The most expensive part of a renovation is rarely the materials or the labor — it is the misunderstanding. Most contractor disputes come down to things that were never discussed before the contract was signed: who is actually doing the work, what happens when something changes, what the warranty covers. Ask these twelve questions before you sign anything, and get the answers in writing.
It should start with 13VH. Then verify it yourself through the NJ Division of Consumer Affairs — check that it is active and look for disciplinary actions. A legitimate contractor expects this question.
Ask for certificates and confirm they are current with the insurer. If an uninsured worker is hurt on your property, the liability exposure can land on you.
Both are fine, but you should know which. Ask who the project supervisor is, whether they will be on site daily, and how subcontractors are vetted. "My guys" should be able to become actual names.
The contractor pulls their own permits — always. If they ask you to do it, walk away. They should also be able to tell you which permits your project needs and give you a realistic sense of your municipality's review timeline.
Never pay in full upfront. A normal structure is a deposit followed by payments tied to completed milestones, with a meaningful holdback until the punch list is done and inspections pass. If the schedule is "half now, half whenever," that is not a schedule.
Verbal timelines evaporate. Get start and approximate completion dates in writing, along with what happens if the schedule slips. Delays happen; what matters is whether the contract acknowledges that.
Changes are normal; surprise charges are not. Every change should be documented in writing with its cost and schedule impact before the work is done, and signed by both sides. Ask to see their change-order form before there is a change to order.
Manufacturer warranties cover materials; the contractor's warranty covers the installation. Get the duration and the terms in writing — what is covered, for how long, and how a warranty claim works. A contractor with no written warranty is telling you something.
Weekly updates? A shared photo log? One point of contact? Communication breakdowns cause more misery than construction defects. Agree on the method and the frequency now, while everyone is calm.
Failed inspections happen even on well-run jobs. The question is who fixes it and who pays. Code-compliance failures on the contractor's work should be the contractor's responsibility — confirm that before the inspector is standing in your hallway.
Read it at home, without pressure. New Jersey requires the contract to include the contractor's legal name, address, 13VH number, scope of work, total price, dates, and notice of your three-day right to cancel. If any of that is missing, or if they will not let you take the contract home, do not sign it there.
Good contractors will tell you exactly what decisions and selections they need, and by when — fixtures, tile, paint colors, appliance models. Most delays blamed on "the contractor" actually started as a homeowner selection that arrived six weeks late. Knowing your homework upfront keeps the schedule honest on both sides.
None of these questions are confrontational. A professional contractor will answer all twelve without blinking — they hear them from every informed client. The one who gets defensive about question one is the one you needed question one for.