Create a burglar-proof home with a 3-star cylinder lock

Create a burglar-proof home with a 3-star cylinder lock

3-star cylinderAlways wanted a burglar-proof home? With a 3-star cylinder lock, you have a secure lock on your door. Your property will prefer to be skipped by criminals from now on.

On this page, we give you more information about a 3-star cylinder and what exactly those three stars mean.

Locksmith 365 will gladly install a 3-star cylinder lock on your door. We do this at a low price and with great accuracy. Contact us and we will come to you soon!


All work performed by Locksmith 365

Locksmith 365 is a reliable locksmith with years of experience. No lock is too complicated for us. Within 30 minutes we will be with you if there is a hurry. We are available 24 hours a day.

These are our services:

  • Installing new hardware, SKG approved.
  • Repairing your locks.
  • Replacing your locks.
  • Opening doors.
  • Burglary prevention tips and advice.

About the Foundation for Quality Facade Construction

3-star cylinder lockStichting Kwaliteit Gevelbouw (SKG) is an organization that tests, inspects and ultimately certifies hardware for the housing industry with a star rating.

Hardware includes all products used to hang, open, secure, close and lock windows and doors.

Manufacturers of hardware have their locks tested, certified and approved by SKG. All locks are tested on standard quality windows and doors. Locks are retested over time to see if they still meet requirements. In fact, burglars are inventing more and more ways to get in even faster.

The Foundation for Quality Facade Construction puts itself in the shoes of the burglar
SKG tests hardware by seeing exactly how the burglar proceeds. What tools does a burglar use to get in? The SKG therefore tests with hammers, screwdrivers and other tools how long it takes for a lock to be broken open.

When a lock can withstand a certain number of minutes of burglary, the lock receives an SKG seal and is officially SKG approved. Several classifications exist within the hallmark. The ratings are stars in three categories, called SKG stars.

The significance of an SKG 3-star cylinder

Locks are tested by the SKG using a star system. A certain amount of stars indicates how burglar-resistant a lock is. The more stars, the stronger and more secure a lock is.

SKG starsSKG lock 1 star: standard burglar resistance
An SKG lock with 1 star is non-independent burglar proof. This means that these locks are placed with one other equivalent or stronger SKG lock. A 1-star SKG lock can withstand about 3 minutes of burglary if the burglar uses simple tools, such as a crowbar or screwdriver.

SKG lock 2 stars: heavy burglar resistance
Locks with 2 stars can withstand 3 minutes of burglary if the burglar applies an extensive tool kit.

From two stars up, locks can be placed independently.

SKG lock 3 stars: extra heavy burglar resistance
Locks with 3 stars keep burglars out for 5 minutes when using heavy tools.

Now you may be thinking: only 3 to 5 minutes? For a burglar, however, that is a very long time. Who already finds a minute long and is on average inside somewhere within 30 seconds. The danger of being caught in the act by a bystander is, of course, heart-stopping if he spends more than half a minute.

SKG product with a checkmark
In addition to SKG locks there are also products that come with an SKG checkmark. These products are burglary-resistant but not lockable. They are a good addition to SKG locks.

The benefits of Locksmith 365

  • On site in 30 minutes
  • Available 24/7
  • Always carrying the right equipment
  • Perform work 100% damage-free
  • Familiar with all locks
  • Over 25 years of experience
  • Efficient, skilled working method
  • Fixed, low prices
  • Different payment options
  • Free service
  • Fantastic reviews


  • Individuals
  • Companies
  • Tourists *
  • Expats *
  • Airbnb *

* Locksmith Amsterdam 365 speaks English.

Contact with Locksmith 365

Still have questions about a 3-star cylinder lock? Or would you like to know more about the SKG logo? Contact Locksmith 365.

Phone number: 06-193777 76
E-mail address:

Frequently Asked Questions

What is the significance of SKG stars?
The SKG rating can consist of 1 to 3 stars. The number of stars indicates how burglar-resistant a lock is. The more stars, the stronger and more secure a lock is.

What do the 3 stars in a cylinder lock 3 stars mean?
The stars indicate that the cylinder lock is approved by the SKG. A 3-star cylinder lock is extra heavy burglary-resistant. It takes a burglar at least 5 minutes to open such a lock.

When can I reach Locksmith 365?
Locksmith 365 is available 365 days a year, 7 days a week, 24 hours a day.

We are the locksmith for when you are locked out, have lost your keys or need other help with your locks. We are 24 hours a day available, 7 days in the week



Need help?

Do not hesitate and do not hesitate and contact us. We are happy to help you.

Scope of work

Do you live or are you temporarily in the Amsterdam area and are you looking for a locksmith? Locksmith Amsterdam 365 is ready for you, day and night. Moreover, Locksmith Amsterdam 365 is on site within 30 minutes.


446 recensies op
Yuri Sharapa
Yuri Sharapa
Hi! Yesterday I slammed the door in the evening and left the key inside. I called and ordered this master. Then I read the reviews here and was surprised how many negative reviews there are) I called them and said that I didn’t want to fall into their trap if they tried to scam me. Fortunately for me, there was no deception, everything was very adequate, the master was very pleasant and polite. Very nice price for services. Everything was done quickly and without damage. When I asked why there were so many negative reviews here, he replied that he had just bought this company and is building a reputation. Don't be afraid to reach out to these guys. Everything was very clear and professional on their part. I recommend!
Aicha Kone
Aicha Kone
Thank you for your good service. I call their for my car lock. their service is soo fast, I am really impressed.
Sufyaan Grimes
Sufyaan Grimes
The cost of drilling the lock was extremely high. I paid 220 euros, excluding taxes, just for a hole in the lock. I didn't even request a new lock, but if I had, it would have cost even more. The service was quick, with the technician arriving at my home within 40 minutes. They managed to open the door without damaging the frame, only the lock. The technician was also friendly, which is why I am giving them a higher rating. However, I still feel that 220 euros for drilling a lock is excessive, even for a company. It would have been more reasonable if the cost included a lock replacement.
Lisa van den Bor
Lisa van den Bor
Sleutel aan de binnenkant van de deur laten zitten, stom! Ze stonden gelukkig zelfs op zondag binnen 20 minuten voor de deur en Jeffrey maakte onze deur snel en zonder schade open. Super blij mee, ik zou ze zeker weer bellen.
massimo coppola
massimo coppola
Slotenmaker uit Haarlem is nooit komen opdagen, maar Moerad is uit Amsterdam gekomen om ons direct weer naar binnen te laten, super vriendelijk en begripvol
Patrick Owusu
Patrick Owusu
Fast friendly got My car open quickly.Thats all you can Ask for with this type of Service.
Arthur Niel
Arthur Niel
Top werk binnen 2 min open een tover naar onder de deuren open makers Mourad
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