Brentwood, CA · East Contra Costa
Solar Panel Repair in Brentwood, CA
A cracked panel, a string that has gone dark, or a system that stopped producing. Here is what repair usually involves, what tends to cause it, and how to get a quote from an independent solar contractor.
Cited cost ranges · No obligation
What are you seeing?
Production dropped to zero
The monitoring app or the inverter display shows nothing coming from the array.
One panel or string is low
Most of the system works, but one panel or one group of panels is well below the rest.
Monitoring says offline
The system may still be producing and only the data connection is down. A contractor can tell which.
Visible damage
Cracked glass, a burn mark or a loose cable. Treat burn marks or melted parts as a safety issue: stay clear and call a licensed contractor.

Common causes of solar panel problems
- Damaged panels. Cracked glass from impact or stress, or a panel that has stopped performing as it should.
- Wiring and connectors. Loose, corroded or damaged connections between panels, or between the array and the inverter.
- Shading that was not there before. A tree or a new structure that now blocks part of the array.
- An inverter fault. The panels may be fine while the inverter is the part that has failed. See solar inverter repair.
- Monitoring and communication dropouts. A gateway or Wi-Fi connection that is down makes a working system look dead.
Repair or replace a panel?
That is the contractor's call after seeing the panel. A panel with cracked glass is a safety and moisture concern, so expect the conversation to be about replacing it. Ask whether a replacement panel will match the existing ones in size and rating, and whether the old panels are still under warranty.
What a diagnostic visit usually covers
- A visual check of the panels, wiring and mounting.
- A look at the inverter status and the monitoring data.
- Electrical testing of the array to find which panel, string or connection is at fault.
- A written estimate for the repair, and whether a roofer is needed to reach the area.
Ask in advance whether there is a charge for the diagnostic visit and whether it is credited toward the repair.
Warranties
Panels, inverters and installation workmanship usually carry separate warranties from different companies, and the terms differ by product and contract. Find your paperwork before a repair, and ask any contractor whether their work could affect a warranty. If the system is leased, the provider may be responsible for repairs and may not allow anyone else to do them (see leased solar).
What this page does not cover
Panel cleaning, new solar installation and financing are different services and are not covered here. If a repair involves removing panels for a roof job, see solar panel removal for a roof replacement.
Check any contractor, including one you find here
- Ask for the contractor's CSLB license number and look it up at cslb.ca.gov. The CSLB site also explains when a California contractor license is required.
- Get the quote in writing, itemized: the number of panels, removal and storage, new flashing and hardware, reinstall, a production check, the permit, and the schedule.
- Be wary of large deposits or cash-only terms. Ask who is responsible if a panel is damaged during removal and who stands behind roof attachments afterward.
- If the roof and the solar are separate contractors, ask who coordinates the schedule and how long the system will be off.
This site is an independent referral service, not a contractor. Your request goes to an independent local solar contractor, who gives the quote and does the work. How this works
Common questions
Can you repair a solar panel?
Sometimes. Wiring, connectors and some other faults can be repaired. A panel with cracked glass is usually a replacement conversation. The contractor decides after inspecting it.
How much does it cost to repair a broken solar panel?
It depends on what failed, how many panels are affected and whether a roofer is needed. We have not found a source for Brentwood repair prices that we can cite, so we do not publish a number. The contractor gives a written estimate after diagnosing it.
My system stopped producing. What should I check first?
Look at the monitoring app and the inverter's status light or display, and note any fault code or message. Do not open equipment or touch the array. Give what you saw to a licensed contractor. If you see burning, melting or smoke, treat it as an emergency.
Does solar need maintenance?
Solar systems have no moving parts, but they are still worth a periodic look at the monitoring data to catch a drop in production. Check your manufacturer's and installer's documentation for their recommendations.
Talk to a local solar pro
Solar on the roof and a job to get done?
Call now or send a 30-second request. You'll be connected with an independent local solar contractor for a quote.