Ed Mazan ran an 8-person, 5-acre diesel shop in Chicago. His top customer carried 60% of the business. His second-largest had just walked, taking maintenance in-house. Revenue was sliding from $150K/mo into the low $120s. Six months later: his best month in seven years at $192K — top account dropped to 39%, six new $10K+/mo customers, plus a 26-truck meat-packing fleet and a 200-trailer leasing company.
Most shop owners with a big account know it's a problem — they've never put a number on it. The mental move that has to happen first: name your top customer's revenue share to the nearest 5%, or you haven't identified the risk.
Diagnosis without action is anxiety. The fastest way out is high-intent Google search. The phone rings the same day the ads go live — owner-operators and breakdowns Googling "heavy duty wrecker [city]" right now.
Every fleet relationship started as a breakdown call. The 26-truck meat-packing account began as one job. The difference between a shop that gets one job and a shop that gets the whole fleet is how it farms the first call.
Revenue was sliding from $150K → $130K → low $120s as the second-largest account walked and the top account quietly squeezed terms. Six months after Repair Lift turned on targeted Google Ads, the shop hit $192K — without adding bays, hiring techs, or changing pricing.
The top account's revenue didn't shrink. It stayed steady around $75K. The percentage dropped because the denominator grew. That's what a diversified pipeline looks like.
Campaigns built around HD repair and HD towing only. Separate ad groups for clutches, transmissions, DOT, roadside, fleet inquiries. Aggressive negatives filter junk before a click is wasted.
Every call recorded, tied to the keyword that triggered it, and graded — real HD customer or tire kicker? That data feeds the ad buyer weekly. Bad keywords die. Good ones get more budget.
Most diesel shops aren't maxed out — they're bored. Ed had 8 employees and 5 acres before we started. Capacity wasn't the problem. Visibility was.
"The shop was capable of handling the work. It just wasn't visible to the right buyers."