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POTABLE WATER, WASTE, STORM & SPECIALTY SYSTEMS

Plumbing Engineering in Portland, OR & Vancouver, WA

Code-compliant plumbing engineering solutions for commercial, industrial, institutional, and public-sector projects. From domestic water distribution and sanitary waste systems to storm drainage and specialty piping, we deliver permit-ready designs that support efficient construction and long-term performance.

Certifications & Designations

Veteran-Owned Small Business (VOSB)
Small Business Enterprise (SBE)
Certified Minority & Women’s Business Enterprise (WA OMWBE)
DBIA Member
Licensed in Washington State and multiple Pacific Northwest states
LEED-Capable Project Teams
Compliant with: ICC | IBC | LEED | NFPA | IEEE | ASHRAE | VA Standards

OVERVIEW

Plumbing Engineering Solutions for Every Project Type

Columbia Engineering Group provides plumbing engineering services for commercial, industrial, healthcare, institutional, and government projects throughout Washington and Oregon. From domestic water and sanitary systems to storm drainage, specialty plumbing, and facility upgrades, we deliver practical, buildable solutions that support efficient construction and dependable long-term operation.

Why Clients Choose CEG

PROJECT TYPES

Plumbing Engineering for Diverse Facility Types

CEG supports diverse building types and project delivery methods with plumbing engineering solutions that promote reliability, efficiency, code compliance, and long-term building performance.

Commercial & Institutional

Public Sector

Industrial & Specialized

Renovations & Improvements

WHAT WE DELIVER

Core Plumbing Services

Five areas where Columbia Engineering Group consistently delivers plumbing engineering expertise from planning through construction closeout.

Domestic Water Systems

Reliable hot and cold water distribution systems designed for performance, efficiency, and code compliance.

Sanitary Waste & Vent Systems

Practical drainage and venting systems engineered for efficient operation and long-term reliability.

Storm Drainage Systems

Coordinated stormwater conveyance systems that integrate with building and site infrastructure.

Specialty Plumbing Systems

Specialized solutions for laboratories, commercial kitchens, industrial facilities, and other unique environments.

Plumbing Retrofits & Upgrades

System modernization solutions that improve reliability, efficiency, maintainability, and code compliance.

ENGINEERING EXPERTISE

Plumbing Engineering Capabilities

From system assessments and demand analysis to plumbing design and construction support, Columbia Engineering Group provides the expertise necessary to deliver reliable, code-compliant plumbing systems.

Analysis & System Evaluation

Supporting informed decisions through assessments, inspections, and performance analysis.

Plumbing system assessments
Failure investigations
Flow and pressure analysis
Fixture demand analysis
Upgrade planning
Life cycle cost analysis (LCCA)

Plumbing Design & Coordination

Designing practical plumbing systems that support efficient installation and long-term operation.

Renovation & Construction Support

Providing responsive engineering support from permitting through project completion.

OUR PROCESS

How We Get Projects Done Right

We follow a proven process that emphasizes coordination, clear communication, and practical engineering solutions, helping projects move efficiently from planning through construction.

Site Assessment

We evaluate your site, project goals, jurisdictional requirements, and opportunities for cost savings.

Design & Coordination

Our team delivers clean, code-compliant designs tailored to your site conditions, integrated across disciplines.

Permit Submission

We help prepare permit-ready structural documentation and respond quickly to jurisdictional review comments to keep approvals moving forward.

Construction Support

From field RFIs to inspections, we’re here to ensure your site is built to spec with no surprises.

WHO WE SERVE

Built for Your Project Team

Structural deliverables should match the priorities of the stakeholder using them. Developers, architects, contractors, and agencies each need something slightly different.

Developers

We help projects move efficiently through permitting, inspections, and construction while supporting budget and schedule goals.

Architects

Our engineers collaborate closely with design teams to integrate structural requirements while preserving architectural intent.

Public Agencies

We deliver code-compliant documentation and dependable engineering support for public-sector projects.

Contractors

We provide practical details, responsive communication, and construction-phase support that reduce field issues and project delays.

FEATURED PROJECTS

Plumbing Engineering Work We're Proud Of

Explore a selection of plumbing engineering projects demonstrating our commitment to efficient, reliable, and code-compliant water distribution, drainage, and specialty plumbing systems across a wide range of facility types.

Sutton Trucking Regional Distribution Hub

Cowlitz County, WA

Complete MEP design for a 27,000 SF trucking hub, delivered by CEG, featuring VRF HVAC, energy recovery ventilation, infrared heaters, LED lighting controls, and full plumbing infrastructure.

SunModo Warehouse Storage and Distribution

Vancouver, WA

SunModo’s 35,000 SF warehouse and office received complete MEP engineering by CEG, incorporating heat pump HVAC, EV charging, and rooftop solar to support growth and sustainability goals.

Eastern State Hospital Laundry Waste Line Replacement

Medical Lake, WA

CEG resolved chronic drain backups by replacing waste and vent pipes across four floors and expanding laundry facilities, with plumbing and electrical engineering provided.

CLIENT TESTIMONIALS

What Our Clients Say

Our work speaks for itself, and so do the people we’ve served.

CLIENT TESTIMONIAL PLACEHOLDER

— Commercial Developer, Bellevue, WA

CLIENT TESTIMONIAL PLACEHOLDER

— Commercial Developer, Bellevue, WA

FAQs

Common Questions

Questions we hear often, answered directly, without the runaround.

Do you provide plumbing engineering for retrofits and renovations?

Yes. Plumbing system upgrades, renovations, and modernization projects are a core part of our plumbing engineering services.

Can you coordinate plumbing with stormwater and civil utilities?

Yes. We regularly coordinate plumbing systems with civil infrastructure, stormwater systems, water service connections, and sanitary utilities.

Do you support specialty plumbing systems?

Yes. We provide plumbing engineering for laboratories, commercial kitchens, industrial facilities, and other specialized environments requiring custom solutions.

START YOUR PROJECT

Ready to Build with Confidence?

Columbia Engineering Group is your trusted partner for high-performance plumbing engineering solutions. Serving clients throughout Portland, Oregon; Vancouver, Washington; and communities across Washington, Oregon, Idaho, California, Florida, and Wyoming, our veteran-led team delivers practical, code-compliant plumbing designs backed by technical expertise, multidisciplinary coordination, and a commitment to successful project delivery.

Engineering Services

🏛️ Structural Engineering

⚙️ Mechanical Engineering

💡 Electrical Engineering

🏗️ Civil Engineering

🦺 Fire Protection Engineering

Let’s Start Your Project

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