Close-up of a lockable handle on a black and white door, with an astragal installed that prevents prying between the lock and handle.
Close-up of a lockable handle on a black and white door, with an astragal installed that prevents prying between the lock and handle.

Astragals & Interlockers in Edmonton


There are two main types:

  • T-astragals — mounted to one door leaf, overlapping the other when closed

  • Split astragals — mounted to both door leaves, meeting in the middle

What Is an Interlocker?

An interlocker is a more robust solution for high-security or heavy-duty applications. Where a standard astragal closes the gap, an interlocker features interlocking profiles on both door leaves — when the doors are closed, they physically interlock, making the doors dramatically harder to pry apart.

Interlockers are commonly used on commercial storefronts, warehouses, institutions, and any property where security is a top priority.

Do You Need an Astragal or Interlocker?

If your property has double doors and you answer yes to any of the following, the answer is yes:

  • You can see or feel light or air between your closed doors

  • The gap between your doors can be accessed from outside

  • Your doors are in a high-risk area (retail, pharmacy, commercial property)

  • Your insurance provider has flagged your double doors as a security risk

Frequently Asked Questions

What's the difference between an astragal and an interlocker?
An astragal covers the gap between doors. An interlocker features interlocking profiles that physically connect the two door leaves when closed — offering a higher level of forced entry resistance.

Can I add an astragal to my existing doors?
In most cases, yes. Our technicians will assess your doors and recommend the right product and mounting method.

Do astragals affect how the doors operate?
When installed correctly, they shouldn't. We take care to ensure smooth operation after installation.

Are astragals required by code?
In some commercial applications, yes. We can advise on what's typical for your building type.

Call Ace Locksmith at (780) 999-0456 or contact us online to secure your double doors today.

Double doors look impressive — but without the right hardware, they're one of the easiest entry points for a forced break-in. Astragals and interlockers are the solution, and they're one of the most overlooked security upgrades for commercial and residential properties in Edmonton.

Ace Locksmith Services supplies and installs astragals and interlockers for all types of double door applications — from apartment building lobbies to retail storefronts, office entrances, and private homes.

What Is an Astragal?

An astragal is a vertical strip of material — typically aluminum or steel — mounted to one or both edges of a double door, closing the gap where the two doors meet. Without an astragal, that gap is a vulnerability: it can be pried open, allows light and air to leak through, and significantly weakens the door's resistance to forced entry.

Call Now: (780) 999-0456

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Testimonials

  • "Joe came out to my clients home for a service call today. He was able to make it on short notice which I appreciated! The lock servicing itself was quick and he seemed knowledgeable about the old school type of lock we were dealing with as well. I would happily recommend Ace! :)"

    Kat S.

  • "Excellent service. He was quick to provide a quotation and answer all my queries. He also came and installed the door lock and I am very impressed with his service and quality of work. Thanks!"

    Danielle K.