Not all locks are built the same. Some are easy to pick or force open. Others are designed to hold strong, even under pressure. If you're trying to decide which lock will actually keep your home or business safe, you’re asking the right question.
Let’s look at three of the most secure lock types:deadbolts,cylinder locks, andsmart locks. Each offers its own advantages, depending on how you plan to use it and what kind of security you need.
You can also explore professional-grade options on our locks page for a closer look at what’s available.
Deadbolts: Built for Strength
Deadbolts are one of the most reliable mechanical locks you can install. They use a thick metal bolt that extends deep into the door frame, making them hard to kick in or pry open.
There are two main types:
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Single-cylinder deadbolts, which use a key on the outside and a thumb turn inside.
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Double-cylinder deadbolts, which require a key on both sides—ideal for doors with nearby glass panels.
If you’re looking for real protection, go with a deadbolt that’sANSI Grade 1 rated. That means it’s been tested for strength and durability under pressure. These are especially effective for front doors, garage entries, or any place where security matters most.
One thing to remember is that even the strongest deadbolt won’t help if it’s installed on a weak frame. Reinforcing the door and using longer screws in the strike plate can make a big difference.
You’ll find a full range of deadbolt options on our locks page, including models designed for both homes and businesses.
Cylinder Locks: Secure and Adaptable
Cylinder locks are common in both residential and commercial spaces. They get their name from the cylindrical mechanism where the key is inserted. The great thing about cylinder locks is how easy they are to rekey or upgrade—without replacing the entire lock.
When properly installed, high-quality cylinder locks can offer strong protection. Look for features likeanti-drill plates,anti-pick pins, andbump resistance. These help prevent forced entry and tampering.
They’re especially useful if you manage rental properties or need to update keys often. And if you already have a good door handle or hardware in place, swapping in a high-security cylinder is a smart move.
This type of lock is also popular in multi-tenant buildings and offices where different users may need different access levels. It gives you control without a full hardware overhaul.
For rekeying services, upgrades, or commercial-grade options, check out our locks page.
Smart Locks: Security with Flexibility
Smart locks offer more than just convenience—they give you control. Whether you’re managing an office, short-term rental, or busy household, smart locks let you decide who gets access and when.
You can unlock a smart lock using:
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A smartphone app
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A custom keypad code
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A fingerprint, fob, or access card
Some models even send notifications or keep a log of who entered and at what time. That kind of visibility can be a game-changer for property owners and managers.
Just make sure to choose a smart lock that’s built with security in mind. Look for strong encryption, tamper alerts, and a backup battery or key override in case of emergencies.
Smart locks work best when paired with a solid physical lock, like a deadbolt, so you get both convenience and real protection.
They also offer a level of flexibility that’s hard to match—especially if you’re dealing with multiple users or want to avoid handing out physical keys.
So, Which Lock Is Best for You?
It depends on what you’re trying to protect—and how you plan to manage it.
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Want maximum strength with no tech involved? Go with ahigh-grade deadbolt.
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Need flexibility to rekey or upgrade easily? Choose asecure cylinder lock.
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Want to track access, assign codes, or skip the keys altogether? Asmart lock is your best bet.
In many cases, using a combination—like a smart lock with a backup deadbolt—offers the most complete solution.
Need Help Choosing the Right Lock?
The best lock is the one that fits your specific needs. At CK Security, we help homeowners, landlords, and business owners find lock solutions that work—and hold up over time.
We don’t just install locks—we help you figure out what actually makes sense for your space, your routine, and your peace of mind. From first-time setups to complex upgrades, we’ve got the tools and experience to do it right.
If you’re not sure where to start, we’re happy to walk you through your options.
Visit our locks page to get started or reach out to speak with a locksmith who cares about getting it done right.
