Grease Trap Repair in Williston, ND
Facing a clogged or broken grease trap in Williston, ND? HPN Plumbing provides reliable repair services to keep your kitchen plumbing running smoothly.
- Same-Day Commercial Repairs
- Upfront Pricing
- Prompt, Reliable Service
- Licensed & Insured
Expert Grease Trap Solutions for Commercial Kitchens in Williston, ND.
Our team is ready to diagnose and fix your grease trap issues quickly and correctly.
Reliable Grease Trap Repair Services in Williston, ND
When your grease trap isn't working right, it can lead to serious plumbing issues and steep fines. HPN Plumbing offers prompt and efficient grease trap repair throughout Williston, ND, helping you avoid backups and maintain a sanitary environment.
Our expertise includes:
- Repair damaged baffles, lids, and plumbing connections.
- Replace corroded or failing grease trap components.
- Baffle, inlet tee and outlet tee replacement and repair

Additional Kitchen Plumbing Services in Williston, ND
Our kitchen plumbing services in Williston, ND cover sinks, disposals, dishwashers, and grease traps so your kitchen keeps running without backups or leaks.

Customers
Why Choose HPN Plumbing for Grease Trap Repair in Williston, ND?
Ignoring grease trap problems can lead to costly fines and environmental damage. We offer preventive and emergency repair services to protect your business and the Williston community.
- Preventative Focus, Beyond repairs, we offer advice on maintenance schedules to lengthen the life of your grease trap and prevent future breakdowns.
- Quality Parts, We use manufacturer parts or commercial-grade materials made for grease and heat.
- Accurate Diagnosis, We inspect the trap and connected lines to find precisely what failed.
Citywide Coverage
We repair grease traps for restaurants, cafeterias and commercial kitchens throughout Williston. Our trucks carry parts and equipment for both indoor and outdoor systems.
Experienced Team
Our plumbing team consists of licensed and experienced professionals who are experts in commercial kitchen systems, including all types of grease traps. They receive ongoing training on the latest repair techniques and code updates specific to North Dakota.
Safety-First Approach
Safety is paramount in every grease trap repair we undertake. We adhere strictly to all OSHA guidelines and local Williston safety protocols, ensuring the well-being of our technicians, your staff, and your customers during service.
Trusted Certified Williston Plumbing Services Professionals
At HPN Plumbing, we take pride in providing certified plumbing services throughout Williston, ND. Backed by recognized 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 long-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 CertificationLasting Grease Trap Repair Services in Williston, ND
Inlet and Outlet Tee Repair in Williston, ND
Tees direct flow into and out of the trap at the correct depth. Missing or broken tees allow floating grease to escape into the sewer line. We replace damaged tees with durable PVC or other approved materials. We also check that they are set at the right depth for your unit. This is one of the most common and important grease trap repairs.

Damaged Baffle Repair in Williston
The baffles inside a grease trap are essential for separating FOGs from wastewater. If these baffles are corroded, broken, or dislodged, the trap's efficiency drops sharply, allowing grease into the sewer system. Our service includes inspecting the condition of all baffles and repairing or replacing them as needed, often using durable, corrosion-resistant materials. Proper baffle function is key to compliance with wastewater regulations in Williston.
Leaking Grease Trap Repair in Williston, ND
A leaking grease trap can cause significant property damage, foul odors, and potential health code violations. Leaks often stem from corroded tanks, cracked seams, or failing pipe connections. We use leak detection techniques to locate the source and provide targeted repairs, which may involve patching the tank, sealing connections, or replacing damaged sections of the trap or associated plumbing. Addressing leaks quickly is essential to maintain a sanitary environment and avoid costly remediation in Williston, ND.
Grease Line Clog Repair in Williston, ND
Grease that hardens in the lines before or after the trap can cause backups even when the trap itself is clean. We use hydro jetting to clear the pipe and remove buildup. A camera inspection helps us confirm the line is clear and check for damage. If we find broken or sagging pipe, we can repair the section. This keeps water and waste moving freely.
Grease Trap Odor Control & Repair in Williston
Persistent foul odors emanating from your grease trap are a sign of inefficiency, excessive FOG accumulation, or bacterial growth. Beyond cleaning, our repair services address the root cause, whether it's poor ventilation, sludge buildup, or structural issues preventing proper flow. We ensure all components are working correctly to contain and process waste effectively, eliminating unpleasant smells that can deter customers in Williston.
Grease Interceptor Clog Removal in Williston
The most common grease trap issue is a severe clog caused by accumulated fats, oils, and grease. Our plumbers in Williston use specialized hydro-jetting equipment to fully break down and flush out stubborn blockages from grease traps and their connecting drain lines. This method is highly effective for restoring full flow and preventing immediate recurrence, much more so than chemical drain cleaners which can damage pipes.
Flow Control Device Repair in Williston
Hydromechanical traps rely on a flow control fitting to keep water moving at the rated speed. If this fitting is missing or clogged, the trap can be overwhelmed and grease escapes. We inspect, clean or replace flow control devices during repair visits. We also check the air intake that allows the device to work properly. Correct flow control is essential for a trap to pass inspection.

Lid, Gasket and Riser Repair in Williston, ND
Damaged lids and failed gaskets let odors escape and create safety hazards. Outdoor risers can crack from vehicle traffic or ground movement. We replace lids, install new gaskets and repair or replace risers. Traffic-rated lids are installed where trucks or cars drive over the interceptor. These repairs keep odors in and keep people protected.
Grease Trap Repair Near Me in Williston, ND
Our team is strategically positioned throughout Williston to offer prompt grease trap repair services wherever your business is located. We pride ourselves on being the local plumbing solution, ready to respond quickly to your needs with the right tools and expertise for any grease trap issue.
When you search for 'grease trap repair near me,' you want a local expert who understands the plumbing codes and environmental regulations of Williston, ND. HPN Plumbing is your community's trusted plumbing contractor, providing fast and efficient service to ensure your commercial kitchen operates without interruption.
HPN Plumbing at a Glance
- Licensed and insured plumbers serving Williston, ND
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.9-star rated by 408+ North Dakota customers
Williston Map
Williston Information
- Population
- 27,706
- Area codes
- Local
- Service area
- Williston and communities within 40 miles
- Nearby
- Watford City, Dickinson, Minot AFB, Minot
For homes and businesses in Williston, ND, where cooking is central to family life and local cuisine, efficient grease trap function is critical to prevent costly plumbing issues and comply with environmental standards.
Expert Services
Trust our professionals for reliable HPN Plumbing solutions in Williston, ND.
Our Specialized Plumbing Services in Williston, ND
At HPN Plumbing, we provide a complete range of plumbing services across Williston, 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 Grease Trap Repair Process Works in Williston, ND
We follow a systematic approach to ensure every grease trap repair in Williston, ND is handled with precision and expertise.
Request a Quote
Call (701) 403-1348 or fill out our online form to schedule your grease trap repair service. We will gather initial information about your issue and set up a convenient appointment time.
Diagnosis & Inspection
Our licensed plumber will arrive on site to thoroughly inspect your grease trap and connected plumbing. We use advanced diagnostic tools to pinpoint the exact cause of the problem, whether it's a clog, leak, or component failure.
Expert Repair
Based on our diagnosis, we will explain the repair options and provide a clear, upfront estimate. Once approved, our team will perform the necessary repairs using high-quality parts and industry-best practices, ensuring a lasting solution.
Frequently Asked Questions About Grease Trap Repair in Williston
Minor repairs like gaskets, tees or flow control fittings typically cost $200 to $800. Larger repairs such as baffle rebuilds, riser replacement or lid upgrades can run $1,000 to $3,000 or more. We provide a written estimate before work begins.
Many problems such as broken tees, worn gaskets and damaged lids can be repaired. Cracked tank bodies or badly corroded units typically need replacement.
Minor repairs like clearing a clog or replacing a gasket usually do not require a permit. However, significant structural repairs, replacing major components, or any work that alters the original plumbing configuration of the grease trap might require a permit from the local Williston building department. We will advise you if a permit is needed.
Our plumbers are experienced in repairing all major brands and types of commercial grease traps and interceptors, including but not limited to Zurn, Big Dipper, Schier, Proceptor, and Rockford Separators. We have access to parts and expertise for a wide range of models commonly found in Williston, ND.
A broken grease trap can release large amounts of FOGs into the municipal sewer system, leading to blockages and sanitary sewer overflows. These overflows can contaminate local waterways, harm aquatic life, and spread bacteria, posing significant environmental and public health risks in Williston, ND. Proper repair and maintenance are essential for environmental protection.
Most standard grease trap repairs, such as clearing a blockage or replacing a baffle, can be completed within a few hours. More complex issues, like repairing a leaking tank or extensive pipe damage, may take a full day or require multiple visits. We always work to minimize disruption to your business in Williston.
To prevent future problems, implement strict FOG management practices, including scraping plates into the trash before washing, regularly cleaning your grease trap (typically every 1 to 3 months depending on usage), and avoiding pouring grease down drains. Regular professional maintenance from HPN Plumbing can also greatly extend the life and efficiency of your system.
Yes, HPN Plumbing stands behind the quality of our work. All our grease trap repairs come with a warranty on both parts and labor. The specific terms of the warranty will be clearly outlined in your service agreement, giving you peace of mind.
What People Are Saying About Our Plumbing Experts?

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 · Williston, 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 · Bismarck, ND
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
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Watford City, 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 · Watford City, ND
Emily R.
I called HPN Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · Watford City, ND












