Common problems with sliding doors
Practical guide for locksmiths, installers, and DIY customers
Sliding doors are widely used throughout Europe in houses, apartments, and commercial buildings. For locksmiths, repair companies, installation companies, and technical DIY customers, problems with sliding doors are common. A sliding door that is hard to move, blocks, or no longer closes properly can have various causes.
At Openingstechnieken.com, we supply parts for common sliding door systems from brands including GU (Gretsch-Unitas), Sobinco, Siegenia, Maco, Aliplast, and Eland Brandt. These parts are used by professionals and repair specialists in many European countries to which we ship.
In this guide, we describe the most common problems with sliding doors and where the cause is usually found.
Types of sliding doors
Lift-and-slide doors (Lift and Slide)
Lift-and-slide doors are often used in large glass facades and modern homes. By operating the handle, the door is lifted slightly, allowing it to slide smoothly over the track.
When these systems wear out, the following issues often arise.
✔ Door slides heavily
✔ Door no longer lifts up
✔ Lift lock does not work properly
✔ Rollers worn out
✔ Door does not close properly anymore
In many cases, the cause lies with worn rollers or a damaged bottom track. For this type of system, parts from brands such as GU, Sobinco, Siegenia, and Maco are regularly replaced.
Tilt-and-slide doors (PSK systems)
Another common type of sliding door is the tilt-and-slide door. This system is also called PSK, which stands for Parallel-Schiebe-Kipp-Beschlag. The door can both tilt for ventilation and slide.
When a PSK system has problems, the following issues may occur.
✔ Door no longer tilts
✔ Door no longer slides
✔ PSK hardware blocks
✔ Folding hinges defective
✔ Corner transmissions damaged
PSK systems are common with brands such as GU, Siegenia, and Maco and are often used in houses and apartments.
Standard sliding doors
In addition to lift and PSK systems, there are also standard sliding doors without a lifting mechanism. These doors move directly on rollers in a track.
When these systems wear out, the following problems can occur.
✔ Sliding door runs stiffly
✔ Door comes off the track
✔ Roller wheels worn
✔ Guidance damaged
✔ Door does not close properly
Problems with rollers and roller wheels
One of the most common causes of a poorly functioning sliding door is wear of the rollers or roller wheels. When these parts are worn, the door can slide heavily or move jerkily.
Common complaints include.
✔ Door slides heavily
✔ Door moves jerkily
✔ Door sags on one side
✔ Door no longer runs straight
For many repairs, the rollers are therefore replaced. Commonly used parts include GU rollers, Sobinco rollers, Eland Brandt roller wheels, and Aliplast rollers such as the ACVG systems.
For locksmiths and repair companies, it is important to determine the correct version and rebate height of the roller before ordering a replacement part.
Problems with locks and locking mechanisms
In addition to the rollers, the locking mechanism can also wear out. When a sliding door no longer closes properly, this can have various causes.
Common complaints include.
✔ Sliding door does not close properly
✔ Lock turns stiffly
✔ Hook lock does not catch
✔ Lock points do not engage properly in the strike plates
✔ Handle spins freely
These problems occur, among others, in systems from GU, Sobinco Penta-Lock, Siegenia, and Maco.
Problems with tracks and guidance
The bottom track plays an important role in the smooth operation of a sliding door. When dirt, sand, or wear is present in the track, it can cause the door to slide heavily or move jerkily.
Common causes include.
✔ Dirt and sand in the track
✔ Wear from intensive use
✔ Damaged guidance
✔ Incorrect door adjustment
In many cases, cleaning the track can reduce the problem. However, if the track is damaged or worn, it may be necessary to replace parts of the system.
Problems caused by frame settling
In older homes, it is common for the bottom threshold of the sliding door to settle. When this happens, the door can hang crookedly and the mechanism is put under extra strain.
This can lead to various complaints.
✔ Door rubs against the frame
✔ Lock turns stiffly
✔ Door no longer closes properly
✔ Mechanism wears out faster
In such situations, it is important to first assess the construction of the frame before replacing parts.
Who are these repairs intended for
Our customers consist of various types of professionals and technical users.
Locksmiths regularly encounter defective sliding door locks and locking mechanisms. Window and door repair companies often carry out complete overhauls where rollers, tracks, and locking mechanisms are replaced. Installation companies come across sliding doors during renovations that need to be readjusted.
In addition, there are many technical DIY customers who want to repair their sliding door themselves using parts and instructions.
Parts for sliding door repair
At Openingstechnieken.com we supply a wide range of parts for repairing sliding doors. These parts are used by professionals in various European countries.
Our range includes, among other things,
✔ Sliding door rollers
✔ PSK hardware parts
✔ Sliding door locks
✔ Tracks and guides
✔ Handles and levers
✔ Sealing rubbers
✔ Renovation parts
Our parts are suitable for systems from GU, Sobinco, Siegenia, Maco, Aliplast, and Eland Brandt.
Advice for professionals
When a sliding door slides heavily or does not close properly, it is important to first identify the cause of the problem. In most cases, the cause is wear of the rollers, dirt in the track, incorrect adjustment, or a defective locking mechanism.
Therefore, always first check the main parts of the system.
✔ Check the rollers
✔ Check the bottom track
✔ Check the door adjustment
✔ Check the locking mechanism
✔ Check the frame for sagging
By systematically checking, it can quickly be determined which part needs to be replaced, allowing the sliding door to function smoothly again.
More information about parts for sliding door repair can be found at Openingstechnieken.com, where we supply parts to locksmiths, repair companies, and DIY customers throughout Europe.