How restructuring a major US plumbing company's paid search campaigns — with no budget increase — cut cost per lead by nearly half and significantly improved lead quality within five weeks.
The company was running significant paid search spend but struggling with cost per lead. Leads were coming in, but at a cost that made the unit economics uncomfortable — and a good number of those leads weren't converting into paying customers.
The campaigns had been built broadly. Keywords were grouped too loosely, ad copy wasn't speaking to specific customer intent, and landing pages weren't doing enough to turn clicks into calls. Conversion tracking also had gaps, meaning the account was optimising towards incomplete data.
"The problem wasn't the budget — it was what the budget was doing. Too much reaching the wrong people, not enough converting the right ones."
The restructure focused on three interconnected levers: who we were targeting, how we were speaking to them, and whether we were capturing the full picture of what was working.
Within five weeks, cost per lead had fallen by 44%. Importantly, this wasn't achieved by simply getting fewer, cheaper leads — lead quality improved alongside the reduction in cost, because the targeting was now bringing in people who actually needed the service rather than casual browsers.
The offline conversion tracking improvements meant the account was now learning from real outcomes rather than just form fills, setting the campaigns up for continued improvement beyond the initial restructure.
Most lead gen accounts have significant room to improve. Let's look at yours together and find where the quick wins are.
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