Two contractors in the same market get the same offer from the same lead source: $95 per lead. One says that is outrageous. The other says that is cheap. Neither of them has run the math, so both of them are guessing, and one of them is about to be wrong in a way that costs real money.
The number that settles the argument is your break-even cost per lead. It is the most you can pay for a lead before the gross profit those leads produce is completely gone. It takes about ten minutes to calculate. Almost nobody does it, which is why the industry spends so much time arguing about lead prices instead of arguing about close rates and job values, where the money actually lives.
Here is the formula, the inputs, what the number looks like by trade, and how to use it to kill or scale a channel without a committee meeting.
What is break-even cost per lead and why does it decide everything?
Break-even cost per lead is the price point where the gross profit generated by a batch of leads exactly equals what you paid for that batch. Pay one dollar more and the channel is losing money. Pay one dollar less and it is making money, though not necessarily enough of it.
Break-even CPL = Average Job Value x Gross Margin x Close Rate
Run a roofing company with a $12,000 average job, a 40 percent gross margin, and a 25 percent close rate on a given source:
$12,000 x 0.40 x 0.25 = $1,200 break-even cost per lead
That number surprises people every single time. It means that on paper, a $95 lead is not remotely expensive for that roofer. It is 8 percent of break-even. The argument about whether $95 is too much was never a math argument. It was a feelings argument.
The reverse is just as important. A gutter company with a $2,000 average job, a 45 percent margin, and a 35 percent close rate breaks even at $315. That same $95 lead is 30 percent of break-even, which is a very different business. Same lead price, completely different decision.
If you want to skip the arithmetic and see the outcome on your own numbers, the ROI calculator runs this and the cost-per-acquisition math side by side.
Why break-even is a ceiling, not a plan
At break-even you make zero dollars. You have already paid for materials, labor, and subs, and every remaining cent went to the lead source. Your office, your trucks, your insurance, your salary, and your profit all get funded out of nothing.
So break-even is the wall, not the target. The working target is a fraction of it.
Target CPL = Break-even CPL / 3
The divide-by-three convention leaves two thirds of your gross profit to cover overhead and produce actual profit, and it lands you near the 3 to 1 marketing ROI benchmark most healthy contracting companies run at. For that roofer, $1,200 break-even becomes a $400 working ceiling. For the gutter company, $315 becomes $105.
What inputs do you need before the formula means anything?
Garbage in, confident garbage out. Three inputs, and two of them are usually wrong in the average contractor's head.
1. Average job value, by source
Not your best job. Not the number you quote at the bar. Total revenue from closed jobs divided by number of closed jobs, over the last 90 days minimum. Pull it per lead source if your CRM allows, because sources produce different tickets. Referral customers routinely spend more than marketplace shoppers on the same scope, because they are not comparing four bids line by line.
2. Gross margin, after commission
Revenue minus materials, minus labor, minus subs. Then subtract sales commission if your reps are paid on the job, because that dollar leaves with the sale. Do not use net margin here. Net margin already has marketing expense inside it, so using it double counts the exact cost you are solving for.
Most home improvement trades run 35 to 50 percent gross margin. If you are not sure which end you are on, you have a job costing problem that matters more than your lead problem.
3. Close rate, by source
This is the input that breaks most calculations. Contractors quote a company-wide close rate that came from their best channel and then apply it to their worst one.
Typical ranges by source:
- Referrals and repeat customers: 40 to 60 percent
- Organic search and Google Business Profile: 20 to 40 percent
- Exclusive leads worked fast: 20 to 40 percent
- Meta advertising, self-run: 10 to 20 percent
- Shared marketplace leads: 5 to 12 percent
If you do not know yours, pull 90 days of leads from one source, count signed contracts, divide. Fix the tracking before you scale spend on anything.
What does break-even cost per lead look like by trade?
These use industry-typical job values and margins. Your numbers will differ. Run yours.
| Trade | Avg job value | Gross margin | Close rate | Break-even CPL | Target CPL (/3) |
|---|---|---|---|---|---|
| TradeRoof replacement | Avg job value$12,000 | Gross margin40% | Close rate25% | Break-even CPL$1,200 | Target CPL (/3)$400 |
| TradeWindow replacement | Avg job value$14,000 | Gross margin35% | Close rate25% | Break-even CPL$1,225 | Target CPL (/3)$408 |
| TradeSiding | Avg job value$18,000 | Gross margin35% | Close rate22% | Break-even CPL$1,386 | Target CPL (/3)$462 |
| TradeBath remodel | Avg job value$18,000 | Gross margin40% | Close rate22% | Break-even CPL$1,584 | Target CPL (/3)$528 |
| TradeHVAC system replacement | Avg job value$9,000 | Gross margin40% | Close rate30% | Break-even CPL$1,080 | Target CPL (/3)$360 |
| TradeDeck build | Avg job value$16,000 | Gross margin35% | Close rate25% | Break-even CPL$1,400 | Target CPL (/3)$467 |
| TradeInterior painting | Avg job value$5,000 | Gross margin45% | Close rate30% | Break-even CPL$675 | Target CPL (/3)$225 |
| TradeFencing | Avg job value$6,000 | Gross margin35% | Close rate28% | Break-even CPL$588 | Target CPL (/3)$196 |
| TradeGutter replacement | Avg job value$2,000 | Gross margin45% | Close rate35% | Break-even CPL$315 | Target CPL (/3)$105 |
Read the spread. A roofer and a gutter company operating a mile apart have working ceilings that differ by 4x. Any blanket claim that leads should cost $50, or that $150 is robbery, ignores this table entirely.
This is also why blending trades inside one campaign wrecks your economics. A siding and gutter company running one campaign against one ceiling will either overpay for every gutter lead or lose every siding lead to a competitor willing to bid the real number. Our breakdown of what contractors should pay per lead walks through the all-in version of that comparison.
How do you use break-even to judge a lead source?
Five steps. Do them in order.
- Calculate break-even per source. Same formula, but plug in that source's actual close rate and average job value, not your company averages.
- Divide by three for your working ceiling. That is the price you will actually pay.
- Compare against the invoice price. If the source is under your ceiling, it is a scale candidate. If it is between the ceiling and break-even, it is a fix-or-cut candidate. If it is above break-even, it is dead.
- Recalculate cost per acquired job. Invoice price divided by close rate. This is the number that hits your P&L, and it is the one most contractors never compute.
- Re-run every 90 days. Job values drift, margins compress, close rates move when you change reps or follow-up.
The cost per acquired job check
Break-even CPL tells you what you can pay. Cost per acquired job tells you what you actually paid. They are two views of the same math, and the second one is what makes shared leads look different once the honeymoon ends.
| Scenario | Cost per lead | Close rate | Cost per acquired job |
|---|---|---|---|
| ScenarioShared marketplace lead | Cost per lead$50 | Close rate6% | Cost per acquired job$833 |
| ScenarioShared marketplace lead | Cost per lead$50 | Close rate10% | Cost per acquired job$500 |
| ScenarioSelf-run Meta advertising | Cost per lead$70 | Close rate15% | Cost per acquired job$467 |
| ScenarioExclusive lead, worked fast | Cost per lead$120 | Close rate25% | Cost per acquired job$480 |
| ScenarioExclusive lead, worked fast | Cost per lead$150 | Close rate35% | Cost per acquired job$429 |
| ScenarioExclusive booked appointment | Cost per lead$300 | Close rate35% | Cost per acquired job$857 |
The $50 lead is the most expensive customer on the list at a 6 percent close. The $150 lead is the cheapest. Cost per lead is the vanity number; cost per acquired job is the real one, and the full version of that comparison lives in our guide to exclusive vs. shared leads.
If you want your break-even number pressure-tested against your actual close rate and ticket, book a call and walk through it. It is a fifteen-minute conversation and you leave with a defensible ceiling.
Why do contractors set the number too low?
Because the invoice is the only cost they see. The lead fee arrives as a bill on Friday. The cost of a slow phone, a rep who does not follow up, and a $3,000 average ticket that should be $9,000 never arrives as a bill at all.
Setting the ceiling too low does three predictable things.
You get outbid on the buyers you actually want
Auction channels are auctions. The homeowner planning a $30,000 project and the homeowner wanting a $900 repair are not equally expensive to reach. Cap yourself at $60 across the board and you systematically win the cheap end of your own market.
You mistake a sales problem for a marketing problem
A channel running at $95 per lead and a 9 percent close rate has a cost per job of $1,056. Move that close rate to 22 percent with faster response and a real follow-up sequence and the same channel drops to $432 per job. Nothing about the lead price changed. Everything about the economics did.
You never build a budget, you just react
Break-even CPL is the input to a real marketing budget, which most contractors should run at 8 to 12 percent of target revenue rather than current revenue. That framework, tier by tier, is in the contractor marketing budget guide. Without a ceiling you are not budgeting. You are approving invoices when they feel small and cancelling channels when they feel big.
How often should you recalculate the number?
Quarterly, minimum. Recalculate immediately when any of the following happen:
- You raise prices or your material costs jump
- You hire or lose a salesperson
- You add a trade or a second market
- Your close rate moves more than five points on any source
- You change how fast leads get called
That last one deserves its own line. Response speed changes close rate, close rate changes break-even, and break-even changes what you can afford to pay. A company that answers in five minutes can legitimately pay more per lead than the company down the street that answers in five hours, and it will still make more money doing it.
The short version
Break-even cost per lead is average job value times gross margin times close rate. Divide by three to get your working ceiling. Calculate it per source, not company-wide, because close rates swing from 6 percent to 40 percent depending on whether the homeowner is talking to you or to four of you.
Once you have the number, the arguments stop. A lead price is either under your ceiling or it is not. A channel is either scaling or getting cut. And the fastest way to raise your ceiling is not to negotiate the lead price down, it is to answer the phone faster and close more of what you already have.
Minyona installs and manages exclusive lead generation systems for home improvement contractors, running through your own Meta ad account so the ad spend and the brand equity stay yours. Qualified leads run from $50 to $200 depending on trade and volume, booked appointments from $200 to $400, with a one-time setup of $2,000 and no monthly retainer. Bring your break-even number to the call and see whether the math works for your market.
Frequently asked questions
What is a break-even cost per lead?
Break-even cost per lead is the maximum you can pay per lead before the gross profit from the jobs those leads produce is completely consumed. The formula is average job value multiplied by gross margin multiplied by close rate. At that price you make nothing, which is why it is a ceiling and not a target.
How do I calculate break-even cost per lead if I do not know my close rate?
Pull the last 90 days of leads from one source, count how many became signed contracts, and divide. If your CRM cannot answer that, use a conservative placeholder of 15 percent for paid leads and 30 percent for referrals, then fix the tracking before you scale spend. A guessed close rate makes the entire calculation guesswork.
Should I use gross margin or net margin in the break-even formula?
Use gross margin, meaning revenue minus materials, labor, and subs, then subtract your sales commission if reps are paid on the job. Net margin already has marketing baked into it, so using it double counts the cost you are trying to solve for. If you want a stricter ceiling, subtract allocated overhead per job as well.
What is a good target cost per lead compared to break-even?
Most contractors should run at roughly one third of break-even, which leaves two thirds of the gross profit for overhead, sales cost, and actual profit. That produces a marketing ROI in the 3 to 1 range, which is the standard healthy benchmark. Anything at or above break-even is volume you are paying for out of your own pocket.
Does break-even cost per lead change by lead source?
The formula does not change but the inputs do, because close rate and average job value vary wildly by source. Shared marketplace leads close at 5 to 12 percent while exclusive leads close at 20 to 40 percent, so the same company can have a break-even four times higher on one channel than another. Calculate it per source, not company-wide.
Frequently asked questions
What is a break-even cost per lead?
Break-even cost per lead is the maximum you can pay per lead before the gross profit from the jobs those leads produce is completely consumed. The formula is average job value multiplied by gross margin multiplied by close rate. At that price you make nothing, which is why it is a ceiling and not a target.
How do I calculate break-even cost per lead if I do not know my close rate?
Pull the last 90 days of leads from one source, count how many became signed contracts, and divide. If your CRM cannot answer that, use a conservative placeholder of 15 percent for paid leads and 30 percent for referrals, then fix the tracking before you scale spend. A guessed close rate makes the entire calculation guesswork.
Should I use gross margin or net margin in the break-even formula?
Use gross margin, meaning revenue minus materials, labor, and subs, then subtract your sales commission if reps are paid on the job. Net margin already has marketing baked into it, so using it double counts the cost you are trying to solve for. If you want a stricter ceiling, subtract allocated overhead per job as well.
What is a good target cost per lead compared to break-even?
Most contractors should run at roughly one third of break-even, which leaves two thirds of the gross profit for overhead, sales cost, and actual profit. That produces a marketing ROI in the 3 to 1 range, which is the standard healthy benchmark. Anything at or above break-even is volume you are paying for out of your own pocket.
Does break-even cost per lead change by lead source?
The formula does not change but the inputs do, because close rate and average job value vary wildly by source. Shared marketplace leads close at 5 to 12 percent while exclusive leads close at 20 to 40 percent, so the same company can have a break-even four times higher on one channel than another. Calculate it per source, not company-wide.