Job Estimate Calculator
Build a quick, accurate service quote from labor hours, materials, overhead, and your target markup.
Send estimates from the field
FieldFlow lets you build, send, and track job estimates on-site — no laptop needed. Field service management built for HVAC, electrical, and plumbing contractors.
Try FieldFlow free →How this calculator works
Enter your labor hours and rate, materials cost, an overhead percentage for indirect costs, and your desired markup. The calculator totals them into a customer-ready quote and shows your profit and margin.
Track actual time on similar past jobs to improve your labor-hour estimates. Always include a materials buffer (5-10%) for price fluctuations and waste.
Present the quote as a single line-item total — customers respond better than seeing a full cost breakdown.
Frequently asked questions
What markup should I use?
Most field-service contractors target 20-35% markup on total costs. Higher-skill trades (electrical, HVAC install) can often command 30-50%.
What is included in overhead?
Vehicle costs, insurance, tool wear, office expenses, and any indirect labor (drive time, admin). The 10-15% default covers most small operations.
How do I handle change orders?
Price change orders the same way: labor + materials + overhead + markup. Having a consistent formula keeps margins predictable.