Scaling Google Ads: why the answer is further up the funnel

I see it time and time again. Clients come to me with the same question:

“Our costs are rising and our ROAS is falling. What can we do?”

The honest answer is rarely the one they're hoping for, and in the short term it can feel uncomfortable. It's simple in principle: invest further up the funnel.

PPC has been a remarkably consistent growth channel over the past decade, and for good reason. It captures demand efficiently and delivers measurable returns. But many businesses have become so focused on ROAS that they've lost sight of the bigger picture.

Instead of measuring success by customer acquisition cost or true return on investment, budgets get concentrated in the campaigns that already drive conversions: brand terms, high-intent keywords, remarketing.

At first, this works brilliantly. Over time, those campaigns saturate. Volume stops growing. CPCs rise. Incrementality declines. The campaigns that once drove profitable growth start to erode margin.

The instinct is to double down and push more budget into struggling bottom-of-funnel activity to protect ROAS. That is usually the worst thing you can do.

From harvesting demand to creating it

This is the point where the focus needs to shift from harvesting existing demand to creating new demand.

Rather than forcing efficiency from campaigns that have peaked, invest in brand-building and upper-funnel activity. Broaden your paid media mix and support it with wider growth channels: a better website and conversion experience, digital PR and SEO, a stronger email strategy, and consistent visibility across paid social, video and discovery.

These channels don't work in isolation. Together they increase familiarity, grow branded search demand, expand remarketing pools and lift conversion rates across the whole account.

Give it time

Further up the funnel, returns may not show immediately in last-click ROAS. Costs may look higher, and performance may feel less comfortable.

Over time, the impact becomes clear. Brand campaigns get cheaper. Conversion rates improve. High-intent search regains headroom to scale, and growth becomes sustainable again.

At that point it no longer matters which channel delivers the final click. What matters is that the business is growing profitably as a whole.

Yes, the initial investment may be higher, and you may need to move budget away from campaigns that feel safe. In the long run, that's what protects performance, because waiting until ROAS collapses and volume disappears is almost always too late.