Last updated: August 19, 2021

Our method

15Products analysed

25Hours spent

7Evaluated articles

72User reviews

This time we want to introduce you to a product that we use every day, which provides security and protection to our homes. We are talking about locks and here we want to show you the best ones you can find on the market.

When it comes to who has access to your home, it is necessary to take every precaution in terms of security. A lock will give you more security and confidence during your absence. The question is, which of all the models and brands is the best?


  • A lock is a heavy-duty metal security mechanism, primarily for doors, which grants or denies access by means of a code or key. It provides greater security and protection for the goods being protected.
  • There are many models of locks, however, they can be classified into two main groups: mechanical locks - affordable and manually operated - and digital locks - more expensive and electrically operated.
  • The main factors to consider before choosing a lock include: Security features, Uncockability, Certification, Durability and Masterkeyability.

The Best Lock: Our Picks

Buying Guide

Buying a lock is an important process to ensure the security of your home. Choosing only for the price or aesthetic appearance, could lead you to put at risk the goods you are looking to protect, that is why you should consider certain factors to make the best choice of purchase.

Incorporate extra security with a lock to protect your goods without worrying. (Photo: Andrei Aleksanov/

What is a lock and what are its advantages?

A lock is a security mechanism for doors and drawers, which allows you to give or deny access to your belongings by means of a key or code. They are generally made of metal to provide high resistance to forced intervention.

They are very useful when adding extra security to exterior doors of homes, offices or others, providing confidence and peace of mind when you are not present in the protected place.

Due to its robust and durable design, choosing a lock requires the consideration of various elements, offering advantages and disadvantages whose choice is conditioned by the type of lock and the material in which it will be installed.

  • Varied range
  • Increased security
  • Durable and robust
  • Some may require electricity
  • Susceptible to physical attack

Mechanical or digital lock - what should you look out for?

Today, thanks to advances in technology, there are a variety of locks. In general they can be divided into two categories: Mechanical Locks and Digital Locks, each of these categories have specific characteristics.

It is important to consider which of these best suits your tastes and needs so that you can make the right purchase decision to provide protection and security for your property.

Mechanical Lock. This type of lock is the most common nowadays, in order to open or close this lock, you only need a physical key which you can duplicate so that more people have access to it.

One of its main advantages is that it does not depend on electrical power to operate, however, requiring a key for its operation can cause delays when opening or closing in case of emergencies.

Digital lock. These locks have an electronic door locking system, allowing the programming of entrances, exits or even time restrictions by means of codes on the numeric keypad or biometrics such as fingerprints.

Although they have a higher cost than mechanical locks, for many, the additional cost is justified by generating greater confidence as it provides alerts or is blocked in the event of failed or forced attempts. It is important to consider that their operation is dependent on a power supply.

Mechanical Lock Digital Lock
Access Physical Key Code or Fingerprint
Operation Manual Electric
Anti-Theft Security Mechanical Resistance Automatic Locking
Programmable No Yes

Buying criteria: factors that allow you to compare and rank lock models

When choosing a lock, it is important to take into account features and functionalities that suit your needs and not to choose solely on price. Below, we want to show you what are the main factors to consider in order to make a good choice:

Security features

Security is one of the main factors, it is necessary to have the right lock for the type of door you want to incorporate. Choosing one that provides a greater number of protection elements will provide greater security.

Among the protection functions are: the number of metal cylinders in mechanical and digital locks -which provide greater resistance to impacts and forced attacks-, and the automatic lock lock locking in the case of digital models.

In general, we recommend acquiring one with a greater number of protective features for locks located on exterior doors such as main entrances and gates. While more basic locks are recommended for interior doors.

Protect your belongings and your loved ones with a quality lock
(Photo: Ivan Banchev/


Uncopiability is a key factor in providing limited access to third parties, as it prevents the fraudulent duplication of keys - for manually operated locks - and can only be duplicated with the authorisation of a user with a code on special machines.

To buy an uncopyable lock you should look for the "uncopyable key" feature on the packaging of the lock, so that when a copy is made, a unique code will be requested, inscribed on a security card that comes with the lock.

As a recommendation, it is suggested to choose locks with security systems that incorporate this protection barrier to prevent or hinder the copying of unauthorised keys, providing greater security and peace of mind to the owners.


Certification is not a lock's own element, however, it is a standard of the lock manufacturer, which guarantees the highest standards and protocols to deliver quality and resistance in its products.

The recommendation is always to prefer locks from ISO 9901 certified manufacturers that comply with quality standards, to guarantee the satisfaction, expectations and demands of consumers.

ISO 9001 is an international standard that specifies the requirements for a quality management system, and outlines the best practices for its application.
(Photo: Sarote Impheng /


It is important to identify where a lock will be installed, there are different lock coatings for different spaces, which have a direct relationship to the manufacturing material they are made of.

The most durable locks are traditional locks with a lifespan of up to 25 years, while lower quality locks - alloys such as metal and aluminium - can break down more easily, as can digital locks which can be affected by power outages that damage the system.

For locks installed on exterior doors, a high wear-resistant, anti-rust and anti-corrosion lock made mainly of steel is recommended, while for interior spaces, the recommendation is to use more basic locks made of metal alloys and aluminium -which are generally less expensive-.


The ability to masterkey a lock allows you to open a lock with the use of a master key - regardless of whether it has another key assigned to it - so you can have more control and improve the organisation of who enters and exits.

To masterkey a lock, we recommend you visit a locksmith before installing it, making sure that all the locks and keys you want to access are of the same model and brand, otherwise it will not be effective, as all manufacturers produce different keys.

This type of lock is mostly used in common spaces such as offices and schools. Therefore, its use is recommended to give access to different people who come to the same place, providing a universal backup for master keyed locks.

(Featured image photo: Elvira Koneva/

Why you can trust me?