How to Price Building and Trade Jobs Correctly: A Complete Guide
Most tradespeople underprice their work because they calculate labour at their direct wage cost and forget overhead. Your true labour cost includes employer NI, pension, tools, van costs, insurance, and non-productive time — typically 1.6–2.0× your direct wage rate. Price jobs as: (true labour hours × true labour rate) + materials with mark-up + subcontractor cost with mark-up + overhead contribution + profit margin.
- The most common pricing mistake tradespeople make
- Calculating your true overhead cost per hour
- Materials pricing: getting the mark-up right
- Quoting versus estimating: when to use which approach
- How to present a quote that wins work
The most common pricing mistake tradespeople make#
The most common pricing mistake is calculating labour cost at the hourly wage paid to operatives without accounting for the total employment cost and overhead. A plumber paid £20/hour costs the business approximately £28–£32/hour in total when employer NI (13.8% above £242/week), pension contributions (minimum 3%), holiday pay (12.07% of hourly rate), and sick days are included. Add tools, van depreciation and running costs, insurance, phone, and office admin — and the true cost of putting that plumber on a job is £38–£45/hour. Pricing at £35/hour, as many tradespeople do because it "feels right," means the business loses money on every hour worked.
Calculating your true overhead cost per hour#
Overhead includes everything that costs money but is not directly attributable to a specific job: vehicles (depreciation, insurance, fuel, maintenance), tools and equipment, office costs, insurance (public liability, employers' liability, professional indemnity), accountancy and legal fees, marketing, and management time. Add up last year's total overhead spend. Divide by the number of billable hours your business delivered last year (total hours worked minus non-productive time for travel, admin, training, and holidays). The result is your overhead cost per billable hour. Add this to your direct labour cost to get your break-even hourly rate. Any price above break-even generates profit; below it loses money.
Materials pricing: getting the mark-up right#
Materials should be priced at cost plus a mark-up that covers handling, procurement time, defective goods risk, and a contribution to overhead. A standard trade materials mark-up is 15–25% on cost. On a job with £8,000 in materials, a 20% mark-up adds £1,600 to the job value — this is legitimate and expected in the industry. Never invoice materials at supplier cost without a mark-up; the time spent sourcing, ordering, receiving, and managing materials has a real cost. For specialist or bespoke items, a higher mark-up (25–35%) is appropriate given the additional procurement effort and the risk of returns or waste.
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Quoting versus estimating: when to use which approach#
A quote is a fixed price — you are contractually bound to deliver the work for that amount regardless of actual cost. An estimate is an indicative price — actual costs may vary. Use fixed quotes for clearly defined, limited-scope projects where you understand all the variables. Use estimates (clearly labelled as such) for projects with significant uncertainty — old buildings with unknown structural conditions, jobs where the customer's specification may change, or projects with above-ground elements only (no groundworks). When quoting fixed prices, always include a clear scope of works, specify what is excluded, and include a clause for variations — additional work ordered by the customer at an agreed day rate or separately quoted price.
How to present a quote that wins work#
The format and professionalism of your quote influences whether you win the job as much as the price. A winning quote: arrives quickly (within 48 hours of the site visit, ideally same day); is clearly written with a detailed scope of works (customers are reassured by specificity — vague quotes lose to detailed ones even at the same price); includes a breakdown of key cost elements without necessarily itemising every bolt; has your branding, a professional email address, and clear contact details; and includes a simple one-page project timeline showing start date, key milestones, and expected completion. A quote like this signals a professional business and often wins against cheaper but less professional competitors.
People also ask
How do I price my work as a builder or tradesperson?
Calculate total job cost as: (estimated labour hours × true labour rate including all employment costs and overhead) + materials cost with 15–25% mark-up + any subcontractor costs with mark-up + profit margin. True labour rate for most tradespeople is £45–£70/hour all-in. Quoted price should achieve a gross margin of 20–35% on labour and materials combined.
What is a fair day rate for a tradesperson in the UK in 2026?
Day rates in 2026: electricians £200–£350/day; plumbers £180–£320/day; bricklayers £160–£260/day; plasterers £180–£280/day; carpenters £170–£280/day. Rates are higher in London and South East. These are charge-out rates to customers, not wages — they include overhead and profit.
How much should I mark up materials as a builder?
A standard materials mark-up for trade businesses is 15–25% on cost. For specialist or bespoke items with higher procurement effort, 25–35% is appropriate. Never supply materials at your cost price — the procurement, storage, and management time has a real cost that should be recovered.
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