You don’t need a Mayfair media agency or a six-figure attribution model to know whether your billboard is earning its worth.
What you need is a plan for measuring results before your vinyl goes up, not a guessing game once it comes down.
For SMEs, billboard advertising can deliver exceptional local reach at a fraction of the cost of national TV or prolonged digital campaigns. But like any spend, it needs to be accountable.
Here are 5 practical, low-cost ways to prove your billboard is working.
1. Give it a dedicated phone number or landing page
The simplest fix is often the most powerful. A unique phone number or a bespoke URL (something like yourbusiness.co.uk/billboard) tells you precisely how many enquiries came from that one ad.
No expensive software required, just a call-tracking number or a UTM-tagged link. If the calls or clicks come in, the billboard is doing its job.
2. Use a QR code with a clear incentive
QR codes have shed their gimmicky reputation, especially with a British audience now well used to scanning for menus, parking and payments.
Add one to your billboard with a genuine reason to scan, such as a:
- discount code
- free consultation
- downloadable guide.
Track scans through a free QR generator with built-in analytics, and you’ve got hard data on engagement, not just visibility.
3. Ask new customers the direct question
This costs nothing but discipline. Train your team, or set up a simple form field at checkout or booking, to ask: “How did you hear about us?” Add “billboard” as an option and log every response.
Over a few weeks, patterns emerge fast — and you’ll know if that spend on that roundabout is actually converting passers-by into paying customers.
4. Watch your branded search volume
Billboards build brand recall even when people don’t act immediately.
Check Google Trends or your Google Search Console data for your business name and key terms in the weeks your campaign runs, compared with the weeks before.
A noticeable uptick in people searching for you by name is a strong signal the billboard is doing quiet, cumulative work, even without an instant click or call.
5. Compare footfall and sales, location by location
If you trade from physical premises, this is your most commercially honest metric. Track footfall or till transactions in the weeks the billboard is live against a comparable period beforehand — same days of the week, similar weather, no other major promotions running.
If you’re advertising near one branch but not another, compare the two directly. This approach cuts through noise and shows you real commercial impact.
The bottom line
Billboard advertising doesn’t need a big data team to prove its worth — it needs a clear question asked consistently.
Pick two or three of these methods, apply them from day one, and you’ll have the evidence to make your next campaign even sharper.
Looking to drive real footfall and local dominance?
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