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Door Security Devices: An Effective First Line of Defense

Updated on September 27, 2011

Do You Need Door Security Devices?

Every home can benefit from door security devices to protect the occupants and their belongings. Home invasions are a common occurrence in many areas of the country. Millions of people live by themselves or in shared living situations where they may be particularly vulnerable. Increasing security may be important for many homeowners and renters, but cost is often a prohibitive factor that bars them from taking preventative measures.

Luckily however, there are a number of door security devices, and other security options as well, that are very affordable and yet effective. The items shown on this page are also very simple to install. Some of them merely slide in place, while others only require drilling a few holes.

Some door security devices offer alarms to scare off intruders and alert home owners while others physically act to stop any forced entry. Any one of these items can help improve the level of security of your home, but in some cases, using more than one measure is the safest bet.


One type of door security device is an alarm. There are of course a number of security systems that will monitor your home for which you pay a monthly fee to have an outside organization monitor it and send help if needed. A search online will reveal the options.

However for those on a tighter budget, you can set up door and window alarms that will sound to scare off intruders. In some instance these devices will also call numbers that you program into them, alerting you or whomever you choose.

One type of door alarm is a simple door stop. There is no real installation required. It merely slides under the bottom of the door. Then, if someone attempts to open the door, a 120dB alarm goes off scaring away the intruder and alerting you, and potentially your neighbors, of the attempted entry.

Some alarms are a just a bit more sophisticated. For instance, another popular option involves mounting a base station on the wall and a sensor over any doors or windows you wish to monitor. When motion is detected, the alarm sounds which warns intruders they have been spotted. The alarm alerts those in the home, and in many instances, will use an emergency dialer to call phone numbers that the user has programmed into the device. The dialer will then play a pre-recorded message to those who receive the call. These systems are also easy to install and operate wirelessly, although the base station will require cords to plug them in for AC power and a telephone line. They often use peel and stick adhesive for mounting or perhaps the use of screws if desired.

Security Bars

There are also door security devices that act to prevent an unwanted entry by securing the door. Security bars for regular doors act as a brace that can make it nearly impossible to break in through a doorway.

These devices are very easy to install and can be removed with little effort by the occupant of the home so that they can easily evacuate if necessary. Some of these bars are made from aluminum but the best of them have steel construction and are a bit heavier. They simply slide under the doorknob and brace against the floor.

Some of these security bars are made to brace sliding patio doors and windows. Some include a loud alarm that will scare off intruders and alert the occupant of an attempted break-in immediately.


Locks are another option when you need door security devices. Good locks are one of the first lines of defense and will thwart many home invasion attempts. These locks are affordable and can be installed by the homeowner as long as they are comfortable using a few tools.

Deadbolts of course can be part of your security solution. They are installed in the door and extend into the door jamb, making forced entry very difficult and very noisy. They can be unlocked/locked with a key from the outside and operated with the flip of a knob on the inside. Some of these deadbolts can also be operated with a remote control key fob from distances of 20-30 feet.

Deadbolt locks that provide the highest security may include a high security strike plate, 3" screws which will penetrate wall framing rather than just the door jamb, and they may use staggered screw placement as well. Some may even feature anti-saw pins and anti-drill features to thwart intruders who seek to break the lock. A good deadbolt should have a 1" throw.

Deadbolt locks are available in a variety of finishes so that they can complement other door hardware since they are highly visible from both inside and outside the home. Brass, antique brass, brushed nickel, pewter, antique bronze, and others are available.

Of course there are other locks which make good door security devices as well. Some of them can resist over 2 tons of force. Most of them require the user to drill into the flooring or the stud adjacent to the door jamb for secure mounting. (Proper mounting is key for these security devices to be effective.)These devices are operated from the inside of the home and are appropriate for any inward swinging door.


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    • theherbivorehippi profile image

      theherbivorehippi 7 years ago from Holly, MI

      These are a great idea! I didn't even know they made these!

    • habee profile image

      Holle Abee 7 years ago from Georgia

      Great tips in this time of high crime!

    • prasetio30 profile image

      prasetio30 7 years ago from malang-indonesia

      Thank you very much. I get useful information from you. Good tips from you. Excellent review, my friend.

    • Nell Rose profile image

      Nell Rose 7 years ago from England

      Hi, I love the idea of the door stop, so simple yet effective, once again I knew very little of any of these. great idea. rated up nell