How to Fix a Door That Won’t Close Properly

You push the door and it sticks. Or it swings but won’t latch. Or there’s a gap at the top you could slide a sandwich through. Doors that won’t close properly are incredibly common — houses settle, humidity swells wood, hinges loosen — and most fixes are simple once you diagnose the actual problem. Here’s how to fix a door that will not close properly, organized by what’s actually wrong.

Step 1: Diagnose Before You Fix

Close the door slowly and watch carefully:

• Where does it stick? Mark rub spots with chalk or painter’s tape — top, bottom, latch side, hinge side.
• Check the gaps: Look at the reveal (gap) around the door. It should be roughly even — about 1/8 inch. If the gap is wide at the top on the latch side and tight at the bottom, the door is sagging on its hinges.
• Check the latch: Does the latch bolt hit the strike plate, miss it, or go in but not catch? Lipstick or chalk on the latch bolt shows exactly where it strikes.
• Is it seasonal? Sticks in humid summer, fine in dry winter = wood swelling. Common, manageable.
• Check the hinges: Open the door and try to wiggle it — loose hinges are the #1 cause of sagging doors.

Fix #1: Tighten and Repair Hinges (Solves Most Sagging)

Try this first — it fixes the majority of door problems:

1. Tighten every hinge screw, both on the door and the frame side. Use a screwdriver, not a drill (drills strip these easily).
2. If screws spin freely (stripped holes), remove one, fill the hole with wood glue + toothpicks or a golf tee, let dry, trim flush, and re-drive. This gives the screw fresh wood to bite.
3. The long-screw trick: Replace one short screw per hinge (on the frame side) with a 3-inch screw that reaches the wall stud behind the frame. This single screw often pulls a sagging door back into alignment by itself — it’s the highest-leverage fix in door repair.
4. If the door still sags, you can slightly bend a hinge knuckle or add a thin cardboard shim behind a hinge leaf to adjust the angle.

If your hinges also squeak, our squeaky hinge fix covers lubrication and pin maintenance.

Fix #2: Adjust the Strike Plate (Latch Won’t Catch)

If the door closes but the latch misses the strike plate:

• Slightly off: File the strike plate opening in the direction needed — a few strokes with a metal file moves the catch point enough.
• More off: Unscrew the strike plate, chisel the mortise slightly in the needed direction, reposition, and reattach. Mark the new position with the lipstick test first.
• Door rattles when “closed”: The strike plate is too far out — bend its tab inward slightly with pliers, or move the plate in a hair.

Fix #3: Plane or Sand the Sticking Spot (Door Rubs the Frame)

When the door physically rubs:

1. Mark the exact rub area with chalk.
2. Remove the door (tap hinge pins out from below — one at a time is fine if you have help, or all three with the door supported).
3. Plane or sand only the marked spot — a hand plane or belt sander for significant rubbing, sandpaper for minor. Take off a little at a time; you can’t put wood back.
4. Seal the newly exposed wood with paint or polyurethane — raw wood absorbs moisture and swells again. This step is commonly skipped and commonly regretted.
5. Rehang and test.

For seasonal swelling, wait for the dry season if you can — planing a swollen summer door leaves gaps in winter. If you must fix it now, remove the minimum.

Fix #4: Address the Frame (When the Door Isn’t the Problem)

Sometimes the frame shifted, not the door:

• Loose frame: If the whole frame wiggles, drive long screws through the frame into the studs (pre-drill, countersink, fill).
• Settling house: If multiple doors recently started sticking and you see new cracks in walls, the house may be settling — consult a professional before forcing doors to fit a moving frame. See our load-bearing wall guide for when structural issues need expert eyes.
• Humidity control: A whole-house humidity level of 30–50% minimizes seasonal door drama.

Quick Fixes Worth Knowing

• Candle wax or soap on a rubbing spot — temporary but immediate relief
• Tighten the doorknob set screws — a wobbly knob can prevent latching
• Check for paint buildup — multiple paint layers on door edges add up; scrape/sand the edge back to spec
• Weatherstripping too thick — if you recently added it and now the door won’t close, that’s your culprit; use thinner stripping

Preventing Door Problems Long-Term

Most door issues are progressive — small misalignments become big ones over years. Annual 10-minute door maintenance prevents most of it: tighten all hinge screws (they loosen with vibration and seasonal movement), lubricate hinge pins yearly with white lithium grease or petroleum jelly, check the strike plate alignment (houses shift; a plate that worked for years drifts gradually), and touch up paint on door edges where it’s worn — exposed wood absorbs moisture and swells.

Control indoor humidity (30–50% year-round) — it’s the root cause of most seasonal sticking. A whole-house humidifier in dry winters and dehumidification in damp summers doesn’t just help doors; it protects wood floors, furniture, and your comfort too.

Address foundation and drainage issues that cause ongoing settling — doors that need re-adjusting every year are telling you the house is moving. Gutters, grading, and drainage are unglamorous but they’re what keep frames stable for decades. For repair technique references, Family Handyman’s door repair tutorials cover everything from hinge fixes to full pre-hung door installation.

The Bottom Line

To fix a door that won’t close properly: diagnose the exact issue (sag, latch miss, rub, or frame), then apply the matching fix — tighten hinges and use the 3-inch screw trick for sagging, adjust the strike plate for latch issues, plane minimally for rubbing, and address the frame if the door isn’t the problem. Most door issues resolve in under an hour with a screwdriver and patience. And while you’re at it, if the wall around the frame took damage from years of slamming, patch it up for the full restoration.