Once you understand what each hinge screw does, most door niggles take minutes to sort. Knowing how to adjust a new uPVC door or a composite one puts you in control of the small tweaks that keep it swinging sweetly, whether it is rubbing, dropping or letting in a draught. This guide explains the three directions of adjustment and how to use each.
Even a perfectly fitted door moves over time. The frame and wall shift a little with the seasons, the door settles on its hinges, and heat expands the materials in summer. A brand new door often needs its first adjustment once it has bedded in, which is normal rather than a sign of a fault. The trick is knowing which way to turn things.
Most modern uPVC and composite doors hang on adjustable flag hinges, the tall cylindrical hinges you can usually adjust in all three directions with an Allen key. Older doors may have butt or T hinges with fewer adjustment points. Pop off any plastic caps on your hinges and you will see the adjustment screws underneath. It is worth taking a photo first so you remember your starting point.
This is the part that makes everything else make sense. Flag hinges move the door in three directions, and each one cures a different fault.
The height screw lifts or drops the whole door on its hinges.
The lateral screw moves the door left or right within the frame.
The compression adjustment pulls the door tighter against the weather seals or eases it off them.
If a door has more than one issue, tackle them in this order for the easiest result:
Always make small quarter-turn adjustments and close the door to test between each. Big turns overshoot and leave you chasing the fault back and forth.
Sometimes the door is fine but the lock still will not engage cleanly. In that case the keeps (the metal plates on the frame the bolts drop into) need a nudge. Look for shiny marks where the bolts are catching, loosen the keep screws, move it a millimetre or two, and retighten. On a multipoint lock, check every hook and roller engages, not just the main latch.
Hinge and keep adjustments cover the vast majority of door problems. If the door still will not sit right after careful adjustment, a hinge is worn or pulling from the frame, or the lock feels gritty and will not throw, it is time for a professional. A frame that has moved with the building needs correcting properly, not endless tweaking.
We are happy to sort it. Our window and door repairs in York cover hinge and lock adjustments across York and North Yorkshire. If you are weighing up a replacement, our uPVC doors in York and composite doors in York pages show the full range.
Use the lateral adjustment on the flag hinges to move the door away from the edge it is rubbing on, making quarter-turn changes with an Allen key and testing after each. Keep the gaps even down both sides.
Height (up and down) to lift a dropped door, lateral (side to side) to fix rubbing and lock alignment, and compression (in and out) to tighten against draughts or ease a stiff door. Most flag hinges adjust in all three.
New doors settle on their hinges and the frame and wall move a little as they bed in, so a first adjustment soon after fitting is normal. Heat expansion in warm weather can also mean a small tweak.
Use the compression adjustment to pull the door tighter against the seals, then check it still locks easily. If the rubber gasket is flattened or perished, replace it, as no adjustment cures a failed seal.
The height adjustment. Turn the height screw on each hinge a quarter turn at a time, evenly, to lift the door back to level so it stops dragging on the threshold or the frame.
Prefer a fresh door fitted and adjusted properly? Download our latest brochure to browse the range, or request a free quote and we will pop out for a look.