Lock change
Fast and professional lock replacement after wear, break-in, lost keys, or moving.
We install lock models adapted to your door, budget, and desired security level.
RESIDENTIAL LOCKSMITH | BROSSARD AND SOUTH SHORE
Complete residential protection for your home
NT Security handles your residential needs: door opening, lock changes, re-keying, mailboxes, intercoms and reinforcement of entry points.
Most requested residential services
Installation, repair and maintenance
Installation of new locks, repair of defective mechanisms, and preventive maintenance of your existing locks.
Careful service to ensure reliable operation, extend the life of your hardware, and maintain your security level.
Lock re-keying and master key system
We reconfigure your cylinders so old keys no longer work, without replacing the entire lock.
Ideal solution after moving, lost keys, or tenant change, with optional master key system.
Mailbox
We install and replace mailboxes and mailbox locks.
Quick intervention with careful adjustment for smooth and reliable daily operation.
Intercom system repair
Diagnosis and repair of residential intercom systems to restore communication and access.
Access control
We install and replace residential access control systems.
Access programming, precise adjustments, and complete verification for simple and secure use.
Our intervention method
1. On-site evaluation
Analysis of your doors, locks, and sensitive areas to target priorities.
2. Clear recommendation
Security options explained simply with estimate before execution.
3. Installation and verification
Clean installation, final adjustments, and usage advice for your family.
What we handle
- Lock change after lost keys or moving
- Re-keying of existing accesses
- Installation of security hardware
- Door opening without damage when possible
- Frame reinforcement and closing points
- Practical advice for controlling key duplicates
Why families choose us
Our customers choose us for our fast interventions, clear explanations, careful execution, and respectful service to your home.
Frequently asked questions
Can you open a door without breaking the lock?
Yes, when the mechanism allows it, we always prioritize non-destructive opening.
Is it better to change the lock or re-key it?
Re-keying is often sufficient if the lock is in good condition. We advise you on-site.
Do you work by appointment?
Yes, residential interventions are mostly planned according to your availability.
Schedule a residential intervention
Talk to a locksmith for a simple evaluation and useful recommendations.