MEP SERVICES
DAR Engineering & Design is a trusted MEP engineering consulting firm providing electrical and mechanical engineering services for commercial, residential, industrial, and mixed-use construction projects. Based in the Greater Toronto Area (GTA), we support developers, architects, and contractors across Ontario with coordinated, code-compliant, value-engineered, and construction-ready designs.
Our team delivers practical engineering solutions for new construction, renovations, and tenant fit-outs, with a strong focus on constructability and coordination that streamline approvals, reduce construction risk, and keep projects on schedule and within budget.
Electrical Lighting Design
- Interior, exterior, and site lighting design
- Roadway lighting design and distribution for sub-divisions
- Architectural lighting coordination for commercial and residential buildings
- High/low bay lighting design for industrial buildings
- Speciality lighting for sports complex and courts
- Diverse lighting control system designs to suite application and client needs/requirements
Electrical Power Distribution Design
- Electrical load calculations and service sizing
- Electrical distribution equipment specifications
- Cabling, conduit routing, and trenching layouts
- Emergency power and standby generator systems
- Power distribution single line diagrams
- Coordination with local hydro for service applications
- Submission for ESA plan review
Life Safety & Fire Alarm Systems
- Emergency and egress lighting design
- Fire alarm system design in Compliance with Ontario Building Code (OBC) and AHJ requirements
Low Voltage & Communications Systems
- Voice and data systems
- Sound, PA, and conference room systems
- Audiovisual and TV distribution systems
- CCTV and security camera systems
Load Calculations & Electrical Capacity Assessments
DAR Engineering & Design provides electrical load calculations and capacity assessments for existing buildings and facilities to determine whether current electrical services can support proposed renovations, additions, or changes in use.
Our load calculation and assessment services include:
- Electrical load estimation for existing and proposed conditions
- Evaluation of existing electrical service capacity and distribution systems
- Assessment of added major electrical loads (HVAC, EV chargers, equipment, kitchens, process loads, etc.)
- Identification of required service upgrades or mitigation strategies
- Coordination with utility providers and Authorities Having Jurisdiction (AHJ)
- Documentation to support building permit and utility approval processes
By accurately assessing electrical capacity early, we help clients optimize their investment and avoid unexpected service upgrades, approval delays, and construction disruptions.
We provide Professional Engineering stamped reports with the load assessment to present to Electrical Safety Authority, Utility companies (Hydro) and other AHJs.
This service is essential for projects involving increased electrical demand, including residential conversions, commercial remodels, tenant improvements, and industrial expansions.
Mechanical Engineering Consulting Services
Our mechanical engineering services support efficient, comfortable, and sustainable building performance across all project phases.
HVAC Engineering Design
- Heat Loss/ Heat Gain Calculations
- Heating, ventilation, and air conditioning layouts
- Energy-efficient and code-compliant solutions
Plumbing & Fire Protection Engineering
- Plumbing and drainage system design
- Fire protection and sprinkler system coordination
- Compressed air system design
Energy Modeling & Building Performance
As part of our mechanical design process, DAR offers energy modeling and building performance analysis to support efficient system selection and regulatory compliance. Our energy modeling services help project teams evaluate energy use, optimize HVAC strategies, and make informed design decisions early in the project lifecycle.
Energy modeling services include:
- Whole-building energy modeling and simulation
- HVAC system comparison and optimization
- Energy efficiency and lifecycle cost analysis
- Support for Ontario Building Code (OBC) compliance
- Coordination with architects and sustainability consultants
By integrating energy modeling with mechanical design, we help reduce operating costs, improve building performance, and support energy efficiency targets.
Our Approach to Construction-Focused Engineering
DAR Engineering & Design understands the priorities of developers and builders. Our engineering process is designed to reduce RFIs, minimize change orders, and support efficient construction.
We are committed to:
- Clear communication between owners, architects, and contractors
- Early identification of coordination and constructability issues
- Consistent involvement of the same engineering team from design to construction
- Cost-effective, buildable engineering solutions
- Applying proven experience from similar projects
- Direct access to the Project Manager for fast issue resolution
Coordinated resources to meet construction schedules and milestones
Why Developers and Builders Choose DAR Engineering & Design
- Proven experience in MEP engineering for construction projects
- Strong coordination with architects, contractors, and authorities
- Practical, permit-ready drawings
- Responsive engineering support during construction