How to Choose a Roofing Contractor in New Jersey: A 10-Point Check

You can check a roofer properly in about half an hour. Most of that time goes on reading two estimates side by side; the rest is quick lookups anyone can do from a phone. Work through these in order and stop at the first real red flag.

1. Check the New Jersey registration

New Jersey doesn’t license roofers. It registers home improvement contractors through the Division of Consumer Affairs, and every company doing roofing on your home has to be registered. Look the company up on the state’s free license verification site and confirm the registration is active and in the same name as the company on your estimate.

Our NJ contractor license lookup guide walks through the search step by step. If you can’t find the company, stop here.

2. Get the insurance certificate, in writing

New Jersey requires registered contractors to carry commercial general liability insurance of at least $500,000 per occurrence, and a copy of the certificate has to come with the contract. Ask for it with the estimate, check the dates, and check the insured name matches the company.

Ask for proof of workers’ compensation coverage too. Roofing is dangerous work, and if someone on the crew is hurt at your house you want their employer’s policy to respond, not yours.

3. Look for a local address and a real track record

A company with a showroom or office you can drive past, a phone that’s answered during business hours and years of local jobs will still be there when you need a warranty call. After storms, crews follow the weather from state to state; they’re hard to find once the check has cleared.

4. Verify manufacturer credentials yourself

Shingle manufacturers certify contractors, and the certification level decides which warranties that contractor can register on your roof. Don’t take a logo on a truck at face value: GAF, Owens Corning and CertainTeed all publish contractor directories you can search by ZIP code. Our guide to GAF Master Elite explains what the top GAF tier actually changes for you.

5. Read reviews the right way

Look at the company’s Google reviews over several years, not just the total. Real review histories are uneven: a few a month, specific details, the occasional complaint with a reply from the owner. A burst of short five-star reviews in one week is a warning sign, not a recommendation. Check the Better Business Bureau for complaints and how they were resolved.

6. Insist on an inspection, not a driveway quote

A roofer who prices your job without getting on the roof, or at least into the attic, is guessing. A proper inspection looks at the shingles, flashing, valleys, vents and pipe boots, and at the underside of the deck for staining and soft spots. You should get photos of anything that needs attention. See what a good roof inspection covers.

7. Compare itemised estimates, line by line

Get at least two written estimates and compare the lines, not the totals: roof area in squares, named shingle line and underlayment, ice-and-water shield, tear-off and how many layers, new or reused flashing, ventilation, the per-sheet price for deck repairs, clean-up and warranty. Most big price gaps come from scope. Our roof cost calculator gives you a published-price range to check both against.

8. Read the contract before you sign it

For any job over $500, New Jersey requires a written contract with the contractor’s legal name, address and registration number, the insurance certificate, a description of the work and materials, the total price, start and completion dates, and your right to cancel. You can cancel for any reason before midnight of the third business day after you receive the signed contract. The license lookup guide lists every required item.

9. Keep the deposit sensible

New Jersey’s checklist doesn’t set a deposit limit, but a payment schedule tied to progress is normal: a deposit toward materials, the balance on completion. Be wary of anyone asking for most of the price in cash before materials are ordered, and don’t pay the final balance until the work is finished and you’ve walked the property.

10. Ask who will actually be on your roof

Ask whether the company’s own crews do the work or it’s subcontracted, who the foreman is, how long the job should take, how they protect landscaping and siding, and how they clean up nails. A good contractor answers these without hesitation.

The same check works for every trade

Registration, insurance, a written contract and a local track record apply to your fence, windows and painter too. If you’re lining up other projects, the South Jersey Contractors directory lists local home-service companies by trade. Run the same checks on anyone you hire.

M&J Roofing, the company that runs this site, keeps a longer list of questions to ask a New Jersey roofing company before you sign.