Burglars and vandals have an easier time breaking into a home when they find an exterior door without a deadbolt. Even a door with a quality lockset can be vulnerable since the latch often doesn’t extend far enough into the door frame, and the strike plate may not withstand a forceful kick.
Adding a deadbolt or reinforcing an existing one provides extra security beyond a standard lockset. Here’s how to do it.
Choose a Quality Deadbolt
Your first step is to choose a high-quality deadbolt. When you’re shopping, think about these factors:
- Price: It’s tempting to choose a $10 deadbolt over a $30 one, but we recommend going for a more premium model if you can afford it. A small cost difference can make all the difference in security and durability.
- Brand reputation: Choose a deadbolt from a reputable brand like Baldwin, Kwikset, or Schlage.
- Bolt length: The deadbolt should extend at least one inch into the door jamb when it’s fully extended. This depth provides better resistance against kick-ins. If a deadbolt has a shallower depth, don’t buy it.
- Keyed or thumb-turn: Many deadbolts feature a thumb-turn latch to lock and unlock it from the inside. However, burglars can always break a nearby window and reach inside to disengage the lock. If you have a glass door or sidelights around the door, think about a deadbolt operated by keys on both sides.
- Emergencies and safety: Some building codes mandate thumb-turn latches for safety in case of fires or other emergencies. Contact your local government for more information.
Reinforce the Strike Plate
Even the best deadbolt can fail if you don’t reinforce the strike plate. Here’s how to strengthen this crucial component.
Access the Frame
First, remove the trim and casing to access the door frame and prepare to reinforce the strike plate.
Use a Steel Reinforcement Strap
Before you mount the strike plate, attach a 3/4-inch x 6-inch steel strap to the inside jamb edge. These straps brace the section receiving the deadbolt as an extra measure against kick-in attacks. You can easily find them at your local hardware store.
Fill in Gaps
Pack any gaps behind the strike plate area with solid wood strips or putty. Then, install the plate itself with long screws. The screws should extend at least 1 inch into the door frame stud. The longer the screws, the more resistance the strike plate will have.
A simple strike plate reinforcement will give you better security than just a deadbolt off the shelf. If you want to maximize your investment, you can choose to upgrade to a heavy-duty strike plate that has multiple screw holes and can withstand more force.
How Do You Install a Deadbolt?
Your deadbolt’s effectiveness depends on a proper installation. Start by using the right tools. You’ll generally need a drill, chisel, and screwdriver or impact driver to install a deadbolt. Next, prepare the surface before installing the deadbolt by cleaning the door surface and jamb where you plan to mount it. Getting debris out of the way makes for a secure fit and can prevent complications later on.
It’s time to align the deadbolt and strike plate. The deadbolt should align perfectly with the strike plate. Even a slight misalignment can compromise the lock and make it easier for an intruder to force the door open. Finally, test the lock after you install it. The bolt should slide easily into the strike plate with no resistance.
Deadbolt Maintenance Tips
Regular maintenance keeps your deadbolt functioning smoothly and securely. Follow these best practices to keep your lock in top shape:
- Lubricate regularly: Apply either powdered graphite or a spray lubricant on the deadbolt mechanism and strike plate once per year. This prevents corrosion and keeps the lock running smoothly.
- Check the alignment: As your house expands, contracts, and settles, doors can shift, misaligning the deadbolt and strike plate. If you notice any issues, loosen the screws and realign the components.
- Clean and polish: Cleaning and polishing the hardware on your doors doesn’t just make everything look better. It also helps the locking mechanisms operate smoothly.
- Know when to replace the deadbolt: Most deadbolts last up to 10 years with proper care. If lubricating and adjusting can’t restore a worn, damaged, or weathered deadbolt, it’s time to replace it.
When To Seek Professional Help
While many homeowners can successfully install and maintain their own deadbolts, there are times when calling a skilled locksmith might be a better choice. These professionals can help you choose hardware that meets your needs and install it as precisely as possible.
Many locksmiths offer advanced security solutions beyond standard deadbolts, including reinforced strike plates, heavy-duty kick plates, reinforced door frames, extra-long mounting screws, and other hardened entry point techniques.
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So, Is Installing a Deadbolt Worth It?
For most homeowners, reinforced deadbolts substantially boost defenses compared to relying solely on standard locksets vulnerable to intrusions. A small investment in upgraded deadbolt assemblies and strike plates pays dividends by hardening doors against break-ins and preserving home valuation. Burglars typically exploit weak points first, so ensuring all points of entry are secure is essential for improving home security.
FAQs About Deadbolts
It depends. Smart deadbolts enable handy remote access and notifications. However, connectivity introduces hacking risks, so standard deadbolts tend to be more secure. Also, smart deadbolts can be more expensive. Evaluate your needs before deciding.
No national code mandates deadbolt strike plate reinforcement. However, some local building codes include this requirement. Check your jurisdiction specifically. In any area, reinforcement substantially improves security.
Yes—interior deadbolts boost room security. Ensure one other unsecured exit remains accessible for emergencies. Never use deadbolts on bathroom doors.
For exterior doors with glass panes or sidelights, yes. Keyed double-sided deadbolts prevent smash-and-reach attacks, allowing burglars to disengage thumb-turn locks. Keep a key handy inside for emergency fast unlocking.
Use 3-inch screws sinking at least 1 inch into the door frame stud if possible. Check the required screw length before installing. Maximum length provides optimal stability and holding strength.
