How to compare solar companies on Long Island
The difference between the best solar company on Long Island and a merely cheap one usually shows up years after the install — when an inverter faults, a squirrel chews a wire, or you go to claim a warranty. Price is easy to compare on day one; accountability is what you're actually buying. Before you sign with any Long Island installer, ask these:
- Are you NABCEP-certified, and who specifically supervises my install?
- Do you subcontract the installation, or is it your own W-2 crew?
- Will you service my system if the original hardware fails in year 8?
- Is the NY-Sun rebate already applied in this quote, or added later?
- What does your workmanship + roof-penetration warranty actually cover?
- Can I see recent installs in my town, with real payback numbers?
If an installer can't give you a straight answer on subcontracting, warranty scope, or servicing older systems, that's your answer. Below are five worked examples of how a north-shore system gets sized — the starting point, the hardware, and the projected payback.