A fence gate that does not close fully is a daily annoyance and a real security issue if you have young kids or a dog that would take full advantage of a gap. The good news is that most fence gate problems come from the same three causes: hinge sag that has let the gate drop, latch misalignment that has moved the catch out of position, or post rot that has allowed the whole structure to shift. All three are fixable without replacing the gate or calling anyone.
Diagnose Before You Fix
Open the gate and observe carefully. Does it hang level when open, or does the free end sag downward? Sag is a hinge problem. Does it swing freely but the latch misses the catch by an inch? That is a latch height problem. Does the gate contact the frame on one side and gap on the other? That is a post movement problem. Knowing which category you are dealing with determines where to spend the thirty minutes.
Hinge Sag
A sagging gate almost always comes from loose hinge screws. Over time, the wood fibers around the hinge screws compress and the screws back out slightly. The gate drops at the free end, and the latch either misses the catch or the gate starts dragging on the ground.
The fix depends on how much the screws have backed out. If they are only slightly loose and still engage when tightened, drive longer screws through the existing holes into fresh wood behind the original screw depth. Three-inch exterior screws through a hinge designed for one-inch screws reach into the post or frame stud behind the fence board and hold firmly. If the holes are too stripped for any screw to catch, fill them with wood glue and toothpicks or wooden golf tees cut flush, let them dry overnight, then drive new screws through the filled holes.
A tension turnbuckle wire kit, like this one, provides an additional anti-sag solution for larger or heavier gates that continue to sag despite hinge tightening. The diagonal tension wire runs from the top of the hinge side to the bottom of the latch side and prevents the corner-to-corner sag that causes most gate drop.
Latch Misalignment
If the hinge is solid but the latch mechanism does not engage because the catch is in the wrong position, the fix is either moving the catch or adjusting the latch height. Most gate latches have some vertical adjustment built in. Loosen the mounting screws on the catch side and slide it to align with the latch. Test the closure and tighten when the engagement is clean.
If the catch has no adjustment range, unscrew the catch plate from the gate post and move it up or down, filling old holes with wood putty and drilling new pilot holes at the correct position. This takes about fifteen minutes and a small amount of exterior wood putty.
Post Movement
When a gate contacts its frame on one side and leaves a gap on the other, the posts have shifted. This is a more involved fix, usually requiring bracing or resetting the post. Check the post footing by digging around the base if it is set in concrete. A post that has frost-heaved or rotted at the base will need to come out and be reset. A post that has shifted only slightly can sometimes be repositioned by digging around it, pressing it back into position, and packing the soil firmly, then adding a post brace kit while the repositioning holds.
If the post itself has rotted at or below the ground line, a post repair kit using a concrete anchor and a new post section attached alongside the existing one extends the post life without a full replacement. This approach is covered in the fence post repair guide.
Gate repairs pair well with the broader spring maintenance checklist inspection. The critical repairs list includes fence integrity as a safety item when young children are in the yard. The temporary fix cost guide is relevant because a gate shimmed shut rather than properly repaired typically costs more within six months. The seasonal checklist and the new homeowner repair list both include fence and gate inspection as foundational tasks.
Most fence gate problems that appear suddenly are issues that developed slowly over one to two seasons. Hinges that were tight three years ago loosen gradually. Posts that were plumb when set can shift by a quarter inch per year in expansive soil. Checking the gate hardware annually, tightening hinges, and clearing debris from the latch mechanism catches these issues at the ten-minute fix stage before they become the three-hour repair stage. The small fixes cost guide covers exactly this progression.
The Fix That Pays for Itself
Home repairs catch a lot of people off guard because the right skills are scattered across too many places. The Home Repair Starter Kit is $17 and covers the repairs every homeowner faces: the ones contractors charge $200 for and take twenty minutes to do yourself. Instant download on Gumroad.
