TRADEKIT FIELD GUIDE · REVIEWED 7 OCTOBER 2026

How to price a construction job

A reliable quote starts with a realistic cost of delivery. Separating direct costs, overhead and profit helps prevent markup and margin being confused.

Count the full job cost

Estimate labour hours at your true employment or owner-operator cost, not only the cash wage. Include materials, wastage, plant and tool hire, travel, parking, disposal, subcontractors, insurance and any other direct cost. Add a fair share of overhead such as admin, vehicle, storage and software.

Choose margin deliberately

Gross margin is profit divided by selling price. Markup is profit divided by cost. For £800 cost and a 25% target margin, divide £800 by 0.75: the price is £1,066.67 before VAT and estimated gross profit is £266.67. A 25% markup would price at £1,000 and produce a 20% margin.

Check scope and risk

Write down assumptions, exclusions, access constraints, working hours, disposal, client-supplied materials, payment stages and how variations will be agreed. Consider contingency based on the job risk, but show it transparently and avoid disguising uncertain scope as a precise estimate.

Apply VAT separately

VAT depends on the supply, customer, property and scheme. The price calculator can show a selected rate for arithmetic, but it cannot determine the correct rate or whether the domestic reverse charge applies. Check HMRC guidance before issuing a quote or invoice.

Practical checklist

Estimate hours and loaded labour cost.
List all direct costs and overhead allocation.
Set margin using price = cost ÷ (1 − margin).
State scope, assumptions, exclusions and VAT treatment.

Common questions

What is a good construction profit margin?

There is no universal target. It depends on trade, risk, capacity, overhead, local market and the work included. Use your own cost records rather than treating a calculator as a market benchmark.

Should VAT be included in my quoted price?

State clearly whether the amount includes VAT and apply the correct treatment for the actual supply. Seek tax advice if unsure.

Official references

Use the current source material and your contract for the specific facts. These links support this guide; they are not a substitute for individual advice.

Last reviewed 7 October 2026. TradeKit guides explain general process and arithmetic and are not legal, tax or accounting advice.