Grease Trap Installation in Spokane, WA
Opening or remodeling a kitchen in Spokane, WA? We size, set and connect grease interceptors that pass inspection the first time.
- Fast Commercial Scheduling
- Fast, Dependable Service
- Local Washington Plumbers
- Upfront Pricing
Need a New Grease Trap Installed in Spokane, WA?
Our team is ready to provide a fast and accurate quote for your installation project.
Professional Grease Trap Installation in Spokane, WA
FHN Plumbing installs hydromechanical grease traps and large gravity interceptors for restaurants, schools, food trucks with commissary kitchens and other food service sites. We calculate flow rates, select the right unit and connect every fixture that discharges fats, oils and grease.
Our expertise includes:
- All grease trap sizes and types
- Commercial kitchen grease trap sizing and installation.
- Preventive solutions for FOG (fats, oils, greases)

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

Customers
Why Choose FHN Plumbing for Grease Trap Installation in Spokane, WA?
Choosing the right plumbing company for grease trap installation is important for long-term reliability and compliance. Our team has broad experience with the specific requirements and challenges of commercial kitchen plumbing systems.
- Minimal Downtime, We schedule work after hours or between shifts to keep your kitchen open.
- Accurate Sizing, We calculate gallons per minute for every connected sink and dishwasher before selecting a unit.
- Prevent Clogs, A new grease trap effectively separates FOG from wastewater, protecting your drainage system from blockages.
Citywide Coverage
FHN Plumbing proudly serves every neighborhood and business district of Spokane for grease trap installation. From downtown eateries to suburban restaurants, our plumbers are familiar with the needs and permit processes across the area.
Experienced Team
Our plumbing team has deep hands-on experience with grease trap installations, having worked on many commercial and some high-volume residential kitchens. We know the ins and outs of various models and the best practices for secure, long-lasting setup.
Safety-First Approach
We follow local plumbing code and municipal fats, oils and grease programs on every installation. That includes proper venting, flow control and placement so lids are easy to reach for pumping and inspection.
Trusted Certified Spokane Plumbing Services Professionals
At FHN Plumbing, we take pride in providing licensed, certified plumbing services throughout Spokane, WA. 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 CertificationTrusted Grease Trap Installation Services in Spokane, WA
Food Truck Commissary and Ghost Kitchen Traps in Spokane, WA
Commissary kitchens and ghost kitchens often have several prep stations and heavy dishwashing loads. We design grease trap installs that handle high flow from multiple sinks and dish machines. Each unit is sized for the combined discharge, not just one fixture. We also install cleanouts and sample ports where the city requires them. This keeps shared kitchens compliant for each tenant.

Commercial Grease Trap Installation in Spokane
For restaurants, cafeterias, and any food service business in Spokane, a well-functioning grease trap is non-negotiable. We specialize in installing commercial-grade grease traps designed to handle high volumes of FOG, ensuring your kitchen operates smoothly and compliantly. Our installations are tailored to the specific needs and capacity requirements of your establishment, preventing costly backups and environmental issues.
Replacement & Upgrade Services in Spokane, WA
If your existing grease trap in Spokane, WA is old, inefficient, or no longer meets current codes, FHN Plumbing provides professional replacement and upgrade services. We can assess your current system, recommend modern, more efficient alternatives, and perform a smooth removal and installation. Upgrading your grease trap can greatly improve performance, reduce maintenance needs, and ensure long-term compliance.
Automatic Grease Removal Units in Spokane
Automatic grease removal devices skim grease from the water and collect it in a container your staff empties. Brands like Thermaco Big Dipper are popular in kitchens with limited space and frequent cleaning needs. We install these units with the correct power supply and drain connections. They can reduce the need for frequent pump-outs in smaller kitchens. We explain daily maintenance so your staff keeps the unit running well.
Grease Trap Installation for Schools and Institutions in Spokane
School cafeterias, hospitals, senior living facilities and churches with kitchens often need commercial interceptors. These sites usually have large dish machines and steam kettles that push high flow. We size interceptors to handle peak lunch or dinner loads without bypassing grease. Our crews schedule work around school breaks or off hours. We also provide documentation for facility managers and inspectors.
In-Ground Gravity Interceptor Installation in Spokane, WA
Larger restaurants and high-volume kitchens often need an outdoor gravity interceptor. These concrete or polyethylene tanks usually range from several hundred to over 1,500 gallons. We excavate, set the tank on a stable base, connect inlet and outlet piping and install manhole risers. Glacial till and dense hardpan are common in western Washington, and they drain poorly enough to keep water against foundations and in crawlspaces. We plan excavation equipment around the ground conditions we find on site. A properly installed interceptor can go much longer between pump-outs than an indoor trap.
Grease Trap Replacement and Upgrades in Spokane
If your existing grease trap is old, damaged, or no longer meets current code requirements, FHN Plumbing offers professional replacement and upgrade services. We can remove your outdated unit and install a new, more effective model that complies with all regulations in Spokane. Upgrading can prevent future plumbing issues and help your business steer clear of fines related to FOG discharge.

Hydro-Mechanical Grease Trap Installation in Spokane, WA
Hydro-mechanical grease traps, also known as automatic grease removal units, offer an active solution for FOG management in Spokane, WA. These units often include internal baffles and flow control mechanisms to enhance separation efficiency. We provide professional installation of various hydro-mechanical models, ensuring all electrical and plumbing connections are correctly made for optimal performance and automated FOG removal.
Grease Trap Installation Near Me in Spokane, WA
Don't let FOG cause a major headache for your commercial kitchen. For reliable grease trap installation near me, call FHN Plumbing today. We offer honest pricing, professional service, and a commitment to helping Spokane businesses maintain compliant and functional plumbing systems.
Searching for 'grease trap installation near me' in Spokane, WA? FHN Plumbing is your local commercial plumbing expert. Our teams are positioned to provide rapid response and efficient service to businesses across the whole Spokane area.
FHN Plumbing at a Glance
- Licensed and insured plumbers serving Spokane, WA
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.9-star rated by 382+ Washington customers
Spokane Map
Spokane Information
- Population
- 229,447
- Area codes
- 509/425/253
- Service area
- Spokane and communities within 40 miles
- Nearby
- Spokane Valley, Pasco, Richland, Kennewick
For homes and businesses in Spokane, WA, a correctly installed grease trap is crucial for preventing costly plumbing blockages and maintaining a healthy environment. Constant moisture west of the mountains promotes mold, rot and corrosion around leaks, so small drips should not be ignored.
Expert Services
Trust our professionals for reliable FHN Plumbing solutions in Spokane, WA.
Our Specialized Plumbing Services in Spokane, WA
At FHN Plumbing, we provide a complete range of plumbing services across Spokane, WA. 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 Installation Process Works in Spokane, WA
Our simple process ensures your new grease trap is installed efficiently and correctly, minimizing disruption to your business in Spokane.
Request a Quote
Contact us at (425) 491-3131 to discuss your grease trap installation needs. We will gather information about your commercial kitchen or property and schedule an on-site assessment.
Site Assessment
Our experienced plumbers will visit your Spokane location to evaluate the space, determine the optimal grease trap size, and identify the best placement. We consider factors like kitchen layout, water usage, and local code requirements.
Permit Acquisition
For commercial grease trap installations in Spokane, permits are often required. We assist you in navigating the necessary paperwork and ensure all local permits are secured before starting work.
Frequently Asked Questions About Grease Trap Installation in Spokane
Small indoor hydromechanical traps usually cost $1,500 to $5,000 installed. Large outdoor gravity interceptors often run $8,000 to $30,000 or more with excavation, concrete and site restoration. We provide a written estimate after a site visit.
Indoor traps should be close to the fixtures they serve and easy to open for cleaning. Outdoor interceptors are typically placed where a pump truck can reach them without blocking customer traffic.
Manufacturer warranties vary, with many polyethylene units carrying long structural warranties. We also warranty our installation workmanship and connections.
That depends on local rules and the trap type. Some programs require dish machines to discharge through the interceptor, while others restrict high-temperature discharge into certain units, so we confirm the requirement before we install.
Most food service businesses that cook, wash dishes or prepare food with fats, oils or grease are required to have one. Local pretreatment programs set the specific rules, and we can help you confirm what applies to your site.
We recommend and install high-quality, durable grease trap brands such as Zurn, Big Dipper, Schier, and Rockford Separators. These manufacturers are known for their reliability and compliance with industry standards, offering various solutions to meet diverse commercial kitchen needs.
Installation time depends on the size and complexity of the grease trap. A small under-sink unit might take a few hours, while a large outdoor interceptor could require several days due to excavation and concrete work. We aim to complete installations efficiently to minimize disruption to your business operations.
The timeline for grease trap installation depends on the project's scope. A simple under-sink unit might take a few hours. Larger outdoor gravity interceptors, which involve excavation and more extensive plumbing, can take anywhere from one to several days. We always aim to minimize disruption to your business operations.
What People Are Saying About Our Plumbing Experts?

Emily R.
I called FHN 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 · Yakima, WA
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 · Pasco, WA
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 · Spokane, WA
Patricia H.
We had a slab leak that two other companies could not find. FHN Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Spokane Valley, WA
James P.
Our commercial plumbing system had a leak under the sink, and FHN Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Wenatchee, WA
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 · Kennewick, WA












