In our dedicated article, we will tell you more about the different types of locks. Multi-point locks are more secure than their single-point counterparts, multi-point locks are preferred by people looking to protect themselves against break-ins. This choice is all the more important since the majority of burglars go through the front door. Three-or five-point locks, mortise, cased or surface-mounted locks… These are the elements to take into account when buying the right multi-point lock.
Three, five, seven, nine… How many closing points?
The principle of a single point lock is very simple. When you close your front door or one of its patio doors, a bolt located on the edge of the door engages a keeper fixed in the frame, which locks the entrance. However, since the closure is provided by a single point located at the height of the lock, a burglar may seek to break it, for example by pressing with a suitable tool on the bottom or the top of the door.
The multipoint lock is more complex, but it responds to this problem. This time, the lock activates a rod, which in turn drives several locking bolts, each engaging in keeps located at different heights.
In this way, the door of the house has several anchor points. It offers more resistance to burglars, who must break one or more of these points to enter.
Five-point or three-point lock? A question of door size
Sold as a kit, most multipoint locks have 3 or 5 points. There are also locks with 7 closing points, and even 9 points. In this case, the additional bolts are located at the top and bottom of the door. But these models are rarer and often reserved for professional or industrial use.
While five-point closures logically offer more strength, they are also more expensive and more difficult to install. It may even be recommended to leave the operation to a professional.
For their part, three-point closures can be installed by individuals. Our article on changing a 3-point lock will tell you more. However, these models may not offer sufficient strength if the door is of a large size. Thus, for a door with a height greater than 2.10 meters, a 5-point lock will be preferred.
Multi-point lock: what price?
On average, the price of a 3-point lock is between 100 and 500 euros. This price can then climb to 900 euros for the most expensive 5-point devices.
Mortise lock or surface lock: installation methods
There are two main methods of installing or replacing a lock: overlay installation and recessed installation (or mortise or mortise). These two methods must be taken into account when choosing a door lock, as the difficulty of fitting and the end result will be significantly different.
What you need to know about recessed installation
The recessed lock consists of integrating the lock into the frame of the door. Once installation is complete, the lock will therefore be practically invisible. It also offers a greater level of security against an intrusion since all of its linkage is placed inside the door.
On the other hand, fitting a recessed lock is more difficult. It will even be impossible in some cases. Indeed, materials such as PVC or aluminum do not lend themselves well to this type of installation in renovation. The modifications to be made to the door are very important, and so is the risk of faulty workmanship. This is why we will favor the intervention of a professional locksmith odessa for a mortise lock.
What you need to know about wall mounting
The surface installation is much simpler since it does not modify the door. It can be carried out by individuals with some notions of DIY. It is partly for this reason that this type of lock is the most common.
This time, the lock linkage is directly attached to the door, without integration. It is therefore apparent that this can pose a problem from an aesthetic point of view. That said, overlay locks are also a bit cheaper than their recessed counterparts.
And the fair pose?
The streamlined lock is slightly different from the surface installation. Once again, the lock is attached to the door, but this time it is covered with a cover concealing the linkage.
Although the lock remains located on the outside of the door frame, ducted locks are known to be somewhat stronger than overlay models.
Lock replacement: Will I have to replace my door handles?
Replacing the handle is not always necessary when replacing a door lock or patio door. You may need to install a square reducer, the latter adapting the handle to the new lock.
However, this replacement depends only on the handles already present and the new lock. Each situation must therefore be analyzed on a case-by-case basis.
A guarantee of quality: ALOA certification.
The number of anchor points of a lock gives an idea of its resistance and its price. However, a lock with many locking points cannot be considered tamper-proof.
To counter a burglary more effectively, we can refer to the ALOA standard (for “Insurance Protection Prevention”). Since 19, this certification, managed by the National Center for Prevention and Protection (CNPP), has provided information to the public on the resistance of various equipment to intrusion.
CNPP is thus involved in the design of locks of all kinds, but also of armored cabinets and doors, electronic security equipment, ATMs, etc.
Thus, an ALOA-certified locksmith Tampa is rated as follows:
- ALOA * certification means that it will take at least 5 minutes for an intruder to overcome the lock.
- If the lock is ALOA ** certified, it will take a thief at least 10 minutes to break it.
- With an ALOA *** certification, it will take at least 15 minutes for a burglar to break the lock. The latter mainly concerns armored doors and other safes.
To establish a level of security, the CNPP studies the design of the cylinder. This is based on the number of pins it includes: A high-security lock will include at least six pins. It is also based on presence.
- protection against drilling, which adds a rotating part to the lock. This prevents a drill bit from reaching the pins;
- protection against breakage.
- Protection against picking
These are not the only criteria taken into account by the CNPP. A door cylinder can offer additional guarantees. Anti-copying, anti-fusion, anti-tearing…
A final selection criterion: the key
To make your choice, you must finally be interested in the type of key that will allow the locking. This depends on the lock cylinder and can offer additional protection against burglary, but also additional services.
Thus, an entrance door lock can be double entry, disengage able, button, half-cylinder… As for the number of locking points, these types of keys have their own advantages.
This is what you need to know when choosing a multi-point lock. Do not hesitate to seek the services of professionals if you still face burglary or a failed installation. Many locksmiths can provide troubleshooting during the day, or even within an hour. You can also count on All in One Locksmith to thwart fake locksmith scams and support you in all your projects.
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