Why showing you someone else's results is the oldest trick in the agency playbook

You've sat through the pitch before. The agency pulls up a slide deck. There's a roofing company in Texas that got 300 leads. A painting contractor in Ohio with a 10x return. Numbers in bold, logos on the screen. And somewhere in the middle of it, you feel your attention leave the room.

That's not skepticism. That's pattern recognition. And it's correct.

The proof problem nobody in the agency world wants to admit

When an agency shows you results from a different trade, they're asking you to do math they can't do themselves. The assumption baked into every generic case study is that ad performance transfers cleanly across industries. It doesn't.

A roofing lead and a mobile detailing lead are not the same object. The intent behind the search is different. The decision timeline is different. The average job value is different, which means the acceptable cost per lead is different. The objections a homeowner raises before booking are different. Even the geographic radius that makes a job worth driving to is different. Two contractors can run near-identical Meta campaigns and get results that don't resemble each other at all, purely because of what trade they're in.

An agency that shows you an LED lighting company's numbers when you run waterproofing isn't being dishonest, exactly. They're just demonstrating that they don't have proof that maps to your actual situation. And after you've already paid someone for results that never showed up, that gap reads exactly the way your gut tells you it reads.

Why burned contractors read generic proof as a red flag, not a green one

Here's what actually happens in the mind of a contractor who has already lost money to a bad agency. They're not evaluating the case study on its merits. They're scanning it for the tell.

The tell is: does this agency have any idea what it costs to get a real lead in my trade, in my market?

A 22x ROAS from a lighting company means nothing to a painter trying to decide if $400 a month will produce jobs. It's not the number that fails, it's the category. When the category doesn't match, the case study doesn't answer the question the contractor is actually asking. It answers a different question and hopes nobody notices.

One prospect in an ASN sales call made this explicit. He was running bottled water delivery, and when the conversation moved to case studies, he rejected an LED lighting example outright. His words: "It's just words to me. It's nothing substantial." He wasn't being difficult. He was being precise. He'd been through five other agencies before that call and he'd heard some version of the same pitch each time. The case study not matching his trade was the signal he'd learned to look for.

What niche-matched proof actually does differently

There's a case study from a rubber resurfacing company called Safe Step: 247 leads, $11 cost per lead, $2,800 in total ad spend. When that number was shown to a prospect in epoxy flooring, her response shifted. Not because the numbers were extraordinary on their own, but because rubber resurfacing and epoxy flooring are close enough that she could do her own math. She could estimate her average job value, divide it by $11, and see whether the unit economics worked for her business. The case study became a tool she could actually use.

That's what niche-matched proof does. It gives the contractor the information they need to run the calculation themselves, instead of asking them to trust a translation they have no way to verify.

The Safe Step result also has a second function. It signals that the agency has actually worked in a trade adjacent to theirs, which means they've already solved problems that would otherwise take months to figure out. What creative format works. What offer language converts. What radius makes sense for quoting jobs. A case study from a matched trade is proof of operational knowledge, not just proof of a good month.

What to actually look for when an agency pitches you

If you're evaluating a Meta ads agency and they show you case studies, ask one question before you go any further: do you have results from someone in my trade, or in something close to it?

Not "do you have results." Everyone has results. The question is whether those results came from a business that works the way yours does.

If the answer is no, that's not automatically disqualifying. New trades require a first client. But it changes what you should ask next: what specifically about my trade have you researched, and what assumptions are you making about cost per lead going in? An agency that's thought about it will have an answer. An agency that hasn't will pivot back to a generic deck.

The other thing worth checking is what the case study actually contains. A screenshot of a low CPL number is a starting point. What you want to know is: what was the cost per booked job, not just cost per lead? What ad format ran? What was the targeting radius? How many of those leads actually picked up the phone?

These questions separate agencies that ran one good month from agencies that understand what makes a lead worth anything in your specific trade. And for a contractor who's already paid for a promise that didn't hold, the difference between those two things is the entire ballgame.

What a genuine proof conversation looks like

The right agency will show you numbers from your trade or the closest adjacent one they have. They'll explain why that trade maps to yours. They'll give you enough information to check their math. And if they don't have a perfect match, they'll tell you that plainly and explain what they do have instead.

If you're at the point where you're willing to try Meta ads again but you want to see proof before you commit to anything, that's a reasonable place to start. ASN runs niche-matched case studies into every initial conversation for exactly this reason. If you want to see what's available for your trade before deciding anything, the contact page is the right place to start.