Colorbond Fence Extensions Melbourne
A new upstairs window next door, a deck that now looks over your yard, or a fence that was always a little short: the fix is usually not a new fence. An extension adds 150 to 600mm to the top of what you have, using either a clip-on kit for small additions or a sleeve over the existing post for larger ones. The two things that decide which you need are the condition of your posts and the line at 2 metres, above which most Melbourne councils want a permit. This page is how extensions work, when they do not, and what the neighbour has to say about it.
Colorbond fence extension options
An extension puts more sheet and more wind load on posts that were sized for the original height. That is the whole engineering question. Up to about 300mm on posts that are sound, plumb and properly footed, a clip-on extension kit does the job: it fixes to the existing post tops, carries a short sheet and a new capping, and is a half-day per twenty metres. Beyond 300mm, or on posts that are borderline, a steel sleeve slides over the existing post and extends it, giving the taller panel a proper spine. Where the posts are already at or below soil level, rusted at the base or leaning, an extension is throwing money at a fence that is about to need replacing anyway, and we say so. Then there is the height itself: an extension that takes a side or rear fence past 2 metres needs a permit in most Melbourne councils, and any extension on a dividing fence is a change your neighbour is entitled to be told about.
Clips to sound existing posts. A short sheet and a new capping rail in the matched colour. The standard privacy fix.
A steel sleeve over each existing post extends it to the new height and takes the extra wind load. For larger additions or borderline posts.
Where posts are rusted at the base, leaning or too shallow, a new fence at the height you want is the honest answer.
See the colour on a real boundary, not a chip
Colorbond reads completely differently at fence scale than it does on a small sample. Tap a colour to wrap a real Melbourne backyard.
Colour names are BlueScope® Colorbond® trademarks. On-screen colours are indicative; we bring physical samples to your free measure.
Colorbond fencing cost Melbourne
What a standard residential run includes: genuine Colorbond® steel, posts in concrete and rails. We give you a firm, itemised price at your free on-site measure.
Technical specifications
Steel & coating
Dimensions & install
Colour & assurance
How a fence extension goes
1Check every post
We push, plumb and probe each post and look at the base for rust. This decides kit, sleeve or new fence, and we tell you which on the spot.
2Height, permit and neighbour
The new height is checked against the 2m line for your council. If the fence is shared, we prepare the notice for your neighbour.
3Colour matched on site
A current chip held against your faded sheets. You see the difference before ordering, not after.
4Kit or sleeves fitted
Kits clip to the post tops and take the short sheet. Sleeves slide over each post, are fixed, and carry the taller panel.
5Capping and hand over
A new capping rail runs the full length so the extension reads as one fence. Cut edges touched up in the matched colour.
We check the posts before we sell you an extension.
Installed by our own crews, guaranteed for a decade.
Not subcontracted, not a look-alike, genuine Colorbond® steel, fully insured, every time.
Every post, every time
An extension on a rusted post is a fence that comes down in the next big wind. We probe them all and say when a new fence is the honest answer.
The 2m line, checked
We look up your council's height rule before quoting, so a permit is on the quote and not a surprise.
Fade shown, not hidden
New sheets against a faded fence will not be identical. We hold the sample up so you decide with the difference in front of you.
Capping the full length
One continuous capping rail is what makes an extension look like it was always there.
Frequently asked questions
Straight answers on cost, colours and how Colorbond holds up.
Ask us anythingMost can, but the posts decide. Sound, plumb, properly footed posts take a 150 or 300mm kit. Borderline posts take a sleeve. Posts rusted at the base, leaning or set too shallow will not carry the extra wind load, and an extension on them is money spent on a fence that is about to need replacing.
Colorbond fencing across Melbourne
Inner East
Known for second-storey additions next door driving most extension calls.
Related Colorbond topics
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