Commercial Demolition Process: What Calgary Business Owners Should Know

Before the first wall comes down, there is a fair amount of work that happens behind the scenes. 

A commercial demolition project may involve permit approvals, utility disconnections, asbestos checks, site preparation, equipment planning, and decisions about how the structure will be taken down. Missing one of these steps can affect the schedule before demolition even begins.

For anyone planning commercial demolition in Calgary, knowing what happens before, during, and after the building comes down can make the entire process easier to manage. Let’s look at how the process works from start to finish.

What is Commercial Demolition?

Commercial demolition is the process of tearing down or removing part or all of a commercial building, offices, retail spaces, warehouses, or other business properties to prepare a site for redevelopment or an additional or full rebuild.

The work may involve demolishing an entire building, removing part of a structure, or cleaning specific areas as part of a larger redevelopment project.

In Calgary, a demolition permit is generally required to demolish a building, perform partial demolition, or reduce a building to its foundation. Interior commercial demolition is handled differently and generally requires a commercial improvement building permit rather than a demolition permit.

Commercial Demolition Process in Calgary: Step-By-Step

Every commercial demolition process follows the same sequence, though the specific steps can vary depending on the project. The exact work will depend on the building, site conditions, scope of demolition, and applicable Calgary requirements.

1. Pre-Demolition Assessment and Planning

The first step is to understand what is being demolished and the conditions surrounding it.

A demolition contractor in Calgary will assess the building, its structure, surrounding property, access points, utilities, and potential hazards. The project team can then determine the appropriate demolition method and sequence. Commercial demolition planning may include:

• Reviewing the building and site
• Identifying structural considerations
• Checking utility locations and connections
• Assessing access for workers and equipment
• Identifying hazardous materials
• Planning site protection and controlled access
• Establishing the demolition sequence
• Developing a project schedule

Consider a commercial building that is located directly beside an occupied property. The contractor cannot plan the demolition in the same way as they would for a standalone building on an open site. Equipment access, work zones, dust control, and protection of the neighbouring property become increasingly important.

This assessment is also where potential problems can be identified early, rather than after demolition has already started.

2. Securing Permits and Meeting Calgary Requirements

The next step is making sure that the required permits and documentation are in place.

For a full or partial building demolition in Calgary, a demolition permit is generally required. The application can require supporting information such as utility disconnection documentation, asbestos-related documentation, and a public tree disclosure statement. Additional requirements may apply depending on the building and site.

Certain projects have additional requirements. For example, Calgary identifies a public protection site safety plan and an advanced weather forecasting system requirement for buildings five stories or greater. Heritage review can also apply to demolition applications.

This is why checking the commercial demolition permit requirements early is important. The City of Calgary provides detailed information on the permits and requirements involved in demolition projects.

3. Utility Disconnection and Site Preparation

A building cannot simply be demolished while active utility services remain connected. Before work begins, the required water, electrical, gas, and other services need to be addressed.

Calgary demolition requirements include determining which utilities need to be disconnected and obtaining the required signatures for applicable water, electrical, and gas services before submitting the application. The time required can vary depending on the utility provider.

Once the site is ready, the contractor can establish controlled access and prepare the work area. This may include:

• Installing fencing and signage
• Establishing controlled access
• Creating equipment entry and exit routes
• Setting up exclusion zones
• Protecting neighbouring properties
• Planning dust and site controls

These details may seem minor compared with the actual demolition, but they can have a major effect on how smoothly the project runs.

4. Hazardous Materials and Asbestos Checks

Before the demolition begins, hazardous materials (substances that can be harmful to people or the environment) need to be identified and dealt with.

Asbestos is one of the main concerns that needs to be addressed before building demolition. Calgary requires the building to be inspected by a professional asbestos removal company before demolition. The applicant must obtain confirmation that there is no asbestos or have any identified asbestos professionally removed before demolition.

According to Alberta’s Occupational Health and Safety (OHS) Code, all materials that can release asbestos fibers must be safely removed before a building is demolished.

This is one reason asbestos assessment should be addressed early rather than after demolition planning is already underway.

5. The Demolition Phase

Once all the necessary planning, permits, utility work, and hazard controls are completed, the actual demolition can begin.

The contractor follows the planned demolition sequence and uses equipment suited to the structure and site. Depending on the project, the work may involve mechanical demolition, controlled dismantling, or a combination of methods.

Throughout the stage, the site needs to remain controlled. Workers must follow the planned sequence, maintain exclusion zones, manage site hazards, and take precautions around neighbouring buildings, roads, pedestrians, and other occupied areas where applicable.

The goal is not simply to remove the structure. It is to do so in a controlled manner that keeps the work area manageable and protects people and surrounding property.

6.  Material Sorting, Recycling, and Site Clearance

The demolition process does not end when the building comes down. Materials need to be collected, sorted, transported, recycled where possible, and disposed of according to applicable requirements.

Depending on the project, materials may include concrete, metal, wood, fixtures, and other building components.

Hazardous materials require separate handling and disposal procedures. Calgary has specific requirements for commercial asbestos disposal, including permitted disposal arrangements.

After the material has been removed, the contractor completes the remaining site cleanup and prepares the property for its next stage of use or development.

How Long Does Commercial Demolition Take in Calgary?

A commercial demolition project in Calgary can take a few days to several weeks to complete, depending on the size of the building, scope of demolition, site conditions, and required preparation.

A small interior commercial demolition may be completed much differently from the demolition of a multi-storey building. The overall commercial demolition time frame can also be affected by:

• Building size and construction
• Scope of demolition
• Permit requirements
• Utility disconnections
• Asbestos or other hazardous materials
• Site access
• Demolition method
• Weather and site conditions
• Additional reviews or approvals

How Much Does Commercial Demolition Cost?

There is no fixed price for commercial demolition in Calgary. As a general planning range, commercial demolition can cost about $8 to $25 per square foot, depending on the building and scope of work. A smaller commercial project may cost around $20,000 or more, while large or complex building demolitions can reach $500,000 or higher.

The final cost of a commercial demolition depends on factors such as building size, construction type, demolition scope, site access, equipment, utility disconnections, hazardous materials, and disposal requirements.

For example, demolishing a vacant standalone building is likely to cost less than removing a multi-story structure in a tight urban site with neighbouring properties.

For an accurate estimate, a demolition contractor in Calgary should assess the property and scope of work before providing a quote.

What Can Delay a Commercial Demolition Project?

Good planning can keep a commercial demolition project moving. Business owners can help by taking care of key details before work begins.

• Confirm the Project Requirements: Clearly define what needs to be demolished and what needs to remain. Changes to the scope after work starts can affect the schedule and cost.
• Start Approvals Early: Make sure the required permits, inspections, and supporting documents are addressed before setting the demolition date.
• Plan Site Access: Confirm where equipment, workers, and trucks will enter and leave the property. Limited access can affect how demolition work is carried out.
• Complete Required Inspections: Arrange necessary asbestos and hazardous material inspections early so unexpected findings do not hold up the start of demolition.
• Coordinate With Nearby Properties: If the building shares access, walls, or services with neighbouring properties, manage those issues before demolition begins.
• Build Some Flexibility Into the Schedule: Allow extra time for unexpected site conditions or changes that may arise once work is underway. This is particularly important for older or complex commercial buildings.

Taking care of these details before demolition starts can make the project easier to schedule and manage.

What Should You Ask a Demolition Contractor Before Work Begins?

Before hiring a demolition contractor in Calgary, you should have a clear understanding of how the project will be handled. Ask these questions:

• Who will handle the required permits?
• What demolition method will be used?
• How will utilities be disconnected?
• Has the building been assessed for asbestos?
• How will the site be secured during demolition?
• How will recyclable and hazardous materials be handled?
• What factors could affect the project timeline?
• What will the site look like after demolition and cleanup?

A contractor should be able to explain the process clearly and identify potential issues before work begins. This gives you a better basis for comparing commercial demolition services and planning the next stage of your property project.

Conclusion

Commercial demolition is a big step in preparing a property for renovation, redevelopment, or a completely new use. Having a clear plan from the start can help you avoid unnecessary setbacks and make sure the property is ready for what comes next.

If you are planning a commercial demolition project in Calgary, Done Fast Demolition can help you manage the work from planning through site clearance. Their team can assess your project, coordinate the demolition work, and help keep the process organized from start to finish.