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How To Adjust a Multipoint Door Lock

How To Adjust a Multipoint Door Lock - 5 Simple Steps

Multi-point door locks are advanced security systems designed to provide enhanced protection for residential and commercial doors.

Unlike traditional single-point locks that secure doors at a single point, multi-point door locks offer additional locking points at multiple positions along the door frame. These locking points typically include bolts or hooks that engage with the door frame when the lock is activated.

This multipoint locking system configuration significantly improves the door's resistance against forced entry, distributing the force applied across several points of contact rather than a single vulnerable spot. Multipoint locks are known to be a highly secure and reliable defense against unauthorized access.

However, over time, these locks may require adjustments to ensure optimal performance. Whether your door is not closing properly, is difficult to lock or unlock, or showing signs of misalignment, knowing how to adjust a multipoint door lock yourself can save you both time and money.

In this step-by-step guide, we will walk you through the process of adjusting a multipoint door lock, enabling you to maintain the functionality and security of your doors.

But first, let us make a note of the tools that you will need for adjusting your multipoint door locks.

Tools Required For Multipoint Lock Adjustment

To adjust your multipoint door locks, you will require the following tools - 

  • Flat Head Screwdriver
  • Allen Key
  • Silicone-based Lubricant

5 Steps To Adjust a Multipoint Door Lock

Before you begin adjusting your multipoint door lock, it's essential to identify the type of lock mechanism you have. There are 3 types of multipoint door locks available, such as euro cylinder locks, lever-operated locks, and shoot bolt locks. 

Let us check out the steps in detail for adjusting your multipoint door locks.

Step 1: Check for Loose Screws or Hardware 

Inspect the lock and its surrounding hardware for any loose screws or components. Over time, constant use can cause screws to loosen, which can lead to misalignment or difficulty in operation. 

Use a screwdriver to tighten any loose screws, hinges, handles, hinges or other components of the multipoint lock mechanism. This simple step can often resolve minor issues and improve your lock's performance.

Step 2: Adjust the Latch Alignment 

If your multipoint door lock has latch bolts, check their alignment with the corresponding strike plates on the door frame. The latch bolts should fit smoothly into the strike plates without any resistance. 

If the alignment is off, use a screwdriver to adjust the strike plates, moving them up, down, or sideways as needed. Test the lock's functionality after each strike plate adjustment to ensure the latch bolts engage and retract smoothly.

Step 3: Adjust the Locking Points

Multipoint door locks often feature multiple locking points along the door edge. If you notice that the door is not closing properly or the locking points are not engaging smoothly, it may be necessary to adjust them.

  1. Begin by partially opening the door to expose the locking points.
  2. Locate the adjustment screws or Allen key bolts on the lock mechanism. These are usually found on the side or faceplate of the lock.
  3. Gradually turn the adjustment screws or bolts clockwise or counter-clockwise to adjust the height or depth of the locking points.
  4. Test the door's closing and locking functionality after each adjustment. 

Step 4: Examine the Lock and Door Alignment

Visually inspect the lock and door alignment. Look for any signs of misalignment, such as gaps or uneven spacing between the door and the frame. 

A misaligned door can put a strain on the multipoint locking system and affect its performance. Ensure that the door is properly aligned with the frame before proceeding to adjust the lock.

Step 5: Lubricate the Lock Mechanism

Regular lubrication is essential to keep your multipoint door lock operating smoothly. Over time, dust, dirt, and debris can accumulate within the lock mechanism, causing friction and hindering its performance.

Apply a silicone-based lubricant to the moving parts of the lock, such as the bolts, handles, and spindle. Avoid using oil-based lubricants as they can attract more dirt and potentially damage the lock mechanism. Lubricating the lock periodically will help maintain its functionality and extend its lifespan.

6 Reasons Why a Multi-Point Door Lock Doesn’t Work 

There are 6 main reasons why your multipoint door lock won’t work. Let us take a look at them.

  • Misalignment

Misalignment can cause not only general issues with a multi-point door lock, but it can also contribute to a lock becoming jammed. If the door or frame shifts or settles, the locking points may not align properly with the corresponding points on the frame. This misalignment can put excessive pressure on the lock mechanism, causing it to jam.

As a result, the locking points on the door may not align properly with the corresponding points on the frame, preventing the lock from engaging and locking correctly. Misalignment can occur horizontally or vertically and may require adjustment or realignment to ensure proper operation.

  • Jammed Lock

When the lock becomes jammed, it prevents the smooth engagement or disengagement of the locking mechanism, rendering the door difficult or impossible to lock or unlock. There are various factors that can cause a lock to jam. It could be due to the accumulation of debris or obstructions within the lock mechanism, such as dust, dirt, foreign objects, or mechanical failure.

Addressing a jammed lock often requires the expertise of a professional locksmith. They can carefully diagnose the cause of the jam, clean the lock mechanism, repair or replace any damaged parts, and restore the proper functionality of the multi-point door lock.

  • Broken or Problematic Gearbox

The gearbox serves as a critical component within the lock mechanism, responsible for converting the rotational motion of the key or handles into the necessary movements to engage or disengage the locking points. When the gearbox becomes damaged or malfunctions, it can prevent the lock from operating and locking correctly.

This issue can occur due to factors such as worn or damaged gears, inadequate lubrication, misalignment or loose components, manufacturing defects, or excessive force or impact on the lock.

  • Dropping Handles

When the handles of a door drop or sag, it hinders the proper engagement or disengagement of the lock mechanism. Loose handle fixings, worn hinges, spindles, or handle mechanisms, misalignment or binding between handles and the lock mechanism, faulty handle design or quality, and excessive force or impact can all cause handles to drop.

This issue can affect the overall functionality and security of the lock. To address dropping handles, you can tighten the screws inside the lock cylinder. If the problem still persists, consult a professional locksmith.

  • Difficulty Rotating the Key

Difficulty rotating the key is a very common reason why a multi-point door lock may fail to work properly. When it becomes challenging to turn the key in the lock cylinder, it hampers the smooth operation of the locking mechanism. 

This could be due to a damaged key or a malfunctioning lock cylinder. To resolve the difficulty in rotating the key, it is recommended to first ensure the key is in good condition. If the key is not the problematic area, the problem is with the lock cylinder.

  • Wear & Tear

If the lock components, such as the latch, rods, or internal mechanisms, become rusted or corroded, it can impede their movement and cause the lock to jam. Rust or corrosion can develop due to exposure to moisture, humidity, or environmental conditions.

Regular maintenance, lubrication, and using corrosion-resistant materials can help prevent this problem. If rust or corrosion has already occurred, the affected parts may need to be cleaned, lubricated, or replaced.


Adjusting a multipoint door lock doesn't have to be a daunting task. By following the steps outlined above, you can troubleshoot common issues and keep your multipoint lock functioning optimally. However, if you encounter any complex issues or if your lock is severely damaged, it is advisable to seek professional assistance.

In order to avoid such issues, you should consider purchasing high quality Internal Doors & External Doors. Investing in doors with good quality, not only increases the lifespan of the doors but also saves you from many maintenance hassles.

FAQs on How To Adjust Multipoint Door Lock

  • What are the problems with a multi-point locking system? 

Common problems with a multi-point locking system include misalignment, jammed locks, dropping handles, broken or problematic gearboxes, and difficulty rotating the key. These issues can affect the smooth operation, security, and functionality of the door lock system, requiring assistance for repair and restoration.
  • How do you lock a multi-point locking system? 

To lock a multi-point locking system, you typically need to engage multiple locking points simultaneously. You can do this by turning the key or lifting the door handle up, which activates the lock mechanism to extend bolts or hooks into corresponding strike plates or receivers on the door frame, providing enhanced security and sealing the door.
  • How do you use a multipoint door lock? 

To use a multi-point door lock, simply insert the key into the lock cylinder or operate the handle. Turn the key or lift the handle to engage the locking points, which extend into the door frame. To unlock, turn the key or handle in the opposite direction to disengage the locking points.
  • What is the difference between multipoint lock and mortise?  

The main difference between a multipoint lock and a mortise lock lies in their design and functionality. A multipoint lock utilizes multiple locking points that extend into the door frame, offering enhanced security. In contrast, a mortise lock is a type of lockset that is installed within a pocket (mortise) cut into the door, typically offering a single locking point.

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Author: Shabana kauser

Shabana Kauser, the Director of Emerald Doors, brings over 20 years of invaluable expertise in the door industry. Her visionary leadership has steered the company to new heights, offering an extensive range of internal and external doors while prioritizing quality and customer satisfaction. The website's glowing reviews stand as a testament to her commitment to excellence. To learn more about Emerald Doors, connect with us on Instagram, Facebook, Twitter, and Pinterest.