Should I replace my roof before installing solar?

Roof and Solar Timing · By Good Faith Energy · Last reviewed October 2026

Key takeaways

Solar panels can stay on a roof for decades, so the roof's remaining life matters.
Removing and reinstalling panels later adds cost and downtime.
Every installer should explain, in writing, who is responsible if a roof penetration leaks.

Check the roof first

Before designing a system, a good installer inspects the roof's age, condition and material. If the roof is near the end of its life, replacing it first usually avoids paying to remove and reinstall panels a few years later.

Doing the roof and solar together can also mean one schedule and one point of contact instead of coordinating two separate projects.

Signs the roof may need attention

Missing, curling or granule-shedding shingles
Past hail or wind damage that was never repaired
Soft spots, sagging or interior water stains
A roof approaching its expected lifespan

Roof penetration accountability

Mounting panels requires attaching hardware to the roof. Ask how the attachments are sealed, how long the workmanship on those penetrations is covered, and who you call if a leak appears near the array.

Frequently asked questions

Can panels be removed if I need roof repairs later?

Yes. Panels can be removed and reinstalled, but it adds cost and requires the system to be off during the work.

Does solar damage the roof?

A properly installed and sealed system should not. Workmanship and flashing quality are what matter, which is why written penetration coverage is important.

Have a question about your home?

Talk with a Good Faith Energy specialist for a free consultation.