Expert Plumbers in Princeton, NJ

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When you need quick plumbing repairs, new fixtures, or tankless water heater installations for your Princeton home, reach out to the expert team at Len The Plumber for service you can count on.

For over 25 years, we’ve left countless families satisfied with our exceptional technical skills and customer care on every job, big or small.

Schedule plumbing services for your Princeton, NJ, home today by calling (800) 950-4619(800) 950-4619 or contacting Len The Plumber online! We charge no extra fees for overtime, weekend, or emergency plumbing services!

Signs You Need a Plumber

While some plumbing problems are immediately obvious — toilets that won’t flush, water heaters that won’t heat, or massive leaks — others can be more subtle. Here are a few telltale signs that indicate you have a problem at hand that warrants a plumber’s attention:

• Unreliable or low water pressure: If your water pressure starts misbehaving or never was great to begin with, it can indicate installation problems, mineral buildups, leaks, and more.
• Unpredictable changes in water temperature: If your water turns extremely hot and cold for no reason, your water heater may have a thermostat problem, mineral buildup, or other issues.
• Constant slow-moving drainage: If you end up in ankle-deep water when taking a shower, have to wait five minutes for your sink to drain, or get constant toilet clogs, you need a professional to help.
• Unexplainable increases in your water bill: If your water bill goes up for no reason, you might have undetected leaks.
• Strange smells, tastes, colors, or sounds from faucets, drains, and appliances: Anything out of the ordinary in your plumbing warrants attention, especially if it hints at water contamination or leaks.

Call Len The Plumber at (800) 950-4619(800) 950-4619 or contact us online for same day plumbing service in Princeton!

Emergency Plumbing Service in Princeton

You can count on Len The Plumber for your emergency plumbing service needs. Our team will arrive quickly, and we’re equipped to identify the problem and resolve it fast, with fully stocked trucks, well-trained plumbers, and cutting-edge solutions.

Call for emergency plumbing service if you have

• Burst pipes
• Major water leaks
• Sewer backups
• Sewer line clogs

Request emergency plumbing services by calling our team at (800) 950-4619(800) 950-4619!

Plumbing Repair & Replacement in Princeton

At Len The Plumber, we offer plumbing repair and replacement services for a wide variety of appliances and equipment. Our plumbing fixture services include but are not limited to:

Whole-Home Repiping in Princeton

From drain cleaning to repiping your entire home, we handle all your plumbing needs! Len The Plumber can replace any and all of the lines in your home, including:

• Water line repair and replacement: Have a leaking or broken water line? Our team can restore reliable incoming water for your home.
• Gas line repair and replacement: Aging gas lines have you worried? Minor gas leaks, or even just the concern of minor leaks, can be quite stressful; let our team get your lines in top shape.
• Sewer line repair and replacement: When your sewer line gives you trouble, you notice it throughout your entire home as every drain slows or stops, toilets clog, strange smells come through drains, and wet patches form in your yard. We use video pipe inspection to determine if trenchless or traditional sewer line service is best for your pipes.

Local Service You Can Trust in Princeton

Princeton isn’t a single zip code; it’s a patchwork of distinctive villages, corridors, and commuter hubs tucked between the Delaware River and the Raritan Canal. Our technicians navigate them every day, so they know the quickest back‑roads when Route 1 backs up.

Downtown & University District

Historic Nassau Street and the leafy campus streets present unique challenges. Many buildings share party walls and century‑old plumbing. We use non‑invasive leak detection to avoid damage to original plaster and stonework, and we’re accustomed to coordinating with landlords, campus facilities, and local inspectors for smooth permitting.

Princeton Junction & West Windsor

Homeowners near the Northeast Corridor value efficiency. We often install high‑efficiency condensing boilers, tankless water heaters, and smart leak‑detection systems here. Our team schedules appointments around train departures so you never miss your commute.

Plainsboro & Carnegie Lake Corridor

Lake‑adjacent properties contend with a high water table and heavy spring rains. Sump pump maintenance and back‑up battery systems are top requests. We also service the newer mixed‑use developments along Scudders Mill Road, where space‑saving tankless heaters free up closet space.

Kingston, Rocky Hill & Montgomery Township

These colonial villages straddle the Mercer‑Middlesex line and feature a blend of stone farmhouses and modern subdivisions. We frequently address hard‑water scale that shortens heater life. Ask us about whole‑home filtration to protect fixtures and improve taste.

Lawrence Township & Lawrenceville Main Street

Here, aging clay sewer laterals are prone to root intrusion. Len The Plumber provides camera inspections and trenchless “pull‑in‑place” liners that restore flow without tearing up mature landscaping or historic brick sidewalks.

Hopewell Borough & Hopewell Township

Rural roads and private wells require thoughtful planning. We bring potable‑water‑safe hoses and generator‑powered equipment for homes with limited electrical capacity. Well pump repair, storage tank sizing, and constant‑pressure systems are specialties.

Skillman & Belle Mead

Families moving west for bigger yards choose Skillman’s newer colonials. We help them protect finished basements with backwater valves and water‑sensor alarms that integrate with smart‑home apps.

Route 27 & “The Technology Corridor”

Along the busy stretch shared by Princeton Forrestal Village and corporate research parks, commercial properties rely on our 24/7 response contracts. Leaks shut down labs and server rooms fast; we keep critical systems online.

Wherever you live or work within 08540, 08542, 08544, or nearby zip codes, you’ll see our orange‑striped vans on your street.

Schedule Plumbing Service in Princeton, NJ Today

When you need plumbing in the Princeton area, whatever your need, make the expert team at Len The Plumber your first call.

We have the best tools and training in the industry to provide the same day service you need with clear communication before work begins!

Ready to schedule an appointment or have other questions? Call Len The Plumber at (800) 950-4619(800) 950-4619 or reach out online to get started!

Princeton HVAC and Plumbing FAQ

How fast can you arrive in Princeton?

Most customers see a technician within two hours. Because we station teams throughout Mercer County, we rarely battle traffic delays.

Do you service tankless water heaters?

Yes. We install, repair, and flush all major tankless brands. Regular flushing keeps mineral scale from reducing efficiency.

What plumbing permits are required in Princeton?

Simple fixture swaps usually don’t need a permit, but water heater replacement, gas work, and any line rerouting do. We handle applications with the Princeton Building Department so you don’t have to.

Can you work in historic homes?

Absolutely. We use inspection cameras and flexible PEX to snake through tight joists, preserving original plaster and trim.

Do you offer HVAC services, too?

We do. Our HVAC division provides AC repair, boiler replacement, ductless mini‑splits, and seasonal tune‑ups. One call covers both comfort and plumbing.

What maintenance should I schedule before winter?

Have us flush the water heater, test the sump pump, insulate exposed pipes, and tune the boiler. Preventive care beats emergency repairs during a blizzard.

Is weekend service really the same price?

Yes. Rates stay flat 24/7—no surprises.

Do you install smart leak detectors?

We offer Wi‑Fi‑enabled sensors and automatic shutoff valves that integrate with Alexa and Google Home. They text you the moment water appears where it shouldn’t.

How do I know if my sewer needs repair?

Frequent clogs in more than one fixture, bubbling toilets, or wet spots in the yard are common signs. A video inspection pinpoints the issue.

What areas do you cover outside Princeton?

We serve all of Mercer County plus parts of Middlesex, Somerset, and Bucks Counties. See the hyper‑local section above for details.