If you are developing a basement suite in Calgary, the electrical panel is one of the first things that needs to be sorted. In most cases the existing service cannot support a second dwelling unit without an upgrade. Here is what is required, what it costs, and how the permit process works.
Why a Basement Suite Almost Always Requires a Panel Upgrade
A legal secondary suite in Calgary is treated as a separate dwelling unit under the Alberta Electrical Code and City of Calgary requirements. It needs its own circuits for kitchen appliances, bathroom, lighting, and heating. That additional load on top of your existing household consumption is more than most 100 amp services can handle, and more than many 200 amp panels with limited remaining capacity can accommodate without dedicated planning.
The most common scenarios we see in Calgary:
- Homes on 100 amp service, a suite makes a 200 amp upgrade mandatory
- Homes on 200 amp service with a full or near-full panel, a sub-panel or panel replacement is typically required
- Homes where the existing panel is a Federal Pacific Stab-Lok or Zinsco unit, replacement is required regardless of the suite
What Size Service Does a Basement Suite Require?
For most Calgary homes adding a basement suite, 200 amp service is the minimum practical starting point. Under the Alberta Electrical Code, load calculations for a two unit residential building determine the minimum service size required. The calculation factors in the square footage of both units, the heating method, and major appliances in each unit.
In many cases a 200 amp service is sufficient for both the main dwelling and the suite, provided the panel has adequate breaker capacity and the load calculation confirms it. We run the load calculation during every assessment so you have a code compliant answer before the project starts.
Sub-Panel vs Full Panel Upgrade
Two approaches are common for basement suite electrical work in Calgary:
Full Panel Upgrade
If your home is on 100 amp service or your existing panel needs replacing, a full 200 amp upgrade is the cleanest solution. The new panel has sufficient capacity for both the main dwelling and suite circuits, everything runs from a single point, and the permit and inspection process covers the whole scope in one pass.
Sub-Panel for the Suite
If your home already has a 200 amp service with adequate capacity, a dedicated sub-panel for the suite is often the preferred approach. The sub-panel is fed from the main panel, houses all the suite circuits, and provides a clear separation between the main dwelling and suite electrical systems. This is cleaner for tenants, simpler for metering if required, and easier to manage ongoing.
We recommend the right approach based on your existing service, panel capacity, and the suite layout during the site assessment.
Separate Metering for a Calgary Basement Suite
Calgary does not require separate metering for a secondary suite, but many homeowners choose it so utility costs can be split with tenants. Separate metering requires ENMAX coordination and a meter base that supports multiple meters. If separate metering is your goal, it is worth planning at the same time as the panel upgrade rather than adding it later. We handle the ENMAX coordination for metering setups on every job where it is required.
The Permit and Inspection Process in Calgary
Basement suite electrical work in Calgary requires both an electrical permit and a development permit from the City of Calgary. These are separate permit streams and both must be in place before electrical rough-in begins. The electrical permit covers the panel upgrade and all suite wiring. The City of Calgary electrical inspection follows once the rough-in is complete and before walls are closed in.
We pull the electrical permit and manage the City of Calgary inspection on every job. The development permit is the homeowner’s responsibility to obtain through the City of Calgary Planning and Development department before we start.
What Does Basement Suite Electrical Work Cost in Calgary?
| Scope | Price Range | Notes |
|---|---|---|
| 200 amp overhead service upgrade | $4,000 to $6,000 | Includes new panel, updated service entrance, ENMAX coordination, City of Calgary permit and inspection |
| 200 amp underground service upgrade | $7,000 to $10,000 | Involves underground conduit and service lateral. Common in newer Calgary neighbourhoods and infills |
| Sub-panel installation for suite | $1,500 to $3,000 | Fed from existing 200 amp main panel where capacity is sufficient. Includes sub-panel, feeder conductors, permit and inspection. |
Suite wiring — running circuits for kitchen, bathroom, bedroom, and heating, is quoted separately based on the suite layout and is in addition to the panel or sub-panel work above.
Planning Solar or an EV Charger at the Same Time?
If you are upgrading your panel for a basement suite and also have solar or an EV charger on your radar, doing all of it under one project is significantly more cost-effective. One permit, one ENMAX coordination, one City of Calgary inspection. We handle solar installation and EV charger installation in house alongside panel upgrades — no subcontractors and no separate mobilisation costs.
Why Choose Panel Upgrade Experts
We have completed over 1,000 electrical panel upgrades in Calgary and surrounding communities since 2013. Every job is completed by licensed Red Seal electricians under Master Electrician oversight with no subcontractors. We carry a 10 year workmanship warranty and manage the full process from permit to ENMAX coordination to City of Calgary inspection.
See our electrical panel upgrade service or call us at 403 774 7460 to book an assessment. We serve Calgary, Cochrane, Okotoks, and Chestermere.
Frequently Asked Questions
Do I need a panel upgrade for a basement suite in Calgary?
In most cases yes. Homes on 100 amp service require a 200 amp upgrade before a suite can be added. Homes on 200 amp service may be able to use a sub-panel depending on existing load and available capacity. We confirm during the site assessment.
Do I need a separate meter for my basement suite in Calgary?
It is not required but it is an option. Separate metering requires ENMAX coordination and a compatible meter base. We handle the ENMAX coordination where separate metering is part of the project scope.
What permits do I need for a basement suite in Calgary?
You need a City of Calgary development permit and a separate electrical permit. The development permit is obtained through City of Calgary Planning and Development. We handle the electrical permit and inspection.
Can I run the suite and main dwelling off the same 200 amp panel?
Often yes, provided the load calculation confirms sufficient capacity. We run the Alberta Electrical Code load calculation during every assessment to confirm before any work begins.
How long does the electrical work take for a basement suite?
Panel upgrade and sub-panel installation typically takes one to two days. Suite rough-in wiring depends on the layout and is scheduled separately once the panel work is complete and inspected.
Do you serve areas outside Calgary?
Yes. We serve Cochrane, Okotoks, and Chestermere in addition to Calgary.
