Sewer Line Problems? We Fix Them Right.

Expert sewer line repair, sewer main replacement, and new sewer main installation for homes and businesses across the Bismarck-Mandan area.

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From Emergency Repairs to Full Remodels

Drain Cleaning

Slow drains, stubborn clogs, and backed-up lines cleared fast. From kitchen sinks to main drains — we fix it right the first time.

Sewer Camera Inspection

See exactly what’s happening inside your sewer line. HD video inspections for diagnostics, pre-purchase peace of mind, and $100 off every scope.

Sewer Line Repair & Replacement

From cracked pipes and root intrusion to full sewer main installations — we handle the big jobs other plumbers won’t.

Water Heaters

Traditional and tankless installation, repair, and replacement. No hot water? We’ll get it back — fast. $200 off water heater replacement.

Toilet Repair & Installation

Running toilets, clogs, leaks at the base, and full replacements. Quick, clean, done right.

Pipe & Leak Services

Leak detection, pipe repair, repiping, and water line replacement. Hidden leaks found and fixed before they cause serious damage.

Frozen Pipe Repair

North Dakota winters hit hard. Frozen lines, burst pipes, and emergency thawing, we respond fast when the cold strikes.

Sump Pumps

Installation, repair, and battery backup systems. Stay ahead of spring thaw and basement flooding before it starts.

Reverse Osmosis System

Clean, pure drinking water straight from your tap. Under-sink and whole-house RO systems installed and maintained.

Water Treatment & Filtration

Hard water, bad taste, and sediment problems solved. Water softeners, whole-house filtration, and well water treatment.

Septic Services

Pumping, maintenance, inspections, and full system repair. Keeping rural North Dakota systems running right.

Remodel Plumbing

Bathroom gut remodels, wet space builds, kitchen upgrades, and full rough-ins. Every option, every budget, we do it all.

Commercial Plumbing

Drain cleaning, backflow testing, and full commercial repair and maintenance. Restaurants, offices, and property management.

When Your Sewer Line Needs Attention

Your sewer line carries everything from your home’s drains out to the city main. When that line cracks, collapses, or gets clogged by tree roots, the consequences are serious: sewage backing up into your basement, foul smells in your yard, and potential property damage. A broken sewer line doesn’t fix itself, and the longer you wait, the more expensive the repair becomes.

We handle sewer line repair, sewer pipe repair, sewer main replacement, and new sewer main installation for residential and commercial properties throughout Bismarck, Mandan, Lincoln, Wilton, and surrounding communities in Burleigh and Morton Counties. Whether you need sewer backup repair from a root-damaged line or a full sewer main connection to the city system, our team has the equipment and experience to get it done.

Aging sewer infrastructure is a growing concern across the country. According to the American Society of Civil Engineers, the EPA determined that the nation’s water and wastewater infrastructure needs total $625 billion over the next 20 years. Many sewer pipes installed during the post-war building boom are now reaching the end of their useful lifespan of 50 to 75 years. For older homes in the Bismarck-Mandan area, that timeline is here. A cracked sewer pipe or collapsed sewer line isn’t uncommon in homes built before 1990.

Signs Your Sewer Line Is Failing

Multiple Drains Backing Up at Once

When more than one drain in your home backs up at the same time, the problem isn’t at an individual fixture. It’s in your main sewer line. Toilets, showers, and floor drains all sharing the same backup is a clear sign of a main line blockage or failure.

Sewage Smell Outside Your House

If you notice a sewage smell outside house near your yard, driveway, or foundation, it could mean your sewer line has cracked and is leaking waste into the soil. This is both a health concern and a sign of structural pipe failure.

Wet, Soggy Patches in Your Yard

Unexplained wet spots or unusually green patches of grass over your sewer line path often indicate a broken sewer line leaking underground. The moisture and nutrients from sewage feed the grass while saturating the surrounding soil.

Slow Drains Throughout the House

If every drain in your home is slow, not just one, the main sewer line is likely partially blocked. Tree root sewer damage is one of the most common causes in the Bismarck-Mandan area, where mature trees send roots into pipe joints looking for moisture.

Gurgling Toilets or Drains

Gurgling sounds when you flush a toilet or run a sink can indicate a venting issue, but when combined with slow drains, it usually points to a sewer line obstruction. Air gets trapped behind the blockage, causing the gurgling noise.

Foundation Cracks or Settling

A collapsed sewer line under or near your foundation can wash away supporting soil, causing the foundation to crack or settle unevenly. If you notice new foundation cracks along with any of the symptoms above, your sewer line may be the cause.

Sewer Services We Provide

For cracked sewer pipes, joint failures, and localized damage, we can often repair the affected section without replacing the entire line. We excavate to the damaged area, remove the bad section, and install new pipe with proper connections. This is the most cost-effective option when the rest of the line is in good condition.

When a sewer line is too far gone for spot repair, whether from a collapsed sewer, extensive tree root sewer damage, or bellied pipe throughout the run, full replacement is the right call. We remove the old line and install new pipe from your home to the city main or septic connection. How much does sewer line replacement cost? It depends on length, depth, and soil conditions. We provide a detailed, up-front quote after inspecting the job.

We handle new sewer main installation for new construction, lot development, and properties that need a new sewer main connection to the city system. We also perform sewer main replacement for aging or failed mains, including sewer tap connections and sewer line to city main hookups. If your property needs a sewer main upgrade to accommodate a larger building or additional units, we’ll size and install the right system.

If sewage has backed up into your home through a floor drain or toilet, we respond quickly to clear the blockage and identify the cause. Sewer backup repair often leads to discovering a deeper issue like root intrusion, a collapsed section, or a belly in the pipe. We’ll diagnose the problem and give you options.

Some sewer line repairs require sewer excavation to access the damaged pipe. We handle the full process: locating utilities, digging to the line, making the repair or replacement, backfilling, and restoring the surface. We work carefully to minimize disruption to your yard, driveway, or landscaping.

Why Sewer Line Problems Get Worse Fast

A damaged sewer line doesn’t stabilize on its own. A small crack lets in groundwater and tree roots. Roots expand inside the pipe, catching debris and grease until the line is almost fully blocked. A cracked sewer pipe becomes a collapsed sewer when the surrounding soil shifts. What could have been a $2,000 repair becomes a $10,000 replacement because the damage spread while the homeowner waited.

In central North Dakota, freeze-thaw cycles put extra stress on underground pipes. Soil expands when it freezes and contracts when it thaws, which can shift pipe joints and crack older clay or cast iron sewer lines. Homes built before 1980 in the Bismarck-Mandan area are most at risk because they often have original sewer lines made from materials that don’t hold up to decades of ground movement.

An EPA survey found that roughly 30% of sewer pipes nationwide are between 40 and 80 years old, and about 10% are more than 80 years old. If your home falls into that age range, a sewer camera inspection can tell you exactly what condition your line is in before an emergency forces your hand.

Your Problem,
Solved in 4 Simple Steps

Step 1

Schedule Service

Call, text, or request service online to book a time that works for you. Our team confirms your appointment and arrives when promised.

Step 2

Assess & Quote

We inspect the issue and explain your options clearly. You’ll receive straightforward pricing before any work begins, no surprises, no pressure.

Step 3

We Get to Work

Once approved, we complete the job using high-quality parts and proven methods. Boot covers on, workspace protected, and your home treated with care.

Step 4

Final Check & Guarantee

Before we leave, we review the work with you and make sure everything meets our standards. Every job is backed by our satisfaction guarantee.

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Our Awesome Reviews

Alicia Wehri

If you’re looking for someone super professional, does the job right, and very timely, I’d highly recommend Premium Plumbing & Rooter. I had Joe out for the first time on a sewer-related emergency, resulting in the need to replace 10 feet of sewer line this past week, and I was highly impressed. The guy really does it all, and does it very well. Keep it up!

15Feb2026

John Dukes

While a plumbing emergency is never fun, Premium Plumbing got here quick and did a great job dealing with the crisis. It was a pleasure to watch people that know their trade and I’ll definitely use them again if I have another plumbing issue. Reasonably priced too.

21Feb2026

Krystal Tkach

What a great company! Came out the same day, free estimate, and was able to get me in the same day to fix my issue! 5 Stars all the way! Will definitely use this company for any and all in the future.

10March2025

Carleen Porten

I received wonderful service and honesty!! I was told what was needed and nothing extra. Their work is guaranteed for a year and if I have any issues, I am to call right away and the problem will be resolved. I highly recommend Premium Plumbing and Rooter. It’s wonderful to find a plumber who is willing to come and take care of any plumbing problems.

18Jan2026

HaLea Ohlmacher

They came to our house today when i called this morning as our sewage ejector system wasnt working properly and needed a new one they came to our house looked at it for free and went out and got the new sewage pump system and all the parts for it they cleaned the hole where the pump goes and put the new one in and made sure the pump worked and everything before they left our house

5Jan2026

Christina Feland

If I could give higher than five stars I would! Joe and his team were absolutely wonderful to work with. They were able to fix decades worth of corrosion to the plumbing in our home. Their work was done with a level of artistry I’ve never experienced with a plumber before. Joe was able to give us more space in our laundry room by simplifying and correcting existing plumbing. Once the project was completed they thoroughly explained all that was done as well as how the work will aid future projects.  An added bonus, they cleaned up after themselves, were respectful of the property and were extremely conscientious of the pets.

22March2026

Proudly Serving Central North Dakota

From the heart of Bismarck to the rural communities along the Missouri River, Premium Plumbing & Rooter is your local plumbing team across Burleigh, Morton, and McLean counties. Whether you’re in a newer subdivision in Lincoln or a farmstead near Wilton, we bring the same level of care and professionalism to every call.

Sewer Line Questions

How do I know if my sewer line needs replacing?

The clearest signs are multiple drain backups, sewage smells in your yard, wet spots over the sewer line path, and recurring clogs that don’t respond to drain cleaning. A sewer camera inspection is the fastest way to confirm whether you need repair or full replacement.

How much does sewer main replacement cost?

Sewer main replacement cost depends on the length of the run, depth of the pipe, soil conditions, and whether the line connects to the city main or a septic system. We provide a written, up-front quote after inspecting the job. Call (701) 805-9911 to schedule an assessment.

Do you offer trenchless sewer repair?

We evaluate every job to determine the best approach. Some repairs can be completed with minimal excavation depending on the location and type of damage. During your camera inspection, we’ll discuss all available options including trenchless methods where feasible.

Can tree roots really break a sewer line?

Yes. Tree root sewer damage is one of the most common causes of sewer line failure in the Bismarck-Mandan area. Roots enter through small gaps at pipe joints and expand over time, cracking the pipe and catching debris until the line is fully blocked.

Do you handle sewer main connections to the city?

Yes. We handle full sewer main connection and sewer tap work, including new sewer line to city main hookups for new construction, lot splits, and replacement of failed connections. We coordinate with the City of Bismarck and City of Mandan on required permits and inspections.

Sewer Line Problems? We Fix Them Right.