Corston Architectural Detail: Launching Demand Gen to unlock significant blended revenue and ROAS growth
Corston Architectural Detail had seen strong Demand Gen results in the UK, but their French market remained heavily weighted toward Search and PMAX. Without a structured scaling framework, launching a new upper-funnel channel felt risky.
Corston Architectural Detail had seen strong Demand Gen results in the UK, but their French market remained heavily weighted toward Search and PMAX. Without a structured scaling framework, launching a new upper-funnel channel felt risky.
Fospha and Google's Q4 Peak Support Program provided the catalyst to launch Demand Gen in France, with Fospha delivering spend plans for incremental scaling and Google providing campaign setup best practices. The channel was introduced gradually, scaling as results materialized.
The Results:
After introducing Demand Gen, Corston's Google mix drove 61% more new conversions at 13% improved CAC YoY (Q4 2025).
Overall Q4 YoY improvements were incredibly strong: 47% greater revenue, 69% more new conversions, 24% improved CAC. At a blended level, this translated to +23% revenue and +11% ROAS uplifts YoY.
