The Best Plumbing Contractors in Princeton, NJ

Compare the highest-rated plumbing professionals in Princeton, New Jersey. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Princeton Plumbing Experts

4.8
(142 reviews)
Verified

A highly-rated local plumbing service specializing in both residential and commercial plumbing with 24/7 emergency response. Known for expert leak detection, water heater services, and handling complex plumbing issues in Princeton's historic and modern homes.

100 Nassau Street, Princeton, NJ 08542

Specialties & Features

24/7 Emergency Service
Water Heater Installation/Repair
Leak Detection
Historic Home Plumbing
Drain and Sewer Services

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Mercer Mechanical

4.7
(118 reviews)
Verified

Serving the Princeton area for over two decades, this provider offers comprehensive plumbing services including emergency repairs, pipe replacement, and bathroom/kitchen remodeling. They are known for their quick response times and expertise with local plumbing codes.

28 Emmons Drive, Princeton, NJ 08540

Specialties & Features

Emergency Plumbing Repairs
Pipe Installation/Replacement
Bathroom & Kitchen Plumbing
Sewer Line Services
Commercial Plumbing

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
#3

Crystal Blue Plumbing & Heating

4.6
(96 reviews)
Verified

A full-service plumbing company based in nearby Lawrenceville that extensively serves Princeton. They specialize in drain cleaning, water heater services, and whole-house repiping projects, with technicians experienced in both historic and new construction properties.

2455 Brunswick Pike, Lawrenceville, NJ 08648

Specialties & Features

Drain Cleaning
Water Heaters
Whole-House Repiping
Drain Camera Inspection
Residential Plumbing

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes

Why These Are the Top Plumbing Contractors in Princeton

Princeton's plumbing market serves a mix of historic colonial-era homes, modern residences, and commercial properties including Princeton University. Common issues include aging clay sewer lines, lead pipe replacement needs, and plumbing updates in historic properties requiring specialized expertise. Local contractors must be familiar with both modern codes and preservation requirements for historic structures. The market is competitive with several established providers offering 24/7 emergency services.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Princeton regulations and climate

Frequently Asked Questions About Plumbing in Princeton

Get answers to common questions about plumbing services in Princeton, New Jersey.

1What are typical plumbing service costs in Princeton, and why might they be higher than other areas?

For standard service calls in Princeton, homeowners can expect a base rate of $100-$200, with hourly labor ranging from $90-$150. Costs are often higher than state averages due to Princeton's higher cost of living, the prevalence of older, historic homes requiring specialized care, and the need for licensed, insured professionals who comply with strict local codes. Complex repairs in these older systems or emergency services will naturally increase the final price.

2How does Princeton's climate and old housing stock affect my plumbing, especially in winter?

Princeton's cold winters pose a significant freeze risk to pipes, particularly in uninsulated crawl spaces and basements common in historic homes. Proactive winterization is critical. Furthermore, many older Princeton homes have original galvanized steel or cast-iron pipes that are prone to corrosion, scale buildup, and failure, leading to low water pressure and leaks that modern PEX or copper repiping can resolve.

3Are there local regulations in Princeton I should know about before starting a plumbing project?

Yes, Princeton enforces the New Jersey Uniform Construction Code (UCC), and most plumbing work requires a permit and inspection from the Princeton Department of Infrastructure and Operations. This is especially important for water heater replacements, bathroom remodels, and sewer line work. Additionally, if your home is in the historic district, exterior work or modifications visible from the street may require separate approval from the Historic Preservation Commission.

4What should I look for when choosing a plumber in Princeton, NJ?

Always verify the plumber holds a valid New Jersey Master Plumber license and carries both liability insurance and worker's compensation. For Princeton's older homes, seek a company with specific experience in servicing and repairing historic plumbing systems. Check for local, verifiable references and reviews, and ensure they will handle all necessary township permits for the work to be performed.

5My basement has a floor drain that sometimes emits a sewer odor, especially in dry summer months. What's the likely cause?

This is a common issue in New Jersey homes. The floor drain's trap, which holds water to block sewer gases, likely evaporates during Princeton's hot, dry summers. Simply pouring a gallon of water down the drain quarterly can refill the trap and solve the problem. If the odor persists, it may indicate a damaged trap or a venting issue, which requires a professional assessment to ensure no hazardous gases are entering your home.