Not generic marketing maths. The defaults come from live A2B campaigns for insulation, windows, solar, heating and construction businesses across Ireland & the UK.
Every A2B client gets a live dashboard in their CRM - cost per job and ROAS per service line, updated as jobs complete. The calculator is a preview; the dashboard is the real thing.
You don't have to trust a projection. Your first 10 leads in your local area are free - see real enquiries from real homeowners before you commit to anything.