What you’ll get from this guide
- Flat rate pricing software calculates a fixed customer price from loaded labor, parts markup, and target margin — instead of billing by the hour.
- The core formula is the same across trades: Flat Rate Price = (Labor Rate × Hours) + (Parts Cost × Markup) + Overhead + Profit Margin.
- What differs by trade is the callback allowance, the after-hours multiplier, and how much of the price is labor vs. parts.
- Free tools below for each trade: a price book builder (software) and a downloadable price book template (PDF) for plumbing and HVAC.
Why Trades Are Moving to Flat Rate
Hourly billing creates friction on both sides of the job: the customer doesn't know the final number until the work is done, and the business has no incentive structure that rewards efficient technicians over slow ones.
Flat rate pricing software fixes both problems. The customer sees one number before work begins. The technician presents it from a price book instead of negotiating live. And the business protects margin regardless of how fast or slow a given tech works, because the price was built from loaded cost, not from the clock.
The Flat Rate Formula (Same Across Every Trade)
Flat Rate Price = (Labor Rate × Labor Hours) + (Parts Cost × Markup) + Overhead + Profit Margin
Every trade builds from this same structure. The differences below are in the inputs, not the formula.
How the Formula Differs by Trade
| Trade | Typical Loaded Labor | Callback Allowance | After-Hours Multiplier | Target Gross Margin |
|---|---|---|---|---|
| Plumbing | $42–$55/hr | 3–5% (higher on drain/sewer) | 1.5×–2× | 50–60% |
| HVAC | $42–$55/hr | 3–5% | 1.5×–2× | 55–65% |
| Electrical | $42–$60/hr | 2–4% | 1.5×–2× | 50–60% |
Ranges are typical 2026 US benchmarks. Loaded labor includes payroll taxes, workers' comp, licensing, training, and PTO on top of the hourly wage.
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ServiceHub automates follow-ups, reminders, and booking confirmations so nothing falls through the cracks.
Where the Trades Genuinely Differ
Plumbing skews toward labor-heavy pricing on drain and sewer work (mostly time, minimal parts) but parts-heavy on water heater and fixture installs. Callback risk is highest on sewer and drain work.
HVAC has the widest spread between a simple capacitor swap (mostly labor) and a full system replacement (mostly equipment cost) — most shops run a full Good/Better/Best framework because the parts cost swings so much by job.
Electrical pricing leans more on code compliance and permit fees as a separate line item — many electricians keep permit costs out of the flat-rate labor number entirely so scope changes don't eat the base price.
Free Flat Rate Pricing Tools by Trade
Two formats for each trade — an interactive builder (software) if you want to customize and export, or a ready-made PDF if you just want starting benchmarks:
- Plumbing: Plumbing Flat Rate Pricing Software (build online) or the Plumbing Flat Rate Price Book Template (PDF, 50+ line items).
- HVAC: HVAC Price Book Builder (build online) or the HVAC Flat Rate Price Book Template (PDF + Google Sheet, 66 line items).
- Electrical: Electrical Flat Rate Pricing Software (build online) or the Electrician Price List Template.
FAQ
What is flat rate pricing software?▼
Is flat rate pricing the same formula for every trade?▼
Do I need different software for plumbing, HVAC, and electrical price books?▼
How often should a flat rate price book be updated?▼
Build a Live Price Book, Not a Static Spreadsheet
ServiceHub keeps your labor rate, parts markup, and margin logic in one place across every trade — so pricing never drifts between the office, dispatch, and the truck.