"Does this fence need replacing, or can it just be patched up?" is a question we get asked a lot, usually when a fence is looking tired but the owner isn't sure whether that's a cosmetic problem or something more serious. The honest answer depends on what's actually failing, the palings themselves, or the structure underneath them.
When a repair genuinely makes sense
If the posts are still sound, straight, and firmly in the ground, and the rails they're attached to are solid, then damage limited to a handful of palings, a section knocked by a falling branch, general wear in one spot, or a gate that's dropped, is usually a straightforward and cost-effective repair rather than a reason to replace the whole fence. There's no need to replace a structurally sound fence over a few tired boards.
The signs that point to full replacement instead
A few specific signs tend to mean a fence has reached the end of its useful life rather than needing another patch-up (drawing on general guidance from Handyman Connection's fence-replacement guidance):
Leaning. A fence that's visibly tilting means the posts or their footings have failed, which a cosmetic repair to the palings won't fix.
Rot. Once timber starts rotting, the damage doesn't reverse, and it tends to spread to whatever it's in contact with, including rails and posts.
New holes that weren't there before. Ordinary knotholes in timber are normal, but fresh holes usually mean pest damage working through the timber from the inside.
An increasing number of missing or damaged palings. One or two is a repair. A fence that's steadily losing more boards over time, especially alongside other damage, often costs more to keep patching than to replace outright.
Splintering. Small splits that keep growing into cracks are a sign the timber itself is failing structurally, not just cosmetically.
Age is its own signal
Even without obvious damage, the materials a fence is built from have a realistic lifespan. Treated pine paling typically lasts around 15 to 20 years, while hardwood paling generally holds up for 20 to 30 years (general figures via whatsthedamage.com.au). A fence approaching or past that age range is a reasonable candidate for replacement even if it's not showing dramatic failure yet, since the materials are simply wearing out.
What it costs either way
As a general guide, fence repairs (replacing palings or rails on an otherwise sound fence) typically run around $60 to $150 per metre, while post replacement sits around $140 to $300 per post. Full replacement with treated pine paling generally runs $80 to $190 per metre, and hardwood paling $100 to $190 per metre, with old fence removal and disposal adding roughly $15 to $45 per metre on top (general figures via whatsthedamage.com.au). These are general market ranges rather than a quote, since the real number depends on the site, access, and exactly what's being replaced.
A real example
We recently did exactly this for a property in Caloundra West, where the existing paling fence had reached the point where it was no longer giving the owners the privacy they wanted. Rather than patching it up, we removed the old palings and rails, kept the sound posts and brick wall, and reinstalled a new timber paling fence at a greater height along the same boundary, a case where full replacement was the better outcome than ongoing repair, and it also gave the owners the chance to fix a height and privacy issue the old fence couldn't solve anyway.