20 August 2026
How Much Does a Pylon Sign Cost?
How much does a pylon sign cost in Adelaide? The honest answer: there is no set price, because every pylon is engineered to its own site. Cost is driven by height, the structure and wind engineering beneath it, illumination, and installation. Gigantic Signs builds and prices each one from our Kent Town workshop.

We've been building signs for Adelaide businesses for over 30 years, and a pylon is one of the biggest single investments a business makes in its signage. If you're new to the format, our guide on what a pylon sign is covers the basics. This post is about the money: what drives the cost, why a quick online figure misleads, and how we reach a real number for your site. Every pylon we make is engineered and finished at our Kent Town facility.
What drives the cost of a pylon sign?
A pylon is a structure first and a sign second. It stands metres in the air on its own footing, so most of the cost lives in the engineering, not the graphics. The levers that move the price:
- Height and wind engineering -- the taller the sign, the more wind load it has to survive, and the heavier the steel and footing underneath it get. A 6-metre roadside pylon and a 10-metre highway pylon are different structures, not the same sign scaled up.
- Footings and foundations -- a pylon is held up by an engineered concrete footing sized to the sign and the ground it sits in. Poor soil, a sloped site or a tight setback all change the footing, and it's a big part of the build.
- Illumination -- an illuminated pylon carries faces, LEDs and drivers. More faces and larger faces mean more lighting hardware, and the LEDs and driver are the parts that wear, so quality here shapes both price and running life.
- Number of faces and tenants -- a single-business pylon is simpler than a multi-tenant directory with a stack of changeable panels. More panels, more fabrication.
- Council approval -- a pylon almost always needs planning approval, and that process carries its own time and cost before any steel is cut (more below).
- Installation -- getting a multi-metre structure into the ground usually means a crane, sometimes traffic management on a busy road, and a crew for the day. Site access drives this more than people expect.
- Removing an old pylon -- if there's an existing sign to come out first, that's a separate job with its own crane, disposal and make-good on the ground.
This is why a "cost per square foot" figure or a national average tells you almost nothing. Two pylons the same size can price very differently once height, footing, illumination and site access are counted.
Fabrication vs installation: where the money goes
It helps to split a pylon into two costs, building it and installing it, because they're separate jobs with separate risks.
- Fabrication is the workshop time. A large illuminated sign is roughly a week of work at our Kent Town facility -- cutting and welding the frame, fitting the faces, wiring the LEDs and drivers, and finishing it so it holds up in the Adelaide sun and wind.
- Installation is often a single day, but a demanding one: a crane to lift the structure onto its footing, a crew, and traffic control if it's near a road. When a sign can be pre-mounted in the workshop and craned up in one lift, install is quick. When it has to be assembled on site, that can turn one lift into two and stretch the day.
The illuminated hardware matters long after install, too. On a big sign the LEDs can run for well over a decade, but the driver that powers them has a much shorter life, and a failed driver can take a whole section dark. We design pylons so those parts can be reached and replaced, because on a sign this size the real cost isn't only the build, it's the maintenance. More on component life in our guide to how long illuminated signs last.
Does a pylon need council approval?
In almost every case a pylon needs planning approval before it goes up, and that approval is a real line in your budget and timeline, not an afterthought. Rules vary by council and by where the sign sits, so we won't guess yours here. Start with whether you need council approval for a sign in SA, and if your pylon is large or roadside, our guide on permits for a billboard covers the bigger end. We handle the sign side of approval as part of the job.
How to get a real number for your site
Because a pylon is engineered to its location, the only accurate price comes from looking at your site. For a big or complex job -- a tall pylon, a tricky footing, or removing an old structure -- we survey before we quote, so footing, access and crane are real numbers rather than assumptions. Here's how to get moving:
- Know your basics -- rough height you're after, single-business or multi-tenant, illuminated or not, and whether there's an existing sign to remove.
- Have your site in mind -- where the pylon will stand, how a crane would reach it, and whether it's on or near a busy road. This drives the install side.
- Talk to us -- we'll arrange a survey, engineer the structure to suit, and price fabrication and install together.
Because a pylon isn't a fixed catalogue product, we don't price it through our instant online tool the way we do smaller signs. For other signage you can price today, our quote tool handles the store-able products, and the install side of a big project is covered in our guide to sign installation costs in Adelaide.
A real Adelaide example
We built a large illuminated sign for an Adelaide business where the install told the whole story. Fabrication ran about a week in our Kent Town workshop -- frame, faces, LEDs and drivers built and tested before it left the floor. The lift was meant to be a single clean one, but a small measurement mismatch on the building meant the pre-made rails no longer fit, so the piece had to be assembled and fixed in place on site. One lift became two, and the day stretched. Same sign, but the cost shifted the moment the site did. That's why we survey before we quote a pylon: the structure and the install are where the surprises live.
Frequently asked questions
Why can't you just give me a price for a pylon sign?
Because every pylon is engineered to its own height, footing and site. A published figure would either be so wide it's useless or plain wrong for your job. A quick survey gets you a real number instead of a guess.
Does an illuminated pylon cost a lot more?
Illumination adds faces, LEDs and drivers, so yes, an illuminated pylon costs more than a non-illuminated one, and it carries some running and maintenance cost over its life. For a roadside sign seen after dark, it's usually worth it.
Do I pay extra to remove my old pylon?
Usually, yes. Taking an existing pylon out is a separate job with its own crane, disposal and ground make-good. We can quote removal and the new sign together.
Get a real figure for your pylon
A pylon is too big a decision to run off a guessed number. The best next step is a quick chat about your site so we can survey, engineer and price it properly. Call our Kent Town team on (08) 8362 5455, or get in touch. For smaller signage you can price today, jump on our quote tool. Thirty years on, we still build every Adelaide pylon to stand up and stand out -- GIGANTIC.
