Solar + New Roof: Should You Combine the Projects?
Re-roofing before or with solar saves money and avoids panel removal costs. Here is the timing math and how to coordinate both contractors.
The timing rule
If your roof has 10+ years left, solar first is fine. If it has under 10 years, re-roof first — removing and reinstalling panels later costs $2,000–$5,000 and risks damage. Combining both saves that cost and lets one crew coordinate flashings.
The combined-project savings
Doing roof + solar together avoids panel removal/reinstall fees, simplifies flashing and warranty coordination, and often gets better pricing (one contractor relationship). Solar installers can also advise on roof condition during the site survey.
How to coordinate
Get both quotes from companies that have done the combination, sequence the roof before panels, and put warranty coordination (roof + solar penetrations) in writing. A roof replaced at the same time should last as long as the panels — ~25 years.
FAQ
Should I replace my roof before solar?
Yes if it has under ~10 years left — removing and reinstalling panels later costs $2,000–$5,000. Combining projects saves money and aligns warranties.
How much does it cost to remove solar panels for a roof?
Typically $2,000–$5,000 to remove and reinstall, which combining roof + solar avoids entirely.
Can any roofer work around solar panels?
No — use a roofer experienced with solar flashings and a solar crew that coordinates. Get warranty terms in writing.
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Sources
- U.S. EIA — electricity rates by state, eia.gov/electricity/monthly
- NREL PVWatts v8 — solar production by location, pvwatts.nrel.gov
- DSIRE — state incentives and net metering, dsireusa.org
- See how every figure on this page is calculated — PVFig methodology.
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