Building Demolition: 7 Things You Need to Know
To many people, demolition seems like a simple project featuring hammers swinging through drywall and flying wrecking balls! However, demolition is a serious business that involves many considerations. Before starting any demolition project, large or small, there are a few things you need to be fully aware of if you want the process to go safely and efficiently.
With over 60 years of experience in the construction industry and achievements throughout Quebec, our demolition experts tell you everything you need to know!
1. Demolition is Reserved for Professionals
The dark side of demolition is unpredictable, so it should never be considered an amateurs’ task. There are permits to obtain, rules to follow and risks of injury. In addition, structures do not always collapse as intended. Some do not meet modern building codes. Older ones may be filled with asbestos and the dust can quickly get out of control. Because of these factors, demolition must always be done by professionals.
2. How Long does a Demolition Project Take?
Demolition is often the fastest phase of a construction or renovation project. For a full demolition, a house can be completely demolished in a day or two. For a remodel (where large portions of the structure are retained), the entire demolition process can be completed within a week.

3. Are Demolition Permits Required?
Demolition permit requirements vary considerably from region to region, but in almost all cases a permit is required. Expect a lot of paperwork, inspections and some fees that you may want to include in your budget. It is recommended that you follow the rules regarding the legal ramifications of demolition.
Regulations once again highlight the importance of trusting the right professionals. For example, our Bellemare experts are familiar with rules and permits required to operate in the vast majority of Quebec municipalities.
4. The Importance of Properly Defining a Demolition Project
Of course, you don’t want to tear down something that should stay! That is why it is extremely important to clarify what is to be demolished and what is not. This is especially true for partial demolitions. Because, unfortunately, there is no going back!
Our demolition experts always favour a personalized approach, regardless of the complexity or scope of your projects, allowing us to clearly detail what must be demolished or not.

5. Is a Site Inspection Required?
An important part of the demolition process is the inspection of the site to determine if there are any harmful materials present, including lead paint, asbestos or other toxins. One of the major problems often encountered is asbestos. When a structure contains asbestos, certain rules must be followed and they vary depending on what is to be demolished (e.g., house or commercial building). These rules are not there to make the project more complicated, but rather to ensure your safety, your neighbours and the demolition team’s safety.
At Groupe Bellemare, we provide soil decontamination and asbestos removal services, when necessary!
6. Are the Building Materials Recycled?
A significant amount of construction waste can be recovered or recycled. This practice is essential because it makes demolition much more environmentally responsible. Recycling is particularly important to us, which is why we offer a container rental service to get the materials to our sorting center.
If you don’t know what size construction waste container will be needed for your project, consult our guide!
Here are the main materials that can be recycled following a building demolition:
- Brick
- Metal
- Gypsum
- Wood
- Shingles
- Asphalt
- Concrete
- Glass
- Plastic
7. Utilities Must be Shut Off
For obvious safety reasons, it is essential that utilities be shut off before demolition begins. This includes electricity, water, sewer and natural gas. Notify these respective utilities to ensure that everything is done the day demolition begins.
Why Trust Groupe Bellemare for your Demolition Project?

With many successes throughout the province and a pride in our work, our team of residential and commercial demolition specialists can adapt to any project.
We offer a turnkey service that is safe, environmentally responsible and efficient. To ask us questions or to request a quote, contact us right now!