Licensed Plumber in Hamilton, NJ
Want credentials you can verify? These plumbers are BBB accredited.
Mercer County15 plumbers available
All Licensed Plumber Pros in Hamilton
J & D Plumbing & Heating
5·756 reviews·
In HamiltonGoogle Verified
+6 more
Top pick5.0Google
Strengths
After-hours callback confirmed: owner called same night and…
Upfront phone estimates without requiring a paid site visit
Emergency fit-in confirmed: scheduled on short notice within…
Concerns
Not enough data to identify weaknesses
“Fantastic service. Super fast after hours callback to discuss my hot water heater replacement needs and the next day the…”
Roto-Rooter Plumbing & Water Cleanup
4.8·849 reviews·
In HamiltonGoogle Verified
+7 more
Top pick4.8Google
Strengths
Same-day emergency response under 1 hour in 2 of 5 reviews;
Transparent pricing — upfront quotes before proceeding, no…
Technician respects property (carpet, home belongings) and…
Concerns
Not enough data to identify weaknesses
“Liam was our technician and he was absolutely amazing.... textbook class service, from start to finish.”
JP Plumbing and Heating LLC
5·35 reviews·
In HamiltonGoogle Verified
+4 more
Top pick5.0Google
Strengths
Proactive diagnostics: during a frozen pipe call before a major…
After-hours availability confirmed: came after hours to shut off…
Same-day communication: Pedro answered quickly for urgent…
Concerns
Slow response noted once in themeCounts (slow_response=1 out of…
“He first came out the day before a major snowstorm when we were dealing with a frozen pipe.”
Professor Gatsby's Heating, Cooling, Plumbing & Electrical
5·256 reviews·
In HamiltonGoogle Verified
+4 more
Top pick5.0Google
Strengths
Emergency plumbing response cited as 'very quick' across multiple…
Flat job-based pricing with willingness to work on cost with…
Concerns
Not enough data to identify weaknesses
“Dominic was the tech that came out to our house. He was there before the alloted time slot. Very nice and courteous.”
ProTec Plumbing
5·5 reviews·
5 mi awayGoogle Verified
+5 more
Top pick5.0Google
Strengths
Called back Sunday night, arrived Sunday night to inspect,…
Emergency leak: arrived within 2 hours of contact, diagnosed and…
Toilet/drain backup resolved within the day at a fair price;
Concerns
Not enough data to identify weaknesses
“This was the only company that called me back on a Sunday night and came out on a Sunday night to check out my property…”
Mc Mullen's Plumbing-Drain Services
4.9·49 reviews·
6 mi awayGoogle Verified
+5 more
Top pick4.9Google
Strengths
Consistently lowest prices in the area
Diverts technicians mid-job to cover urgent situations;
Frozen-pipe issue resolved over the phone during a blizzard
Concerns
Not enough data to identify weaknesses
“When our pipes froze during the recent blizzard, Billy saved the day over the phone! Thanks to all of his advice, our…”
Bravo Plumbing LLC
4.8·301 reviews·
5 mi awayGoogle Verified
+5 more
Top pick4.8Google
Strengths
Weekend and after-hours availability confirmed in 2 of 5 reviews
Fair pricing cited in 1 review;
After-hours 6 PM shut-off valve repair completed same day
Concerns
Not enough data to identify weaknesses
“I called on a Sunday with an urgent issue, and the plumber came out right away.”
McHales Inc.
4.7·3.2k reviews·
11 mi away — Serves your areaGoogle Verified
+4 more
Top pick4.7Google
Strengths
Two burst pipes from single-digit temps assessed and running…
70-year-old diesel boiler replaced with new system
Faucets and drain pipes brought up to code in single visit
Concerns
Not enough data to identify weaknesses
“Vincent and John did an absolutely outstanding job replacing my 70-year-old diesel boiler with a brand-new system.”
Domanski Plumbing, Heating & Cooling Inc.
5·6 reviews·
In HamiltonGoogle Verified
+4 more
Solid pick5.0Google
Strengths
Owner on-site throughout complex jobs
Prompt follow-through cited by multiple reviewers
Competitive pricing: quoted best of 3 on a water-main…
Concerns
Not enough data to identify weaknesses
“Domanski plumbing has been our plumber for over 10 years, & has always been fast, accurate and gets the job done at a…”
Roots Plumbing
4.8·25 reviews·
6 mi awayGoogle Verified
+4 more
Top pick4.8Google
Strengths
Emergency toilet overflow cleared same day
10-year repeat customer across frozen pipes, clogged…
Upfront on time and cost options;
Concerns
Not enough data to identify weaknesses
“I had an emergency toilet overflow into my downstairs. Eddie came out and cleared the drain the same day.”
All Clear
5·1 reviews·
In HamiltonGoogle Verified
+4 more
Avoid5.0Google
Strengths
Single 5-star review describes the company as fair and…
Concerns
Not enough data to identify weaknesses
“I would recommend them to everyone.”
All Clear Plumbing
4.9·58 reviews·
In HamiltonGoogle Verified
+4 more
Top pick4.9Google
Strengths
Sewage line backup cleared within an hour of arrival;
Shawn waived service call charge on a septic emergency that…
Concerns
Sewer pipe replacement required two visits spread over two days…
“Shaun explained everything thoroughly and neatly and thanks to him I am an expert in 'pitch' and 'ABS' and 'bellies' etc.”
TJ Plumbing and Heating
4.9·46 reviews·
In HamiltonGoogle Verified
+2 more
Solid pick4.9Google
Strengths
Same-day service confirmed in 1 of 5 sampled reviews;
Crew cleans up completely before leaving and verifies all systems…
Concerns
Not enough data to identify weaknesses
“They were remarkably helpful, exceedingly knowledgeable, and swift in their actions.”
Gold Medal Service - Air Conditioning, Heating, Plumbing, & Electrical
4.4·6.0k reviews·
20 mi away — Edge of service areaGoogle Verified
+5 more
Strengths
5 of 5 reviewers praise fast response and completion speed,…
5 of 5 reviewers highlight professional communication and…
4 of 5 reviewers mention cleanliness, respect for home, and…
Concerns
Pricing fairness dimension scored 0/100 despite all 5 analyzed…
“kept house extremely clean, courteous and helpful explaining equipment”
Blue Boxer Plumbing
4.9·131 reviews·
14 mi away — Serves your areaGoogle Verified
+4 more
Top pick4.9Google
Strengths
After-hours emergency flexibility: agreed to wait on payment for…
Drain clog resolved within ~1 hour of call
Pricing beats unlicensed handymen
Concerns
Not enough data to identify weaknesses
“Chuck was here in about 1hr. Chuck was fantastic he explained everything to us and had the problem fixed in a short time.”
Common Licensed Plumber Scenarios
BBB Accredited
BBB accreditation means the business has met standards for trust, advertising, and complaint resolution. It's a verified third-party credential.
Licensed and Insured
All plumbers on our site are licensed in their state. BBB accreditation adds an additional layer of accountability and complaint resolution.
Verified Track Record
BBB-accredited plumbers have a public complaint history and resolution record you can review before hiring.
Warranty Compliance
For warranty-sensitive work (repiping, water heater installation), a licensed and accredited plumber provides documentation that satisfies manufacturers and insurers.
Frequently Asked Questions
How do I verify a plumber's license in NJ?
In NJ, you can verify plumber licenses through the state licensing board website. All plumbers listed on our site are licensed. Plumbers below with the BBB badge have additional third-party accreditation and a public complaint record.
Why does BBB accreditation matter?
BBB accreditation means the plumber has agreed to resolve complaints, maintain honest advertising, and meet trust standards. It's not a guarantee of quality, but it adds accountability — the BBB tracks complaints and resolution rates publicly.
Are all plumbers in Hamilton licensed?
By law, plumbers performing work in Mercer County must be licensed. However, some unlicensed handymen advertise plumbing services illegally. Hiring an unlicensed plumber voids insurance claims and can create permit issues when selling your home.
What's the difference between a journeyman and master plumber?
A journeyman plumber has completed an apprenticeship and passed the licensing exam. A master plumber has additional years of experience and can pull permits, supervise journeymen, and run a plumbing business. Both are qualified for residential work.
Other Services in Hamilton
Drain Cleaning Water Heater Repair Burst Pipe Repair Repiping Bathroom Remodel Plumbing Sewer Repair Sewer Line Replacement Toilet Repair Faucet Repair Garbage Disposal Repair Sump Pump Repair Gas Line Repair Slab Leak Repair Water Line Repair Kitchen Remodel Plumbing Hydro-Jetting 24-Hour Plumber Same-Day Plumber Affordable Plumber Plumber Cost Clogged Drain No Hot Water Water Leak Low Water Pressure Frozen Pipes Sewage Backup All Emergency Plumbers
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