Construction Staffing Rates in the UK: How Charge Rates Are Built

Construction staffing rates confuse a lot of site managers because the number an agency quotes is never just the worker's pay. A charge rate bundles the pay rate together with statutory on-costs and the agency's margin. Once you can separate those parts, comparing two agencies becomes straightforward arithmetic rather than guesswork.

What a construction charge rate is made of

Every hourly charge rate for a temporary construction worker is built from four layers:

1. Pay rate — what the worker receives per hour. It must be at or above the National Minimum or National Living Wage for their age band, and in practice it is set by trade, ticket (CSCS card level) and local demand.
2. Holiday pay — accrued at 12.07% of hours worked for workers with no fixed hours. See the holiday pay calculator for how the accrual works.
3. Employer National Insurance and pension — employer NI above the secondary threshold, plus auto-enrolment pension contributions where the worker is enrolled.
4. Agency margin — the agency's gross profit, expressed either as a margin (percentage of the charge rate) or a markup (percentage of the pay rate). These are not the same number.

You can model all four layers for any pay rate with the charge rate calculator.

Typical rate shapes by role

Construction rates vary widely by region and by how scarce the trade is, so treat the shape below as a structure rather than a price list. Verify actual pay rates against current local advertising before you budget.

Role type	What drives the pay rate	Typical rate behaviour
General labourer	CSCS green card, site induction, availability	Closest to statutory minimums; most price-sensitive
Skilled trades (groundworker, carpenter, electrician)	Qualifications, cards, experience, certification	Materially above labourer rates; scarcity-driven
Site supervisor / SSSTS-SMSTS	Supervisory tickets, site responsibility, references	Highest of the three; supply is thin in most regions

Why the same worker costs different amounts at two agencies

Two quotes for the same trade can differ for three legitimate reasons:

• Different pay rates. One agency may be paying more to secure reliable workers in a tight local market.
• Margin versus markup confusion. A 20% markup on pay is not a 20% margin on charge. Ask which basis is being quoted.
• What's inside the rate. PPE, travel, holiday pay treatment and umbrella arrangements are sometimes inside the rate and sometimes billed on.

Always ask for the pay rate and the charge rate side by side. If an agency will only quote the charge rate, you cannot verify the on-costs.

Regional demand and North West / Manchester projects

Rates are set locally. A groundworker rate on a Manchester or wider North West project reflects the pipeline of work in that travel-to-work area, not a national average. When you are budgeting across sites in different regions, build the rate per site rather than applying one national assumption, and rebuild it when a large local project starts absorbing the available labour.

Budgeting construction labour properly

• Model the full charge rate, not the pay rate, when you set a labour budget.
• Include overtime and weekend premium assumptions explicitly — they are usually a separate multiplier on the pay rate, with on-costs applied on top.
• Track fill rate as well as price. A cheap rate that leaves the gang short costs more in programme delay than the saving.
• Re-check rates each April when statutory minimum wage and employer NI thresholds change.

Work the numbers yourself

Use the charge rate calculator to turn any pay rate into a charge rate with holiday pay, employer NI, pension and margin applied, and the hourly to annual salary calculator to see what an hourly site rate is worth over a full year of work.