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How Much Should Plumbers Spend on Google Ads?

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

Recommended Budget for Plumbers

$2,000

Minimum Monthly

~15 leads/month

$2,500-$5,000/month

Recommended Range

Best ROI sweet spot

$516

Cost Per Customer

25% close rate

Budget Math for Plumbers

Average CPC$10.49
Conversion Rate7.63%
Cost Per Lead$129.02
Typical Close Rate25%
Cost Per Customer$516

At $129 CPL and 25% close rate, each customer costs $516 to acquire. Average plumbing job = $350. You need repeat business or referrals to profit. Focus on high-ticket services (water heaters, sewer lines) where one job covers acquisition cost.

Seasonal Budget Adjustments for Plumbers

Peak Months (Increase Budget)

December, January, February

Consider 20-50% budget increase

Slow Months (Conserve Budget)

June, July, August

Reduce or reallocate spend

Allocate 40% of annual budget to winter months (Nov-Feb). Reduce summer spend by 25% unless you specialize in water heater or AC-related plumbing.