Comprehensive Sewer Services with Modern Tools and Trusted Expertise

Sewer problems can be messy, disruptive, and potentially hazardous.

Princeton Air offers full-service sewer line diagnostics and repair to restore system performance and protect your property. We serve homeowners across Hamilton Township, Edison, and the surrounding communities. Accurate detection saves time, prevents property damage, and reduces long-term repair costs.

We use modern tools and trenchless techniques where possible to minimize disruption to your yard and home. Whether you’re managing an emergency or planning preventative maintenance, Princeton Air’s sewer services are designed with reliable service, honest communication, and professional results.

Years in Business

Skilled employees

Emergency Service

Trucks on the Road


Decades of Sewer Work in New Jersey Homes

Sewer lines are one of the least visible parts of a home’s plumbing, and one of the most consequential when something goes wrong.

Princeton Air has worked on New Jersey sewer lines for generations, from the clay and cast iron still running under older homes in Princeton and New Brunswick to the PVC systems installed in newer construction throughout the region. That range of experience matters because sewer work isn’t one-size-fits-all. The right diagnosis on an 80-year-old line uses different tools and different expertise than a 15-year-old one.

We bring the right equipment, the right diagnostic approach, and honest recommendations to every sewer call. Whether the problem is a single clog or a line that’s reached the end of its service life, we help you understand what’s actually happening and what your options are.

4.7
Based on 6463 reviews
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(609) 799-3434

What to Expect When You Call Us About a Sewer Problem

Sewer trouble is stressful, and it helps to know what happens next.

Our process is designed to get answers quickly and keep the work as contained as possible.

Call Princeton Air or schedule online, and we’ll get the details that help us arrive prepared. For active backups or flooding, we move emergency sewer calls ahead of routine work.

A licensed plumber arrives, locates the cleanout access, and runs whatever diagnostic fits the situation, whether that’s a visual inspection, a camera run, or a pressure test. You see what we see, and we explain what it means in plain language.

Before any work starts, you get a clear scope and a real number. We complete the work, verify the line is flowing correctly afterward, and leave the site as clean as possible given what the job required.

What Our Customers Are Saying

100% Satisfaction Guarantee

4.7
Based on 6463 reviews
As a second generation McAllister, now, Princeton customer in Atlantic County, I am pleased to report another successful system installation. This year it is a state-of-the-art Combi water heater and HVAC installation at the seashore. Scheduling occurred with "military precision." The bevy of workers and equipment arrived on time — all friendly and informative. By the second day all done, manual provided & questions answered. Always a good crew to have onsite. Company was also very helpful in scheduling my A/C system maintenance at the same time as all the other work beating the start of the summer season.
Service man Ryan is always very professional and thorough and takes the time to explain whatโ€™s going on with our heating and air-conditioning system.
I waited all day three times for the repairman. I am going to change my service provider.
Technician was very good.
Prompt, polite, informative, professional, thorough
Ryan G arrived promptly to my home to see why my air conditioning unit wasn't working. He clearly explained upfront the charges for diagnosing the problem. He quickly discovered the source of the issue and showed me pictures of the clogged a/c pipe and explained the work he would be doing. After the work was completed, he showed me how much debris he pumped out of the pipe and explained the charges which were very reasonable. I was thoroughly happy with the service that Ryan G provided. His descriptions and instructions were very clear. I would highly recommend Ryan G. & Princeton Air to all !
Our tech Dominic was Great!!
Princeton Air did a great job installing my new Carrier Furnace and A/C system. Devin and Woody were really polite and professional. Great experience and thorough cleanup. Also, Joe was a really professional electrician, and a really nice guy.
Iโ€™m very happy with my new system.
Thank you Princeton Air.
Latrell and Norman two very hard workers ran into situations replacing a compressor on our air conditioning unit but kept us informed as to their progress. It was frustrating for them on hottest day of year but they kept their professional and customer service attitudes up in a pleasant manner. Two excellent maintenance service repair professionals.
Excelente servicio, el tรฉcnico Dominic muy profesional y muy amable. 100% recomendable
Ali was great! We have a very confusing system here at the office and Ali went over and above and let us know what happened, what he did to fix it, and an action plan going forward. He also provided with solutions and recommendations to corporate in his work order, providing me with peace of mind that our company and the people who need to know what is going on.
Back to normal
They sent someone out when my Central Air died in the middle of a heatwave; it turned out to be frozen so they had to return after it thawed, but everything was timely and I felt well taken care of. Dispatchers, office staff and my tech, Cruise, were all excellent. I was up and running by noon!
Very knowledgeable and professional Navien tech.
Maurice Gaines was friendly, helpful, knowledgeable and efficient! I've used Princeton Air's services a few times now and it's always been a good experience.
Latrelle did an excellent job
I had issues with my A/C unit that would sporadically not turn on and wouldnโ€™t be able to reach the desired set temperature. I had a service contract with the utility company , who I called out 3 times to fix the issue and each time they couldnโ€™t find anything wrong. This time I called Princeton Air, was able to book online and they came out the next day. Ryan came to my house and listened to the entire history of my A/C issues. He was able to troubleshoot and quickly found there was a wiring issue which he was able to correct that day. He educated me on my unit and explained in detail to me everything he did along the way. Thank you Ryan, you are very talented in your skill.
Maurice was terrific and solved the problem very quickly. I highly recommend Princeton Air.
I like to thank Dylan very much. He came to service my AC unit and he found that it was not in service. The refrigerant had leaked out through the coils. Coils were shot. I would have never thought this being a 2-Year-Old AC unit. But fortunately, I did get a service policy and it was under warranty which saved me. Thank you Joe and Tyler also and the girls in the office are just wonderful and will definitely work with you. I've been with this company for over 20 some years and they've always been professional…
Our Tech Dominic was Awesome!! Thank you so much!!
On time. Completed work on all units … Heater, air conditioner, and hot water heater … Within the time frame.
After a few mishaps, Princeton Air came through and got my AC system running when the temperatures are soaring.

Thanks to Will and my technician, Alberto, for getting everything fixed.
Responsive, knowledgeable, dependable, & honest. Thank you for getting out heat up & running!

Update:10/12/18
Chris S got the heat last year and remembered when he arrived today, asked if it had a problem since. He came back to do a PM on the heater and while he was waiting for me to arrive, he opened up the air conditioner to inspect it and saw the coils were filthy. Took out his hose and cleaned them. Then when done, did the heater PM and then โ€œsaid I just want to verify that ringing noise went away. Your house will cool much faster now!โ€ I really like what Princeton air offers, quality and care, diagnose and fix. Not rushing to get to the next job. Theyโ€™re so good I got the year round service plan.

Update may 2025&2026
Maurice is fantastic.
Prompt and knowledgeable. Great technician.
There was an urgent need for a mold problem to be handled in a bathroom. They quickly identified the problem, tested the seriousness, and took care of it – in a very timely fashion. They communicated with me all along the way so I could fully comprehend what was going on. All the people were very knowledgeable, pleasant and accommodating. My experience with them was excellent, and I would highly recommend them.
Eric M. was prompt, professional, courteous and quite helpful. I become a better consumer when I understand the problem & possible solutions. Eric was willing to answer my questions and made me feel secure that he would follow up to help fix our problem.

New review: 2/6/2018
Notice a problem with the humidity in my home, called and got a service appointment in the same day. Will D came out and sure enough, confirmed there was a problem, explained what exactly was happening, why it was happening and how to check that it was working correctly. His demeanor was pleasant, he was professional and seemed to be quite knowledge!

Sewer Inspections

A sewer inspection is how homeowners find out what’s actually happening underground before it becomes an emergency.

Most sewer problems develop slowly, which means most of them can be caught and addressed before they turn into backups or line breaks. Sewer inspections are a common part of home purchases, a smart move on older homes, and a useful answer to recurring drain problems that keep coming back.

Before closing on a home, a sewer inspection tells you whether you’re buying into a line that’s going to need significant work soon. Our plumbers run the inspection, document what we find, and give you a clear report you can factor into the purchase decision.

When drains keep clogging even after repeated clearings, the real problem usually lives further down the line. A sewer inspection finds the actual cause, whether that’s a partial obstruction, a belly in the line, or a structural issue that needs attention.

After sewer line repairs, a follow-up inspection confirms the work corrected the problem and identifies anything else developing nearby. This is the step that separates a repair that holds from one that fails a year later.

Tree roots growing into sewer joints are the single most common cause of sewer problems in older New Jersey neighborhoods. Mature tree coverage in Montclair, Westfield, and similar older communities makes root intrusion a regular concern. Inspections specifically targeting root intrusion show exactly where roots have entered the line and how much of the pipe they’ve compromised.

Homes with clay or cast iron sewer lines benefit from regular inspection even without active symptoms. Properties in Morristown and other historic neighborhoods often have original lines that have been in service for decades, and small issues caught during a yearly check stay small. Issues ignored until symptoms appear are usually much larger by then.

(609) 799-3434

Camera Sewer Inspections

A camera sewer inspection is the most precise diagnostic tool available for underground plumbing work.

A small, high-resolution camera runs through the sewer line on a flexible cable, sending video back to a screen where the plumber and the homeowner can see exactly what’s happening inside the pipe. For a lot of sewer problems, that video is the difference between guessing and knowing.

Camera inspection shows the blockage, how far down the line it sits, and what it’s made of. That information changes the approach. A grease plug gets cleared differently from tree roots, and neither gets treated like a collapsed section of pipe.

Hairline cracks, offset joints, and partial collapses are invisible from the surface but clearly visible on camera. Catching structural problems early often means a targeted repair instead of a full line replacement later.

On older properties where the original sewer layout has been lost, camera inspection paired with a locator tool traces the actual path and depth of the line. This is especially useful on older homes in Mount Laurel and similar communities where record-keeping from the original construction may be incomplete. That information is essential before any excavation work begins.

A camera inspection report with video provides verifiable documentation of a sewer line’s condition. For home sales across Princeton and other active real estate markets, inspection documentation is increasingly part of standard due diligence, and it’s equally valuable during insurance claims or disputes with municipal authorities.

A camera runs through an existing cleanout or drain access point, which means most sewer inspections happen without any digging at all. The only disturbance is to your schedule for the time we’re on-site.


(609) 799-3434

Sewer Line Repair

Most sewer line problems can be fixed without replacing the entire line, and repair is almost always the less disruptive choice when it’s the right one.

Our plumbers diagnose the specific problem, explain the repair options, and walk through what each approach involves before work begins. Where trenchless techniques apply, we use them to keep excavation work to a minimum.

A cracked section of pipe, a broken joint, or a collapsed area isolated to one stretch of line usually doesn’t require replacing the full run. Spot repair addresses the specific problem and leaves the rest of the line in service.

When roots have grown into the line, we clear them mechanically and, where appropriate, install a root barrier or apply a chemical treatment to slow regrowth. Chronic root intrusion is a familiar problem in established neighborhoods across Hopewell and surrounding areas with mature tree cover. For lines with recurring root problems, this approach is often a long-term alternative to full replacement.

Cured-in-place pipe lining creates a new, joint-free pipe inside the existing line without excavation. For properties with finished landscaping or limited yard access, especially in denser areas like New Brunswick, trenchless lining protects the property while restoring the line. It extends service life significantly on lines with multiple small problems or surface damage that hasn’t reached the point of requiring replacement.

The connection between your home’s plumbing and the main sewer line is a common failure point. Our plumbers repair leaks at the lateral, whether the problem is a deteriorated joint, a failed seal, or damage from settling.

Functional cleanout access is how future sewer work stays quick and clean. Where a home doesn’t have a cleanout, or where the existing one has failed, we add or repair the cleanout so future service calls don’t require excavation.


Sewer Line Replacement

Sometimes the right answer isn’t repair. Sewer line replacement is the permanent fix when a line has deteriorated past the point of reliable repair.

Our plumbers help homeowners understand when replacement is actually the better value, what the project involves, and what techniques minimize the impact on your property. Trenchless replacement, where applicable, gets a new line in place without tearing up your yard.

Clay and cast iron sewer lines have service lives measured in decades, and eventually those decades run out. On older properties across Trenton and the surrounding region, original lines that have been in the ground since the mid-twentieth century are finally reaching that point. When a line has reached that point, continued repairs become a losing proposition. Full replacement with modern materials restores reliability for another generation.

Pipe bursting is a trenchless replacement technique that pulls a new pipe through the path of the old one while simultaneously breaking up and displacing the old pipe. For straight runs without complex routing, it’s often the fastest, least disruptive way to replace a line completely.

Some replacements still require opening a trench, particularly where the line has significant depth, complex routing, or conditions that rule out trenchless methods. When excavation is necessary, our plumbers handle the permitting and the dig itself with care for your property.

Modern sewer lines use PVC, HDPE, or cast iron depending on the application and local code requirements. We explain the options and recommend the material that fits your situation, accounting for soil conditions, depth, and expected service life.

Sewer line replacement connects to municipal infrastructure at the property line or the street. Each New Jersey township has its own permit process and inspection requirements, from Toms River out through Mount Laurel and beyond. We coordinate with the local utility, handle the permits, and ensure the connection meets the requirements that allow the new line to be inspected and approved.

(609) 799-3434


(609) 799-3434

Why Homeowners Call Princeton Air for Sewer Work

Sewer work that starts with excavation before diagnosis often means unnecessary damage to your yard. We run cameras, locators, and other diagnostic tools first, so when we do open ground, we know exactly where and why.

Not every sewer job needs a trench across your lawn. Where trenchless pipe lining or pipe bursting is the right fit for the problem, we use those techniques and save the excavation work for cases that actually require it.

A 100-year-old clay sewer line in a Princeton neighborhood presents very different problems from a 20-year-old PVC line in a newer development. We’ve worked on both, and everything in between, for long enough to know what the right answer usually is before we show up.

A sewer backing up into the house isn’t a problem that waits. Our emergency team responds to active sewer emergencies nights, weekends, and holidays across Monroe Township and the surrounding service area, because the damage compounds by the hour.

Some sewer lines can be repaired for another ten years of service. Some need replacement now. We explain which situation you’re in and why, give you the real math, and let you make the call without pressure either way.

Sewer work involves permits and coordination with municipal utilities in most New Jersey townships. We handle that side of the job so you don’t have to, including inspections and sign-offs that close out the project properly.


Need Reliable Sewer Service? We’re Here to Help

Call Princeton Air today to schedule a consultation or request a free estimate for sewer services in New Jersey.

Whether you’re dealing with an active backup, planning a pre-purchase inspection, or weighing repair against replacement on an aging line, our licensed plumbers are ready to help. Trust Princeton Air to keep your sewer system flowing smoothly, with honest diagnostics, trenchless techniques where they apply, and the kind of careful work your property deserves.

Princeton Air Technician


FAQs About Sewer Services

How do I know if my sewer line has a problem?

Common signs include multiple drains backing up simultaneously, gurgling sounds from toilets when other fixtures are used, sewage odors inside or outside the home, slow drainage that affects the whole house rather than one fixture, and wet or unusually lush patches in the yard above the sewer line. Any of these is worth investigating before it becomes an emergency.

Do I need a sewer inspection before buying a home?

A sewer inspection is one of the most valuable pre-purchase inspections available, especially on older homes. Standard home inspections typically don’t include the sewer line, which means major problems can remain undiscovered until after closing. A camera inspection adds a few hundred dollars to your due diligence and can prevent tens of thousands in surprise repairs.

What is trenchless sewer repair, and is it always an option?

Trenchless techniques, including pipe lining and pipe bursting, repair or replace sewer lines without digging a trench across your property. They work well for many sewer problems but not all. Complex routing, severe collapses, or certain soil conditions may require traditional excavation. We evaluate each situation and explain whether trenchless is a fit.

How long does a sewer line last?

Sewer line lifespan depends heavily on material and conditions. Clay sewer lines can last 50 to 60 years, cast iron typically 75 to 100 years, and modern PVC lines 100 years or more under favorable conditions. Tree roots, soil shifting, and ground settling can all shorten those lifespans significantly.

Do you offer emergency sewer services?

Yes. Sewer backups inside the home or significant leaks at the sewer line require immediate response to prevent property damage and health concerns. Princeton Air provides 24/7 emergency sewer service across New Jersey.

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