How to Fix Cabinet Door Hinges: A Step-by-Step Guide

Cabinet doors take a significant amount of daily wear and tear, whether in a busy family kitchen or on a bedroom wardrobe. Over time, constant opening and closing can cause doors to drop, rub against adjacent units, or come loose from the carcass entirely. Learning how to fix cabinet door hinges is a straightforward DIY task that requires only a few basic tools and the correct replacement hardware.

Diagnosing Common Cabinet Hinge Problems

Before reaching for your toolkit, inspect the cabinet to identify the root cause of the issue. Most kitchen and wardrobe units use standard concealed cup hinges (commonly 35 mm), and problems generally fall into three categories:

• Misalignment: The door sits crooked, catches on the frame, or leaves an uneven gap, but the screws are still tight.
• Loose fixings: The mounting plate or hinge arm wobbles because the screws have worked loose from the MDF or chipboard carcass.
• Stripped screw holes: The wood fibres inside the screw holes have shredded, preventing the fixings from gripping.
• Mechanical failure: The internal spring or arm of the hinge is bent, snapped, or worn out.

How to Align and Adjust Sagging Cabinet Doors

If the hardware is firmly attached to the carcass but the door is sagging or catching, you do not need to replace the fixings. Standard concealed hinges feature built-in adjustment screws that allow movement in three directions:

1. Side-to-side (Lateral): Locate the front-most screw on the hinge arm. Turning this clockwise moves the door closer to the cabinet edge; turning it anti-clockwise moves it inward.
2. Height (Vertical): Loosen the two screws holding the mounting plate to the cabinet carcass. Slide the door up or down to align it with adjacent doors, then retighten firmly.
3. Depth (In/Out): Adjust the rear screw on the hinge arm to alter the gap between the door and the cabinet face, ensuring the door closes flush without binding.

Fixing Stripped Screw Holes in Chipboard Units

When you need to fix cabinet door hinge screws that simply spin in place without tightening, the particle board around the hole has failed. You can resolve this using several trade-tested methods:

Method 1: Hinge Repair Plates

Hinge repair plates are flat stainless steel or zinc-coated plates that sit between the cabinet wall (or door) and the hinge fitting. They spread the load across multiple new fixing points, covering the damaged area entirely. Simply unscrew the existing hinge, place the repair plate over the blown-out holes, screw the plate securely into sound wood, and mount the hinge plate directly onto the threaded inserts provided on the repair bracket.

Method 2: Wood Plugs and Dowels

If you prefer not to use an external plate, remove the door and hinge. Drill out the stripped hole using a small wood bit, coat a hardwood dowel or matchsticks in PVA wood glue, and tap them firmly into the hole. Once the glue has cured completely, trim the dowel flush with the surface, drill a small pilot hole, and drive the mounting screw back in.

Replacing a Broken Concealed Hinge

If you need to know how to fix a cabinet door hinge that has snapped or lost its spring tension, a full replacement is the most reliable solution. Ensure you match the original specifications:

• Cup diameter: Measure the circular recess in the door (standard size is usually 35 mm, though smaller 26 mm versions exist).
• Overlay type: Determine whether your door is full overlay (covering the entire carcass edge), half overlay (sharing a central partition), or inset (sitting flush inside the frame).
• Opening angle: Standard kitchen hinges open to 95°–110°, while wide-angle corner units may require 165° or 170° fittings.

Unscrew the old fitting from both the door and the carcass, seat the new cup into the existing recess, and secure it with standard wood screws or pre-inserted nylon expansion dowels. Re-hang the door onto the mounting plate and perform final adjustments to achieve clean, uniform margins.