How to Get a 200% Return on Your Google Ads: A Simple Tool for Contractors

Achieving a strong return on Google Ads spend isn't magic, it's a straightforward calculation applied consistently, and contractors who build this simple framework into their monthly routine consistently outperform those who judge campaigns purely on gut feeling.

The Core Calculation

Total revenue from booked jobs traced to Google Ads, divided by total ad spend, gives a clear return figure, and a 200% return means every dollar spent generated three dollars back, a meaningful and achievable target for most home service categories.

Why Most Businesses Never Calculate This Correctly

Without call tracking and CRM tagging by source, businesses can't actually trace revenue back to ad spend, leaving them to judge campaigns on cost per click or cost per lead alone, numbers that say nothing about actual profitability.

Building the Simple Tracking Tool

A basic spreadsheet with columns for monthly ad spend, leads generated, leads booked, and average job value produces a working return calculation without requiring expensive software, provided the underlying source-tagging discipline is in place.

The Monthly Return Calculation

• Total ad spend for the month.
• Number of leads generated and their source confirmed.
• Number of those leads that became booked, paid jobs.
• Total revenue from those booked jobs, divided by ad spend.

Levers That Improve the Return

Faster response time, better landing page conversion, and sharper negative keywords all improve the return without necessarily increasing spend, meaning the path to 200% often runs through efficiency improvements rather than a bigger budget.

Don't Ignore Lifetime Value

A customer acquired through Google Ads who becomes a repeat customer or refers others generates return well beyond the first job, and factoring in even a conservative estimate of repeat business often reveals the true return is higher than the first-job number alone suggests.

Watch the Return Trend Over Time

A single month's return can be noisy, especially for lower-volume accounts, and tracking the trend across several months gives a more reliable picture than reacting to any one month's number in isolation.

Use the Tool to Make Budget Decisions

Once the return is reliably above target, increasing budget is a straightforward decision backed by data, while a return consistently below target signals a need to fix conversion or targeting before spending more, not after.

Share the Number With Whoever Manages the Account

Whether managed in-house or by an agency, holding the campaign accountable to this specific return figure, rather than vaguer metrics, keeps everyone focused on what actually matters to the business's bottom line.

Apply the Same Math to Every Channel

Once the return calculation is built for Google Ads, applying the identical framework to every other marketing channel, LSA, referrals, purchased leads, allows for a genuinely fair, apples-to-apples comparison across the entire marketing budget.

Small Businesses Can Build This Without Software

A basic spreadsheet updated monthly is entirely sufficient for most home service businesses, and the discipline of consistently filling it in matters more than any sophisticated attribution software a larger company might use instead.

Revisit the Target as the Business Matures

A 200% return target that made sense for a smaller operation may become either too conservative or too ambitious as the business's margins and capacity change, making an annual review of the target itself worthwhile.

Don't Let a Great Month Cause Complacency

A single strong month above the 200% target doesn't mean the work is done, since market conditions and competitor behavior shift constantly, and the businesses that sustain a strong return keep monitoring and adjusting rather than assuming past performance guarantees the future.

The same return calculation applies cleanly to exclusive leads, where a fixed cost per lead makes the return math especially simple to track.