ONEC Major Projects

Providing “turn key” solution for midsize projects.

Who We Are
We believe …

ONEC Major Projects has a strong reputation of being professional, yet personable; offering safe and exceptional service. ONEC’s project delivery systems are customized for midsize projects and cover the project stages from concept to operations. Our procedures are aligned with the standards set by the Project Management Institute. ONEC also has a unique program called the “ONEC 5% Advantage” that provides benefits of a shorter schedule, cost certainty and clearly defined project scope.

What we DO

Project Services

Typical project services include project scoping, estimating, scheduling, procurement, and construction management. 


ONEC Major Projects provides inspection services to ensure quality workmanship from all involved parties. 

Safety and Quality Assurance

As part of our collective project management services, we supply experienced and competent safety and quality assurance staff.

Commissioning and Handover

We offer commissioning and start-up coordination to ensure a seamless transition when handover occurs.


Richard Holley, C.E.T., PMP

Richard Holley, C.E.T., PMP

ONEC Major Projects Manager

Richard has been with ONEC since 2007 and became a principal in 2013. He has over 20 years of experience in a spectrum of project management roles within numerous engineering and industry firms. Richard guides the in-house project management processes, including mentorship of fellow project managers and coordinators.

Rob Mrzljak, P.L. (Eng.)

Rob Mrzljak, P.L. (Eng.)

Project Engineer

Robert is a Mechanical Engineering Technologist with over 8 years of experience in project management, project engineering, industrial process piping design and engineering, fuel gas piping design and engineering, P&ID/PFD development, and engineering drawings. He has experience in equipment and material selection and in the design of supports, components, and facilities associated with piping installations.


Design and Build

ONEC assisted a client with the install of 6MW of generation capacity at the House Mountain Facility. The intent for the project is twofold – one being to consume waste gas and offset environmental concerns and two – to feed power to the grid. ONEC’s responsibility on this project was Engineering, Procurement, Construction and Commissioning.

Scope: Procurement, Construction Management, Construction, and Commissioning

Completion: 2016

Design, Build, and Construction Management (DBCM)

ONEC provided full DBCM services for a $13.2M expansion to its biosolids dewatering, storage and unloading facility at the Edmonton Waste Management Centre. The project was operational in less than 1 year from project kickoff and met the City’s schedule and budget for much needed expansion to its ability to handle biosolids from the growing population. The project included new centrifuges, tank modifications, biosolids pumps, silos, buildings, HVAC and truck loading equipment.

Scope: Multi-Discipline Construction Management, Safety Management, Electrical and Controls, and Subtrades

Completion: 2015

Glycol Heating Skids

ONEC was engaged by a client to provide onsite project management services to assist the client with scoping and proceeding with a variety of projects at its mini-mill operation in Edmonton, Alberta. The Project Manager coordinated engineering efforts and acted as the site contact for contractors.

Scope: Project Management and Engineering, Civil Engineering

Completion: 2013

Let’s Build Something

 Our goal is to complete your
industrial, capital, and maintenance projects on
time, on budget, and to the highest possible
standards, so you never have to worry.

 Let’s get started.
phone: 780.440.0400
address: 3821 – 78 Ave, Edmonton, AB, T6B 3N8