The short answer
PPC rents the top of Google. SEO earns a spot you keep.
PPC fits a budget that needs calls this month, SEO fits a budget that can wait a few months for leads you don’t pay for per click, and most service businesses that can afford both should run both, starting with PPC while SEO builds. That’s the whole answer in one sentence. The rest of this guide explains why, and how to decide when you can only afford one.
PPC, or pay-per-click, means paid ads like Google Ads. You pay Google every time someone clicks, and your ad shows the day you turn it on. SEO, or search engine optimization, is the work that gets your website and Google Business Profile into the free results and the map listings. You pay for the work, not the clicks, and the results take longer to arrive but keep coming after the work is done.
Think of PPC as renting a billboard on the busiest road in town and SEO as buying the building. Renting is faster and you can stop anytime. Owning takes longer and costs more upfront, but the payments go toward something that keeps working.
Side by side
How SEO and PPC differ on cost, speed and control.
| SEO | PPC (Google Ads) | |
|---|---|---|
| How you pay | A monthly retainer for the work | Ad spend per click, plus management |
| Lithium price | $1,300 to $3,000 a month | From $500 a month plus ad spend |
| When results start | Technical fixes in about 30 days; rankings in 60 to 90 | Usually the first week |
| When you stop paying | Rankings fade slowly | Leads stop the same day |
| Control | Google decides rankings | You choose keywords, ads, hours and area |
| Best for | Steady leads that compound | Fast calls, new services, slow seasons |
The cost math works differently for each. With PPC, every extra lead costs roughly what the last one did, because you pay for each click. With SEO, the monthly cost stays about the same while the traffic grows, so the cost per lead tends to fall the longer it runs. That’s why SEO usually looks expensive in month two and cheap in month twelve.
Keep the bills straight when you compare proposals. An SEO retainer pays for technical fixes, local SEO, content, links and reporting. A PPC proposal has two parts: the management fee and the ad spend that goes to Google. A management fee by itself is not an ad budget.
Timing
PPC is fast. SEO is slower, then keeps going.
With Lithium’s SEO work, technical fixes usually start to show within 30 days, and local and long-tail rankings typically take 60 to 90 days. Google Ads usually starts producing calls in the first week. Those are typical timelines, not guarantees of a ranking or a lead count.
The difference shows up after month three. PPC delivers at roughly the same rate for as long as you pay. SEO keeps stacking: each page that ranks adds traffic on top of the last one, and revenue from SEO tends to compound from month four onward. A business that started SEO a year ago is often getting leads from searches it never paid a click for.
That’s also the risk with each. If you stop PPC, the phone goes quiet that day. If you stop SEO, rankings fade more slowly, but competitors who keep working will pass you.
If you can only afford one
Pick by how soon you need the phone to ring.
Start with PPC when
- You need calls in the next few weeks
- You launched or added a new service recently
- Your site doesn’t rank yet for anything that matters
- Your work is urgent, like emergency repairs
- You want to test which services and towns pay best
Start with SEO when
- You can wait a few months for results
- Clicks in your trade are expensive
- Your website and Google profile need work anyway
- You want leads that don’t stop when the budget does
- Competitors already outrank you in the map pack
One more check before either: your website. Both channels send people to it, and neither works if the site loads slowly, buries the phone number or doesn’t explain the service. If the site is the problem, fix it first. A Lithium website is typically $5,000.
Running both
Each channel makes the other one cheaper.
SEO and PPC work better together than apart. Your Google Ads search terms show which searches turn into calls in your area, so you know which SEO pages to build first. The service pages you build for SEO make better landing pages for your ads, which helps your ads match the search and can lower what you pay per click. And when you show up in the ads, the map pack and the organic results at once, you take up more of the page than any single competitor.
There’s no universal split. A common pattern for a service business is to lead with PPC for fast calls, start SEO at the same time, then shift budget toward SEO as rankings grow and keep PPC running for urgent services, new offers and slow-season gaps. Let your own cost per booked job by channel decide how the split moves.
Measure them separately. Use different tracking numbers for ads and organic, and count each customer once. One homeowner may click an ad, leave, then come back through a map listing a week later. If both reports claim that lead, your totals will be inflated.
Sarkinen Plumbing is a good example of both working together. After Lithium rebuilt its website, SEO and Google Ads, the company doubled its leads on the same budget, grew search visibility nearly 4X and saw a 27.37% Google Ads conversion rate against an average of about 5%. Compare Lithium’s SEO service and Google Ads service , or see more client results in our marketing benchmarks .
