

3. Discolouration or Burn Marks

Unusual marks, dark areas or discolouration can indicate a potential problem.

4. Damaged Wiring

Loose, exposed or visibly damaged cables should never be handled without appropriate qualifications.

5. Inverter Warnings

An error message or warning from your inverter can indicate an electrical or system fault.

6. Unusual Monitoring Results

If your solar monitoring app shows an unexpected drop in production, investigate the change rather than assuming it is normal.

Solar Panel Repair vs Replacement: Which Is Better?

The decision between repair and replacement depends on the type of damage, the age of the panel, its condition, repair costs and any applicable warranty.

ProblemRepair or Replacement?
Loose connectionOften repairable
Damaged connectorOften repairable
Faulty wiringMay be repairable
Inverter faultRepair or replacement may be possible
Minor external issueProfessional assessment required
Severe cracked glassReplacement often preferred
Internal cell damageReplacement may be more practical
Extensive moisture damageReplacement may be required

Replacing a panel is not always the best answer. Likewise, repairing a severely damaged panel may not be cost-effective.

A professional assessment allows you to compare the condition and expected performance of the existing panel with the cost of replacement.

Does a Damaged Solar Panel Still Work?

Yes, a damaged panel may continue producing electricity, but that does not mean it is safe or suitable to keep using without inspection.

A damaged panel may generate less electricity than it did previously. Physical damage can also become worse over time, particularly if moisture reaches areas that were previously protected.

If you notice a sudden reduction in solar generation after a storm or physical impact, arrange an inspection rather than waiting for the system to fail completely.

Can Perth Weather Damage Solar Panels?

Perth’s sunny climate makes the region well suited to solar energy, but panels still have to withstand outdoor conditions.

Heat, dust, strong winds and severe storms can place stress on solar equipment. Falling branches or other debris can also cause direct physical damage.

After a major storm, it is worth checking your system’s monitoring data for unusual changes. From a safe position, you can also look for obvious signs of damage.

Never climb onto your roof or touch damaged solar equipment to inspect it yourself.

If you suspect storm damage, allow a qualified professional to assess the system.

What Should You Do If Your Solar System Suddenly Produces Less Power?

A drop in solar production does not always mean your panels are physically damaged.

Possible causes include:

  • Faulty panels
  • Inverter problems
  • Damaged wiring
  • Loose connections
  • Shading from trees or nearby structures
  • Dirt or debris
  • System faults
  • Changes in weather conditions

Before assuming you need new solar panels, have the system properly tested.

This can prevent you from spending money on replacement panels when the actual problem is somewhere else in the system.

When Should You Call a Solar Professional?

You should arrange a professional inspection if you notice:

  • Cracked or broken panel glass
  • A sudden drop in solar production
  • Damaged or exposed wiring
  • Loose-looking connections
  • Inverter error messages
  • Signs of moisture around damaged equipment
  • Burn marks or unusual discolouration
  • Damage after a severe storm
  • Unusual changes in your solar monitoring results

Solar systems contain electrical components that can remain hazardous even when the system appears switched off.

For this reason, DIY solar panel repairs are not recommended. A qualified professional can safely test the system and determine what needs to be repaired or replaced.

How Can You Prevent Solar Panel Damage?

You cannot prevent every type of damage, but regular monitoring and maintenance can help you identify problems early.

Monitor Your Solar Production

Keep an eye on your energy production through your inverter or monitoring platform. A sudden change can be an early warning sign.

Check From the Ground

From a safe location, look for obvious cracks, broken glass or visible debris. Do not climb onto the roof to inspect the panels.

Keep Nearby Trees Under Control

Branches can damage panels during strong winds and storms. Keeping trees around your property appropriately maintained can reduce this risk.

Arrange Professional Maintenance

Regular inspections can help identify problems with panels, wiring, connectors and other system components before they become more serious.

Act Quickly After Storms

If your solar system behaves differently after severe weather, arrange an inspection instead of waiting for the problem to worsen.

Is It Worth Repairing Old Solar Panels?

The age of your solar panels is an important consideration.

If an older panel develops a serious fault, replacement may make more financial sense than paying for an extensive repair. On the other hand, a relatively new panel with a minor issue may be worth repairing.

Before making a decision, consider:

  • The panel’s age
  • The extent of the damage
  • Repair costs
  • Replacement costs
  • Expected future performance
  • Manufacturer warranty
  • Compatibility with the rest of your solar system

A professional can help you compare these factors and choose the most practical option for your property.

Does Solar Panel Damage Affect the Rest of the System?

It can.

A damaged panel may not be an isolated problem. Faults involving wiring, connectors or electrical components can potentially affect system performance and should be investigated promptly.

This is another reason why it is better to diagnose the problem before deciding to replace individual panels.

A proper inspection should consider the whole solar system, not just the visibly damaged panel.

What About Solar Panel Warranty?

Before paying for repairs or replacement, check whether your panel or another solar component is still covered by its manufacturer’s warranty.

Warranty coverage can vary depending on the manufacturer, product, type of fault and circumstances surrounding the damage.

Keep your installation documents and product information where possible. A qualified solar professional can help identify the relevant equipment and advise you on the next step.

Final Thoughts: Can Damaged Solar Panels Be Repaired?

Yes, damaged solar panels can sometimes be repaired, but not every type of damage is repairable.

Problems involving cables, connectors and certain system components may be repairable, while severe glass damage, internal cell damage or extensive moisture problems may make replacement a better option.

For Perth homeowners, the most important step is not to guess whether your panel needs replacing. If you notice cracks, storm damage, unusual performance or a sudden drop in solar production, arrange a professional inspection.

Getting the problem diagnosed early can help you avoid unnecessary replacement costs, protect your solar investment and keep your system operating as efficiently as possible. If you need bond cleaning in Perth, try Perth Bond Cleaning.

Frequently Asked Questions

Can a cracked solar panel be repaired?

It depends on the extent and type of damage. Minor faults affecting connections or other components may be repairable, while severe glass or internal cell damage may require panel replacement.

How much does it cost to repair a damaged solar panel in Perth?

The cost depends on the fault, equipment, labour required and whether the panel or another component needs replacement. The best way to determine the cost is to have the system professionally inspected first.

Can I repair a cracked solar panel myself?

No. Solar panels and their electrical connections can remain active in daylight. DIY repairs can create serious electrical and safety risks. Solar repairs should be handled by an appropriately qualified professional.

Should I replace a damaged solar panel?

Not necessarily. A professional should assess the damage, panel age, warranty and repair cost before you decide whether repair or replacement is the better option.

Can damaged solar panels still generate electricity?

Yes, a damaged panel may continue producing electricity, but its performance can be reduced. Visible damage should be professionally inspected even if the system is still generating power.

Can storms damage solar panels?

Yes. Strong winds, falling branches, debris and severe weather can cause physical damage to panels and other solar system components. Checking your system’s performance after a major storm can help identify problems early.

How do I know if my solar panels are not working properly?

A sudden drop in energy production, inverter warnings, visible cracks, damaged wiring, unusual monitoring results or physical changes to the panels can indicate a potential problem.

Is it better to repair or replace a damaged solar panel?

It depends on the damage and the condition of the system. Minor faults may be repairable, while severe physical or internal damage may make replacement more practical.

What should I do if my solar panels are damaged after a storm?

Do not touch damaged panels, wiring or electrical components. Monitor your system if possible and arrange a professional inspection to determine whether the damage can be repaired or requires replacement.