The primary duty of whether an ordinary wooden rectangle with a plate and a lock inside a house or a secure anti-theft door protecting a governmental building from outside, is to protect people. Furthermore, they should use some assets inside the building and property against heat, cold, all kinds of external disturbing elements like wind, flood, animals, and of course, against burglars who might use various kinds of modern tools and machines to penetrate a building. Moreover, even in absence of these threatening factors, a door mustn’t be open for pedestrians to walk in whenever they preferred. A credible door has to stand still against both deliberate and unexpected trespassers. Here comes the prominent role of door locks. Produced based on special kinds of plates or sometimes cylinders, door locks are the second most essential feature of a door after its body. 
Hence without door locks, doors would be nothing but a useless rectangular pieces of wood or metal blocking people’s way for no reason. Moreover, every door must be enhanced with at least one door lock. For villa houses in the middle of a crowded city where only one family lives, not more than one lock for the main front door is essential to use; but the heavy enormous door of a depository would require more than one lock.
How to Secure the Door from Outside?
The forward topic discusses a significant circumstance in which the owner of the property intends to secure the door from outside. This often happens when the owner (user) intends to leave the property for a long period. At the time, he has to make sure that no external factors are going to find the opportunity to trespass and no burglars would be able to breach inside. 
Formerly, one had to lock the door of the property up from all aspects and other property owners who were even more sensitive and cautious, would establish a security camera system and request the neighbors to keep an eye on their property. Some even went further to stuff a few square meters behind the door with heavy furniture to prevent trespassers from entering the property. But nowadays, due to the invention of anti-theft security doors, you get the key inside the cylinder, screw it, hinges are placed inside their holes and the door is prepared to repel all kinds of threats off your property. The door which is strong enough not to be lockpicked would make the burglar utilize noisy tools and machines and it would also bear the pressure to the moment one of the neighbors calls 911.
How to Secure the Front Door from Inside?
We, as owners and buyers of doors, need to secure the front door of some houses with one or more children, like kindergartens, from inside; but how? Nowadays, in most countries, children’s both parents go to work, sometimes even as a full-time jobs. In this case, a babysitter would be hired to take care of the child. Babysitters may be kind and angel-like, but they would never be as passionate as parents themselves for the child. 
Though, when a babysitter is bored after playing with the child and telling several stories in a few hours, she would probably go to the bedroom to take a nap or entertain herself with a magazine. Here comes concern and danger for the child who is awake, energetic, and/or willing to experience the world outside. A door, whether an ordinary wooden one or an anti-theft security door has to be equipped with a decent security system that doesn’t let the child open it easily from inside. A security door, in addition to its up to 21 hinges controlled through the main cylinder lock, must have a reinforcement lock on its upper one-third, where even the naughtiest child cannot reach.
Door Reinforcement Lock
A reinforcement lock, as we can suppose it by its name, is one of the useful features of the door utilized for both inside and outside protection. When a female family member is home alone, she would seal the reinforcement lock up; as we have witnessed in several Hollywood homicidal movies, that’s for the time when someone unfamiliar knocks on the door and the poor woman goes to open it; The invader tries to kick the door opened, but he fails because the reinforcement lock with a chain attached to it, does its job perfectly and doesn’t let the door get opened for more than a certain amount. 
This kind of lock doesn’t also let the naughty children of the family find their way out of the house and make trouble and by the way, doesn’t let external factors like snoop dogs, raccoons, and skunks get themselves in. Almost every anti-theft security door manufacturer produces this kind of lock of stainless steel, hence, even a tall child or a family member with a mental disorder cannot scratch it with a knife or screwdriver to get over it. The most famous and common reinforcement locks are bolt-like ones.
How to Secure Front Door with Glass?
Whether for sake of better visibility or to provide more beauty, some may order front doors with glass parts. The question is: how should one secure such a door? Front doors with glass are commonly ordered and used among both people living in apartments and villa houses. They may consist of steel or wooden majority with a glass window in between, or in some cases, we have doors formed of 80% glass and a steel or wooden frame. The glass front doors are also ordered by banks and governmental buildings. 
As you can anticipate easily, the glass security front doors used for crucial governmental buildings have to be bulletproof to protect against vandalism, potential antigovernmental protestors, and terrorist acts. The story is the same for the banks which have always been a favorite target for robbers and mafia groups. But in civilian buildings, a weak glass can be easily broken by a burglar and breached into, while nobody would pay for a thick bulletproof glass for a simple civilian building either. Though, a new type of protected tempered glass made of polycarbonate had to be designed to fill the mentioned gap. Our company is ready to give you complete consultation about all kinds of doors and also provide you with high-quality doors, no matter where you are.