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How to adjust a uPVC door

Learn how to adjust a uPVC doors easily at home with our easy-to-follow guide.


By Cleanipedia Team

closeup of white uPVC door slightly ajar
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Key steps

  • Use a 5mm Allen key to make any adjustments.

  • Count the number of turns to match it on each hinge.

  • Check after each adjustment to see if the issue is fixed so you don’t over-do it.

  • Call a professional if you’re still having trouble with your uPVC door.

uPVC doors are lightweight, strong, and reliable, but they might need some adjusting if the door is misaligned with the doorframe, making it hard to close. Read on to find top tips on identifying which parts of the door need to be adjusted and how to adjust uPVC French doors, front doors, and more with ease at home.

Need to adjust some kitchen cupboard doors, too? Take a look at our simple guide.

If your door is still in warranty, you’re privately renting or you have tried unsuccessfully to realign your door, call in a professional to make the right adjustments.

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When should you call a professional to adjust your uPVC door?

Although this guide will walk you through how to adjust a uPVC front door or back door, it is important to note that there are times when you should call a professional.

  • Always check with your landlord if you are in a privately rented home before adjusting one of your doors.

  • Always check if your door is still in warranty. Many brands do not allow for self-adjustments, and you do not want to void your warranty by making any adjustments.

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How to adjust a uPVC door: fixing the most common issues with misaligned uPVC doors

Whether you need to know how to adjust uPVC door height, have a lock out of alignment or another issue, we’ve got you covered. Read on for a step-by-step guide to fixing the most common misalignment issues for uPVC doors.

Realigning a uPVC door which won’t lock properly

If your uPVC door won’t lock properly, the door could be misaligned from the doorframe. Simply follow these steps:

  1. First, remove the plastic covering of the hinge which runs parallel to the bottom of your door using either your hands or a screwdriver. 

  2. Locate the hole in the main part of the hinge. Using an Allen key (usually you will need a 5mm), turn the key until the door pulls back towards the hinge side. Always take care to count the number of turns.

  3. Repeat the above step with the middle hinge. 

  4. After each adjustment, check that your door closes and locks correctly.

  5. Turn the Allen key until the door is completely aligned with the doorframe.

Raising a uPVC door that has dropped

If your uPVC door has dropped, the above steps won’t fix the locking issue. Instead, follow the guide below:

  1. Locate the hole at the bottom of the hinge. This will help you adjust the height.

  2. Put an Allen key into the hole and turn it until the door raises slightly. Don't forget to count the number of turns.

  3. Repeat the above step with the middle hinge. 

  4. After each adjustment, check if your door is correctly aligned before continuing to adjust it.

  5. If you’re still having trouble shutting and locking the door, try replacing the hinges first. This is much cheaper than purchasing a replacement uPVC door!

  6. If, after trying both of these methods, you’re still having issues with your uPVC door, call in a professional. They will be able to rectify the problem quickly and easily.

  7. Now you know how to adjust uPVC door hinges, click here to find out how to fix a squeaky hinge.

With this guide we’ve shown you how to adjust cupboard doors, so you can be sure to have your uPVC door realigned, closing, and locking properly in no time.

Originally published