Garden Gate Latch Rusted? Here's How to Replace It
In this quick project, I replaced a rusted-out garden gate latch with a galvanized one that won’t corrode again anytime soon. It’s a simple job, and in this post I’ll show you what comes in the pack, the tools you'll need, and how to fit it properly—even if the old screws are totally knackered.
What You Get in the Pack
Most standard gate latch kits come with:
A latch and arm
Six galvanized screws
The key thing here is that the screws and latch are galvanized, so they won’t rust out like the old one.
Tools You'll Need
Impact driver or screwdriver
Phillips bit
Optional: a bradawl or small drill bit for marking
Step-by-Step: Removing the Old Latch
First up, I tried using an impact driver to remove the old screws, but thanks to years of rust, they were soft and stripped easily. If yours are the same, use some leverage or you might be able to back the screws out carefully with pliers or a flathead screwdriver.
If the screw heads are totally gone, you might need to dig them out or drill around them.
Installing the New Latch
Start by checking the placement of the new latch. You can do this by eye, but I’d recommend marking it with a pencil. On my gate, I had to line it up between the horizontal slats so the arm would meet the latch cleanly.
Don’t reuse the old screw holes. They’re likely too loose, and the screws won’t bite properly. Instead, drill fresh pilot holes to get a solid fix.
Attach the latch first using four screws, then line up the arm. Take care not to overdrive the screws—it's easy to strip the heads, especially when using an impact driver.
If it’s freezing cold (like it was when I did this), you can just use a screw to mark the pilot hole, but a bradawl would be easier and faster if your fingers aren’t frozen!
Choosing the Right Replacement Latch
Not all gate latches are equal. The most important thing is material — avoid plain steel as it will rust out just like your old one. Go for galvanised or stainless steel. Galvanised is fine for most garden gates and significantly cheaper. Stainless is worth the extra cost if the gate is exposed to salt air or gets a lot of rain.
What If It Doesn't Go Back Together Neatly?
Latch not aligning with the catch — loosen the catch screws slightly, adjust the position until the arm drops into it cleanly, then retighten.
Screws won't grip in the old holes — don't try to force it. The wood fibres are compressed and won't hold. Move the latch slightly so you're drilling into fresh wood, or fill the old holes with a wooden matchstick and wood glue, let it dry fully, then screw into that.
The arm is too short to reach the catch — you may have the wrong size latch. Check the measurement between gate and post at latch height before ordering a replacement.
One Thing to Do Every Year
A gate latch lives outside in all weathers. Once a year, put a small dab of light grease or 3-in-1 oil on the moving parts — the pivot point and the catch. Takes thirty seconds and will extend the life of the latch significantly. While you're at it, check the screws are still tight.
If Fix Make helped you sort this one out, ☕ a coffee always goes down well.
Job Done
And that’s it—one new gate latch fitted and working smoothly. Simple, quick, and should last for years now that it’s properly rust-proofed.
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