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Reasons Why Your UPVC Doors Are Not Closing Properly

UPVC door not closing properly

When it comes to the security and the comfort of our homes, doors play a crucial role. However, the constant use of doors, particularly UPVC doors, such as front, patio and french doors, may lead to wear and tear over time, resulting in issues like improper closing. Not only does this compromise your home’s security, but it also impacts energy efficiency.

UPVC, or Unplasticized Polyvinyl Chloride, is a versatile material widely used in door and window manufacturing. Its popularity stems from its cost-effectiveness, insulation properties, and resistance to weather elements compared to traditional materials like wood or metal. However, despite their durability, UPVC doors are not immune to problems.

This blog will delve into why your UPVC doors are not closing correctly and offer practical solutions to address these issues.

Common Reasons Why UPVC Doors Fail to Close Properly


Often, the most common reason for a UPVC door not closing properly is misalignment. This typically occurs due to the UPVC door dropping over time, the expansion or contraction of the door due to changes in temperature, or even the settling of the house structure. Misalignment can result in the door not fitting into the frame correctly, making it hard to close or causing it to stick. To fix this, adjustments need to be made to the hinges to realign the door with the frame.

Temperature Changes:

Another common cause of UPVC doors failing to close properly is temperature changes. UPVC is a material sensitive to temperature fluctuations, expanding in hot weather and contracting in colder conditions. This can lead to the door not fitting correctly into the frame, making it difficult to close. A solution to this is to adjust the door during varying weather conditions. Sometimes, a professional might have to resize or reposition the door and frame to ensure a proper fit, regardless of the weather.

Wear and Tear of Hinges and Locks:

Regular use of UPVC doors can cause gradual wear and tear on the hinges and locks, leading to UPVC doors not closing properly. Over time, hinges may become loose, and locks could start to stick, preventing the door from fitting securely into the frame. In such cases, tightening the loose screws on the hinges may help improve the door’s alignment. For stubborn locks, it’s advisable to use a lubricant or, in more severe cases, consider replacing the lock. Always check for visible signs of wear and tear, promptly take action to prevent further damage, and maintain the door’s functionality.

Improper Installation:

Another factor that could contribute to your UPVC doors not closing properly is improper installation. If the door is not fitted correctly at the outset, it will likely cause problems. This could be because the door frame was not levelled adequately during the installation, or the hinges were not suitably aligned, leading to the door not fitting correctly into the frame. This issue often requires a professional to refit the door properly, ensuring all parts are aligned and functioning properly. Remember, proper installation is critical to the longevity and function of your UPVC doors.

Swelling or Shrinking:

Over time or in extreme conditions, these doors may still experience swelling (usually in humid or wet conditions) or shrinking (in dry conditions). Swelling can cause the door to become too large for the frame, making it difficult to close, while shrinking can create gaps between the door and the frame, compromising the security and insulation of your home. Extreme swelling or shrinking could be an indicator of a more severe issue that requires professional intervention. Sometimes, the door may need to be replaced entirely, particularly if it has become warped or is no longer structurally sound. Thus, regular maintenance and check-ups are crucial to ensure your UPVC doors remain in good condition and function optimally.

How To Check A UPVC Doors Alignment

If you suspect that your UPVC door is misaligned, there are some simple checks you can conduct to confirm your suspicions. First, look at the gap between the door and the frame. It should be even all around. If you notice that the gap is wider at the top or bottom, your door is likely misaligned.

To further examine the alignment, open and close the door, paying attention to any resistance or scraping sounds. If the door is difficult to open or close or if you observe any scraping, it’s a clear sign of misalignment. Another helpful tip is to open the door halfway and then let go. If it swings significantly in either direction, likely, the door is not levelled correctly.

Can I Fix A UPVC Door Alignment Myself

Yes, fixing a UPVC door misalignment is possible, provided you have basic DIY skills and the right tools. However, it’s important to exercise caution to prevent causing further damage to the door or the frame. Here’s a simple guide:

  1. Gather necessary tools: You will need an Allen key or a Phillips screwdriver, depending on the type of screws used on your door hinges.
  2. Adjust the hinges: Most UPVC doors have adjustable hinges. Locate the adjustment screw on the hinge (usually the bottom one). Using your Allen key or screwdriver, turn the screw to adjust the door. Turning it clockwise will lift the door, and counterclockwise will lower it.
  3. Check alignment:After making adjustments, check the door to see if it closes properly. Look at the gaps between the door and the frame; they should be even. If the door is still not closing correctly, you may need to adjust the hinges further or check for other issues.

Remember, it’s best to call a professional UPVC door repair locksmith if you’re uncomfortable doing this yourself or if the door still needs to align appropriately after your efforts. Incorrectly adjusting the door could exacerbate the problem or cause damage to the door or frame.

How To Tell If A UPVC Door Is Damaged

Several signs can indicate underlying issues when determining if a UPVC door is damaged. Foremost, difficulty in opening or closing the door is a clear indication of damage. Other telltale signs may include a visible gap between the door and the frame or drafts coming through the door.

Cracks or chips in the UPVC material, rust, or other noticeable deterioration on the hinges or door handle are also clear signs of damage. Similarly, if your door makes unusual noises during operation, such as scraping or creaking, it’s likely damaged.

Lastly, if the door’s lock is difficult to engage or disengage, this could indicate a damaged or worn-out mechanism within the door.

UPVC Lock Not Working

If your UPVC door lock is not working, it can lead to many issues, including compromised security and loss of heat insulation. The problem could be due to various reasons, such as a faulty cylinder, misalignment of the door, wear and tear over time, or a damaged key.

The cylinder might need replacing if you’re having trouble locking or unlocking the door. A misaligned door can pressure the lock, making it harder to operate. Over time, the components inside the lock can wear out, and you might notice the key turning in the lock more stiffly. If the key is damaged, the lock might not work correctly. 

Remember, while minor issues like lubricating the lock or tightening screws can be handled at home, more severe problems like a misaligned door or a faulty cylinder should be addressed by a professional. Always pay attention to the early signs of a failing lock to prevent more significant issues in the future.

When To Call A Professional Locksmith

Although minor UPVC door issues can be handled through simple DIY fixes, some situations necessitate a professional locksmith’s expertise. If you’re experiencing persistent problems with door alignment despite several adjustments, it’s time to call a pro.

Similarly, a locksmith should examine when your lock mechanism becomes stiff or the key won’t turn smoothly. Any signs of damage, such as cracks, chips, or noticeable deterioration on hinges, also warrant professional attention. Additionally, if the door’s lock fails to engage or disengage quickly, you might be dealing with a damaged or worn-out mechanism that requires a locksmith’s intervention.

Delaying or ignoring these signs may lead to more serious issues, potentially compromising your home’s security and insulation.

How To Prevent Damage & Improve Longevity of UPVC Doors

Maintaining and enhancing the longevity of your UPVC doors requires regular care and preventative measures. Following are some essential tips to keep your UPVC doors in top shape:

  1. Regular Cleaning: Clean the doors regularly with a mild detergent and a soft cloth to remove dirt and grime. Abrasive cleaners can cause scratches and damage to the UPVC material. 
  2. Lubricate the Locks and Hinges: Keep the moving parts of the door, like the locks and hinges, well-lubricated. This not only ensures smooth operation but also prevents wear and tear.
  3. Check Alignment: Regularly check the alignment of your UPVC doors. Misalignment can increase pressure on certain parts of the door, causing premature wear.
  4. Weather Stripping: Ensure the weather stripping around your UPVC doors is in good shape. This prevents drafts and improves energy efficiency, thus preventing undue strain on the material due to temperature fluctuations.
  5. Avoid Excessive Force: When operating the door, avoid using excessive force. A well-maintained UPVC door should function smoothly. If you need to push, pull, or slam the door, it will likely need some attention.

Ensuring the Performance of Your UPVC Doors

Incorporating these simple yet effective practices into your regular home maintenance routine can go a long way in preserving the durability and efficiency of your UPVC doors. These steps will help keep your doors functioning smoothly and extend their lifespan, saving you the cost and hassle of frequent replacements.

Moreover, being mindful of early signs of damage and addressing them promptly can prevent minor issues from escalating into major problems. Whether it’s a small task like applying lubricant to a stiff lock or a more complex job requiring professional assistance, such as rectifying door misalignment or replacing a faulty cylinder, each action contributes to upholding the overall integrity of your UPVC door.

Regular care and timely interventions are important to ensure your UPVC doors are in top shape and ensure a secure, comfortable, and energy-efficient environment in your home.

Remember, don’t hesitate to consult a professional locksmith when in doubt. After all, your home’s safety and insulation are worth the investment.

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