Brand-Specific Lock Replacement

Lock Replacement by Brand – Not Every Lock Is Interchangeable

Locks made by different manufacturers are not interchangeable. Some systems use unique dimensions, special key profiles, or multi-point locking mechanisms, which means that during replacement it is not enough to simply choose a general lock — proper lock replacement by brand is essential. An incompatible type can cause operational issues or security risks. We always begin by identifying the existing lock, as this determines what is compatible with the specific door.

FAQ – Lock Replacement by Brand

Why does the lock brand matter?

Because locks from different manufacturers are not interchangeable, proper lock replacement by brand is extremely important. This is especially true for security doors and multi-point locking systems, where dimensions, fixing points, and the structure of the door itself determine compatibility. Even the smallest mismatch can result in operational problems.

How do you determine the required lock size?

The most reliable measurement is always taken after removing the old lock cylinder. We measure the total length of the cylinder, the external and internal protruding sections, as well as the diameter. For example, Mottura locks are often manufactured with total lengths between 72–92 mm, while Dierre and CISA models usually range between 85–95 mm. Chinese security doors almost always use unique sizes.

How long does the work take?

During lock replacement by brand, a standard cylinder replacement for brands such as Mottura, CISA, or Atra usually takes 15–35 minutes. More specialized multi-point or safe locks such as Dierre, Viro-Cerutti, or HiSec generally require 45–90 minutes. Chinese security doors often require 40–70 minutes because of the precise fitting and fine adjustments needed.

Which brands do you work with?

We regularly work with the following brands: Viro-Cerutti — Italian high-security safe locks requiring specialized expertise; Dierre — lever-key locking systems requiring manufacturer-specific knowledge; Mottura, CISA, and Atra — widely used Italian lock cylinders and multi-point locking systems.

How is lock replacement by brand different from standard lock replacement?

Lock replacement by brand is not simply about replacing one component — it involves taking the entire locking system into account. Especially with multi-point locking systems, precise adjustment of the strike plates is essential, as even the smallest deviation can cause operational issues. After installation, we perform detailed fine-tuning to ensure every locking point closes perfectly.

How Do We Work?

1. Lock Identification

During lock replacement by brand, we identify the exact brand and model specifications to determine the appropriate replacement.

2. On-Site Measurement

After removing the old lock cylinder, we take precise measurements: total length, external and internal protrusion, and diameter.

3. Selecting the Correct Lock / Cylinder

Based on the brand, door type, and dimensions, we select the compatible MABISZ-certified component.

4. Removing the Old Lock

Handles, covers, and fixing screws — everything is carefully removed.

5. Installing and Adjusting the New Lock

Precise fitting, lubrication, and fine adjustment. For multi-point locks, every fixing point is checked individually.

6. Function Testing

We test the lock multiple times from both inside and outside and inspect all locking points thoroughly.

7. Handover

We hand over the new keys and explain everything you need to know about maintenance and proper use.