DOORS & JOINERY

Repair a split door frame

Glue, clamp and reinforce a split door frame, then fill, sand and repaint for a solid, tidy repair.

DF-01Check the door and find the causeOpen and close the door slowly and look along the frame for the split - most start at a hinge screw or where the door has been forced. Check whether the frame has pulled away from the wall or the split is only in the timber. Note the length and depth of the split so you know how much glue and clamping you'll need.
DF-02Clear the area and remove the doorLay a dust sheet under the frame to catch debris and drips. Unscrew the hinges from the door and lift it clear, resting it against a wall padded with cloth so it doesn't get damaged. This gives you full access to the frame and keeps your flooring clean.
1 each · Dust sheet
1 each · Padded cloth or old blanket
DF-03Work out what's behind the frame and pick the right fixingRun a magnet or stud detector along the wall near the frame - a steady line of screw heads under plasterboard means a timber stud, a magnet that clicks onto flat steel means a metal stud. Tap the wall: a dull thud means stud or masonry, a hollow sound means the gap between studs. Drill a small 2mm test hole in an unseen spot - pale dust means timber, fine grey swarf means metal, and brick or block dust means solid masonry. Use a wood screw into the centre of a timber stud, a self-drilling metal-stud fixing or hollow-wall toggle for a metal stud (never a plain plug or wood screw, which strips straight through 0.5mm steel), a wall plug sized to your screw in solid brick or block, and a longer fixing (usually 60-75mm) through dot-and-dab board into the masonry behind.
1 each · Magnet or stud detector
1 each · 2mm drill bit
DF-04Check for hidden pipes and cables before you drillCables and pipes can run in unexpected places, especially near door frames where switch or socket wiring often passes. Run a cable and pipe detector over the fixing area, but still treat it as if something is there - detectors can miss cables that are deep, in metal conduit, or behind metal-backed board. Find your stopcock (usually under the kitchen sink) and check it turns freely, so you can shut off the water fast if you hit a pipe. If you have any doubt, isolate the circuit at the consumer unit before drilling, and turn off the water at the stopcock before cutting into anything that could carry water.
1 each · Cable and pipe detector
DF-05Glue and clamp the splitOpen the split slightly and work PVA wood glue into it with a thin scrap of wood or old spatula, coating both faces. Close the split and clamp it with a sash clamp or two G-clamps, using scrap wood pads to protect the frame. Wipe off excess glue straight away with a damp cloth, then leave clamped for at least 30 minutes.
1 bottle · PVA wood glue
2 each · G-clamps
2 each · Scrap wood pads
DF-06Reinforce the repair with screwsOnce the glue has cured, drill pilot holes through the frame into the fixing point you identified earlier - timber stud, metal stud, masonry or dot-and-dab. Drive in screws using the fixing type and length that match that wall, spacing them roughly 150mm apart along the split. Countersink the heads slightly below the surface so filler can cover them.
6 each · Wood screws 40mm
4 each · Wall plugs 6mm
2 each · Hollow-wall toggle fixings
DF-07Fill and sandPush wood filler into the glue line and over the screw heads with a filling knife, slightly overfilling to allow for shrinkage. Leave to dry as directed on the tin, usually 20-40 minutes. Sand back with 120-grit then 240-grit paper until flush and smooth.
1 tub · Wood filler
1 each · Filling knife
1 pack · Sandpaper (120 and 240 grit)
DF-08Prime and paint or varnish to matchWipe away sanding dust with a tack cloth. Apply wood primer over the filled area if the frame is painted, or a matching stain or varnish if it's a natural finish. Once dry, apply one or two coats of your matching topcoat, feathering the edges so the repair blends in.
1 tin · Wood primer
1 tin · Matching paint or varnish
1 each · Small paintbrush
DF-09Rehang the door and testScrew the hinges back onto the frame in their original positions. Lift the door back into place and check it opens, closes and latches smoothly without catching. Adjust the hinge screws slightly if the door binds or leaves an uneven gap.
6 each · Replacement hinge screws
DF-10Tidy upRemove the dust sheet and shake off any debris outside. Wipe down the frame and surrounding area with a damp cloth to clear dust and filler residue. Dispose of offcuts and empty containers according to your local council's guidance.
1 each · Cloth
1 pack · Bin bags

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