Trench / Floor Drains

Trench & Floor Drain Installation in Salem, OR

Does this sound like your situation?

If any of these match what's happening at your home, call us — we can usually diagnose over the phone and give you honest guidance on next steps.

Commercial kitchen floor drain backing up or draining slowly
Garage or shop floor drain not draining after cleaning
Floor drain odor due to dried or failed trap
New commercial construction requiring floor drain installation before concrete pour
Trench drain grate damaged, corroded, or creating a trip hazard
Floor drain cover flush issue causing standing water around the drain

Most common causes

Grease accumulation

Kitchen floor drains collect grease that bypasses the interceptor and accumulates in the line. Regular snaking is needed or the line will eventually block completely.

Dried trap

Floor drains with infrequently used p-traps dry out over time, allowing sewer gas to enter the space. A simple trap primer or periodic water flush prevents this.

Foreign object obstruction

Commercial kitchen and shop floor drains collect significant debris. Floor drains without proper grates or debris catches clog quickly and need regular maintenance.

Inadequate floor slope

Commercial floor drains require proper floor pitch to drain. Improper installation leaves standing water that creates sanitation and safety issues.

Root intrusion

Like all drain lines, commercial floor drain mains can develop root intrusion in older lateral connections.

Trench & Floor Drain Services in Salem, Oregon

Commercial floor drains are critical to safe, sanitary facility operation — and they're often overlooked until they back up or start smelling. Spectrum Plumbing installs, cleans, and repairs commercial floor drains and trench drains throughout Salem's food service, automotive, manufacturing, and multi-use commercial facilities.

Commercial Kitchen Floor Drains

Oregon health code requires floor drains in food preparation areas and near dish machines. These drains must be connected to an approved grease interceptor and must maintain water in the trap at all times to prevent sewer gas infiltration.

Common issues we address:

Backed-up floor drain: Usually grease or food debris in the drain line. We snake and camera scope to clear and diagnose.
Sewer gas odor: Almost always a dried p-trap. We install trap primer assemblies on drains in areas with infrequent water use.
Damaged or missing grate: Allows debris into the drain and creates a sanitation issue. We replace grates in all standard commercial drain sizes.

Trench Drain Installation & Repair

Trench drains (linear channel drains) are used in commercial kitchens along equipment lines, in car washes, and in industrial facilities. We install new trench drain systems in new construction (set before the concrete pour) and in existing slabs (cut and installed after the fact).

Garage & Shop Floor Drains

Service garages and shops require floor drains with appropriate oil and water separators to meet environmental requirements. We install and maintain floor drain systems for automotive shops in compliance with Salem's pretreatment requirements.

CCB #255529 — serving Salem, Keizer, and the greater Willamette Valley.

Here's how we work the job

Camera scope the floor drain line to identify the obstruction type, location, and extent
Clear the blockage using an appropriate cable and head for the pipe diameter
Clean and inspect the trap and check the trap primer if one is installed
Replace the drain grate if it is damaged, missing, or inadequate for the application
For new installations, plan floor slope, drain location, and pipe sizing before the concrete pour

Frequently asked questions

Why does my commercial kitchen floor drain smell?

The most common cause is a dried-out p-trap from infrequent water flow. Pour water down the drain to refill the trap. If the smell persists, you may have a cracked trap or a sewer gas issue further in the line — call us to investigate.

Do commercial floor drains need to connect to the grease interceptor?

In Oregon food service establishments, all floor drains in food preparation and dishwashing areas must discharge through an approved grease interceptor. This is a health code requirement. We can evaluate your existing drain connections for compliance.

Can you install a trench drain in an existing concrete floor?

Yes — we cut the concrete using a saw, install the drain and connect the drain line, and patch the concrete around the new installation. This is a common upgrade for commercial kitchens adding a new equipment line or preparing for a health inspection.

Request service

Fill out the form and we'll get back to you promptly. For urgent issues, call us directly at (503) 917-3259.

Licensed & insured — CCB #255529
Serving Salem, Keizer, and the Willamette Valley
Mon – Fri 8:00am – 5:00pm