Types of Deadbolts: what are the different types?
In the world of deadbolts, there are 3 types: single cylinder, double cylinder, and keyless entry. These lock types can be used on entry doors or interior doors.
Single cylinder deadbolts require a key to lock from the exterior side and are unlocked from the inside using a turn button. This type of lock is very common in residential properties and offers homeowners the convenience of being able to unlock the door from either side. Single cylinder deadbolts typically have an emergency release feature that allows you to unlock the door from inside without using a key, in case of an emergency.
Double cylinder deadbolts require keys for both sides; meaning the outside and the inside must be locked using a key. The double cylinder deadbolt has two locking mechanisms: one keyhole on the outside, and another on the inside. It's excellent for resistance against forced entry because it can't be accessed from either side with a piece of broken glass or by punching through drywall—someone would have to break both pieces of glass or punch through both sides of drywall to reach both knobs.
Keyless entry deadbolts typically have a code that is used to open the door instead of a key.
Incidentally, a non deadbolt lock is called a padlock, which is a type of lock that is not attached to anything else.
How much does it cost to install a deadbolt lock?
The cost to install a deadbolt lock depends on the type of door you have and whether or not it already has a hole for your lock.
For example, if you have a hollow-core door, installing a lock is easy because they typically come pre-drilled with a hole that's just the right size. You'll only need to provide your own tools and buy the lock itself, which can be done by a locksmith in between the range of $70 to $100.
If you have a solid wood or metal door, though, you'll have to drill your own hole in order to install a lock. This requires more tools and more time spent on installation. In addition, because these doors are harder than hollow-core doors, there's also a chance you won't get your measurements correct and will end up with an unusable door—which means having to hire a professional anyway.
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What deadbolt is the best?
What's the best deadbolt? It depends on what you're looking for. The best deadbolt for an apartment dweller may be different than the one that would be best for a homeowner. So let's break down the details of each kind of deadbolt door lock type, based on what they're good at.
Apartment Deadbolts
If you live in an apartment, you may be able to install a deadbolt yourself (check with your landlord first). Installing it is a fairly straightforward task, but can get complicated if done incorrectly. Make sure to follow directions, and don't hesitate to hire a professional installer if you run into trouble.
Apartment deadbolts are usually less expensive than homeowner deadbolts, but they also usually offer fewer features than homeowner ones do. For example, most apartment locks don't have fingerprint scanners built-in or come with smart home capabilities.
Homeowner Deadbolts
If you own your house or condo, installing a deadbolt can be as simple as replacing an old one or as involved as replacing your entire door frame and then installing one. You'll likely have to hire a professional locksmith regardless of which route you take.
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