Before you let anyone open a wall or a water heater, check that the person is allowed to do the work. In New Jersey, plumbing work may only be performed by a master plumber or an authorized plumbing contractor, under N.J.S.A. 45:14C-1 and N.J.A.C. 13:32-3.3. That rule protects you, and it gives you a simple set of questions.
This checklist covers the license, the permit, the insurance and the written price. Each takes a few minutes to check, and together they screen out most bad hires.
None of this vouches for any particular company. It is a way to verify before you pay.
Step One: Verify The License
Ask the plumber for the license number and the name it is issued under. Then check it yourself. Search for the NJ Division of Consumer Affairs license verification and look up the licensee by name or number.
Confirm that the name matches the business, that the license is active and that it is a plumbing license. A number given verbally is not proof. If a plumber will not give a number, that answer tells you something.
State rules say licensees show their plumbing license number on invoices and advertising. A written estimate or invoice with no number is a reason to ask again.
Step Two: Ask Who Pulls The Permit
Work that adds, replaces or relocates piping needs a permit. The permit is signed by the licensee, or by a bona-fide representative of the licensed business. The license number must appear on the permit application, under N.J.A.C. 5:23-2.15.
That makes the permit a useful check. Ask the plumber who will file it and when the inspection will happen. A plumber who suggests skipping the permit is asking you to take on the risk.
Step Three: Insurance And Written Price
Ask for a certificate of insurance and read what it covers. Liability coverage protects your property if the work causes damage. If workers are on the job, ask about workers' compensation.
Get the price in writing before work starts. The document should describe the scope, the materials, what happens if the plumber finds a surprise and whether permit and disposal are included. Be wary of a quote that arrives only as a verbal number.
| What to check | What a good answer looks like | Where to confirm |
|---|---|---|
| License | Active plumbing license in the business's name. | NJ Division of Consumer Affairs license verification. |
| Permit | The licensee files and signs it, and a number appears on the application. | East Orange Building Division, 973-266-5320. |
| Insurance | A current certificate you can read. | The insurer named on the certificate. |
| Written price | Scope, materials and exclusions in writing. | The estimate or invoice itself. |
| Invoice | Plumbing license number printed on it. | The invoice you receive. |
When A Job Needs A Licensed Plumber
Some work is ordinary maintenance that needs no permit, such as clearing a stoppage or replacing a faucet with a similar one. Other work, such as replacing drain or supply piping, usually needs a permit and licensed plumbing. Jobs like a water heater replacement, a sewer line repair or a repiping project belong in that second group.
The state rule has one exception. A single-family homeowner may do work on his or her own dwelling. That does not extend to tenants, landlords of multifamily buildings or buyers hiring a friend.
Questions To Ask On The First Call
A short call can reveal a lot. Ask the plumber what the license number is, who will do the work and who will be on site. Ask whether the plumber or a subcontractor will file the permit.
Ask how the plumber charges for the first visit and what is included. A plumber who answers plainly and offers to put the answers in writing is easier to trust than one who dodges. You can ask us the same questions at (973) 488-5410.
- What is your plumbing license number, and under whose name is it issued?
- Will this job need a permit, and who files it?
- Can I see a certificate of insurance?
- Will you give me the price and scope in writing before you start?
- Who will be on site, and will you use subcontractors?
If You Are A Tenant Or Property Manager
Tenants usually do not hire the plumber, but they can still ask. Ask the landlord or manager who is doing the work, and whether a permit is needed. A repair that involves piping, a water heater or a gas line should be done by a licensed plumber.
Property managers carry more responsibility. Keep a file of each vendor's license, insurance and invoices, and record permits and inspections. That file protects the owner if a claim or complaint arises later.
What Verification Cannot Tell You
A valid license shows that a person is allowed to do plumbing work. It does not show that the person is the right fit for your job, or that a quote is fair. Compare scope and ask for details.
A clean record also does not replace an inspection. The permit and the final inspection are the independent check on the work. Ask for the result when the job is finished.
Warning Signs To Take Seriously
- No license number on the estimate, invoice or advertising.
- A request for full payment in cash before work begins.
- A suggestion that a permit is not needed for a job that adds or replaces piping.
- A price that changes on site with no written explanation.
- Pressure to decide today, with no time to verify.
- An address or business name that does not match the license record.
What To Keep After The Job
Keep the invoice, the permit number and the inspection result. They help with insurance claims, resale and any later warranty question. If an inspection is scheduled, make sure someone is home to give access.
If something goes wrong, the Division of Consumer Affairs is the state office that regulates plumbing licensees. Keep your records in one place and write down dates and names.
A Word On Reviews And Advertising
Online listings and ads are a starting point, not proof. Anyone can post a business name and a phone number. A license lookup and a call to the Building Division tell you more than a page of claims.
Look for a real street address, a phone you can call and a business name that matches the license record. Be careful with listings that name a town but give no way to confirm who will arrive. If the answers are vague, keep looking.
What This Means In East Orange
In East Orange, permits go through the Building Division, a State Uniform Construction Code enforcement agency at City Hall, 44 City Hall Plaza, third floor. Applications are submitted in person. Call 973-266-5320 to ask about a specific job or to confirm that a permit was filed for work already done.
The city's draft housing element shows 69 percent of occupied homes are renter occupied and 38.1 percent of units are in buildings of 20 or more units. In those buildings the owner usually hires the plumber. Tenants can still ask the landlord who did the work and ask to see the permit.
Owners also carry responsibility for the sewer lateral from the home to the connection with the Water Commission main. Ask for a permit and a licensed contractor for lateral work, and call the Water Department at 973-266-8869. We serve Irvington and Bloomfield too, and you can reach us at (973) 488-5410 with questions about any job.