How to Find an Honest Plumber in Central New Jersey: 7 Steps
By Mike Holt, NJ Master Plumber · November 1, 2026 · 3 min read · Updated November 1, 2026
Quick answer
To find an honest plumber, look up the master plumber license, ask how they charge before anyone drives out, and read reviews that describe real jobs. Then ask them to show you the problem, ask what isn't worth fixing and get the price in writing before work starts. For a big replacement, get a second opinion.
- Difficulty
- Easy
- Time
- About 15 minutes of checking
- You need
- A phone and the plumber's license number
Rather not risk it? A licensed plumber can handle this for you, with written upfront flat-rate pricing options before any work starts.
Water leaking right now? Shut off the main water valve if you can reach it safely, then call us. 908-873-6686
Most people can't tell a fair plumbing quote from an inflated one, and they usually have to decide with a problem in front of them. You don't need to know plumbing to judge a plumber, though. These seven steps take about 15 minutes and show you how a company treats people before you let it in the house.
How to find an honest plumber
Step 1: Look up the license
Ask for the New Jersey master plumber license number, then look it up on the NJ Division of Consumer Affairs license verification site. An honest company gives you the number right away and usually prints it on its website, estimates and invoices. Ours is Lic. #36BI01345600.
Step 2: Ask how they charge before anyone drives out
Ask what the service call costs, whether it's waived if you go ahead, and whether any emergency fee applies. You should get a clear answer on the phone. Vague answers here tend to turn into surprises on the invoice.
Step 3: Read reviews for specifics
Skip past the star rating and look for reviews that describe a real job. Useful ones mention that the plumber explained things, that the price matched the quote, or that they advised against a repair. Look for recent reviews too, and see how the company answers an unhappy customer.
Step 4: Ask them to show you the problem
When the problem can be seen safely, ask the plumber to point it out or show you a photo. Ask to see the old part after it's replaced. If the problem is hidden, ask how they'll find it and what finding it costs.
Step 5: Ask what's not worth fixing
This is the most useful question on the list: "Is there anything here you wouldn't bother fixing?" Also ask what happens if you wait. An honest plumber will separate what's urgent from what can wait, and will sometimes talk you out of spending money.
Step 6: Get the price in writing before work starts
Ask for the price in writing, with what's included and what could change it. If something hidden turns up once the work begins, you should hear about it and approve the new price before they continue.
Step 7: Get a second opinion on big jobs
For a big replacement, it's reasonable to get a second written quote unless water is flooding the home or something is unsafe. Compare what each quote covers along with the total. Our article on low plumbing bids explains what a cheap quote often leaves out.
What are the warning signs of a dishonest plumber?
- They won't give you a license number, or they get vague when you ask for it.
- They won't say how they charge until they're in your house.
- They push you to decide right now when nothing is flooding or unsafe.
- They jump straight to replacement and can't explain why a repair won't work.
- The price is verbal only, or it changes after the work with no conversation.
- Their reviews are a burst of vague praise with no real jobs described.
One of these doesn't prove anything. If you see several, call someone else.
What do our customers say?
You can judge us the same way. Here's what two customers wrote on Google:
"They tell me what is worth doing or not doing, and won't try to upcharge me." Hazim A.
"Mike works quickly and is transparent with pricing. He's trustworthy, reliable and brings his own shoe covers." Naomi H.
Read more in our selected reviews. Plumbing Doctor is a veteran-owned company in Somerset, NJ, owned by NJ Master Plumber Mike Holt, with 25 years in the trade. The $49 service call is waived if you go ahead with the work. Written upfront flat-rate pricing options. You choose. Call 908-873-6686, and for more on hiring, see how to choose a plumber.
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Stop and call us if
- You have a quote for a big replacement and want a second opinion.
- A plumber won't explain the problem or put the price in writing.
- You need a licensed plumber in Central New Jersey. Contact us to confirm whether your job site is within our current service area.
Call 908-873-6686.
Michael Holt
Owner and operator of Plumbing Doctor, NJ Master Plumber (Lic. #36BI01345600) and U.S. Marine Corps veteran.
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