Critical Mass Solar

Critical Mass Solar is a Pepperell, Massachusetts solar outfit — rooftop panels, system design and the contracting that goes with them — owned by Freddy Petkus, and its Better Business Bureau page puts it at nine years in business. Two things the company leads with in its own listing are worth putting in a contract. It says its own crews do the work rather than subcontractors, and it says it takes no payment until the panels are installed and operating. Those are the company's own terms, not an outside finding, so ask for both in writing. On licensing, the BBB page carries registration #189939 from the Massachusetts Office of Consumer Affairs and Business Regulation; that number is the directory's entry, and it takes a minute to look it up yourself on the state register. A straightforward call if you want a local installer whose own crew is on your roof. Before signing, confirm that payment schedule, get the production estimate and the panel and workmanship warranties spelled out, and ask what happens if the roof needs repair after the array is up.