Short answer: in New Jersey, if the work touches structure, plumbing, gas, electric or heating, you need a permit. Call (201) 676-3099 or book a free estimate.
Short answer: in New Jersey, if the work touches structure, plumbing, gas, electric or heating, you need a permit. If it's cosmetic, you usually don't. The New Jersey Uniform Construction Code sorts every job into three buckets — ordinary maintenance (no permit), minor work (permit required, but you can start after giving the town notice), and everything else (permit and approval before you start). Typical homeowner permit fees run about $100 to $800, and most towns act within days to two weeks. Here's the full list.
Which NJ home projects need a permit?
This table is the common ground under the state code. Individual towns can be stricter about zoning, historic districts and flood zones, and a homeowners association or a condo board has its own rules on top. We check your town before we quote.
| Project (one- or two-family home) | Permit? | NJ code bucket |
|---|---|---|
| Painting, wallpaper, trim, countertops, flooring | No | Ordinary maintenance |
| Replacing roof shingles — even the whole roof | No | Ordinary maintenance |
| Replacing siding (except polypropylene siding) | No | Ordinary maintenance |
| Replacing windows or doors in the same opening, no framing change | No | Ordinary maintenance |
| Swapping a faucet, toilet, sink or tub in the same spot, same piping | No | Ordinary maintenance |
| Replacing a light switch or receptacle like for like | No | Ordinary maintenance |
| Repairing or replacing a deck that carries no roof | No | Ordinary maintenance |
| Replacing a water heater with the same capacity | Yes | Minor work |
| Replacing a boiler or warm-air furnace with the same capacity | Yes | Minor work |
| Adding five or fewer outlets on an existing circuit | Yes | Minor work |
| Adding a plumbing fixture in an existing space | Yes | Minor work |
| Finishing or renovating a basement without touching structure | Yes | Minor work |
| Bathroom remodel that moves plumbing or adds circuits | Yes | Full construction permit |
| Kitchen remodel with new electric, gas or plumbing runs | Yes | Full construction permit |
| Building a new deck | Yes | Permit + zoning approval |
| Central AC, mini-split, standby generator | Yes | Full construction permit |
| Electrical panel or 100-to-200 amp service upgrade | Yes | Permit + utility coordination |
| Removing a wall, adding a bedroom egress window, any addition | Yes | Full construction permit + plans |
| New gas piping or moving a gas appliance | Yes | Plumbing subcode permit, licensed plumber only |
What do "ordinary maintenance" and "minor work" actually mean?
Replacing what's there with the same thing in the same place. The state deliberately made roofing, siding and window swaps on one- and two-family homes fall in this bucket, which surprises people. No permit means no inspection, so you're trusting the contractor completely — this is exactly where bad roofers hide a layover and skipped flashing.
Water heaters, boilers, furnaces, a handful of outlets, basement renovation that doesn't touch structure. You give the construction office notice before work begins, the work can proceed, and the permit application gets filed within five business days. The inspection still happens. This is how a no-heat furnace swap gets done in January without waiting on paperwork.
New construction, additions, structural changes, moving plumbing or gas, new circuits, decks, AC and generators. Plans go in, the subcode officials review, the permit is issued, and only then does work start. Doing this work without a permit is the mistake that costs the most later.
How much do building permits cost in New Jersey?
New Jersey towns build the fee off the estimated cost of the work, usually a set dollar amount per $1,000 of construction cost, plus flat fees per plumbing fixture, per electrical device and per mechanical unit. Paramus, for example, charges by the $1,000 on the building subcode with a residential minimum, and adds separate plumbing and electrical fees. A state Department of Community Affairs surcharge rides on top. Two towns, same bathroom, $150 apart — that's normal.
Permit fees are part of our written price. They're a line item, not a surprise at the end.
| Job | Typical NJ permit fee |
|---|---|
| Water heater replacement | $75 – $150 |
| Furnace or boiler replacement | $100 – $250 |
| Roof replacement (where a town requires one) | $100 – $400 |
| Deck | $75 – $350+ (plus zoning) |
| Bathroom remodel | $200 – $550 |
| Kitchen remodel | $300 – $750 |
| Basement finishing | $300 – $800 |
| Electrical panel / service upgrade | $100 – $350 |
| Standby generator (electric + plumbing subcodes) | $350 – $650 |
| Room addition | $600 – $2,000+ |
Who pulls the permit — me or the contractor?
The contractor. Always. In New Jersey, plumbing, electrical, HVAC and fire subcode permits have to be signed by the license holder doing that work, so a registered contractor with licensed trades on staff files them as a matter of course.
When a contractor asks you to pull the permit as the homeowner, that is a signal, not a convenience. Usually it means they can't — no registration, no plumbing or electrical license, or an insurance problem. It also shifts responsibility to you if the work fails inspection. We pull the permits, meet the inspectors and hand you the approvals at the end. That's included in the price.
What do the inspections check?
Most New Jersey construction offices will inspect within about three business days of a request. We schedule around them so your job doesn't sit waiting with open walls.
- Rough plumbing: drains, vents and supply lines, pressure tested before anything gets covered.
- Rough electric: box fill, wire size, grounding, GFCI and AFCI protection, correct breaker for the load.
- Framing: headers, joist spans, hangers, fire blocking, and the beam that replaced the wall you removed.
- Insulation and energy: R-values in walls, ceilings and basement perimeters.
- Gas piping: a pressure test the inspector witnesses before the line is closed up.
- Final: smoke and carbon monoxide alarms, egress, handrails and guards, and the certificate of approval that ends the job on paper.
What happens if I sell a house with unpermitted work?
It comes up, and it comes up at the worst time. In most New Jersey towns the sale needs a certificate of occupancy or a resale inspection, and the finished basement nobody permitted, the deck nobody permitted or the bathroom that appeared in the attic shows up against the town's records.
Then it's your problem on the buyer's timeline. You may be told to open walls so an inspector can see the wiring, apply for an after-the-fact permit at a higher fee, or tear the work out. Buyers' attorneys use it to knock money off the price. Some insurers deny claims tied to unpermitted work. A $300 permit you skipped in 2019 turns into a $12,000 negotiation in 2026.
If you already have unpermitted work, don't panic — most of it can be legalized. A contractor opens inspection points, the town reviews it, and you pay the fees. We do this for people every year.
Where these numbers come from
Permit rules come from the New Jersey Uniform Construction Code and the Department of Community Affairs guidance on ordinary maintenance and minor work. Fee ranges come from published New Jersey municipal fee schedules, national permit cost guides and the permits we pulled on our own 2026 jobs across Bergen, Passaic, Essex, Morris, Hudson and Middlesex counties. Your town sets your fee, and towns update their schedules — treat these as brackets, not quotes.
Questions people ask next
Do I need a permit to remodel my bathroom in NJ?
If you're only swapping a vanity, a toilet or a tub in the same location with no change to the piping, that's ordinary maintenance and no permit is needed. The moment you move a drain, add a fixture, run new circuits or change the layout, you need a construction permit with plumbing and electrical subcodes. Almost every real gut remodel needs one.
Do you need a permit to replace a water heater in NJ?
Yes. A like-for-like water heater swap is "minor work" under the Uniform Construction Code — the town gets notice, the work can start, and the permit application is filed within five business days. A plumbing inspector still checks the venting, the relief valve, the expansion tank and the gas connection. We handle all of it.
Do I need a permit for a deck in New Jersey?
For a new deck, yes — a construction permit, and usually zoning approval first for setbacks and lot coverage. Repairing or replacing boards and railings on an existing deck that doesn't hold up a roof is ordinary maintenance. Footings get inspected before concrete and framing before decking, so plan for two stop points.
Do I need a permit to replace my roof in NJ?
Usually no. Under the state code, replacing any amount of existing roof covering on a one- or two-family home is ordinary maintenance. You do need a permit if you're replacing rafters, changing the roof line or adding structure, and some towns require a permit for a dumpster on the street. We check your town either way.
How long does a permit take in New Jersey?
State rules give a municipality 20 business days to act on a complete application. Simple mechanical and plumbing permits are often the same week. Bathrooms and kitchens usually clear in one to two weeks. Additions with sealed plans run three to six weeks, and zoning review adds time on top.
Can I pull my own permit as the homeowner?
For some general building work on your own home you can, but not for gas piping, and plumbing and electrical permits go to the licensed trade doing the work. Pulling it yourself also makes you the responsible party if it fails inspection. We recommend the contractor pulls it — and if one asks you to do it instead, find out why.
Need a licensed contractor near you?
If you searched “licensed contractor near me” anywhere in New Jersey, that's us. First Call Contracting is based in Paramus and sends its own licensed crew to all 21 counties — written price before work starts, no deposit, a real person on the phone 24/7.
Not sure what your town will require?
Tell us the job and we'll tell you the permit, the inspections and the fee before you spend a dollar. Our general contracting page shows everything we run in-house, permits included.
Or call Alex direct: (201) 676-3099