Ask most home improvement contractors what they spend on marketing and they will tell you their lead spend. The monthly invoice from the aggregator platform. The Google budget. The Facebook campaign. They will add those numbers up and give you a figure they are reasonably confident in.
That figure is wrong. Not because they are calculating it incorrectly, but because they are calculating the wrong thing. What they are measuring is the cost of acquiring leads. What they should be measuring is the fully loaded cost of acquiring revenue — and those two numbers are rarely the same, and almost never close.
The gap between those two numbers is where the real marketing cost problem lives. And for most home improvement contractors, it is wider than they realize.
The 15% Target and Why Most Companies Miss It
In home improvement, a well-run marketing operation targets a blended marketing cost at or below 15% of net revenue. Net revenue in this context means closed and retained sales volume — the revenue from jobs that were sold, completed, and not cancelled. A company generating $1 million in net revenue should be spending no more than $150,000 to produce it. A company at $3 million should be at or below $450,000. At $5 million, the target is $750,000.
These are not arbitrary benchmarks. They reflect the margin structure of home improvement businesses where labor, materials, overhead, and sales costs all compete for the same revenue dollar. When marketing costs exceed 15% of net revenue, the pressure on margin becomes difficult to absorb without either cutting somewhere else or accepting lower profitability.
The reality is that most contractors are not at 15%. Industry experience consistently shows that the blended marketing cost for most home improvement operators falls between 16% and 20% of net revenue — and frequently higher for companies that have not examined the full cost picture. At $3 million in net revenue, the difference between 15% and 19% is $120,000 in annual margin. That is not a rounding error. It is a significant number that compounds year over year.
Most contractors believe they are close to 15%. Most have never calculated the number that would tell them whether that is true.
What Gets Left Out of the Calculation
The reason so many contractors overestimate their marketing efficiency is that the cost they track — lead spend — is only one component of the fully loaded marketing cost. It is typically the largest single line item, which is why it becomes a proxy for the whole. But a proxy is not the whole, and the components that get excluded from the calculation are not trivial.
If you employ anyone whose primary function is marketing — a marketing manager, a digital specialist, a lead coordinator, an appointment setter — their fully loaded compensation belongs in your marketing cost calculation. This includes salary, payroll taxes, benefits, and any performance incentives tied to lead volume or campaign performance. For many mid-market contractors, marketing staff cost is the second largest component of fully loaded marketing cost after lead spend, and it is almost universally excluded from the percentage contractors report.
If you work with an external agency, a paid search manager, a social media firm, or any other third party that manages any component of your marketing spend, their fees are a marketing cost. These are frequently categorized as professional services or vendor expenses in the chart of accounts and never make their way into the marketing cost percentage that gets reported in operational reviews.
CRM platforms, lead management tools, dialer software, call tracking systems, landing page builders, email marketing platforms — every subscription that exists to support the acquisition and management of leads is a marketing cost. These are often expensed as operational software and excluded from marketing cost calculations entirely, despite being direct infrastructure costs of the marketing function.
Ad creative, photography, video production, copywriting, design work for landing pages or campaign assets — any spend on content or creative that feeds marketing channels belongs in the fully loaded cost. For companies running active paid social or video campaigns, creative production costs can be substantial and are frequently treated as one-time expenses rather than recurring marketing infrastructure.
Any tools or external services used to measure, track, or report on marketing performance are themselves a marketing cost. This includes business intelligence subscriptions, dashboard tools, and any consulting or analytical work done to evaluate campaign or source performance.
When these components are added together and expressed as a percentage of net revenue, the number almost always increases. For contractors who believe they are operating at 16% based on lead spend alone, the fully loaded number is frequently 19% to 22%. For contractors who believe they are at 14% — under the target — the fully loaded picture often tells a different story.
Why the Distinction Matters for Decision-Making
The reason fully loaded marketing cost matters is not accounting precision. It is decision quality.
When a contractor evaluates whether to increase spend on a lead source, the implicit assumption is that the additional leads will be profitable at the current cost structure. But if the current cost structure is already at 19% fully loaded — not 15% as believed — adding spend on a source that performs at the blended average pushes the fully loaded cost higher, not lower. The decision looks different when made against the right denominator.
When a contractor evaluates whether a lead source is worth keeping, they typically compare the cost-per-lead from that source against their average cost-per-lead. But if the cost-per-lead calculation excludes staff time spent managing and following up on leads from that source, the comparison is incomplete. Some sources require significantly more operational support per lead than others — more calls to reach contact, more nurturing to convert to appointment, more confirmation touches to hold the appointment through to completion. That operational cost is real and it belongs in the source-level cost calculation.
The decision you make with incomplete cost data is not a marketing decision. It is a guess that looks like a decision.
The Compounding Effect of Uncounted Costs
There is a compounding dynamic that makes the fully loaded cost problem worse over time. As companies grow, the non-lead-spend components of marketing cost tend to grow faster than lead spend itself.
A contractor scaling from $2 million to $4 million in net revenue will typically double their lead spend roughly in line with their revenue growth. But they will also hire additional marketing or lead management staff, add software subscriptions to handle the increased volume, bring on an agency to manage channels they no longer have internal capacity to manage, and invest in creative and production to maintain campaign quality at higher spend levels. Each of these additions increases the fully loaded cost percentage even if the lead spend percentage stays flat.
The result is that companies which believe their marketing efficiency is stable or improving — because their lead spend as a percentage of revenue is holding steady — are frequently watching their fully loaded marketing cost percentage drift upward without realizing it. The gap between what they think they are spending and what they are actually spending widens with each growth phase.
The Revenue Side of the Equation
There is a second dimension to this problem that compounds the cost issue further: the revenue figure used as the denominator in the marketing cost percentage.
Most contractors who calculate a marketing cost percentage use their gross sales volume — the total value of contracts signed — as the denominator. The correct denominator is net revenue: closed and retained sales volume after cancellations. A company with $4 million in signed contracts and a 20% cancellation rate has $3.2 million in net revenue. If they are calculating their marketing cost percentage against $4 million, they are understating the true percentage by a significant margin.
When you combine an understated cost numerator — lead spend only, excluding staff and software — with an overstated revenue denominator — gross sales instead of net revenue — the marketing cost percentage that appears in operational reporting can be materially lower than the true fully loaded figure. A company that reports 15% blended marketing cost may be operating at 21% or 22% on a fully loaded, net-revenue basis. That is not a company that is hitting its target. That is a company that does not yet know what its target actually looks like against reality.
What Operators Who Track This Correctly Do Differently
Operators who manage to a fully loaded marketing cost percentage treat it as a primary operational metric, not a periodic exercise. They know the number every month. They know how it moved relative to the prior period and why. They know which components drove the movement — whether it was a shift in lead spend mix, a staffing change, a software addition, or a change in net revenue driven by cancellation rate.
They also know the number at the source level, not just the blended total. A source that appears efficient on a cost-per-lead basis may look significantly different when staff time, technology, and operational support costs are allocated against it proportionally. The source that requires the most manual intervention per lead — the most calls, the most follow-up, the most coordination to hold appointments — carries a higher fully loaded cost per acquired revenue than the lead price alone suggests.
Getting to this level of visibility requires connecting data from the financial side of the business — staff cost, software subscriptions, agency fees — with data from the marketing and operations side — lead volume, source attribution, funnel metrics, and net revenue by source. Most contractors have all of this data somewhere in their business. Very few have it connected in a way that produces a reliable fully loaded marketing cost figure on a consistent basis.
Until that connection exists, the marketing cost percentage being reported is not wrong because the math is bad. It is wrong because the inputs are incomplete — and incomplete inputs produce decisions that look rational but are made in the dark.
Revenue Intelligence · Verisyn HQ