Solar panel installation, with one contractor accountable

The installation itself is usually one to three days. The project is considerably longer, and the difference is approvals rather than labour. A plan set has to be drawn, a building permit issued, a separate utility interconnection application approved, an inspection passed and permission to operate granted. Each of those is controlled by a third party working to its own timetable, which is why an honest answer is a range for your specific jurisdiction rather than a single number. Anyone quoting a firm completion date before the permit is filed is quoting a hope.

Because a grid-connected generating system needs two separate authorisations that come after the equipment is mounted. The jurisdiction has to inspect and pass the work, and the utility has to grant permission to operate — the point at which they accept a system exporting onto their network. Running before permission to operate is granted can breach the interconnection agreement. The gap between a physically finished system and a legally operating one is normal, and it is the stage most likely to be under-explained at the point of sale.

Sometimes, and it is decided by calculation rather than by opinion. An array backfeeding an existing panel has to satisfy the code limit on how much can be fed into that busbar, which depends on the panel's rating and the main breaker rather than on the size of your house. Where the calculation does not clear, a service upgrade is one answer but rarely the only one: a main breaker derate, a supply-side connection, a line-side tap or load management can each resolve it. The alternatives are worth asking about, because a panel upgrade is usually the largest single addition to a residential project and often involves a utility disconnect of its own.

It is worth resolving before the array goes up rather than after. Removing and reinstalling a system later to replace the roof underneath it is its own project with its own cost, and it is entirely avoidable by sequencing the roof first. A survey establishes the covering, the number of layers and the approximate age, and that is the point to have the conversation. Roof work is separate scope with its own licence considerations and its own warranty, so it should appear in the written scope with its own price rather than as an assurance.

A penetration that leaks is workmanship, and the workmanship obligation sits with the contracting party. Because Seamless Home contracts as the licensed contractor and engages the installing crew as its subcontractor, that obligation does not depend on the crew still being in business. It is worth distinguishing from an equipment fault, which is a manufacturer claim on the product, and from a pre-existing roof condition, which is neither. A written scope that records the roof's condition at survey is what makes that distinction possible later.

No. The federal Residential Clean Energy Credit under Section 25D — the 30% credit a homeowner claimed on a system they bought and owned — applied to property installed through December 31, 2025 and is not available for property placed in service after that date. This matters because the 30% figure is still repeated widely and was true until recently. Business-side credits are a different matter and sit with the owner of the system, which in a third-party-owned lease or power purchase structure is the provider rather than you. State, local and utility incentives are unaffected by the federal change, vary widely by jurisdiction, and should be confirmed with the administering authority. Seamless Home does not provide tax advice.

They are different products rather than better and worse versions of one. Buying, with cash or a loan, makes you the owner: you hold the asset, the equipment warranties are yours to claim, and you carry the maintenance question. A third-party-owned lease or power purchase agreement means the provider owns the equipment on your roof and you pay for the arrangement rather than the asset, which changes what happens when you sell the house and who claims any owner-side incentive. The one thing worth checking in either case is what the agreement says about transfer on sale, because that is the term homeowners most often discover late.