Why Shared Leads Cost You More Than You Think: The Real Math

Most tradies measure lead cost wrong. They look at the price per lead, $30, $50, $80, and judge whether a platform is good value based on that number. That's the wrong unit. The only number that matters is cost per won job. Once you measure that way, shared lead platforms look very different to the way they're sold.

This piece walks through the actual math, using realistic Australian numbers. The point isn't to bury shared platforms. The point is to give you the right calculation so you can decide whether the cheap lead is actually cheap.

The conversion math nobody talks about

Shared lead platforms quote you a per-lead price. Behind that price is one assumption they don't put on the marketing page: each lead is also being sold to 3 or 4 other tradies. Once you understand that, the conversion math is straightforward.

If a homeowner gets four quotes for the same job, on average you have a 25 percent chance of winning, even if all four tradies are equally good. That's the maximum, not the average. In practice, the homeowner usually picks the cheapest quote, so if you price properly, your real win rate sits below the statistical average.

Now compare that to an exclusive enquiry. The homeowner has rung one tradie, you. There's no other quote in their inbox right now. Your job is no longer to beat three competitors on price. It's to be the right tradie, communicate well, and book the job. Conversion rates on exclusive qualified calls usually sit between 40 and 60 percent.

Same lead. Same homeowner. Same trade. Different conversion rate, because of the number of tradies in the mix.

Worked example: a $40 shared lead

Let's run the numbers on a typical job. A homeowner posts a fencing quote request on a shared lead platform. The platform sells the lead to four fencers in the area at $40 each. That's $160 of revenue for the platform on one job.

You buy one of those leads. Here's what it actually costs you per won job.

The cheap-looking $40 lead is really a $200 customer acquisition cost once you account for the four jobs you didn't win.

Now run the same numbers on an exclusive enquiry. An exclusive network charges more per lead because the lead isn't being resold, but it converts at a much higher rate.

Same cost per won job, on paper. But here's where the calculation diverges in your favour.

The hidden costs the headline math misses

The cost per won job is the same, but the work you put in to get there is not. On the shared model, you quoted 5 jobs to win 1. On the exclusive model, you quoted 2 jobs to win 1. That's 3 site visits, 3 follow-up calls, and 3 written quotes you don't have to do.

If your time is worth $80 an hour and a quote and follow-up averages 90 minutes including travel, that's roughly $120 of unpaid labour per quote you didn't win. Three extra quotes is $360 of your time evaporated.

Once you load the unpaid time of quoting jobs you didn't win, the exclusive enquiry is roughly half the all-in cost of the shared one. The lead looked more expensive on the invoice. The job was cheaper by every meaningful measure.

The margin compression problem

The biggest hidden cost of shared leads isn't the per-lead spend. It's what it does to your pricing power on the jobs you do win.

When a homeowner has four quotes in their inbox, your quote becomes a benchmark in a comparison. You can't price properly because you know if you do, you'll lose to someone undercutting. So you trim the quote. Maybe $200 off. Maybe $500 off on a bigger job. Multiply that across 50 jobs a year and the discounting alone can chew through $10,000 to $25,000 of margin you'd otherwise keep.

On an exclusive enquiry, the homeowner doesn't have a benchmark. They've spoken to you. You're the only quote. Your pricing reflects your actual costs and margin, not the cheapest competitor in the postcode. Even a small lift in average job margin (say, 10 percent) usually swamps any per-lead cost difference between the two models.

Lifetime value changes the picture again

The other thing the per-lead math misses is what happens after the first job.

On a shared platform, the customer often associates the booking with the platform, not with you. They go back to HiPages or ServiceSeeking next time they need work, post another job, and you're back in the same auction trying to win them all over again. Customer retention from shared lead platforms is genuinely low. Most tradies report under 30 percent of platform-sourced customers come back directly.

On an exclusive enquiry, the customer rang a number, spoke to you, and booked. The next time they need fencing or painting or roof work, they ring you. Or they recommend you to a neighbour. Direct repeat and referral rates on exclusive-sourced customers usually run between 40 and 60 percent.

If your average job is worth $1,800 and the customer's lifetime value to your business is two jobs over five years, that's $3,600 instead of $1,800. Your cost per dollar of revenue from an exclusive lead is therefore not the same as your cost per won job. It's roughly half. Or less.

See painter Ashgrove and concreting Chelmer for trades where this lifetime value flywheel matters most. Homeowners in these trades tend to repeat and refer, but only if they have a direct relationship with the tradie, not a platform in the middle.

The simple test to apply to any lead source

Forget the per-lead price. Use this formula instead.

Run that calculation on whatever you're currently spending money on. If a platform won't tell you your historical conversion rate, that itself is the answer. The ones quietly running 18 percent conversion will dodge the question. The ones running 50 percent will tell you proudly.