How to Choose the Right Roofing Contractor in New Jersey

Licensing and insurance are the floor, not the ceiling

In New Jersey, any contractor offering home improvement work has to be registered with the state (HIC license). Beyond that, they should carry general liability insurance and workers compensation coverage. Ask for certificates and verify them directly with the issuing company, not just from a paper the contractor hands you.

That is the floor. Licensing and insurance do not tell you whether the contractor is actually good at roofing.

Manufacturer certifications tell you more

GAF, Owens Corning, and CertainTeed each run contractor certification programs. GAF Master Elite status, for example, requires ongoing volume, customer feedback, and training. Certified contractors can offer upgraded warranties that non-certified contractors cannot.

If a contractor is offering a lifetime system warranty, they should be certified by that manufacturer. Ask for the certificate.

How to read quotes

Quotes should be specific. A real quote lists the shingle brand and line, the underlayment type, where ice-and-water shield goes, what flashings are included or replaced, what drip edge is used, how ventilation is handled, and what the workmanship warranty is.

If a quote is one line that says "replace roof - $X," that is not a quote. That is a number. You have no way to compare it to another quote because you do not know what you are comparing.

Red flags

Door-to-door storm chasers immediately after weather events. Large upfront deposits (more than 10-15 percent is unusual). No local address or no long-standing phone number. Pressure to sign on the spot. Quotes dramatically cheaper than everyone else (usually because something is being left out).

What to ask at the end

Can I see photos of recent completed work? Can I talk to a recent customer? What happens if the work takes longer than planned? What is the process for punch-list items after the install? What does the workmanship warranty actually cover and for how long?

Good contractors welcome these questions. Bad ones dodge them.