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Lead Grading

Lead Grading Case Study

From 0.1x to 3.8x ROAS on Google Ads.
In Two Weeks.

Independent HVAC Contractor · Northeast U.S.

An independent HVAC contractor was spending nearly $8,000/month on Google Ads with almost no measurable return. Two weeks after acting on SearchLight Lead Grading data, their Google Ads ROAS jumped from 0.1x to 3.8x.

Google Ads ROAS
0.1x
3.8x
+3,700%
Book Rate
~20%
41.94%
+99.81% vs prior period
Closed Revenue (21 days)
Negligible
$30,050
+1,547% vs prior period

The Situation

Spending Money on Google Ads With Almost Nothing to Show For It

An independent HVAC contractor in the Northeast was running Google Ads with a return that barely registered. Their agency reported conversions were coming in, but the phones were ringing with calls that had nothing to do with their services.

The owner knew something was off. But without visibility into the quality of each conversion, every budget conversation was guesswork. The agency couldn't see the problem. The office wasn't flagging it. The data looked fine on paper.

"Nobody that's answering the phone is saying, hey, we're getting a lot of phone calls for different companies and they're just hanging up. That's infuriating me right this second."

Owner, Independent HVAC Contractor

"I've had this conversation a couple of times with [the agency], and I'm under the impression, and so are they, that this is not an issue. So there's something that you guys are able to track that they were not able to track."

Contractor Owner

What Lead Grading Found

65% of Google Ads Conversions Were Unbookable

Within the first 30 days on Lead Grading, SearchLight analyzed every inbound conversion from Google Ads. The data painted a clear picture of where the money was going.

01
Broad Match Triggering Competitor Names
Google Ads was running broad match keywords, causing ads to trigger on competitor searches. Customers were calling thinking they reached a different company entirely.
02
Wrong Number Calls Dominating Volume
"Wrong number" was one of the top unbookable reasons. People clicked the ad, called, realized it wasn't the company they wanted, and hung up. Every one of those calls was paid for.
03
After-Hours Calls Not Being Booked
A third-party answering service was handling after-hours calls but failing to book bookable leads. The owner had no visibility into this until Lead Grading flagged the pattern.
04
Search Partners Network Generating Spam
Google's Search Partners Network was enabled, driving low-cost but almost entirely spam traffic. Cost per click was $4 vs $25 on Google Search proper, a quality indicator the agency missed.

What Happened Next

Data-Driven Recommendations, Implemented in Days

The SearchLight team reviewed the Lead Grading data with the owner and his team, then provided specific, actionable recommendations to the agency.

01
Remove Broad Match
Switched to phrase match and exact match to stop ads from triggering on competitor names and irrelevant searches. Immediately eliminated the largest source of unbookable calls.
02
Add Negative Keywords Weekly
Established a weekly cadence of reviewing search terms and adding negatives for competitor names, job seekers ("HVAC hiring"), and irrelevant services.
03
Establish a Bid Schedule
Set a sensible bid schedule to reduce spend during hours when the answering service was failing to book. Shifted budget toward hours with better conversion quality.

Additional recommendations: Turn off Search Partners Network, switch geo-targeting from radius to zip codes for spend-by-zip reporting, and address CSR handling of after-hours leads with the answering service.

The Result

Two Weeks Later: 3.8x ROAS on Google Ads

The agency implemented the recommendations. Within two weeks, the account transformed.

Google Ads ROAS
Before
0.1x
After (2 weeks)
3.8x
Book Rate
Before
~20%
After (2 weeks)
41.94%
Closed Revenue (April 1-21)
$30,050.19
+1,547% vs prior period

Why It Worked

The Agency Couldn't See It. Lead Grading Could.

The advertising agency reported that conversions were coming in and there were no issues. They weren't wrong about the volume. They were wrong about the quality.

Without listening to every call, there was no way to know that 65% of those conversions were wrong numbers, competitor lookups, spam, and calls the answering service failed to book.

Lead Grading made the invisible visible. In a single review session, the owner, his team, and SearchLight identified the exact problems, the specific fixes, and who needed to implement them. Two weeks later, the numbers spoke for themselves.

What Lead Grading Revealed

65% unbookable rate on Google Ads, invisible to the agency
Specific competitor names triggering ads (broad match root cause)
After-hours answering service failing to book legitimate leads
Spam traffic from Search Partners Network inflating conversion counts
CSR team not flagging the problem to ownership

See It For Yourself

What Would Lead Grading Find In Your Google Ads?

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