Before rushing out to buy a new door it is advisable to examine the cause of the locking or closing problem. The most common cause of Upvc Door Closing and Locking Problems is misalignment of the door and frame. Misalignment can be caused by a variety of factors, but the two main causes are worn hinges and incorrectly packed door panels or glass.
How to check if your Upvc Door is out of alignment:
Take a look at the mitres on the door and frame, do they line up with each other?
Place a Spirit Level on the top of the door, is the door level?
Measure diagonally from corner to corner and note the difference in the measurements.
Open the door slightly and take a look down the edge of the door on the lock side, is the gap between the frame and the door consistent all the way down or is it smaller at the top than the bottom?
These are all simple ways to check if the door is out of alignment with the frame.
Adjusting the Door on the Hinges:
Most modern doors have “Flag Hinges” that have “up and down” and “in and out” adjustment options. Older doors may have “Butt Hinges” fitted that offer very limited adjustment options.
Adjusting the Flag Hinge:
1. Lateral Adjustment
2. – 3. Height Adjustment or Compression Adjustment
Height adjustment can either be No 2 or No3 depending on the make and model of the hinge.
Remove the plastic plug No1 and insert an Allen Key into the hole, turn the Allen Key until the door starts to pull back towards the hinge side of the frame. Note how many turns you have completed and adjust the middle hinge (if fitted) by the same amount until the door is level with the frame. Keep checking after every adjustment to see if the door is closing and locking correctly.
If the door still catches on the bottom of the frame or is difficult to lock then you may need to raise the door by removing the plastic cover No 2 or No 3 and adjusting all of the hinges up by the same amount until the door closes and locks correctly. Please ensure that you mark the position of the adjuster until you have determined which one is the height adjustment. This can easily be determined by closing the door and turning adjuster No1 or No2, if the door moves towards you or away from you the adjustment is Compression, If the door moves up or down the adjuster is the height.
Upvc Door Closing and Locking Problems
If the door has been fully adjusted and still does not close or lock correctly there are a couple of things that you may want to try. The first is to adjust the bottom hinge away from the door. This will lift the door on the lock side, but be aware that sending the door out at he bottom will also narrow the gap between the lock and the bottom keepers and any over adjustment may make the lock or door hit the frame or keepers. The second thing you can try is to move the keepers down until they are in line with the Latch, locking Bolts, Hooks and or rollers.
Butt hinges have very little adjustment options. The old type of Butt Hinges have an Allen Key grub screw that holds the hinge pin(s) in position. To adjust these type of hinges, remove the grub screw(s) and turn the hinge pin(s) with an Allen Key to pull the door towards the hinge side of the frame. The hinge may have just one grub screw and pin or may have two.
The newer type of Butt Hinges have cross head adjusters and can be easily adjusted with a screwdriver.
If the door will not line up with the frame after adjustment then it may need to be toe and heeled. I will cover this procedure in my next post; Upvc Door Closing and Locking Problems How to Toe and Heel a Door.