How to Fix a Gate That Won’t Latch Properly
How to fix a gate that won't latch properly: hinge post, hinges, latch, and when the post is the problem.

A Denver homeowner's guide to a gate that won't latch: hinge post, hinges, latch, and when the post is the problem.
Find the real cause first
A gate that will not latch has one of three causes: the gate has sagged, the latch has moved, or the post has moved. Check the gap at the top and bottom of the latch side. If the gap is wider at the top, the gate has sagged toward the latch. If the gap is even but the latch misses, the latch or strike has shifted. If the whole gate leans, the hinge post is the problem.
In Denver, the hinge post is the usual suspect. Posts set shallow in expansive bentonite clay heave in freeze–thaw, and posts rotted at the ground line lean a little more every winter. No latch adjustment holds on a post that moves.
The DIY fixes that work
Start with the hinges: tighten every screw, and replace stripped screws with longer ones that bite into sound wood. Adjustable hinges can lift a sagging gate back to square. A diagonal brace — from the bottom hinge side to the top latch side — stops a wood gate racking under its own weight.
Then the latch: loosen it, re-align it to the strike, and re-tighten. If the latch is bent or the mechanism is worn, replace the hardware rather than forcing it. Work in dry weather, and check the gate again after the next freeze.
When it is the post
If the hinge post is rotted at the base or heaved out of plumb, the fix is a new post set deep in concrete below the frost line, then re-hanging the gate with adjustable hinges and a diagonal brace. That is a bigger job than a latch adjustment, and it is the one that actually lasts.
If the gate frame itself is racked or the wood is split at the joints, a new gate on the sound posts may be the answer. Call (720) 697-2456 and we will talk through whether a repair or a new gate fits.