How to Hire a Sewer Contractor in North Dakota

Who licenses sewer contractors in North Dakota

The North Dakota State Plumbing Board licenses the trade statewide. On the plumbing side it issues apprentice, journeyman and master plumber licenses; on the underground side a separate ladder of sewer and water apprentice, installer and contractor. The board's rule is blunt: anyone installing sewer or water service in North Dakota must hold one of its licenses, and connecting to a public sewer takes a master plumber or a sewer and water contractor. Most North Dakota sewer firms are excavation companies holding the sewer and water license, with a master plumber brought in where work passes inside the foundation. Separately, the Secretary of State requires a contractor license for any job above four thousand dollars, in classes A through D by contract value, with a bond at the higher classes. Verify both: the plumbing board's online license lookup lists plumbers and sewer and water licensees by name, and the Secretary of State's search shows the contractor class.

Permits and inspections

Plumbing permits in North Dakota are local in the cities and state-run elsewhere. Fargo, West Fargo, Bismarck and Grand Forks each have a city plumbing inspector who issues the permit for a sewer service repair and inspects it; Fargo also licenses the excavators allowed to open its streets. In smaller towns and rural areas, the State Plumbing Board's district inspectors do the inspection, and the installer files a plumbing installation certificate with the board. A cut in a city street needs an excavation permit from engineering or public works. Inspectors want to see bedding and the connection at the main before backfill; a lined pipe is accepted on video. North Dakota One Call, reached through 811, requires two working days' notice. The licensed contractor pulls the permits.

Who owns the pipe under the street

Fargo's written policy is the clearest in North Dakota and typical of the rest. The owner is responsible for the sanitary sewer service from the building to the connection at the public main, including the wye, and pays for whatever pavement has to be restored. The city maintains only the main, with one exception: when Engineering rebuilds a street, it renews services from the main to the boulevard at city expense unless the owner opts out, and owner-occupied homes can spread a private repair over fifteen years as a special assessment. Bismarck, Grand Forks and Minot follow the same owner-to-the-main model as far as their published material shows, though each handles the tap differently, so ask who rebuilds a failed wye. North Dakota has no point-of-sale sewer inspection law.

What is under North Dakota, and why it shapes the bid

The Red River Valley is the hard case. Fargo and Grand Forks sit on lake-bottom clay that swells, shrinks and slumps, and the frost line pushes sewers seven to nine feet deep, so any open trench needs a box or benching and the restoration bill grows with every foot. Bismarck and Minot are on glacial till with sand and gravel lenses, easier digging but with groundwater near the rivers. Pipe tracks the eras: vitrified clay in the prewar cores, Orangeburg and cast iron in postwar neighborhoods, PVC after the 1970s. Clay joints pulled apart by soil movement and boulevard tree roots are the common failures. Depth is why lining and pipe bursting are often quoted first in Fargo; two pits beat a nine-foot trench down a frozen yard.

What a North Dakota sewer bid must include

• The State Plumbing Board license number, sewer and water contractor or master plumber, plus the Secretary of State contractor class.
• The city plumbing permit and, in Fargo, confirmation that the excavator is on the city's licensed list.
• Trench depth to the main in feet, with shoring and dewatering priced for Red River Valley clay.
• Street excavation permit and pavement restoration in the right-of-way, which the owner pays for under Fargo's policy.
• Camera footage before and after, including the wye at the main.

The full checklist, for any state, is on what a sewer bid should include.

Red flags in North Dakota

• A septic installer or excavator with no State Plumbing Board sewer and water license offering to connect to a North Dakota city main.
• No Secretary of State contractor license on a job over four thousand dollars.
• A trench bid with no shoring line for a sewer eight feet deep in Fargo clay.
• A quote to dig the whole service before a camera has found the failure.

Finding a sewer contractor in North Dakota

North Dakota does not yet have a verified contractor listed on this site, which is why the number on this page rings the national line. Call it or send the form with the property address and what the symptoms or the camera are showing, and we will locate a qualified sewer contractor near you, screen them the same way we screen every listing, and make the introduction. There is no charge for that. You can also search the CIPP Verified Installer directory yourself.

Estimates are free. Call now. (855) 804-1434

Where North Dakota property owners ask for help most

The rules above apply statewide; the communities below are the ones that generate the most questions.

North Dakota sewer contractor questions

Does a North Dakota sewer contractor need a plumber's license?

Not necessarily. North Dakota's State Plumbing Board issues a separate sewer and water contractor license, and either that or a master plumber license is legal for connecting a service to a public sewer. Check the name in the board's online lookup.

Who pays to fix a sewer service under the street in Fargo, North Dakota?

The property owner, under Fargo's sewer repair policy. Responsibility runs from the building to the connection at the main, including the wye and pavement restoration. The exception is a city street reconstruction, when Fargo renews services to the boulevard itself. Owner-occupants can finance a repair as a fifteen-year special assessment.

How deep are sewer lines in North Dakota?

Deep. Frost protection puts sewers seven to nine feet down in Fargo and Grand Forks, and five to seven feet is common in Bismarck. That depth is why North Dakota bids carry shoring costs and why lining or pipe bursting is often quoted first.

Who inspects a lateral repair outside the big North Dakota cities?

The State Plumbing Board's district inspectors. In towns without a city plumbing inspector, the licensed installer files a plumbing installation certificate with the board and the state inspector views the work. Fargo, West Fargo, Bismarck and Grand Forks have their own inspectors.

Does North Dakota require a sewer inspection when a house sells?

No. North Dakota has no point-of-sale lateral ordinance at the state or city level. With clay and Orangeburg pipe common in older Fargo and Bismarck neighborhoods, buyers should still arrange a camera inspection before closing.

The short version for North Dakota

Get the line televised and ask for the recording. Look the company up twice, once in the State Plumbing Board lookup for the sewer and water or master plumber license and once in the Secretary of State search for the contractor class. In Fargo and most of North Dakota the pipe is yours to the main, street included, so the bid needs restoration and the permit number. In winter, ask whether lining avoids the trench entirely.

Estimates are free. Call now. (855) 804-1434

Sources checked for this page: www.ndplumbingboard.gov/faq · fargond.gov/city-government/departments/water-reclamation/sa... · download.fargond.gov/0/sewer_repair_policy_-_2026.pdf