10 Best Security Door Locks of December 2025

• KEEP YOUR HOME SAFE – Designed to withstand 800 lbs. of force, this U 10827 satin nickel finish door reinforcement lock helps to prevent doors from being kicked in, increasing your home security and keeping you and your family safe!
• EASY INSTALLATION – The included 3” hardened screws make installation a breeze – extra security and peace of mind can be achieved in just minutes. Length is 2 to 0.19 inch. Width is 1 to 0.38 inch.
• ADDITIONAL HOME SECURITY - Use this high security door reinforcement lock for additional home security on any swing-in door of any door thickness. It helps to ensure any door cannot be opened from the outside.
• CHILD-SAFE AND TAMPER-RESISTANT – This Defender Security door blocker by Prime-Line has a spring-loaded design that is both child-safe and tamper-resistant. It can be installed higher on the door where your children can’t reach! Plus, not only can doors not be kicked in by intruders, it protects against lock picking and bumping while in the locked position.
• WATCH THE VIDEO ON THIS PAGE for installation tips and operating instructions.Pull Projection:1 inch
• PRE-DRILLING – The included 3 in. security screws require holes to be pre-drilled with 1/8 in. drill bit.

Defender Security

• BEST ADJUSTABILITY ON THE MARKET: Adjust the sliding door lock from 19” to 51” inch (19” to 33.25” on 2 bars, 36.5” to 51” on 3 bars) to enjoy peace of mind when you are leaving the door partially open or if you simply want additional security.
• YOUNG ONES CAN'T GET OUT: Child proof lock and height prevent kids from getting out. Height also allows for a comfortable adjustment of the sliding door lock bar.
• INTRUDERS CAN'T GET IN: Heavy duty door and window security bar serve as BOTH A PHYSICAL & VISUAL DETERRENT on most patio doors and windows
• QUICK AND EASY TO INSTALL: In a matter of minutes, you will enjoy a SECURE AND RELIABLE PROTECTION from our sliding glass door lock that is drilled into a door frame and won't loosen over time.
• WHAT'S INCLUDED: Sliding Glass Door Security Bar (2 Parts), Anti Lift Lock (2 Parts; Metal Plate & White Saddle Mount), Double-Side Threaded Screw, 4X End Caps (Black, Plastic), 5X Flathead Screws, User Guide, 12 Month , & Friendly Customer Support

SECURITYMAN

• LOUD + ATTENTION GRABBING: High pitched 91 dB sounds when the home alarm is triggered. Loud enough to alert your neighbors, wake you up, and deter would-be thieves
• MAXIMUM SECURITY + VERSATILITY: Stay safe at home and while you travel. Perfect alarm system for front door, bedroom, apartment, dorm, or hotel. Can also use in windows.
• EASY SET-UP: Hold the thin blades together and slide them into the crack between the door and doorframe, loop the cord around the door handle, and set alarm. It’s that simple, even your kids can do it.
• COMPACT + PORTABLE: Perfect hotel door alarm and theft deterrent for your next vacation. Small and weighs less than 2 ounces. Easily fits in your suitcase, briefcase, backpack, laptop bag, or purse.
• INCLUDES: Built in LED flashlight, and two button cell batteries. Great additional personal security feature when traveling, in an unfamiliar environment, or when it’s late at night.

Lewis N. Clark

• The original portable door lock: Addalock is a portable door lock that can be used on most doors that are hinged and swing inwards. Our home security door lock is designed to offer additional safety, security, and privacy in your space.
• Safety at home: The Addalock door lock provides additional safety and privacy while you’re home. This lock installs in seconds without tools and can be used for apartment security, as child safety locks and is great for a secure college dorm room.
• Safety on the go: Take it with you when you travel whether you are in a hotel, staying at an AirBNB or any other short term rental. Keep one in your travel bag and always stay safe with your travel lock while on vacation or on a business trip.
• Authentic Addalock: The Addalock Original Portable Door Lock has a metal body that is engraved with the add-A-lock logo and comes with a red addalock storage pouch. This is how you know you have the real and original Addalock portable door lock.
• Who we are: We are Rishon Enterprises Inc., the creators of The Original Addalock and the Burglabar. We have focused our time and efforts on promoting and bringing attention to safety, security and privacy for your everyday life, home or away.

Rishon Enterprises Inc.

• Door Locks to Keep Your Home & Family Safe – Our precision engineered door security latch are made from ultra-strong aircraft-grade aluminum. This high security door guard is built to withstand up to 800 lbs. of force – the average force of a kick from a large male is approximately 500lbs. Investing in a high-strength inside door lock latch can help offer you and your family peace of mind.
• Easy to Install Right Out of the Box – Our high-strength security door latch locks install in just 5 minutes. Simply fit the door latch lock to your door frame, mark the height and mounting holes and mount to your door jam with the supplied 3” hardened screws. Its thoughtful design makes the security door stopper easy to use and it’s a simple way to give you extra security and reassurance.
• Low-Profile Design Perfect for Renters – Its discreet, low-profile design makes this “barely-there” door reinforcement lock the ultimate guardian for door lock security. A no-hassle installation makes it ideal for both tenants and landlords, and offers peace of mind without damaging or altering most standard door frames. It’s also available in a variety of finishes to blend in and match existing hardware.
• Child Proof & Tamper Resistant – Our childproof door lock are tough enough to withstand 800 lb of force and easy to mount out of a little one's reach. The child door locks have a spring-loaded design to make it nearly impossible for little hands to open and it's completely tamper resistant against lock picking. This door security lock is perfect as a front door child lock.
• Home Security Door Lock vs. Door Chain - Any professional locksmith will tell you that a door bolt lock or door chain lock is not strong enough to add real door guard security to your home. Adding high-security door safety security locks for front door security, locks for door inside, side and garage doors and basement doors makes you feel more at ease and more secure in your home.

DWELL+GOOD

• 【Home Security & Toddler Proof】Swing bar door locks are security locking devices for swing-in doors, allow people inside the room to open the door few inches for identification or ventilation while providing privacy and security for guests and residents. Door latches also can be installed out of children’s reach so they can’t open the door by themselves, providing additional child-safe door security. NOTICE: Compatible with most wooden doors and molding when door is flush with door jamb!
• 【Durable Construction】Door latches are constructed from premium solid aluminium alloy with beautiful polishing and finish to complement your lovely home decor. Door locks are difficult to rust or oxidize and will serve longer life. Ultra-thick swing arm and solid lock base ensure strong and durable quality, and resist up to 600 lbs force. Home security door lock can be unlocked easily from the inside with simple swinging motion, while too strong to be forced open from the outside.
• 【Advanced Craft Features】CRANACH Home security door lock features steel ball positioning which is a unique locking design that holds locking arm in place so they will not swing around for extra security. The countersunk hole design makes the security guard lock noble and elegant. New color option-Chrome: B07TTHMTWC.
• 【Easy Installation】CRANACH door reinforcement lock has a long, swing bar, which folds over the closed door. Installation is quick and easy with the screws in package, the process is simple enough that almost any homeowner can do it easily in minutes.
• 【Worry-Free Purchase】Secure home by CRANACH, swing bar door locks defend your home safe, not only limit door opening for identification and prevent break-in, but also easy open from inside when meet urgent. CRANACH provide considerate service to make sure you could buy with confidence and would try our best to solve any problem until you are satisfied.

CRANACH

• SECURITY AND PRIVACY - This portable door lock provides you with extra security and privacy, greatly improving your security and preventing unauthorized entry, so the door can't be opened from the outside, not even with a key; which is a great helper for you when you are on business and trips, or live alone.
• EASY TO USE - Easy to install or remove, this door lock can be installed in seconds without any tools, even in emergency situations and in the dark. Just insert the metal piece into the slot of the door lock, close the door, and then put the red handle groove to the stud on the metal sheet, then no one can open the door from outside.
• HIGH-QUALITY MATERIAL - The door security device is made of strong stainless steel. Rugged ABS plastic cover to prevent damage to doors under pressure. Steel surfaces with electroplating and polishing technology ensure a smooth touch and minimize any injury to your skin. A strong door lock with high quality may guarantee prolonged service life.
• WIDELY USED - The security door stopper contains two holes of different sizes to ensure that all types of door locks are matched. Perfect for hotels, dormitories, apartments, short-term rentals, Airbnbs, bathrooms, bedrooms, or private rooms. It may also be applied to avoid pets going out, and also to prevent children from opening their doors to strangers.
• COMPACT DESIGN AND TAILORED CUSTOMER SERVICE - Size 4.3 x 1.26 x 0.4 inches with 0.78inch (2 cm) and 1.2inch (3 cm) holes, lightweight and small, you can put it in a pocket or handbag. If you have any questions, please do not hesitate to contact us by email immediately.

AceMining

• Heavy duty, dual-function door security bar prevents forced entry on hinged, patio, and sliding doors; Door stopper security bar is intended for indoor use
• Door security bar design is portable and compact making it easy to store and ideal for travel, providing enhanced security in hotels or on vacation
• Door security bar is adjustable from 27.5 in. (70 cm) to 42 in. (1 m) in length to fit most standard doors and sliding patio doors; Top door knob jam is easily removed for sliding door applications
• Made with heavy duty 20-gauge steel for strength and security; Pivoting ball joint ensures door security bar has full contact with floor for secure fit while padded foot provides a strong grip without scratching
• No tools required, simply adjust the bar length using the release button, prop under door knob and easily adjusted as needed

Master Lock

• SECONDARY SECURITY LOCKING DEVICE – This U 9847 Patio Sliding Door Loop Lock can be used on a patio sliding door as a secondary security lock for increased home safety.
• CHILD-SAFE SECURITY DEVICE - This door loop lock can also be installed out of reach of children so they cannot open the door by themselves, providing additional child-safe door security.
• EASY INSTALLATION  - Installation is quick and easy – additional security for your home or office doors are within reach! Installation fasteners are included.
• DURABLE CONSTRUCTION – This door loop lock has a hardened steel locking bar with diecast constructed mounting plate and keeper, with a chrome plated finish.
• PRODUCT INFO - This locking device features a 2-1/8” reach, which is designed to secure the door to the jamb. It is also available in 1-1/8”, 1-3/16”, 1-7/16”, and 2-1/4” reaches.

PRIME-LINE