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Serving Mississauga & Peel Region

Electrical & Mechanical Engineering in Mississauga.

Electrical and mechanical engineering for Mississauga industrial, logistics, office, commercial, institutional and multi-residential building projects.

Discuss a Mississauga projectExplore local services
Electricity distributor
Alectra Utilities Corporation (Alectra Utilities)
Building permits
Building Division, Planning and Building Department (City of Mississauga)
Regional services
Region of Peel (Peel Region)

Local Project Support

Building-system upgrades across Mississauga's diverse facilities.

Mississauga includes office campuses, logistics and industrial facilities, commercial properties, institutional buildings and multi-residential projects. Tenant turnover, equipment additions, electrification and base-building renewal can require simultaneous review of service capacity, HVAC performance, controls and life-safety interfaces.

Where a building permit is required, the City of Mississauga administers the municipal review. Electrical service connections or upgrades may involve Alectra Utilities; the project address and current connection requirements should be confirmed before the design basis is finalized.

Design teams can use our architect-focused MEP consulting workflow; load-intensive facilities can begin with the capacity-study service.

Verified local information

Utility connection and permits in Mississauga

Summarized from the official pages linked below, checked on . Requirements change; confirm them with the utility and the municipality before you apply.

Electrical service connection

Alectra Utilities Corporation (Alectra Utilities)

Alectra's Make a Service Request page lists Mississauga among the communities in its service territory.

Residential upgrade request types on that page include panel changes, service upgrades over 100 A, generator installations, overhead-to-underground service changes and meter base relocation or repair; commercial types include changes to the main incoming service and new or changed sub-services.

Alectra must receive an ESA connection authorization before it connects or reconnects a service, and its page notes that an ESA notification of work is separate from a building permit.

Rate zone: Enersource Rate Zone.

What to prepare

  • A request submitted through the Alectra Utilities New Connections Portal
  • Project details and project timing
  • Customer and contractor details
  • Technical requirements for the service
  • Electrical drawings, where the project type needs them
  • Property owner information

Make a Service Request

Building permits

Building Division, Planning and Building Department (City of Mississauga)

Online applications: ePlans.

For a new non-residential building or addition, the City's checklist lists the Applicable Law Form, Commitment to General Review, an SB-10 ASHRAE energy-efficiency checklist, the Supplementary Information Form and a Letter of Use. Electrical drawings must give a complete layout designed by an electrical engineer, locate the required exit signs and emergency lights and show where the building has a fire alarm system, while sprinkler drawings must be shop quality with hydraulic calculations and water supply flow test data.

Drawings uploaded to ePlans must be unsecured PDF files, one drawing per file, in greyscale and landscape orientation, with file names that match the drawing number and name in the title block (no address, date, business name or special characters, and no more than 60 characters). Drawings for non-residential properties must be signed, sealed and dated by an architect, professional engineer and/or qualified designer.

A new building or addition on a property within a site plan control area needs site plan approval, and the City strongly recommends an optional pre-application meeting, requested through ePlans, for technical feedback against its submission standards and terms of reference. Once site plan approval is granted, the City forwards it to its Building Department so it is on file when the building permit application is made.

Region of Peel (Peel Region)

Peel Region gives written approval for connections to municipal water, wastewater and Regional storm sewer systems and reviews those service connections before the local municipality issues a building permit.

Building permit informationRegion of Peel (Peel Region) permits

Planning and growth areas

  • The City directs growth to Strategic Growth Areas, which include the Downtown Core, Growth Centres, Growth Nodes and Major Transit Station Areas (areas within about a 10-minute walk of a GO train or rapid transit stop), while residential neighbourhoods are expected to see mostly gentle growth.

    Source: mississauga.ca

  • The Employment Areas chapter of Mississauga Official Plan 2051 (March 2026) identifies 13 Employment Area Character Areas, among them Northeast, Dixie, Gateway, Southdown, Clarkson, Mavis-Erindale, Churchill Meadows and the Western Business Park, for manufacturing, research and development, warehousing, goods movement and related office uses, and encourages these areas to reach 45 jobs per hectare.

    Source: mississauga.ca

  • Four of these are Corporate Centre Employment Areas (Airport, Gateway, Meadowvale and Sheridan Park), which the plan describes as major employment concentrations outside the Downtown Core with major offices and many research and advanced manufacturing businesses; the Lakeview Innovation Corridor Employment Area is planned as a research and development and high-tech green campus.

    Source: mississauga.ca

Typical project environments

Typical project types

  • Office Campuses
  • Logistics & Industrial
  • Commercial Properties
  • Institutional Buildings
  • Multi-Residential Projects
  • Base-Building Renewal

Engineering services in Mississauga

Electrical engineering

Explore electrical

Mechanical & HVAC design

Explore mechanical

Plumbing engineering

Explore plumbing

Integrated MEP

Explore integrated MEP

Starting a project in Mississauga

Who issues building permits in Mississauga?

Building permits in Mississauga are issued by the City's Building Division, part of the Planning and Building Department. All building permit applications are submitted online through the City's ePlans portal. Please confirm current requirements on the City's building permit pages before applying.

Official source:mississauga.ca

What does Mississauga ask for with a new commercial or industrial building permit application?

For a new non-residential building or addition, the City's checklist lists the Applicable Law Form, Commitment to General Review, an SB-10 ASHRAE energy-efficiency checklist, the Supplementary Information Form and a Letter of Use, together with architectural, structural, HVAC, plumbing, electrical and sprinkler drawings. Electrical drawings must give a complete layout designed by an electrical engineer, and each drawing is uploaded to ePlans as a separate greyscale, landscape PDF named to match its title block. Please confirm current requirements on the City of Mississauga's Non-residential building or addition page.

Official source:mississauga.ca

Does a new commercial or industrial building in Mississauga need site plan approval before the building permit?

It does if the property is within a site plan control area: the City's site plan page states that a new building or addition there needs site plan approval, and it strongly recommends an optional pre-application meeting requested through ePlans. Once approved, the City forwards the site plan approval to its Building Department so it is on file when the building permit application is made. Please confirm current requirements on the City of Mississauga's Apply for site plan approval page.

Official source:mississauga.ca

Can ETEM support both electrical and mechanical engineering for a project in Mississauga?

Yes. ETEM can define the electrical and mechanical workstreams the actual scope requires. Each discipline's drawings are prepared and sealed by a licensed engineer, and shared loads, rooms, controls and construction interfaces are reviewed through one project workflow.

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