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How Much Should HVAC Companies Spend on Google Ads?

Based on 2025 benchmark data, here's what HVAC company businesses should budget for Google Ads—and what you can expect in return.

Recommended Budget for HVAC Companies

$2,500

Minimum Monthly

~17 leads/month

$3,000-$7,000/month (seasonal flex)

Recommended Range

Best ROI sweet spot

$425

Cost Per Customer

30% close rate

Budget Math for HVAC Companies

Average CPC$9.68
Conversion Rate6.56%
Cost Per Lead$127.74
Typical Close Rate30%
Cost Per Customer$425

At $127.74 CPL and 30% close rate, each customer costs $425 to acquire. Average repair job = $350. Breakeven requires upselling maintenance plans or replacement systems. Focus budget on replacement keywords (new AC, new furnace) where average ticket is $6,000-12,000—one sale covers 15-20 acquisition costs.

Seasonal Budget Adjustments for HVAC Companies

Peak Months (Increase Budget)

June, July, August, December, January

Consider 20-50% budget increase

Slow Months (Conserve Budget)

March, April, October, November

Reduce or reallocate spend

Allocate 60% of annual budget to peak seasons (June-Aug for cooling, Dec-Feb for heating). Shoulder seasons (March-May, Sept-Nov) should get 15% for maintenance campaigns only.