Engineering & Design

Where Creativity Meets Innovation

TWD offers specialized engineering and design services across various sectors. Our team of in-house experts ensures that our designs align with industry standards and regulatory guidelines, with an unmatched focus on safety, sustainability, and operational efficiency.

A person viewed from behind looking at a computer screen displaying a 3D model on CAD software

What We Do

Through our commitment to excellence, innovation, and client collaboration, we deliver high-quality engineered solutions designed to meet each project's unique requirements.

Take advantage of comprehensive asset management services that are designed to meet the specific needs of your industry. Our team brings valuable experience in operating plant environment sand knows the significance of cultural change. Working closely with management, we help secure buy-in, document business processes, and create internal champions for successful implementation.

TWD Asset Management Model

Whether the goal is to minimize project and project start-up costs, increase production volumes, or decrease operating and maintenance costs, TWD’s integrated, scalable, and fit-for-purpose TotalLifecycle Asset Management capabilities can assist organizations to achieve those results.

The TWD Difference

We Understand the Entire Asset Management Cycle

Our expertise extends across the entire asset lifecycle so we can deliver customized solutions across a wide range of industries. We apply the proven TWD PERFORM™ methodology to optimize our clients’ assets, drive efficiency, and achieve sustainable success.

Front End Specification >Audit & Assessment > Design & Execution > Reliability, Production Availability & Maintainability > Decommission

TWD specializes in providing cost-effective mechanical, plumbing and electrical design for numerous types of buildings.Electrical applications include building electrical systems, EV car charging stations, sports fields, and public spaces. Each project is unique, which enables the team to explore innovative applications and solutions such as energy management, legacy integration, wireless controls, and design consideration for future growth or expansion.

Design & Contract Administration of Building Systems

  • Patient Care Areas and Life Safety Systems
  • Multi-Purpose Complexes
  • Multi-Residential Complexes
  • Health Care Facilities
  • Institutional and Industrial Buildings
  • Sport Fields and Stadia, Public Spaces, Commercial and Mixed Use, Parkades
  • Recreational Facilities
  • Fleet Maintenance Facilities
  • Interior and Exterior Building Systems
  • Data Centres
  • Life Safety and Mission Critical Backup
  • Security Cameras, Monitoring and Parkade Access Signals
  • Communication Systems
  • Energy Management and Wireless Controls
  • Energy Audits and Modelling
  • Energy Efficiency
  • Simulation
  • Electrical Power
  • Generator Upgrades
  • Elevator Upgrades

Pump Stations

  • Sanitary Pump Stations and Sanitary Lift Stations
  • Pressure-Reducing Valve (PRV) Stations
  • Water Pumping Station, Water Booster Station and Water Reservoirs
  • Equipment and piping design

Electrical Vehicle (EV) Charging Stations

  • Electric Car Charging Stations
  • Integrated Design with Solar Energy and EnergyStorage Systems
  • DC Fast Chargers (50kW) and Level 2 Chargers(25kW)
  • Power Service and Distribution
  • Standards Development and Product Selection


  • Plumbing Systems, Water Use Reduction and Grey Water Systems
  • All Types of Applications Water Distribution Systems
  • Drain Waste Vent Systems
  • Storm Drainage Design for New and Renovation Buildings or Facilities Projects
  • Medical Gases and Laboratory Gases Systems
  • Plumbing Design Projects Include:
  • Mental Health Facilities
  • Research Laboratories
  • Dentistry Operatories
  • Hospitals
  • Hotels
  • Low Rise and High Rise Multi-Residential Complexes
  • Domestic Water Distribution Re-pipe for Above and Below Grade
  • Outdoor Swimming Pool Deck Drainage System Replacement and Snow Melt System


  • System Upgrades, Retrofits and Replacements (Rooftop Units (RTUs)​, Hydronic Heating Systems, Variable and Constant Volume Systems, Laboratory Exhaust, Ventilation Systems, Heating and Chiller Systems)
  • Newer, More Efficient and Specialized Technologies (Displacement Ventilation​, Chilled Slab and Chilled Beam Systems, Variable Refrigerant Flow (VRF), Heat and Energy Recovery Ventilators (HRV andERV), Air and Water Source Heat Pumps (IncludingCO2), Adiabatic Coolers to Replace Cooling Towers, Electronically Commutated Motor for Pumps and Fans)
  • Fan Arrays as New Installations and System Replacements

Protection System

  • Fire Alarm Systems
  • Fire Protection Designs, Sprinkler Drawings and Fire Protection Sprinkler Hydraulic Calculations
  • Latest Building Code and Fire Code Requirements in Accordance with NFPA Standards
  • Dry System and Non-Freeze Systems
  • Double Interlocked Dry Preaction Systems
  • Deluge Systems
  • Inert Gas Systems

TWDers have assisted clients in developing both brownfield and greenfield spaces. We have significant experience in optimizing designs in a wide variety of situations and conditions. The more challenging the project, the better we are.

  • Site Development (Grading, Drainage, Roads,Paving, etc.)
  • Storm and Sanitary Sewers Systems
  • Effluent Ponds, Containment Dykes and Bunkers
  • Structural Analysis
  • Structural Steel, Concrete and Timber Design
  • Piling and Foundations
  • Soil Mechanics
  • Buildings (Roof Systems, Wall, Floor and Ceiling Systems, HVAC, Plumbing, Fire Protection and Wastewater, Power and Lighting)
  • Roof Evaluations
  • Material Storage Structures (Solids,  Liquids)
  • Equipment Platforms and Access Decking

Our team of professionals provides top-quality design services for industrial and commercial projects. We bring an owners’ mindset to our projects to ensure we optimize our designs, but also factor in elements relating to constructability, maintainability, and operating efficiency.

  • Power Distribution (5–25 kV and Low Voltage)
  • Power Generation and Controls for Prime/Standby Power
  • Transmission, Substations and Switchyards with Utility Tie-ins to 230kV
  • Plant Electrical Studies Including Short Circuit and Load Surveys
  • Power Factor Correction
  • Drives (Synchronous and Induction Motors,VFDs)
  • Heat Tracing, Design and Control
  • Lighting, Heating and Energy Conservation
  • Power Studies (Arc Flash, Fault Current Analysis, Protective Device Coordination, Harmonic Analysis, In Rush Analysis, Load Flow Analysis, ETAP Modelling)
  • SKM-ETAP Translations and Model Conversions
  • Area Classification Drawing, Preparation andUpdate
  • Emergency Power Supply Systems
  • VFD Studies
  • Electrical Code Review and Best Practices
  • As-Built and For Record Drawings
  • Energy Audits "Peak Power Demand” Studies
  • Industrial Accelerator Program Support
  • Coordination with Local Power Authorities
  • HAZOP/PHA Implementation
  • Software Packages for PLC and Distributed Control Systems
  • Lighting, Heating and Energy Conservation
  • Equipment Drives (Synchronous/Induction Motors, Variable Speed AC Drives, DC Drives)

Our team of professionals provides top-quality design services for industrial and commercial projects. We bring an owners’ mindset to our projects to ensure we optimize our designs, but also factor in elements relating to constructability, maintainability, and operating efficiency.

  • SCADA Networks
  • Programmable Controllers (Allen Bradley, Triconex, GE, Modicon, TI)
  • Product Custody Transfer Applications
  • Software Packages for PLC and DCS
  • Process Control Systems (DCS, Fieldbus,  Smart Equipment)
  • Alarm and Shutdown Management (Triconex)
  • Safety Interlock Categories (CAT) 
  • Safety Integrity Levels (SIL)
  • Burner Management Systems
  • Safety Interlocks
  • As-Built and For Record Drawings
  • Preventative Maintenance Planning
  • Tank Farm Management Services
  • Inventory Control Systems
  • Custody Transfer
  • Alarm and System Management
  • Instrument Replacement Specification
  • HAZOP/PHA Implementation
  • Network Architecture

The TWD team has been designing roadway lighting for municipal and provincial governments, educational authorities, private developers, and other agencies. Projects range from residential development to Design-Build-Finance-Operate (DBFO) mega projects. Our experience encompasses the complete spectrum of illumination for transportation infrastructure, from parking lots to lighting for roadways, bridges, and tunnels.


  • Street Lighting (Freeways, Arterials and Local Roadways)
  • Tunnel Lighting, Review and Design
  • Bridge Lighting, Conduit and Electrical Design
  • Parking Lot and Multi-Use Pathway Lighting
  • New Subdivisions and System Interchanges
  • Roundabouts, Intersections and Vehicle Inspections
  • Snow sheds HPS and LED Alternatives
  • Underground Parking and Emergency/Ramp Signal Design
  • LED Pathway Controls
  • Lighting Impact Studies
  • Greenway Connections

LED Retrofit

  • Provincial Highway LED Retrofit LED Retrofit Programs
  • Lighting Measurement and Analysis Studies
  • Lighting Comparison Studies Before and After LED Retrofits
  • Ministry Resource for LED Needs and CostAnalysis
  • Luminaire Needs and Product Assessments for Capital Expenditures

Our team of professionals provides top-quality design services for industrial and commercial projects. We bring an owners’ mindset to our projects to ensure we optimize our designs, but also factor in elements relating to constructability, maintainability, and operability.

  • Piping Design
  • Stress Analysis of Piping, Pressure Vessels and Other Components/Systems
  • Bulk Storage, Tankage and Loading Facilities
  • Steam Generation and Distribution Systems
  • Vacuum Systems
  • Process Vessels
  • Heat Transfer and Heat Exchangers
  • Dryers and Cooling Towers
  • Boilers
  • Mixing and Agitation
  • Refrigeration
  • Energy Conservation
  • HVAC and Process Ventilation
  • Metallurgical Selection
  • Transport of Solids
  • Material Conveying and Handling Systems
  • Flow of Fluids and System Hydraulics
  • Fluid Transport Equipment
  • Rotating Equipment Applications: Pumps and Pumping Systems, Air/Gas Compressors and Vacuum Systems, Turbo-Machine Design and Analysis
  • Reverse Osmosis Units
  • Combustion
  • Power Generation
  • Detailed Design of Equipment, Components andProducts
  • Equipment Fabrication and Assembly Drawings
  • Auxiliary Systems, Pilot Plant Design andFabrication (Lube Oil, Water Treatment, Chemical Injection)
  • CRN Registration (TSSA, ABSA and Others)

Our experts create innovative, sustainable, and cost-effective solutions for storage and transportation of oil, gas, and other materials to market. For more than 25 years, TWDers have held key roles in management, operations, maintenance, and engineering of pipeline systems, including a wide variety of challenging locations and environments.

  • Piping Design
  • Pipeline Engineering (Crossings, Regulatory, Integrity Programs)
  • Expansions
  • Revamps
  • Major Grassroots Installations
  • Sustainable Maintenance Work
  • Bulk Storage, Tankage, Terminals and Loading
  • Stress Analysis
  • Material Conveying and Handling Systems
  • Steam Generation and Distribution Systems
  • Process Vessels
  • Heat Transfer and Heat Exchangers
  • Hydraulics
  • Dryers and Cooling Towers
  • Rotating Equipment Applications (Pumps and Pumping Systems, Air/Gas Compressors and Vacuum Systems, Turbo-Machine Design and Analysis)
  • Boilers
  • Mixing and Agitation
  • Refrigeration
  • Energy Conservation
  • HVAC and Process Ventilation
  • Metallurgical Selection
  • Design and Construction Under CSAZ662
  • Pipeline Construction Techniques
  • Construction Contract Preparation and Contract Admin
  • Pipeline Drawing Standards and Methods
  • Transient Analysis
  • Pipeline Inspection and Pigging
  • Leak Detection
  • Horizontal Directional Drilling (HDD)
  • Numerous Third-Party Alliances (Pre-Construction Surveyors, Land Surveying and Aerial Mapping, Construction Survey, Integrity and Data Interpretation, Landowner Negotiation, Environmental, Regulatory, Geotechnical)
  • Completions and Commissioning

In engineering, plant reliability is paramount, ensuring that industrial facilities consistently operate at peak efficiency with minimal downtime. Our team implementing robust maintenance strategies, advanced monitoring systems, and preventive measures to enhance plant reliability and optimize overall performance.

Fitness-For-Service (FFS) Evaluations

  • API 579-1/ASME FFS-1 Fitness-for-Service  Assessments
  • API 571 Damage Mechanisms Affecting Fixed  Equipment in the Refining Industry Assessments
  • API 580/581 Risk Based Inspection
  • Evaluating Changes in Service That Enhance  Equipment Performance
  • Providing Practical and Cost-Sensitive  Solutions to Challenging FFS Problems
  • Utilizing Advanced FFS Techniques to Extend  Equipment Life
  • Design of Effective Solutions and Repairs  (Short Term and Permanent)
  • Strategies for Reduction of Shutdown Time  for Repairs
  • Responsive in Emergency Situations

Reliability Centered Maintenance (RCM)

  • Critical Equipment Prioritization
  • Identification of Functions and Potential  Functional Failures
  • Identification and Evaluation (Categorizing)  the Effects of Failure
  • Identification of Causes of Failure
  • Selection of Maintenance Tasks
  • System Development and Implementation

Risk Assessments

  • LOPA
  • Failure Mode and Effects Analysis (FMEA)
  • Failure Mode, Effects and Criticality Analysis(FMECA)

Preventative & Predictive Maintenance(PM/PD) Programs

  • Rotating Equipment Programs
  • Critical Equipment Monitoring Programs
  • Non-destructive Examinations
  • Corrosion Studies

Root Cause Analysis and Facilitation

  • Various Incident Investigations Related toHealth and Safety, Non-conformances in Engineering Design and Construction
  • Facilitation and Investigative Lead

Whether you’re considering a new build or retrofitting and upgrading processes, our engineers can help you move your project forward. Our experience includes roles in operations so we can bring a deep understanding of our clients’ needs forward on a project. TWD’s expertise ranges from front-end conceptual studies through to optimization and execution. We are highly skilled in conceptualization and optimization of designs for a wide range of continuous and batch operations.

  • Process Simulation
  • Financial Modelling
  • Optimization of CAPEX and OPEX
  • Process Design
  • Process Vessels and Reactors
  • Chemical Reactors
  • Distillation and Gas Absorption
  • Solid-Liquid Extraction
  • Adsorption and Ion Exchange
  • Extraction and Leaching
  • Refining (Hydro-treating, Desulphurization, Alkylation, Catalytic Reforming Hydrogenation, Isomerization, Dewax, Hydrodenitrification, Hydrogen, Sulphur Recovery, Tail-Gas Handling)
  • Chemical (Aqueous Organic/Inorganic Solutions, Organic/Inorganic Compounds)
  • Alternative and Renewable Fuels (Ethanol, Methanol, Bio-diesel, Oxy-diesel, Low-Sulphur Gasoline/Diesel)

TWD is composed of skilled engineers, project managers, designers, technicians, and support staff with a long history of providing specialized traffic engineering services. We apply our expertise to improve traffic safety and operations for provincial transportation authorities, municipalities, transit agencies, rail companies, and private developers.


  • Traffic and Pedestrian Signalling
  • Emergency and Rail Pre-emption
  • Transit Signal Priority (TSP)
  • Timings and Transit Signal Priority (TSP) Conflict Study
  • Central Traffic Controls and Communication System Design
  • Connected Vehicle and Traffic Management Center System Design
  • Safety
  • Road Safety Audits and Traffic Safety Studies
  • Phasing and Visibility Conflict Studies

Management Plans

  • Traffic Control Plans
  • Temporary Traffic Signal Design
  • Modified Traffic Signal Operation
  • Signing and Pavement Marking Design

Accommodation Strategies

  • Detour Impact
  • Corridor Capacity Analysis
  • Traffic Signal Analysis
  • Access Accommodation Analysis


TWD brings an integrated multidisciplinary approach to transit center site design. We work collectively with our clients and other stakeholders to deliver mass transit stations and public transit hubs that meet emerging needs considering urban densification and sustainable public communities.

TWD expertise considers surrounding road networks, parking facilities, and pedestrian and biking routes so that these spaces can be inclusive and integrate with all required transportation methods. Our team ensures new transit sites are well integrated into the existing utility infrastructure, ensuring minimal service disruptions, community impacts, and installation costs.

  • Site Investigation
  • Development Permit Support
  • Multi-Discipline Design and Coordination
  • Tender Support and Construction Admin and Project Management
  • Transit Signal Priority (TSP) Bus LRT Systemsand Transit Priority Systems (TPS)
  • Transit Center Design
  • LRT Systems Maintenance and Upgrades


Our broad experience with railway design includes multi-faceted engineering discipline experience dealing with the design, construction, and operation of all types of rail transport systems. It encompasses a wide range of engineering disciplines, including civil engineering, electrical engineering, mechanical engineering, and industrial engineering. We have experience with both Public rail transportation systems and many Private Industrial–type installations.

  • Crossing Compliance Assessment
  • Signal Rail Preemption
  • Signal and Pavement Markings
  • Rail Design and Rail Planning
  • Rail Electrification and System Assurance

TWD's team, comprised of highly skilled engineers, project managers, and designers who have decades of experience providing engineering, procurement, and construction management services for overhead and underground utility systems. Our goal is to strengthen and improve operations on behalf of electrical utilities, municipalities, electric cooperatives, telecommunication companies, and industrial clients.


  • Underground Conduit, Including Fibre Optic andCopper Based
  • Overhead Fibre and Coax
  • Wireless Ethernet Radio Networks

Land Development & Joint-Use Facilities

  • Turnkey Subdivision
  • Residential Subdivisions
  • Commercial Developments
  • Municipal and Institutional Developments
  • Shallow Utility Design

Power Distribution

  • Distribution Line Relocates
  • Reconstruction and Conversion
  • Structural Design and Loading Analysis
  • Distribution Automation
  • End of Life Infrastructure Replacement
  • Poles, Structures and Overhead Line Replacement
  • Subdivision and Land Development
  • New Installations of Underground Feeders, Switching Cubicles, Transformers and Overhead Lines
Ready to Start Your Next Project?

Celebrate innovation and unlock new possibilities with TWD.