Nowadays, entrance doors are sold in the form of a basic one (frame and door leaf) or complete set, which also includes platbands, hinges, handles, locks, a peephole and a chain. The first option is usually cheaper and allows the owner of a house or apartment to independently choose the necessary fittings and accessories. But choosing a lock for a door is quite difficult: you need to correctly evaluate its material, design features and location, as well as the weight, dimensions, design, security and burglary resistance of the lock itself. Certainly, professional advice Sales consultants can always give. But in order to understand some of the nuances when choosing a lock and understand technical parameters this complex product, you need to familiarize yourself with its features in advance.

Did you know?

The history of the castle can be seen as a centuries-old competition between inventors and burglars. For the first time, the simplest locks on doors appeared in China and Egypt. With their help, rulers protected food supplies, treasures and their lives. Locking devices were made by carpenters, and from strong wood. Metal locks have been known in Europe since Ancient Rome. The Celts made a special contribution to the lockmaking industry, making the first all-metal locking devices - both overhead and removable. And mass production of door locks began at the beginning of the 18th century.

The best of the best

The modern market offers hundreds of items various models locks, so it’s very difficult to navigate the variety of these products.

Sellers usually subdivide mechanical locks into “inexpensive, but quite good”, “expensive and very good” and “very expensive and super reliable”. By the former, they mean most products of Turkish, Chinese and domestic production. Castles in the next price category often include most Finnish, German, Italian and Israeli castles. And, finally, products from Austrian and English companies: they will cost the buyer no less than 10 thousand rubles. And if you add the cost of additional devices (armor plate, armor plate, magnetic protection, etc.), then the price can become even more impressive.

Location

Locks come in padlocks, mortise locks and overhead locks. With the help of the former, utility rooms, sheds and garages are closed. Mortise locks are protected by the door leaf in which they are attached. Invoices are installed with inside doors (wooden or metal). They are usually locked not only with a key, but also with a turntable or latch. In terms of burglary resistance, overhead and mortise locks pretty similar. They are suitable for installation on both wooden and metal doors. The choice between them is determined technical characteristics and buyer preferences.

The door-lock tandem has one feature: the design of the door leaf is capable of protecting the latter from certain types of burglary, but even the most powerful and ingenious lock is not able to “help” a flimsy door. Therefore, it is she who determines the appropriate type of lock. Although we still have a lot of wooden entrance doors, but reliable metal (most often economy class) has now become the norm. As a result, attackers primarily attack locks.

Top secret!

All locks are classified according to the design of the locking mechanisms. Now the most popular of them are cylinder, lever and combined.

Cylinder

Photo: Shutterstock.com / Gavran333

The main part of such locks is a replaceable secret mechanism called a cylinder, or cylinder. Inside it there are pins (pins), which, if they match the pattern of the key, allow you to rotate the moving part of the cylinder. Since these parts are quite miniature, when purchasing a lock it is worth asking what metal they are made of. For “budget” models they are made of brass, for more expensive ones they are made of steel, which increases both the service life of the product and the resistance of the cylinder to drilling. To make it difficult to open locks, some manufacturers reject balls and rods made of hard alloys into the mechanism body.

Special protection

Experienced locksmiths recommend installing cylinder locks complete with special protection - an armor plate. It is in this version that the locks become reliable and practically unpickable.

Level

Photo: Shutterstock.com/gcpics

From an expert's point of view

A lever lock is considered more resistant to force than a cylinder lock. And if you reinforce the structure with an armor plate, then such a device is an excellent choice.

Such locks are otherwise called safe locks. Their secrecy is ensured metal plates with specially shaped slots called levers. When you turn the “native” key, they occupy a certain position that allows the bolt (crossbar) to move. Otherwise, a special protrusion on its shank will rest against the edge of the slot and block movement.

When choosing a locking device model, pay attention to the keyhole and key. A high-quality key has all edges of the bits well polished, and the corners are straight. The impressive size of the keyhole can allow a thief to easily manipulate tools, so it should be narrow. The disadvantages of a lever lock are the large size of the key and the need to lock the door with it both from the outside when leaving the house and from the inside when returning, which is not always convenient.

Combined

Photo: Shutterstock.com/vetkit

In these locks, two mechanisms are enclosed in one body - a cylinder and a lever. This increases the reliability of the locking device: after all, the methods for opening such mechanisms differ greatly from each other, and thieves often specialize in only one type of lock. Combined models are usually expensive, and the work required to install them is quite painstaking.

Choosing metal locks is not an easy task.

To reliably protect your home from intruders, you need to choose a lock wisely. The fact is that the level of reliability different models significantly different. Therefore, we invite you to find out which mechanisms are the most reliable and how to choose the optimal model.

First of all, we note that ideal structures do not exist, i.e. You can open any one. But, to open some models, experienced security guards need less than a minute of time, while on others they have to work for at least half an hour or even more, which significantly reduces the likelihood of hacking (see Breaking a door and countering it).

You can open any element

To make the right and informed choice in favor of the most reliable model, you need to find out what types of door locks.

So, all existing mechanisms can be classified according to two criteria:

1. Installation method;
2. Type of secretion (locking mechanism).

Installation method

By location on door leaf mechanisms are divided into the following types:

Illustration	Description
	Mounted - usually used on outbuildings such as sheds, utility rooms, garages, etc.
	Mortise - as you might guess, these products cut into the door leaf. Accordingly, there must be a special pocket in the door to install them.
	Overlays are installed on the door from the inside and do not require insertion. As a rule, such locks can be closed from the inside with a latch or a rotary turntable.

Pay attention! In terms of reliability, there is no difference between overhead and mortise models. Therefore, the choice depends on the characteristics of the door and your individual preferences.

Key holders with one-sided notching are not reliable, as evidenced by the reliability rating

Secret type

There are quite a lot various options secrets.

The most common ones are the following:

• Cylinder- these models have a replaceable locking mechanism called a cylinder. Thanks to this, if the mechanism fails or the keys are lost, there is no need to change the entire lock.

It is better to put cylinders under perforated keys - they are the most reliable

The reliability of the mechanism depends on the type of cylinder, i.e. from the very secret. The most reliable are holders for perforated keys (laser sharpened). After them in terms of reliability come mechanisms under cross keys and elements with a two-way secret.

An ordinary lock with a one-sided notch, as a rule, is opened by experienced robbers within two to three minutes;

• Level- these models are quite reliable. In terms of complexity of hacking, they are often superior to their cylinder counterparts. However, it should be borne in mind that reliability largely depends on the quality of the product, and not just the principle of its design. If, for example, the hole is wide, then it is quite easy for an attacker to open such a lock.

Keyhole

As a rule, lever models are designed for insertion into the door leaf. One of the disadvantages is that the key is usually larger than for a cylinder lock, so it is inconvenient to carry in your pocket;

• Disc (crescent)- products with such a secret are resistant to low temperatures and others negative impacts. Therefore, they are often installed on gates and other external doors.

As for security against hacking, according to statistics they are lately became the most vulnerable. Therefore, it makes sense to install them on the front door only as an addition to the main lock - a cylinder or, for example, a lever lock.

The biometric mechanism is the most reliable among iron products

Important: biometric locks that can recognize fingerprints are currently considered the most reliable. They are also the most convenient, since you don’t need to carry keys with you. However, the cost of such products starts from 500 USD, so not everyone can afford them.

Nuances of choice

We looked at the most common door locks - now you also know what secrets there are. But what kind of lock is better to buy? First of all, keep in mind that the reliability of a lock depends not only on the principle of its design, but also on the quality of its workmanship.

As a rule, sellers divide all existing locks into the following categories:

• “A budget option for which there is no guarantee” - usually these are low-quality Chinese products, many of their parts are made of silumin and other cheap alloys. It is, of course, better to refuse to purchase them;
• “Affordable and quite good” - such locks include products of domestic, Turkish and Chinese production. They can be conditionally classified as middle class; accordingly, these products are most popular;

• “Expensive and reliable” - this class includes products from Finnish, German, Israeli and Italian manufacturers. They are made of durable materials, making them difficult to open;

English manufacturers are considered reliable

• “Expensive and most reliable” - these models are produced by English and Austrian companies, which have been famous for the quality of their locks for many years. The price of such products starts from 10,000-12,000 rubles. And if you add to them additional elements, such as armor plates, magnetic protection, etc., the cost will increase significantly.

Pay attention! It is advisable to install cylinder locks with additional protection- armor plate, which prevents the possibility of drilling. In this case, the locking unit becomes more reliable.

Armor plate increases reliability

It follows that quality, as always, costs money. But most of our fellow citizens are interested in how to choose door lock from the inexpensive segment, which is the most challenging task. As we found out, in most cases you can trust domestic and Turkish manufacturers.

But, of course, it is necessary to pay attention to the castle itself, namely, the following points:

• Build quality - take the product with your own hands and carefully inspect it. The lock should not feel flimsy. It should be quite heavy and well assembled. Moving mechanisms should not have large backlashes;

• The quality of the locking mechanism - the key should enter the cylinder quite softly, but at the same time it should not dangle or fall out of it. There should be no “sticking” or “biting” during turning;

• For the material of the cylinder, it is desirable that the locking mechanism be steel, since brass is easily drilled. However, sometimes manufacturers specially insert carbide rods, which complicates the task for attackers.

No mechanism can save a low-quality door from breaking in.

Here, in fact, are all the basic instructions for choosing a lock. And, finally, do not forget that the locks must match the quality of the door.

For example, there is no point in installing a premium-class lock on a cheap Chinese design, since any even more or less experienced burglar will not even try to open it, but will simply break it.

To reliably protect the door from burglary, install two different types of mechanisms

Tip: it is advisable to install a couple of locks on the door with different locking devices. This will make her more unapproachable.

Conclusion

Now you know which door lock is the most reliable, and how to choose the right lock in general. Finally, watch another video in this article.

The most reliable locks for metal doors Premium class presented on domestic market, first of all, the world's leading companies of lock and hardware products with high degree secrecy of mechanisms, such as: ATRA, ABUS, CISA, MOTTURA, MUL-T-LOCK, KABA, EVVA, SECUREMME, etc.
This category requires the use of extremely reliable locks.
Reliable door locks These manufacturers cannot be opened with a master key or key selection; the number of secret selection combinations reaches several million.
The cylinders (cylinders) are made of acid-wear-resistant metal and are equipped with pobedit rods and steel balls that protect the lock mechanism from drilling.
Pricing policy - from 7,000 rubles to... obscenity. Any whim for your money!

THE MOST RELIABLE DOOR LOCKS: PREMIUM CLASS LOCKS

ATRA - DIERRE (ATRA) Italy

HEAVY series with one key high-secrecy mechanism. Has 3 locking points. The replacement nucleo block is sealed in a separate package. Supplied complete with trims (brass). The ATRA lever lock with a replaceable security block controls the thrusters and bolts; the mechanism provides more than 1 million secrets.

DOUBLE CYLINDRO - dependent lock with a replaceable security element (nucleo). Supplied complete with linings (brass), two plates that prevent drilling (external and internal), screws for fastening the cylinder. ATRA operating principle - the upper lock controls the spacers, bolts and latch, the lower lock has one bolt and blocks the upper lock.

ABLOY Oy (ABLOY) Finland

Castle ABLOY
The mortise lever has the security of more than 1 million different combinations. The lock body is made of hardened steel and is additionally reinforced with armor plates, which are secured through the lock body with six steel screws. The lock is equipped with a hook-shaped bolt that clings to the counterpart of the door, which prevents the door from being opened by force (by pressing).

Castle ABLOY
With straight bolt, hardened steel oblique bolt and drill protection. The straight crossbar of the structure is locked and unlocked using a key or a rotary turntable. The oblique bolt can be unlocked either with a key or with a handle. Handles are included additionally.

ABUS
Handles with armor protection can be installed on almost all lock bodies previously installed in metal doors. The cylinder (cylinder) is protected by an armored cup with plastic spacers inside to protect the cylinder (cylinder) from being knocked out or broken. The free-rotating steel disc on the handle prevents drilling. This configuration includes a cylinder (cylinder) to choose from.

CISA (CHIZA) Italy

Single system CISA lock
With one key mechanism of increased secrecy. Full locking in 4 turns. Level mechanism, lock models are available with the New Cambio Facile recoding function (replacing the lock code). Depending on the configuration -3 or 5 safe keys.

With mechanical conversion system. Installed in metal doors as the main lock.
Includes: lock body, conversion kit, installation key.
Not included: cylinder (cylinder), end strip, overlays.

Cylinder with system (2 in 1). Five locking bolts plus a latch. Separate handles MSM Lock or Armadillo are suitable for this lock; installation of a CISA armor plate is recommended. The lock block has ears for mounting vertical rods. Cylinders (larvae) to choose from - any European manufacturer.

MOTTURA Italy

MOTTURA locks 52 series
These are powerful mortise locks designed for metal doors. MOTTURA 52 series can act as a top or bottom handle lock. Some models are equipped with the Nucleo Replay system (a replaceable, transcodable lever mechanism). Comes with 5 keys. Additional equipment: handles, protective manganese plate.

MOTTURA locks 54 series
Powerful, mortise latch locks with three locking points. Double-system lock with lever mechanisms. Comes with two sets, each containing 5 keys. The action of the master black key blocks the red key. Additional equipment: handles, protective manganese plate.

Locks MOTTURA 62 series Serrablocca
These are pump-action lever locks of high quality, burglary-resistant and especially powerful locks. The lock body is reinforced with an armor plate in the area of ​​the keyhole. From the inside, the door with the Mottura 62 series lock can be opened or closed using a handle.

MOTTURA locks 72 series
A mortise lever lock without a latch. Supplied with 5 keys, escutcheons and a strike plate. The Mottura 72 series lock can additionally be protected with a manganese plate.

Locks MOTTURA 85 series
Mortise lock with a latch, has three locking points. The lock can be equipped with handles, a manganese plate against drilling, a Euro cylinder (cylinder) of your choice, and an armor plate to protect the cylinder.

NUCLEO (NUCLEO)MOTTURA
If a key is lost, the Nucleo replacement block allows you to change only the security element of the lock, and not the entire lock. Security guarantee - the customer himself prints out the keys to the new nucleo lock (replaceable security unit).

MUL-T-LOCK Israel

Locks MUL-T-Lock M602.
The main lock is under the handle with a four-channel locking system. The lock has two cylinder protectors and a reverse latch. Easily locks with one turn of the key. Installation is preferable with a set of protective fittings.

MUL-T-Lock OMEGA+ locks.
OMEGA+ rotary locks are extremely resistant to attempts to break into or pick a master key. The number of secret combinations exceeds 10 million. When you turn the key in the door, the rotor sets in motion gears that control the bolts and vertical rods, which move independently of each other.

MUL-T-Lock MATRIX locks.
Recodeable patented rack and pinion locks. The locks have the following advantages: absolutely silent, burglary-resistant, and easily recoded (by changing the SIM card). Recoding will allow the new keychain to be used an infinite number of times.

SECUREMME Italy

SECUREMME 25 series locks
Double-system lever-cylinder lock. The upper system is a lever mechanism with a replaceable secret mechanism (nucleo), the lower system is a cylinder mechanism with the ability to install any European standard cylinder (cylinder) into it. It is advisable to install an armor plate (optional). When closing the lower mechanism, the key hole for the upper mechanism closes.

NUCLEO (NUCLEO)SECUREMME
The Nucleo replacement block allows you to change only the security element of the lock, and not the entire lock, if you lose the key. Security guarantee - the customer himself prints out the keys to the new nucleo lock (replaceable security unit).

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When choosing new door many factors are taken into account: the thickness of the blade, operating conditions, the choice of a comfortable and beautiful handle, etc. But the most important factor is the locking device. The final choice of the main mechanism depends on what security class the device has, how well it resists hacking and how easy it is to use.

Selection criteria

Choosing a reliable lock for your front door is a labor-intensive and time-consuming task. Making a choice that will combine durability, safety and ease of use of the device is not easy. There are many models of Russian and foreign production on the market. You cannot make the mistake of buying a simple internal lock instead of a mechanism for metal doors. This way you can make a mistake with safety and get a quick breakdown of the mechanism.

Before purchasing a device, determine the purpose of the door. The front door must reliably protect the house from unwanted persons. To purchase such a mechanism, you need to consider the device’s security class for hacking.

Door lock

Safety class

There are four security classes of locks for metal doors:

1. The first class is the simplest internal locks. Devices of this kind are easy to hack and are not characterized by the reliability of the mechanism. A good security technician can open such a mechanism in 5 minutes.
2. The second class includes devices that will take from 5 to 15 minutes to open. This class of devices is installed on internal doors. It also happens that they are used as the main source of security for the apartment.
3. The third class includes devices that can be stolen by a thief in no earlier than 15 minutes. The devices have a decent safety class and are widely used on metal entrance doors.
4. The last one, the most reliable class security against burglary – fourth. It would take more than half an hour to hack such a mechanism. Characterized by high reliability. This class of locks is designed to prevent access of unwanted persons to premises of high importance.

The price of the product depends on the safety class. The high protective properties of the device are achieved by using expensive, durable metals and complex mechanisms. Thus, a 4th class lock costs between 25 and 30 USD. A 2nd class lock, which costs 5 USD, may have the same appearance as a 4th class lock. Manufacturers often try to gain the trust of buyers appearance products that look like high-end locks, but use less durable material.

Secrecy

It is easier to determine the safety class of a mechanism, because it determines the material of the product and the complexity of the device. It is difficult for a non-expert to understand the mechanisms. It is even more difficult to understand the secrecy of the castle. Sellers talk about this or that lock as very secret. Representing device instances with up to a billion combinations. But the secrecy of a lock is not determined by the number of combinations alone. Secrecy – range of device properties:

• number of combinations;
• protection from mechanical influences;
• protection against master keys;
• wear resistance;
• probability of finding a matching key.

System of secret mechanisms

According to these parameters, locks are divided into 3 security classes, starting with low and ending with high.

1. Low privacy. The number of combinations varies from 10 to 10,000. They do not have protection against mechanical influences and protection against master keys. The key consists of simple pins and a profile, which makes it easy to select the appropriate key. The material used is not wear resistant.
2. Average privacy. Combination options vary from 5000 to 5000000. Such locks will not have protection from master keys and mechanical influences, but will have a good pin structure. Consists of durable steel in combination with low strength parts.
3. High secrecy is characterized by combinations up to a billion. It has all types of protection, both from mechanical influences and from master keys. The pins are arranged in such a complex way that it is almost impossible to find the key. The devices are made of high-strength and wear-resistant material.

Types of castles

Locks can be divided according to the type of installation. There are three main types:

1. Mounted. Such locks are not considered reliable. Even if there are no master keys or keys, they can be broken by force. This is how they lock barns, etc. It is not worth installing such devices on a metal door.
2. Invoices. Used to lock entrance doors. More often the second ones are wooden. The advantage is that you don’t have to damage the door leaf. But such locks are also unreliable; use them as the main defense mechanism and it is not advisable to lock your house on them.
3. Mortise. A popular type of lock that cuts into the door leaf. They have high reliability. They are installed on metal doors and the apartment is locked.

Of all the options listed above, only mortise ones are suitable for installation on a metal entrance door. The first two types of devices will be used to lock rooms of lesser importance.

Mortise lock

Types of secret mechanisms

The protective properties of the lock depend on the type of mechanism. There are many varieties.

Crossbar

This type of lock is designed simple mechanism, has low reliability. To lock and unlock the lock, you do not need to turn the key, but only move the bolts and insert the key into the keyhole. Burglars can take advantage of this by using a simple burglary key in the form of a wire.

Deadbolt lock

Suvaldny

This type of lock is more reliable than the first representative. Its design has crossbars that are locked by a lever mechanism. The key has special pins that snap into place and unlock the lever mechanism. Trying to open the lock with a key that is not yours will not work.

Cylinder

The secret mechanism of the disc lock does not use pins, but a system of movable cylinders that are moved by cuts in the key. The cuts have different heights and angle. This makes it difficult to find the key. In addition, such a key must be turned, and this will not allow a thief to open the lock by drilling through the cylinders.

Cross-shaped

A cross-shaped lock has a key in the shape of a cross. Pins are installed along the edges of the key, which is what is achieved large number combinations. But this lock does not have protection against mechanical influences. It can be opened using a regular Phillips screwdriver. Therefore, it is not worth installing it on a metal entrance door.

Electromagnetic

Electromagnetic locks are widely used and are highly reliable. They are opened using a numeric code or a reader key. When electricity is supplied to the coil, an electromagnetic field is generated, which adheres to a magnetic element mounted on the canvas. The resulting force can hold the door with a force of up to 1000 kg. When there is a power outage, the door opens.

Electromechanical

Electromechanical lock

This type of device allows you to open the door not only with a key reader and a numeric code, but also mechanically. It combines the advantages of conventional and electromagnetic locks, gaining popularity. Home negative trait is the high price of the product.

Rating of the most popular castles

There are several manufacturers on the market whose products may be of primary interest.

• The Russian company Elbor is the largest manufacturer of door locks in Russia. Issues high quality products with the appropriate security class and degree of secrecy. In production they use durable metal. The range includes mortise and overhead types from 2 to 4 reliability classes;
• another Russian representative of Pro-sam presents mortise and padlocks. The range consists of more than 50 models. Devices made of high-strength material are designed for wooden and metal doors;
• Kale is a Turkish company that came out on top in sales in Russian market. Has high quality workmanship. Specializes in cylinder locks, consisting of three-bolt and three-step systems;
• Guardian is manufactured in Russia. Has about 40 models in its arsenal various types. Devices are made from quality material with a good degree of secrecy.

There are several companies from which you can choose a high-quality device. When there is a lot of choice and your eyes widen.

The more, the more reliable

Whatever lock you choose, stick to simple recommendations. The device manufacturer must have the appropriate certificate, including reliability, degree of secrecy and material of manufacture. Do not hang large and weighty devices on doors with thin leaves. Better yet, use two locks.

After watching a video about the design of mechanisms and learning how to choose a reliable lock for your front door, you can safely go to the store and choose.

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Specialists from the lock picking company “New Castle” //newzamok.ru tell you about which lock models you should give preference to, how to increase the resistance of doors to burglary and how to secure your apartment from unauthorized access by intruders.

What kind of locks are installed on entrance doors?

Most of the locks on entrance doors are lever, cylinder or combined mortise-type mechanisms.

In locks of the first type, the work is performed by so-called levers, spring-loaded plates that respond only to a specific key. The more there are, the higher the level of secrecy of the castle. Lever models are characterized by increased protection against burglary, but they are more difficult to change, since malfunctions require replacement of the entire mechanism.

Cylinder locks are locks with a “cylinder” that turns only when a key with a specific combination of grooves is inserted into the hole. They are easier to change, but the level of burglary protection for standard cylinder models is lower.

Combination locks are complex mechanisms, which use both systems - both lever and cylindrical.

Which manufacturers deserve attention first?

As in many other industries, in the field of locking mechanisms there are manufacturers who are considered unspoken leaders. Their products are not cheap locks highest quality, which are not so easy to open or hack.

First of all, the specialists of the New Castle company noted the Cisa brand, the largest European manufacturer from Italy.

Among the impressive Cisa model range for apartment doors the best option, according to the company, should become a castle Cisa 57.966, combined mechanism with the ability to recode New Cambio Facile. This model is equipped with both a lever system and a cylinder, independent of each other. The number of possible combinations of levers is more than 70 thousand. Complete with a good cylinder and armor plate it provides maximum protection against any break-ins. The cost of the castle is about 8,000 rubles.

A lock from another Italian manufacturer with 50 years of experience was noted in the same price category Securemme 2543– a combined model with recoding and 4 crossbars (the crossbar extension is 40 millimeters), the ability to connect vertical rods and a latch.

The next castle on the list is CisaBasic (57.665). Unlike the combined model 57.966, this lock is only a lever lock, but it also allows for recoding to increase secrecy in case of loss, replacement, or theft of keys - New Cambio. It is equipped with protection against driving in crossbars and other common types of opening. Fourth class of burglary resistance. The cost of Cisa Basic is about 7,000 rubles.

The well-known European brand Mottura is another time-tested manufacturer from the Apennine Peninsula. For entrance doors, experts recommend choosing lever-type locks Mottura 52783 or Mottura 52771, as well as a two-system model Mottura 54797.

Model 52783 is equipped with the ANTIDECO II protection system, meets the requirements of class 7 security, and is protected from drilling. Mottura 52771 with three or four bolts is equipped with keys with variable coding. The Easy Go system allows you to quickly replace the lock if necessary. The combined model 54797 is distinguished by a huge number of possible unlocking combinations - more than 117,000. The estimated cost of these Mottura models on the domestic market is 6000-7000 rubles.

The best cylinder locks are from Italy and Austria. In the first place is a mechanism with a high degree of protection against burglary CisaRS3(about 11,000 rubles) and Austrian EVVA 3KS(about 10,000 rubles). With over 8 billion possible combinations, the RS3 is tear-proof, bump-proof, drill-proof, and wax-proof, making it one of the best residential door cylinders with a patented key. EVVA 3KS – the “three curves” system cannot be opened with master keys or impact equipment, and protects the door from almost any type of opening. Thanks to the design features, these locks are better protected from dirt and frost.

Among Russian manufacturers preference should be given to Guardian locks - a mortise lever model with a vertical drive and a latch Guardian 21.12(can be equipped with an end plate and armor plate) and a combination lock with two security mechanisms and 5 bolts Guardian 25.12. The cost of these locks is 2000-2500 rubles.

The New Castle company, which specializes in opening, replacing, and installing locks of any type, recommends installing several locking mechanisms on the door at once. different types. For example, both level and cylinder locks, or combination type locks. According to the experts, the Cisa 57.966 + Cisa RS3 cylinder kit has the best protective properties.

Experts advise additionally strengthening entrance doors to apartments and locking systems with armor plates and armor plates. This will further increase resistance to hacking.

It was noted that the key requirement for increased security is not only the installation of an expensive, reliable, burglar-resistant lock, but also the professional installation of a high-quality metal door. Even the best lock on a cheap door leaf will not cope with the responsibilities assigned to it.

Installation of locks from the company "New Castle"

Representatives of the company noted that they work with any types of locking mechanisms, including the best castles Cisa and Mottura. The locksmiths come to the client with a full range of locks for all types of doors.

Experts will tell you which lock is best to choose in a given situation, taking into account security requirements and budget.

On installed locks The company provides an official guarantee: for Italian locks for a period of 3 years, for other models - for a period of 1 year. If a warranty case arises during operation, locks are replaced at //newzamok.ru/ustanovka-i-zamena-zamkov-v-moskve free of charge.