Why Does My Door Not Latch Anymore?

A door that used to click shut and now just bounces off the frame is almost always suffering from one thing: the latch bolt and the strike plate no longer line up. Wood moves with the seasons, hinge screws loosen over years of use, and houses settle — any of these shifts the door a few millimeters, which is all it takes. You can diagnose the exact cause in two minutes and fix most cases in under half an hour with a screwdriver and a file.

Quick diagnosis: find where it misses

Close the door slowly while watching the latch bolt meet the strike plate (the metal plate on the door frame). You will see one of three things:

• The bolt hits above or below the strike plate hole → the door has sagged or risen. This is a hinge problem — see Fix 1.
• The bolt hits the plate but will not go in → the plate opening is too tight or slightly off-center. This is a strike plate problem — see Fix 2.
• The door will not even close far enough for the bolt to reach the plate → the door or frame has swollen (humidity) or something is physically blocking it — see Fix 3.

A fourth, sneakier case: the bolt goes in but pops back out when you push the door. That means the latch bolt itself is sticking — its spring is gummed up or broken. Skip to the latch section below.

What you will need

• Phillips screwdriver (and possibly a flathead)
• Metal file or a Dremel with a grinding bit
• 3-inch wood screws (to replace short hinge screws)
• Wooden golf tees or dowels + wood glue (for stripped screw holes)
• Pencil or lipstick (for the marking trick below)
• Fine sandpaper (120-grit) and a sanding block
• Optional: a sharp chisel and hammer for strike plate mortise work

Fix 1: Tighten and re-seat the hinges (the most common fix)

About 70% of doors that stop latching are sagging on loose hinges. Gravity pulls the door down over the years, the top hinge screws work loose, and the latch bolt ends up striking below the plate opening.

1. Open the door and check the top hinge. Grab the door by the handle side and lift gently. If you feel movement at the hinges, or you can see a gap widening at the top hinge, the screws are loose.
2. Tighten every hinge screw. Start with the top hinge — it carries most of the weight. If a screw just spins without biting, the hole is stripped: pull the screw out, dab wood glue on a wooden golf tee, tap it into the hole, snap it flush, and drive the screw back in. This gives the screw fresh wood to grip.
3. Replace one short screw per hinge with a 3-inch screw. Hinge screws from the factory are often only 3/4 inch long and bite into nothing but the thin door jamb. A 3-inch screw reaches through the jamb and into the wall stud behind it, pulling a sagging door back into position permanently. Do this on the top hinge at minimum; doing all hinges is better.
4. Test. Close the door. In most cases the latch now lines up and clicks home.

Fix 2: Adjust or file the strike plate

If the hinges are tight but the bolt still misses the plate opening by a hair, adjust the plate itself.

1. Mark the contact point. Smear a little lipstick (or pencil graphite) on the end of the latch bolt, then close the door firmly. The mark transfers to the strike plate exactly where the bolt hits.
2. If the mark is just above or below the opening: loosen the strike plate screws, shift the plate a millimeter or two toward the mark, and retighten. Often that is all it takes.
3. If the mark is on the edge of the opening: enlarge the opening with a metal file. File in the direction of the mark — a few strokes, test, repeat. Take off as little metal as possible; you want a snug fit, not a sloppy one.
4. If the plate needs to move more than a couple of millimeters: remove the plate, deepen or widen the mortise (the recessed pocket in the frame) with a sharp chisel, reposition the plate over the new spot, and secure it. Fill the old screw holes with glued golf tees first so the screws have something to bite.

Fix 3: Deal with a swollen door or frame

Doors swell in humid summer months and shrink back in dry winter air. If your door latches fine in January but not in August, this is your culprit — and it usually fixes itself.

1. Find the rub. Close the door and look for the shiny worn spot where it drags against the frame — usually the top corner on the latch side, or along the latch edge.
2. Mark it. With the door closed as far as it goes, draw a pencil line on the door edge where it meets the frame.
3. Sand or plane the high spot. Remove the door from its hinges (tap the hinge pins up and out with a nail and hammer) and lay it flat. Sand the marked area with 120-grit paper on a block, or shave it with a hand plane if the swelling is severe. Take off a little, rehang, test, repeat — you can always remove more wood, but you cannot put it back.
4. Seal the bare wood. This step matters: paint or seal the sanded edge. Unsealed wood absorbs moisture and will swell again next summer. A coat of primer and paint (or polyurethane on stained doors) breaks the cycle.

Do not overdo this fix in summer. If you plane off too much during peak humidity, you will have a rattling, drafty door all winter.

Fix 4: Free a sticking latch bolt

If the bolt lines up with the plate but will not spring out fully:

1. With the door open, press the bolt in with your thumb and let go. It should snap back out crisply. If it moves sluggishly or stays in, it is gummed up.
2. Spray a little silicone lubricant (not WD-40 for the long term — it attracts dust) into the latch mechanism and work the bolt in and out a dozen times.
3. If it still sticks, remove the two screws holding the latch faceplate on the door edge, slide the latch mechanism out, clean it with a rag, lubricate, and reinstall. Replacement latch assemblies cost under $15 at any hardware store and take 10 minutes to swap if cleaning does not work.

What this costs

Mistakes to avoid

• Planing a swollen door in peak summer. You will regret it in January when the gap whistles. Sand the minimum and seal the wood.
• Filing the strike plate opening into a crater. A loose, rattling latch is barely better than one that misses. File a little, test, repeat.
• Ignoring stripped hinge screws. Tightening a screw that spins in a stripped hole does nothing. The golf-tee-and-glue trick takes two minutes and actually holds.
• Forcing the door shut. Slamming a misaligned door cracks the frame, chips paint, and bends the latch. Fix the alignment instead.

Keeping it latched

• Once a year, check hinge screws and snug them up — five minutes prevents the whole problem.
• Keep exterior doors painted and sealed on all six edges (including top and bottom, which people forget). Sealed wood barely moves with humidity.
• If you live somewhere humid, a small dehumidifier near problem doors in summer noticeably reduces swelling.

Frequently asked questions

Why does my door latch in winter but not summer? Wood absorbs moisture from humid summer air and swells; dry winter air shrinks it back. This is normal. Light sanding plus sealing the bare wood usually ends the yearly cycle.

The latch clicks but the door still swings open. What is wrong? The bolt is not extending far enough into the strike plate — either the plate opening is too shallow, the door sits too far from the frame, or the latch spring is weak. Check that the bolt throws fully with the door open first.

Can a door not latching be a foundation problem? It can, but it is rarely the first explanation. Suspect settling only if several doors and windows stick at once, you see diagonal cracks above door frames, or the problem appeared suddenly and keeps getting worse. One door acting up is almost always hinges or humidity.

My strike plate screws will not stay tight. What now? The screw holes in the frame are stripped. Fill them with wood glue and golf tees (or dowels), let dry, trim flush, and re-drive the screws. For a permanent upgrade, use 3-inch screws that reach the wall stud.

When to call a pro

• Multiple doors and windows stick at the same time, or you see new diagonal cracks near frames — that points to foundation or structural movement, which needs a professional assessment.
• The door frame itself is rotted, split, or pulling away from the wall.
• You have adjusted hinges and the strike plate and the door still will not latch — a carpenter can rehang the door or replace the frame in about an hour.
• Any exterior door that will not latch is also a security issue — do not leave it unresolved overnight; a temporary fix is a longer strike plate screw or a door security bar until it is properly repaired.