How to Fix Cabinet Hinges: Common Problems & Fixes

Cabinet doors take a tremendous amount of daily wear and tear in any busy home. Over time, doors can begin to sag, fail to close flush, or pull away from the carcase entirely. Fortunately, fixing cabinet hinges is usually a straightforward task that requires only basic hand tools and the right replacement hardware. Whether you are dealing with stripped screw holes or simply need to re-align an uneven cupboard door, this practical guide walks you through diagnosing and solving the most common hinge problems.

Diagnosing Misaligned and Sagging Doors

Before replacing any hardware, check if the issue is a simple matter of adjustment. Modern kitchen and wardrobe doors almost universally use standard concealed hinges (often referred to as European or cup hinges). These hinges feature built-in adjustment screws that control the position of the door in three dimensions:

• Lateral (Side-to-Side): The front screw on the hinge arm shifts the door left or right, ensuring even gaps between adjacent doors.
• Depth (In-and-Out): The rear screw adjusts how close the door sits to the cabinet face, preventing binding or rubbing against the carcase edge.
• Height (Vertical): Screws on the mounting plate attached to the carcase allow you to move the entire door up or down to align with neighbouring units.

Use a manual Pozi screwdriver to turn these screws by a quarter-turn at a time until the door hangs straight and operates smoothly.

Fixing Stripped Screw Holes in Chipboard Carcases

One of the most frequent structural issues when fixing a cabinet hinge is a stripped screw hole. Standard carcases made from MDF or chipboard can crumble around screw threads if doors are forced or overloaded. When the wood screw spins freely and cannot bite, you have several reliable repair methods:

1. Wooden Dowel or Matchstick Plug

Remove the hinge mounting plate completely. Clear loose debris from the damaged hole, coat a small wooden dowel (or several hardwood matchsticks without heads) in PVA wood glue, and tap it firmly into the hole. Allow the glue to cure fully, trim any protruding wood flush with a chisel, and drill a fresh pilot hole for the wood screw.

2. Hinge Repair Plates

If the chipboard is blown out beyond a simple plug repair, steel hinge repair plates offer a permanent, heavy-duty solution. These flat metal plates fit between the carcase and the mounting plate (or between the door and the hinge cup). They feature multiple pre-drilled fixing points, allowing you to anchor screws into undamaged areas of the surrounding board while maintaining the standard 32 mm system spacing.

When to Replace the Concealed Hinge

If adjusting screws does not solve the problem and the hinge arm feels loose or bent, the internal spring mechanism or metal casting has likely failed. When replacing concealed hinges, ensure you match key dimensions:

• Cup Diameter: The standard size across UK cabinetry is a 35 mm cup hole bored into the back of the door, though some compact units use 26 mm cups.
• Overlay Type: Identify whether your door is full overlay (covering the entire carcase edge), half overlay (sharing a central divider with an adjacent door), or inset (sitting flush inside the frame).
• Mounting Hole Centres: Check the screw spacing on the hinge cup (typically 45 mm or 48 mm apart) so the new fittings align with existing holes.

Tools and Fixings for Long-Lasting Repairs

Proper installation prevents future hinge failure. When mounting hinges into composite boards, avoid using standard countersunk drywall screws, which can split the material. Instead, use proper 3.5 mm or 4 mm gauge wood screws or purpose-designed Euro screws (5 mm or 6.3 mm threaded screws that fit directly into 5 mm pre-drilled system holes). Always support the weight of the door while tightening fixings to avoid putting unnecessary lateral stress on the carcase.