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Bringing in a mounting crew, an electrician, or a roofer means agreeing who owns which risk on the roof. Answer a few questions, then download or e-sign the finished agreement.
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A solar panel subcontractor agreement sets terms between a solar contractor and a crew doing part of an install. It records the scope, the pay, and who carries which risk on site.
Solar work splits across trades. Racking and module mounting, electrical tie-in, roof repair, and commissioning often sit with different specialists on the same roof.
That split is exactly why the paperwork matters. When two crews touch one roof, a leak six months later needs a document that already assigns blame.
The agreement runs alongside your homeowner contract rather than replacing it. Your customer holds you responsible, so this document decides what you can pass down.
It carries limits worth naming too. The agreement binds you and the subcontractor. However, it does not change what your customer contract already promises, so read both together before signing either.
Most residential and light commercial installs use subcontractors somewhere in the chain.
Common arrangements include:
Each of these carries different risk. Electrical work and roof penetrations sit at the sharp end, so those agreements deserve the closest attention.
Volume shapes the terms as well. A crew doing one install a week needs different arrangements from one running a queue of jobs across a season.
Tip: Write one agreement per trade rather than one covering everybody. Shared scope reads fine on paper, then falls apart the moment two crews blame each other.
Solar scopes slip because roofs surprise people. So write the scope tightly, then write the process for changing it. This is where a solar panel subcontractor agreement earns its money.
Name the tasks plainly: array layout, rail count, module count, conduit runs, inverter placement. Vague phrases such as full install invite disputes later.
Say what happens when a crew finds rotten decking, undersized service, or unexpected obstructions. Somebody has to decide who pays and who stops work.
Require written approval before extra work starts. Also name who can approve it, because a verbal yes from a homeowner is not your authorization.
List who furnishes modules, racking, flashing, fasteners, and conduit. Then say who bears the cost of damaged or missing material.
Give the target dates and the crew the subcontractor commits. Solar schedules stack, so one late crew delays inspection and interconnection too.
A finished array is not yet a working array. Permitting and sign-off duties belong in writing, because they decide when your customer actually switches on.
Decide and record:
A solar panel subcontractor agreement that skips these duties leaves them with whoever notices last. Failed inspections are the real cost here. A second visit burns a day and pushes back the customer’s sign-off. So state plainly that correction work sits with the subcontractor when the fault is theirs.
Requirements differ from one authority to the next. So confirm current rules with your local building department and the serving utility before you commit to dates.
Roof penetrations cause more solar disputes than any other item. Handle them head on.
State how long the subcontractor stands behind their work and what that covers. Also say how a callback gets reported and how quickly someone responds.
Assign responsibility for flashing, sealing, and any leak traced to a penetration. Where an existing roof warranty is in play, say who confirms the method will not void it.
Equipment warranties belong to the manufacturer, not to either of you. Make clear that poor installation can void them, and who answers if that happens.
Avoid promising output figures on the subcontractor’s behalf. Where your customer contract includes production estimates, keep those with whoever made them.
Define what finished means, who signs it off, and what retainage is held until then. Agree the window for clearing punch items as well, since an open list stalls final payment for both of you.
Tip: Photograph every penetration before the modules go on. Nothing settles a leak argument faster than a dated picture of the flashing underneath.
Solar sits where roofing meets electrical, and both trades carry licensing and safety obligations.
Licensing rules for electrical and contracting work vary by state, and sometimes by city. So verify credentials with your state’s licensing authority rather than accepting a copy at face value.
The agreement should also require:
Ask for certificates before the crew arrives. Then set a duty to tell you if coverage lapses mid-project, since a gap discovered after an accident helps nobody.
Site conduct deserves a line too. Crews work on occupied homes, so set expectations on parking, debris, noise, and how the team speaks to a customer.
Both parties should execute the same version before mobilization, and each keeps a copy. Electronic signatures suit this well, because crews and coordinators rarely sit in one office. Your solar panel subcontractor agreement template is ready to customize now. Get it signed before the first ladder goes up.
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