Solar Panel Removal and Reinstall When the Roof Is Replaced
When a roof needs replacing and the solar system still has years of life, the panels have to come off and go back on. This is called detach and reset. The panels, racking and wiring are taken down, labelled, stored safely, and reinstalled on the new roof once the roofer is done.
Describe the job and add your city. Free to request, no obligation.
Timing is the part that goes wrong most often. The panels cannot go back until the new roof is complete and cured, and the system stays off in the meantime, so every extra day is lost production. Booking the solar crew and the roofer together, with dates that line up, keeps the gap short.
A reinstall is also a chance to fix small problems. New flashing goes under each mount, old connectors can be swapped, and the system is tested before it is switched back on. In many places the reinstall needs its own permit and a utility notice, which the quote should account for.
What the work includes
- Shutdown of the system and safe disconnection of the wiring
- Removal of panels, rails and attachments, with parts labelled
- Safe storage of panels on site or off site until the roof is ready
- Coordination of dates with your roofing contractor
- Reinstallation of racking with new flashing and sealed attachments
- Reconnection of wiring, inverter and monitoring
- Testing of each string and a full system performance check
- Permit and utility notification where the local rules require them
When you need panels taken off and reinstalled
Your roofer says the shingles, membrane or deck must be replaced under the array
Leaks have appeared around mounts or under the panels
A roof inspection shows the surface is near the end of its life
You are adding a dormer, skylight or roof extension in the same area
Storm damage affects both the roof and some of the panels
You are moving the array to a different part of the roof
How the work goes, step by step
Share the roofing plan
Tell the specialist what roof work is planned, who the roofer is and the target dates.
Pre-removal review
The array is photographed and its layout recorded, so it can go back exactly as it was.
Written quote
You receive the cost for removal, storage and reinstall, with permits and any parts to replace.
Removal and storage
Panels and wiring are disconnected, labelled and stored while the roof is replaced.
Reinstall and test
Racking is rebuilt on the new roof with fresh flashing, wiring is reconnected and the system is tested.
What changes the price
- Number of panels
- More panels take more labour to remove, store and reinstall.
- Roof type
- Tile, slate and metal roofs need different attachment details and often more time.
- Storage needs
- Panels left on site cost less to handle than those moved to storage.
- Racking condition
- Corroded or damaged parts may need replacing instead of reusing.
- Permits and inspection
- Many areas require a permit and an inspection on reinstall.
- Coordination with the roofer
- Delays on the roofing side can extend the time the system is down.
What a good quote spells out
- Who is responsible for any damage to panels during removal, storage and reinstall
- How flashing and roof penetrations are handled with the roofing contractor's work
- Whether any mounting parts are replaced as part of the price
- An estimate of how many days the system will be offline
- Permit and utility steps for the reinstall
Panel Removal & Reinstall: questions people ask
Can solar panels be removed and put back on a new roof?
Yes. It is a normal job when the roof needs replacing before the solar system reaches the end of its life.
How long are solar panels off during a re-roof?
It depends on the roof and the weather. A typical house may take a week or two end to end, but the schedule is set by the roofer and the permits.
Should the roof be replaced before installing solar?
If the roof has less than ten or so years left, replacing it first usually saves money. Taking panels off later adds a separate cost.
Does reinstalling panels affect their warranty?
Handling can affect warranty terms if panels are damaged. Ask who is responsible for the panels while they are down, and get it in writing.
Other Alumen services
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