Your minimum service charge should cover the fixed cost of mobilizing for a job, the minimum labor time you commit, direct operating costs, an allocation for overhead, and your required profit. Once calculated, use the greater of your normal job price or your minimum charge.
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In this guide
1. Why a Minimum Service Charge Matters
Small jobs are deceptive. The cleaning portion may take 25 minutes, but the business commitment is much larger: scheduling, customer messages, travel, unloading, setup, washing, rinsing, cleanup, loading, payment, and travel to the next job.
If you price only the visible square footage, tiny jobs can produce your worst effective hourly revenue.
2. Calculate the Cost of Showing Up
| Cost category | What to consider |
|---|---|
| Labor commitment | Total minimum time tied up, including travel, setup and cleanup. |
| Vehicle / fuel | Truck operating cost, fuel and typical local travel. |
| Equipment | Fuel, maintenance, wear and replacement reserve. |
| Chemicals | Minimum chemical and consumable use for a service call. |
| Overhead | Insurance, software, phone, marketing, admin, storage and other fixed costs. |
| Profit | The return the business needs after costs are covered. |
3. A Practical Minimum-Charge Formula
Minimum selling price = minimum cost to serve ÷ (1 − target margin)
This is more useful than asking a social-media group, “What is everybody's minimum?” Their number was built for their business, assuming it was calculated at all.
4. Worked Example
Minimum labor/time allocation: $70
Vehicle/travel: $20
Equipment + chemicals: $15
Overhead allocation: $30
Minimum cost to serve = $135
At a 30% target margin: $135 ÷ .70 = about $193.
A contractor might establish a clean $195 or $200 minimum based on that calculation and local positioning. The exact number is illustrative. The method is what matters.
5. You Don't Need to Apologize for a Minimum
A professional explanation can be simple: your company has a minimum service charge for standalone appointments. The customer does not need an accounting lecture about pump depreciation.
Better still, give the customer ways to receive more value from that minimum by bundling nearby work.
- Add the front walkway.
- Add a small patio.
- Add sidewalks or curbing.
- Bundle a house wash where appropriate.
6. When Can You Break Your Own Minimum?
A minimum is a business rule, not a religious text. Exceptions can make sense when the economics genuinely change.
- A neighbor books while your crew is already next door.
- A small add-on is performed during a larger profitable job.
- A recurring commercial route dramatically reduces mobilization cost.
- A strategic customer relationship produces measurable repeat work.
The important distinction is intentional exception versus habitual discounting.
7. Recalculate the Minimum as the Business Changes
Insurance rises. Fuel changes. Equipment gets upgraded. Employees replace owner labor. Marketing costs evolve. A minimum calculated two years ago can quietly become obsolete.
Review it at least periodically and whenever your cost structure changes materially.
😬 Minimum-Charge Hall of Shame
“It'll only take me 20 minutes.”
The contractor quotes $65 because the actual washing looks quick. Forty minutes of round-trip travel, setup, cleanup, fuel, equipment wear and customer communication apparently entered another dimension.
Why it fails: the quote prices wand time rather than business time.
- Waiving the minimum whenever a customer objects.
- Setting the minimum from a competitor's Facebook comment.
- Keeping the same minimum after hiring employees and adding overhead.
- Driving 35 miles for a tiny job at the same minimum used two streets away.
🏆 Minimum-Charge Hall of Fame
The contractor who turns a minimum into value.
A customer's tiny driveway falls below the $200 minimum. Instead of discounting the appointment to $95, the contractor explains the minimum and offers to include an adjacent walkway that can be completed efficiently during the same setup.
Why it works: the business protects its economics while the customer feels they received something useful rather than an arbitrary surcharge.
8. Bottom Line
Your minimum charge answers one question: What is the least amount this company can reasonably accept to put a service appointment on the calendar?
Calculate it. Defend it. Bundle intelligently around it. And stop allowing 200 square feet of concrete to commandeer a professional service business for lunch money.
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Pricing note: Example figures are illustrative. Build your actual minimum from your own labor, overhead, travel, equipment, insurance, local market, taxes, and desired profitability.