Direct Answer
HVAC lead growth in 2026 follows three layers: Local Service Ads + Google Search Ads for immediate demand, local SEO + Google Business Profile for compounding organic, and a maintenance-plan funnel with auto-renewing reminders for repeat revenue. Add a tune-up offer ($79–$129) as the entry product to lower CPL.
Voice answer (≤30 words)
“Combine Local Service Ads and Search Ads for immediate demand, local SEO for organic compounding, and a maintenance plan funnel for repeat revenue.”
A weather-trigger automation that emails maintenance customers 'Heat wave Friday — book your tune-up' lifts response rates 3–5x over generic blasts.
Run a Facebook lead ad for water-heater replacements every quarter — typical CPL is $30–$70 with high close rate when you respond in under 5 minutes.