Basement Leak Repair in Mandan, ND
We repair leaking supply lines, drain pipes, sump systems and wall seepage in basements across Mandan, ND, frequently the same day you call.
- Pipe & Drain Repairs
- Upfront Clear Pricing
- Quick Leak Detection
- Moisture Meter and Camera Testing
Stop the Water and Protect Your Lower Level in Mandan, ND.
Contact HPN Plumbing today for a careful inspection and lasting repair.
Basement Leak Repair in Mandan, ND That Fixes the Source, Not Just the Puddle
HPN Plumbing specializes in comprehensive basement leak repair. We understand the challenges that North Dakota soil conditions and storms pose to foundations, leading to leaks, water intrusion, and possible structural damage. Heavy summer thunderstorms can also overwhelm storm sewers, so backwater valves help protect finished basements.
Our expertise includes:
- Sump pump, floor drain and backwater valve installation and service
- Foundation Crack Injection Repairs
- Repair of cracked cast iron, ABS, PVC and copper lines in basements

Additional Plumbing Maintenance Services in Mandan, ND
Our maintenance and specialty plumbing services in Mandan, ND protect your home year-round and extend the life of every system.

Customers
Why Choose HPN Plumbing for Basement Leak Repair in Mandan, ND?
Basement water is tricky because a plumbing leak, a condensation problem and soil seepage can look identical on the floor. We test before we cut, so you pay to fix the right problem.
- Clean Repairs, We protect finished floors and walls and open only what we need to access the pipe.
- Diagnosis First, We verify the water source with meters, dye tests and pressure tests before any repair.
- Lasting Fixes, We address the cause, such as a failed fitting or poor drainage, so the leak does not return.
Citywide Coverage
We provide dependable, high-quality basement waterproofing services across the entire Mandan area, ensuring no homeowner is left with a wet basement.
Experienced Team
Our team of licensed plumbers and foundation specialists has broad experience with basement leak repair. They are trained in current techniques and use advanced equipment to ensure a precise and durable fix.
Safety-First Approach
Safety is paramount in all our basement leak repair projects. We carefully follow all safety protocols to protect your home and our team, especially when working in confined spaces or with specialized equipment.
Trusted Certified Mandan Plumbing Services Professionals
At HPN Plumbing, we take pride in providing licensed, certified plumbing services throughout Mandan, ND. Backed by leading industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationProven Basement Leak Repair Services in Mandan, ND
Drain and Sewer Pipe Leak Repair in Mandan, ND
Cast iron drain stacks in older homes crack and scale with age, and plastic joints can separate if a line was poorly supported. These leaks often show up only when an upstairs fixture runs. We run water through each drain while watching the basement, then verify the crack with a camera. Repairs range from a single section swap to replacing an entire stack with PVC or ABS.

Foundation Crack Repair in Mandan
Foundation cracks are a common entry point for basement water leaks, especially in homes built on soil that swells and shrinks. Frost heave can shift soil around sewer lines and crack joints, which often shows up as slow drains or backups. We utilize epoxy and polyurethane injection techniques to seal these cracks, preventing water infiltration and reinforcing your foundation. Our methods are tailored to the specific type and size of the crack, ensuring a durable repair.
Commercial Basement Waterproofing in Mandan
Commercial properties in Mandan also face the risk of basement leaks, which can damage inventory and equipment and interrupt business operations. HPN Plumbing offers specialized commercial basement leak repair services, providing robust and scalable solutions tailored to the demands of business establishments. We minimize downtime and protect your assets with efficient, professional service.
Sump Pump Repair and Installation in Mandan, ND
Many basements rely on a sump pit to handle storm runoff and groundwater. Heavy summer thunderstorms can also overload storm sewers, so backwater valves help protect finished basements. Pumps from brands like Zoeller, Liberty and Wayne fail most often from a stuck float or a burned-out motor after sitting idle for long stretches. We repair or replace the pump, check the check valve and route the discharge well away from the foundation. A battery backup is worth considering because big storms often knock out power.
Interior Drainage Systems in Mandan
When exterior excavation isn't practical, interior drainage systems provide an effective solution for managing basement leaks. We install perimeter drains along the basement walls, collecting water before it can surface and directing it to a sump pump for removal. This system is less disruptive and can be a cost-effective way to dry out a wet basement.
Sump Pump Installation and Repair in Mandan
A properly functioning sump pump is crucial for preventing basement flooding, especially during heavy downpours. HPN Plumbing provides expert sump pump installation, repair, and maintenance services. We ensure your pump is correctly sized and installed to handle the water volume, giving you peace of mind.
Floor Drain and Backwater Valve Repair in Mandan
A basement floor drain that backs up during heavy use or a storm typically points to a blockage or a failed trap. We clear the drain, check the line to the main sewer and replace cracked traps and covers. Installing a backwater valve stops sewage from pushing back into the basement if the main line surcharges. We set the valve where it can be serviced easily.

Basement Leak Repair Cost Comparison in Mandan, ND
A simple fitting or supply line repair typically costs $200 to $600. Drain stack repairs run $500 to $2,500 depending on access and pipe material. A new sump pump installed typically costs $600 to $1,800, while interior drain channels and full seepage systems can run several thousand dollars. We explain each option in writing so you can compare the fix against the risk.
Basement Leak Repairs Near Me in Mandan, ND
A local plumber also understands how the soil and storms around Mandan affect lower levels. Frost heave can shift soil around sewer lines and crack joints, which often shows up as slow drains or backups. We build those conditions into every repair we recommend.
If you are searching for basement leak repair near me, speed matters because water spreads under carpet and into drywall quickly. Our crews work throughout the Mandan area and can usually reach you the same day. We bring the detection tools needed to find the leak on the first visit.
HPN Plumbing at a Glance
- Licensed and insured plumbers serving Mandan, ND
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.9-star rated by 408+ North Dakota customers
Mandan Map
Mandan Information
- Population
- 24,586
- Area codes
- Local
- Service area
- Mandan and communities within 40 miles
- Nearby
- Bismarck, Dickinson, Minot, Jamestown
Basements in Mandan, ND can take on water from storm runoff, saturated soil and corroded pipes, so leaks need to be traced to the real source to stay fixed. Many rural homes get water from private wells or rural water systems, and iron and sulfur odors are common complaints.
Expert Services
Trust our professionals for reliable HPN Plumbing solutions in Mandan, ND.
Our Specialized Plumbing Services in Mandan, ND
At HPN Plumbing, we provide a complete range of plumbing services across Mandan, ND. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Basement Leak Repair Process Works in Mandan, ND
We follow a systematic approach to diagnose, repair, and prevent future basement leaks in Mandan, ND.
Request a Quote
Call (701) 403-1348 and describe where you see water and when it appears. We schedule a visit, often the same day, and explain our inspection fee up front.
Trace the Source
Our technician uses moisture meters, thermal imaging and pressure or dye tests to pinpoint the leak. We show you what we found and give you written repair options.
Repair and Verify
We make the repair, then retest the line or drain under real use. You get a summary of the work and advice to keep the basement dry.
Frequently Asked Questions About Basement Leak Repair in Mandan
The cost of basement leak repair in Mandan, ND can vary significantly, typically ranging from $500 for minor crack repairs to $15,000 or more for extensive exterior waterproofing or drainage system installations. Factors include the leak's severity, accessibility, and the chosen repair method. We provide a written estimate after a thorough inspection.
If your basement leak is due to a burst pipe, HPN Plumbing will first address the plumbing issue by repairing or replacing the damaged section. After the active leak is stopped, we can then assess any resulting water damage to your foundation or basement structure and suggest appropriate repairs to prevent future issues. Frozen pipes are a serious and regular winter risk in North Dakota, and a single cold night can split a line in an exterior wall.
We often install Zoeller, Liberty and Wayne pumps because they are durable and parts are easy to find. We match the horsepower to your pit and lift height. Battery backup units are an option for storm outages.
For minor crack repairs, a permit may not be required. However, significant projects involving excavation, structural changes, or major plumbing modifications for drain tile systems frequently require permits from the Mandan building department. HPN Plumbing handles all necessary permit applications to ensure compliance.
Small repairs typically do not need a permit, but replacing drain stacks, adding a sump discharge or installing new fixtures may. Requirements vary by city and county. We handle any permits your project needs.
Basement leak repair specifically addresses existing points of water entry, like sealing cracks or fixing drainage. Basement waterproofing is a broader term that covers all strategies, both proactive and reactive, to prevent water intrusion, including repairs and preventive measures like exterior membranes or improved grading. HPN Plumbing offers both in Mandan.
Common signs include damp spots on walls or floors, a musty odor, visible mold or mildew growth, efflorescence, which is a white powdery residue on concrete, peeling paint, or standing water after heavy rains. If you notice any of these in your Mandan home, it's time for an inspection.
Heavy storms dump a lot of water quickly, and the soil around the foundation cannot absorb it fast enough. Heavy summer thunderstorms can also overload storm sewers, so backwater valves help protect finished basements. The water then pushes through wall joints, cracks and pipe penetrations. Better grading, gutters and a sump system usually solve it.
What People Are Saying About Our Plumbing Experts?

Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Mandan, ND
Mark T.
When our office needed drain cleaning, HPN Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Devils Lake, ND
Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Minot AFB, ND
Patricia H.
We had a slab leak that two other companies could not find. HPN Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Minot, ND
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Minot AFB, ND
James P.
Our commercial plumbing system had a leak under the sink, and HPN Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Bismarck, ND













