Roofing fraud consistently ranks among the top consumer complaint categories in New Jersey — which is exactly why the state created its contractor registration system. The good news: vetting a roofer properly takes about fifteen minutes, and it filters out almost every bad actor. Here's the process.
Step 1: Verify they're a registered NJ Home Improvement Contractor
This is non-negotiable. New Jersey requires nearly every home improvement contractor to register annually with the New Jersey Division of Consumer Affairs as a Home Improvement Contractor (HIC). When they register, they receive a unique 13-digit number that starts with "13VH."
By law, that number must appear on their contracts, estimates, business cards, advertisements, and both sides of their work vehicles. If you can't find it, or they won't give it to you, stop there. Since 2006, NJ municipalities have been barred from issuing construction permits to unregistered contractors — so an unregistered "roofer" literally cannot pull a legal permit for your job.
Step 2: Confirm insurance — the right amount
Registered NJ contractors must carry at least $500,000 in commercial general liability insurance. Ask for a certificate of insurance, and ideally call the insurer to confirm it's active. This matters more than people realize: if an uninsured worker is hurt on your roof, or your home is damaged during the job, you can end up liable. Don't take "we're insured" at face value — see the certificate.
Step 3: Insist on a proper written contract
For any job over $500, NJ law requires a written contract before work starts, including the HIC number, scope, total price, start/finish dates, and a cancellation notice. A roofer who wants to work on a handshake is either inexperienced or hiding something. We break down every clause in our guide to reading a roofing estimate.
Verify the license and insurance — every time
Before anything else, confirm that any contractor you're considering is a registered New Jersey Home Improvement Contractor and carries both liability insurance and workers' compensation. Ask for the registration number and certificates of insurance, and actually verify them rather than taking a verbal claim at face value. This step alone screens out a large share of unqualified operators. If a worker is hurt on your property or uninsured work damages your home, proper coverage is what protects you from liability — and a contractor who can't or won't provide proof is one to walk away from, as our red flags guide details.
Look for local roots and a real track record
A contractor with deep roots in New Jersey and a verifiable history is far more likely to do quality work and stand behind it years later. Look for an established local presence — a real address, a consistent business name, genuine online reviews, and references from past customers in your area. Local contractors understand New Jersey's climate, code requirements, and permitting, and they have a reputation in the community to protect. This matters most when something goes wrong: a local company with a track record will answer the phone for a warranty issue, while a transient crew will be long gone.
Compare quotes on substance, not just price
Get multiple detailed written estimates and compare them on scope, not just the bottom line. The right choice balances a fair price with quality materials, a complete installation (full tear-off, proper underlayment and flashing, balanced ventilation), a strong workmanship warranty, and a contractor you trust to communicate well and show up. Our guides on reading a roofing estimate and 2026 roofing costs help you judge whether a quote is complete and fairly priced. The cheapest bid rarely represents the best value once you account for what it leaves out.
Questions a good contractor welcomes
The right roofer won't flinch when you ask the important questions: Are you a registered New Jersey Home Improvement Contractor, and can I see your insurance certificates? How long have you worked in this area? Can I see references and reviews? Is this a full tear-off? What's the workmanship warranty, and is it transferable? Who pulls the permit? A trustworthy contractor answers all of these directly and puts the important ones in a written contract. Vagueness, defensiveness, or pressure to skip the questions is itself an answer. Taking the time to vet thoroughly is the surest way to end up with a roof — and a roofer — you can rely on for decades.
Take your time — it's worth it
Roofing is one of the largest investments most homeowners make in their property, and the contractor you choose matters as much as the materials on the roof. There's rarely a reason to rush the decision. Get your estimates, verify credentials, check references, and choose deliberately. A few extra days of due diligence is nothing against a roof that should protect your home for decades — and it's the surest way to avoid the regret of a bad hire.
RoofersNJ.com is a licensed, insured New Jersey roofing contractor serving all 21 counties. Call 973-355-0890 or request a free estimate — and ask us anything during the vetting process.
Step 4: Ask these questions
- "What's your HIC registration number?" They should rattle it off without hesitation.
- "Will you pull the permit in your name?" The answer should be yes. A contractor asking you to pull the permit is dodging responsibility.
- "Who's actually on the crew — employees or subs?" Either can be fine, but you want to know who'll be on your roof and that they're covered by insurance.
- "What's your workmanship warranty, in writing?" Material warranties come from the manufacturer; the installation warranty comes from the contractor.
- "Can I see recent local references?" A roofer working in your county should have nearby jobs you can ask about.
Step 5: Recognize the storm-chaser playbook
After a big NJ storm, out-of-state crews flood in. Some are legitimate; many aren't. Watch for:
- Unsolicited door-knocking right after a storm, claiming they "noticed damage from the street."
- Out-of-state plates and no local address. When the work fails, they're three states away.
- "Sign today" pressure and offers to "waive your deductible" — which is insurance fraud and can leave you exposed.
- Demands for large upfront cash.
- No verifiable HIC number.
A local, registered contractor is still here next year when you need a warranty honored. That permanence is the entire point of hiring local.
What to do if a contractor wrongs you
New Jersey homeowners have real recourse. Contractor fraud — misrepresenting credentials, abandoning a job, soliciting while unregistered — can be reported to the New Jersey Division of Consumer Affairs, which enforces the Contractors' Registration Act. The registration system exists precisely so you're not on your own.
The bottom line
Check the 13VH number, see the insurance certificate, get it in writing, and favor a local contractor who'll be around to stand behind the work. Do those four things and you've eliminated nearly every roofing scam in New Jersey before it can reach you.
Reading reviews the smart way
Online reviews are useful, but read them critically. Look for specifics — reviews that mention the crew's name, how a problem was handled, or the cleanup tell you more than a wall of generic five-stars. Pay special attention to how a contractor responds to negative reviews; a professional, solution-oriented reply says more than a perfect rating. And weight recent, local reviews most heavily — a roofer with strong feedback in your county is a better bet than one with old reviews from far away.
Why local matters more for roofing than almost any trade
A roof's problems often don't show up immediately — a workmanship issue can surface a year or two later, during a hard rain. If your contractor was a storm-chasing crew from out of state, they're long gone and your workmanship warranty is worthless. A local, registered NJ contractor has a reputation in your community to protect and is reachable when you need a warranty honored. That permanence is the single biggest argument for hiring local, and it's why we've built our business around serving NJ homeowners for the long term.
The deductible-waiver trap
After storms, some contractors offer to "waive your deductible" or "eat the deductible" to win the job. This is insurance fraud — the deductible is your legal obligation under the policy, and a contractor who offers to hide it is asking you to participate in defrauding your insurer. Beyond the ethics, it tells you everything about how they do business. Walk away.
Frequently asked questions
How do I check a contractor's HIC registration?
NJ home improvement contractors register with the New Jersey Division of Consumer Affairs, and you can verify a 13VH registration number through the Division. Ask the contractor for their number and confirm it's active and matches their business name.
Does a registered contractor guarantee good work?
Registration is the floor, not the ceiling — it confirms they're legal, insured, and accountable, but you still want references, a solid workmanship warranty, and a clear written contract. Think of registration as the filter that removes the obvious risks.
What if I already hired someone and they did bad work?
Document everything, stop further payments if work is incomplete or defective, and you can file a complaint with the New Jersey Division of Consumer Affairs. The Contractors' Registration Act gives NJ homeowners real remedies — one more reason to only ever hire registered contractors.