What Is a Deadbolt?
Pick the right lock for your doors
Deadbolts are commonly used on exterior doors, and many families sleep more soundly and securely knowing they have one installed.
Installing a deadbolt lock has many benefits. Still, you need to determine if it makes sense for your household before buying one. There are many different deadbolt locks on the market, and you can see which one is the best fit for you.
Single-Cylinder Deadbolt
A single-cylinder deadbolt lock has a thumb-turn lock inside, and the outside has a keyhole for locking and unlocking. This type of deadbolt secures your home with a simple turn of a knob, making them quick to lock and unlock when coming and going.
Double-Cylinder Deadbolt
The double-cylinder deadbolt requires a key on both sides. So when you lock the door from the inside, you need to use a key for added protection.
Keyless Locks
There are two popular keyless lock types on the market: keypad locks and smart locks.
Keypad locks require a numerical code to lock and unlock. Smart locks use Wi-Fi networks to lock and unlock the door wirelessly. No keys? No problem.
They're also convenient and efficient if you have dog walkers or babysitters who need access to your home. You won't have to give away multiple sets of keys!
Deadbolt Grades
The Builder's Hardware Manufacturers (BHMA) created the American National Standards Institute (ANSI) grading system for deadbolts. This grading scale ranges from 1 to 3, with 1 representing the highest grade and most secure locks and 3 representing the lowest grade. This system takes into account the lock's longevity, toughness, and latch length.
Grade 3
These deadbolts are tested to withstand 800,000 openings and closings. They have a five-eighths-inch latch bolt and will hold up against two strikes of 75 pounds of force. They're graded the least secure of the three grades.
Grade 2
Deadbolts in this category are nearly identical to grade 3 deadbolts. They have the same test openings and closings, and the same latch bolt size. The distinction is that these deadbolts can withstand five blows of 75 pounds of force.
Grade 1
These are the most secure deadbolts and are often used in warehouses to secure doors and windows. The latch bolt is a whole inch long, and the deadbolts receive one million openings and closures before approval. These deadbolts can endure 10 strikes from 75 pounds of force.
Benefits of Deadbolt Locks
According to locksmiths, deadbolts are the key to home security. Here are some benefits of having a deadbolt installed:
Protected Entry
According to the FBI’s Uniform Crime Reporting (UCR), in 2019, 55.7% of burglaries involved forcible entry. Deadbolt locks provide a much tighter seal for your doorframe and are made from machined steel, making them more durable than traditional locks. The key takeaway is it’s better to have a protective barrier to help deter burglars than the bare minimum.
Inexpensive Options
The cost of a deadbolt lock and installation depends on the lock you choose. Deadbolts are inexpensive and can cost anywhere from $10 to $45. In contrast, smart locks cost upwards of $100. You can install a lock on your own, or a local locksmith charges around $135 to $145. Depending on the type of deadbolt you choose, you can expect to pay $145 to $245 for labor and the locking mechanism. The cost to change your existing locks can vary as well.
Easy Installation
Deadbolts are quick and easy to install. A local locksmith will be able to install your deadbolt lock in one brief appointment. Hiring a locksmith costs $50 to $200 on average.
Deadbolt Lock Disadvantages
Deadbolts are stronger and more difficult to compromise than other locks, but they’re not entirely impenetrable. Break-ins can still happen no matter which type of lock your doors have.
The best thing you can do is to learn how to protect your home from burglary by taking steps like limiting spare keys you give away and installing an alarm system. You can also install a home security door and frame reinforcement kit to add an extra layer of protection to your door and frame.
Frequently Asked Questions
A deadbolt has a different design, construction, and security level than a regular lock. Regular locks are mostly used for interior doors around the home, like bedrooms and bathrooms, and they usually include a locking mechanism on the inside. While regular locks are easy to use and install, they provide little security.
A deadbolt adds a layer of security and is most commonly used on exterior doors. The installation is typically more complicated, but they hold up to wear and tear.
A deadbolt lock is typically considered more secure than a regular lock based on its internal construction. Each deadbolt type has varying levels of security, ranging from withstanding a small amount of force to those that can take on multiple strikes and greater force. Regular locks provide little to no security and are typically used more for easy entry and simple installation.
Yes. Although smart deadbolts are more expensive than traditional ones, their flexibility and advanced security make them well worth the investment. With smartphone integration, biometric sensors, and keypads, you can unlock your door from anywhere and easily manage access for guests—no keys necessary. They also provide enhanced security with encryption and tamper alerts, minimizing risks like lost or duplicated keys. However, smart deadbolts aren’t perfect. They raise privacy concerns and can be a headache to install, but they offer an extra layer of convenience and protection that’s hard to ignore.
- 8 Types of Deadbolts: Which Is Best for Your Door?
- What Is a Double-Keyed Deadbolt Lock?
- Double vs. Single Cylinder Deadbolt: Which Is Better for Your Home?
- What’s the Difference Between Single- vs. Double-Cylinder Deadbolt Locks?
- Smart Door Locks vs. Traditional Locks: Key Comparisons
- How to Pick a Lock (And When It's Time to Call a Locksmith)
- The 12 Most Common Types of Door Locks
- 5 Common Signs Your Locks Have Been Tampered With and What to Do About It
- Should You Change the Locks on a New House?
- Which Is Better: Rekeying vs. Changing Locks?
Get our Angi-powered app
