What’s the Safest Way to Manage Third-Party Building Access?
- Calgary Lock & Safe
- 6 days ago
- 4 min read
If you manage a commercial property in Calgary, you already know this problem well. Vendors, contractors, cleaners, IT teams, and maintenance crews all need access to your building. The challenge is not giving access. It is controlling it.
Poorly managed third-party access is one of the most common security gaps in modern buildings. In fact, research shows it is one of the most exploited entry points for security breaches due to excessive permissions and weak oversight .
So what is the safest way to manage it?
At Calgary Lock & Safe, we help property managers build systems that give you full control without slowing down operations. Here is how to approach third-party access the right way.
Start With One Rule: Limit Access by Default
The biggest mistake we see is over-access.
Too many buildings give vendors more access than they actually need. This increases risk immediately. If a key, fob, or code is shared or lost, it can open more doors than intended.
The safest approach is based on the principle of least privilege. This means every third party only gets access to the exact areas required to do their job, nothing more.
For example:
A cleaning crew should not have access to mechanical rooms
A delivery vendor should not be able to enter tenant floors
A contractor should not retain access after the job is complete
If you are not sure who currently has access to what in your building, Calgary Lock & Safe can audit your system and identify gaps quickly.
Move Away From Keys and Static Access
Traditional keys create long-term risk. Once they are handed out, they are difficult to track and even harder to revoke.
Modern access control systems solve this problem by replacing physical keys with:
Key fobs
Mobile credentials
Managed access cards
These systems allow you to instantly grant, change, or revoke access without rekeying your entire building.
More importantly, they create visibility. You can see who accessed which door and when.
Looking to replace outdated key systems? Calgary Lock & Safe can design a centralized access control system tailored to your property.
Apply a “Never Trust, Always Verify” Mindset
A secure building does not assume anyone is safe just because they have access. Every entry should be verified.
This approach is based on what is known as the Zero Trust model. It requires continuous validation of users rather than one-time approval.
In practice, this looks like:
Unique credentials for every vendor
Multi-factor authentication for sensitive areas
No shared codes or generic access
If multiple people are using the same fob or code, you have already lost visibility.
Control Where Vendors Can Go
Access should never be building-wide unless absolutely necessary.
The safest buildings segment access by:
Floor
Tenant space
Equipment rooms
Time of day
This ensures vendors can only enter the areas relevant to their work. It also reduces the risk of movement throughout the building if access is compromised.
For high-density properties, this is critical. The more tenants and shared spaces you have, the more important segmentation becomes.
Set Time Limits on Every Access Credential
One of the most common security gaps is expired access that never gets removed.
A vendor finishes a job, but their fob still works months later.
The safest systems solve this by making all third-party access:
Time-bound
Automatically expiring
Easy to revoke instantly
This ensures your building is not exposed long after the work is done .
Track and Monitor Activity
If you cannot see what is happening, you cannot control it.
Modern access control systems provide detailed logs of:
Entry times
Access points used
Failed access attempts
Continuous monitoring allows you to detect unusual behavior early and respond before it becomes a problem.
This is especially important for:
After-hours access
High-risk vendors
Sensitive areas
Vet Vendors Before You Give Access
Security does not start at the door. It starts before access is even granted.
Before onboarding a third party, you should:
Verify their identity
Review their security practices
Clearly define their scope of access
Organizations that assess vendor risk upfront are significantly less likely to experience security incidents.
Centralize Control Across Your Entire Property
Managing access across multiple systems or buildings creates confusion and gaps.
The safest approach is centralized control. This means:
One system for all access points
One place to manage permissions
One clear view of activity
Centralized systems reduce human error and ensure consistency across your property.
The Bottom Line
Managing third-party building access is not about restricting operations. It is about controlling risk.
The safest approach combines:
Limited, role-based access
Modern access control systems
Continuous monitoring
Time-restricted permissions
Strong vendor onboarding
As buildings become more complex, these systems are no longer optional.
They are essential.
If you are still relying on keys, shared codes, or manual tracking, your building is more exposed than you think.
Ready to take control of third-party access in your building? Contact Calgary Lock & Safe to design a system that keeps your property secure without slowing your operations.
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