Replacing a Roof That Has Solar Panels in Massachusetts

The usual sequence

1. The solar installer shuts the system down, removes the panels and racking, and stores them.
2. The roofer tears off and replaces the roof, planning new flashing for each racking mount.
3. The solar installer reinstalls and seals the mounts and panels and reconnects the system.

A few companies do both jobs, but most homeowners coordinate two contractors. Get both to agree on dates before the old roof comes off, and check each one's Massachusetts credentials as described in our permits and licenses guide.

Owned or leased changes who can touch the panels

If you own the system, you choose who removes and reinstalls it, though the original installation paperwork may say who can work on it.

If you lease the panels or have a power purchase agreement, they belong to the solar company. Agreements usually require advance notice and say only the company or its approved installer may move them. Call them before you book the roofer.

Timing

Solar panels are expected to stay up for decades, longer than many asphalt roofs. If the roof under a planned array is more than about 15 years old, replacing it first usually makes sense. See how long roofs last in western Massachusetts.

If an existing roof is leaking under the panels, do not let it wait for spring. Leaks under an array are hard to trace, and in winter they feed ice dams. Cold-weather replacements are possible; see when to schedule a roof replacement.