Direct answer
Separate preparation from painting hours and keep paint, waste, sundries and access equipment visible before applying overhead and margin.
| Figure | Source |
|---|---|
| Numbers shown on this page | Fictional worked example; not a market benchmark |
| Formula and definitions | Serman Tools method stated on this page |
| Your quote or operating result | Your verified business inputs |
Separate preparation from application
Preparation may include protection, patching, sanding, masking and cleanup. Estimate those person-hours separately from rolling, brushing or spraying so scope changes do not disappear inside one labor total.
Use productive labor cost per hour, not wage alone, and include supervision or setup when the job requires it.
Build paint quantity from the scope
Coverage depends on surface, product and application. Estimate gallons from measured area, coat count and verified coverage, then add a visible waste allowance for cuts, texture, loss and touch-up.
Sundries such as tape, plastic, paper, rollers and abrasives belong in their own line when material spend is meaningful.
Fictional worked example
Assume 16 painting hours, four prep hours and a true labor cost of $35 per hour. Add 10 gallons at $42, 7% material waste, $80 of sundries, $75 of equipment and $100 of overhead.
The base cost is $1,404.40. A 5% contingency brings true cost to $1,474.62. At a 30% target margin, the planning price is $2,106.60.
Treat access as a real cost
Lifts, scaffolding, difficult staging and occupied-space protection change labor and equipment cost. Record them explicitly and define whether rental time includes delivery, setup and standby days.
If access conditions are unverified, include an assumption and a change mechanism in the quote instead of pretending the uncertainty does not exist.
Compare estimated and actual production
After completion, compare prep hours, application hours and material usage with the estimate. A single combined labor variance cannot show whether the issue was preparation, coverage, scope or crew execution.
Frequently asked questions
Is paint markup the same as job margin?
No. Material markup applies to one cost component; job margin compares total planned profit with total selling price.
How should multiple coats be handled?
Include coat count in the gallon estimate and in production hours using your verified coverage and production assumptions.
Where do touch-ups go?
Use a documented labor/material allowance or contingency and avoid adding the same risk twice.
Does the tool price by square foot?
It builds from cost. You can divide the resulting price by measured area for comparison, but area alone does not capture prep or access.
RUN THE NUMBERS
Use your own costs before you quote.
Start with the free Painting Contractor Job Pricing Calculator. The Home Service Pricing Workbook keeps the related workflow in a downloadable workbook.
Planning and estimation only. No price, rate, revenue, profit or business outcome is guaranteed.