Most agencies will tell you to do both. Of course they will. They sell both. But if you are a tradie, lawyer, dentist or local business owner with $2k to $5k a month to spend on marketing, doing both at half-strength usually means doing both badly. The right answer is almost always to start with one, dominate it, then layer the second.
Here is how I actually advise Adelaide businesses to choose, with no spin. I run both Google Ads and SEO campaigns, and I will happily talk you out of one if it is not the right fit.
The five variables that decide it
Forget the generic advice. Your decision comes down to five things:
- How fast you need leads: this week, or in 6 to 12 months?
- Your gross margin per customer: can you afford a $100 cost per acquisition?
- Search volume in your industry and city: are people actively searching for what you sell?
- How competitive your space is on organic results: are the SERPs dominated by directories or strong brands?
- How long you plan to be in business: 12 months or 12 years?
Run those through honestly and the answer usually becomes obvious. Let me walk through the trade-offs.
Speed: Google Ads wins, by a mile
Google Ads can deliver leads within 24 hours of launch. SEO takes 3 to 9 months to produce meaningful organic traffic, and 12 to 18 months to dominate competitive Adelaide service keywords like “electrician Adelaide” or “family lawyer Adelaide”.
If you launched yesterday, just bought a business, or have a cashflow problem this quarter, Google Ads is the only sensible option. Anyone who tells you SEO will fix your pipeline in 30 days is selling you a story. The mechanics simply do not work that fast. I dig into the realistic timeline in SEO vs Google Ads vs social.
Cost per lead: depends on your stage
People assume SEO is “free” because you are not paying for clicks. False. Quality SEO costs $1,500 to $4,000 per month in agency fees and takes 6+ months to produce volume. So your real cost per lead in month 6 might be $400. By month 18, that same investment might be producing leads at $40 each because traffic compounds.
Google Ads is the opposite. Cost per lead is high on day one ($80 to $200 for many Adelaide service categories) and gradually drops as Smart Bidding optimises and Quality Score improves. By month 6 it might be $50. But it never gets to $5 like mature SEO can.
Longevity and compounding: SEO wins, eventually
The day you turn off Google Ads, your traffic goes to zero. The day you stop investing in SEO, your traffic stays roughly where it is for 6 to 12 months before competitors catch up. That is the compounding magic of organic search: every blog post, backlink and on-page improvement keeps working long after you wrote the cheque.
I have clients whose original SEO investment from 2022 is still producing leads today with no additional spend. That is the closest thing to a marketing annuity you will find.
The honest decision framework
Start with Google Ads if you:
- Need leads in the next 30 to 60 days
- Have a clear, high-margin offer ($1,000+ per customer)
- Are testing a new service, location or audience
- Have a website that converts (or are willing to fix it)
- Have $2k to $5k+ per month in ad spend, plus management
- Operate in a category with strong search demand (plumbing, legal, dental, trades, accounting)
Start with SEO if you:
- Have stable cashflow and can wait 6 to 12 months
- Operate in a low-CPC industry where Google Ads economics are tough (some commodity services)
- Have great content potential (educational, technical, problem-solving)
- Want to build a long-term defensible asset
- Have a content angle competitors are ignoring
- Are in a regulated industry where ads are restricted (some health and finance verticals)
Do both if you:
- Have $5k+ per month for combined investment
- Are an established business with strong margins
- Want to dominate your city across all of Page 1 (paid + organic + map pack)
The trap most Adelaide businesses fall into
Splitting $2,500/month between SEO and Google Ads. You end up with an SEO campaign too small to gain traction and an ad budget too small to gather meaningful data. Both fail. Six months later you conclude “digital marketing does not work for my business” when really you just under-invested in both.
Pick one. Win it. Then layer the other once you have positive cashflow from the first.
What I actually recommend (most of the time)
For 80 percent of Adelaide service businesses I talk to, the right sequence is:
- Months 1 to 6: Google Ads (run by someone who knows what they are doing) plus a properly built website with conversion tracking and call tracking. Get cashflow positive from paid traffic.
- Months 4 to 12: layer in foundational SEO. Optimise the existing site, claim and optimise Google Business Profile, start publishing genuinely useful content monthly.
- Month 12+: continue Google Ads at a more efficient level, scale SEO investment using the cashflow paid is generating, build the long-term moat.
This sequence works because Google Ads gives you immediate signal on what people actually convert on. That data informs which SEO topics, pages and keywords to prioritise. Without it, you are guessing.
One more thing
The agencies pushing SEO-only or Ads-only based on a sales pitch rather than your actual situation are doing you a disservice. The right answer for your business depends entirely on your stage, margin and timeline. If you want a straight, no-pitch conversation about which to start with for your business, that is exactly what I do on a strategy call.
Book a free strategy call and we will work out which one (or both) makes sense for your situation. Flat-rate pricing, no lock-in contracts, no juniors. Or just call 0403 454 199.
Want to put this into action?
Book a free strategy call. We'll audit your current marketing and give you a clear action plan tailored to your business.