Commercial control is not the accounts department. It is not a monthly report and it is not an administration function added after the real work has happened.
It is the set of decisions, limits and working rhythms by which you control:
- What you price
- What you agree to
- What you deliver
- What you recover
- When the money reaches the bank
The accounts record the result. Commercial control changes it.
For contractors, that control sits across the tender, the contract and the live project. It links the estimate to the programme, the programme to delivery, and delivery to valuation and cash.
This is the starting point for BHD Limited’s commercial control series. Our default lens is project controls for contractors: practical cost, programme, risk, change and reporting disciplines that protect the commercial position on each job.
Where contractor margin actually leaks
Most margin leakage starts in one of three places:
- What you price: the tender
- What you accept: the contract terms
- What you recover: change, valuation and cash
A contractor can lose control before mobilisation, through an unrealistic tender. The business can then accept terms that transfer risks it has not priced. Finally, it can deliver change, incur cost and fail to recover the value.
| Leak point | What commonly leaks | What control fixes it |
|---|---|---|
| Tender | Work priced below a deliverable margin, unpriced risks, unrealistic preliminaries and suicide bidding | Bid/no-bid review, clear assumptions, risk pricing and authority limits |
| Contract terms | Unfavourable amendments, unclear scope, Z clauses, notice obligations and poor payment terms | Contract review, risk allocation checks, approval of departures and a live contract register |
| Change and cash | Scope creep, unvalued change, unrecovered preliminaries, missed notices and late payment | Change register, timely notices, valuation discipline, payment tracking and forecast reconciliation |
These are not separate problems. They interact.
An underpriced tender leaves less room for disruption. A poor contract makes change harder to recover. Weak records then make a final account more difficult to prove.
What commercial control is not
It is useful to remove a few common misunderstandings.
It is not the monthly management accounts
Management accounts tell you what has happened financially. They do not, on their own, explain why the position moved or what decision should follow.
Commercial control asks:
- Which cost has moved?
- Which risk has become real?
- Which change has not been valued?
- What will the final margin be?
- What needs to happen this week?
It is not a report
A report that describes the problem without assigning an action is not control.
A usable report identifies the position, the movement, the owner and the next decision.
It is not a software purchase
Your estimating system, cost and accounting system, programme, contract register and document system all have a role. None of them can fix unclear responsibility.
If people use different job numbers, rekey information into disconnected spreadsheets or keep key instructions in inboxes, the business does not have one version of the numbers. It has several partial versions.
It is not bureaucracy bolted onto delivery
The right controls make decisions earlier. They do not create paperwork for its own sake.
The test is simple: does the process help you price, notify, value, forecast, challenge or recover something? If not, simplify it.
The five parts of a working commercial control framework
1. Policy and authority
You need clear rules about what the business will and will not accept.
That includes:
- Minimum deliverable margin and pricing floors
- Risk allowances and tender assumptions
- Contract forms and amendments you will accept
- NEC and JCT positions
- Z clauses and bespoke amendments requiring escalation
- Payment terms, retentions and credit exposure
- The level of authority needed to commit the business
Delegation of authority simply means that people know which decisions they can make and which decisions need approval.
A project manager may approve a routine operational purchase. They should not accept a material change to payment terms or agree a risk allocation that affects the whole job without escalation.
The rules must be clear enough to use under pressure. A policy that nobody understands is presentation, not control.
2. Process across the job lifecycle
Commercial control must run from first tender to final account. It cannot be an end-of-job exercise.
A proportionate process covers:
- Tender review and bid/no-bid decisions
- Estimate checks, assumptions and risk pricing
- Contract review and sign-off
- Budget and programme baselines
- Procurement and subcontract commitments
- Delivery, instructions and change control
- Valuations, applications and payment notices
- Forecasting and cost-to-complete reviews
- Final account and project close-out
On NEC work, that includes disciplined compensation event management and early notification. Our NEC4 compensation event guide explains why notification, assessment and records must move together.
On every contract, it means understanding the payment dates, certification process, final date for payment and consequences of missed action. See our UK construction payment process guide for the practical sequence.
3. Roles and accountability
Someone must own the commercial position on every job.
That does not mean one person performs every task. It means the business can answer a basic question: who is responsible for knowing whether this project is making or losing money?
Commercial responsibility cannot sit only with whoever happens to be doing the accounts. Accounts may identify that costs have risen. They may not know that a design change caused the movement, that a subcontractor is entitled to an extension, or that preliminaries are no longer being recovered.
On smaller jobs, the owner often carries much of this responsibility. That is understandable. It is also a risk if the position exists only in the owner’s memory.
Name the owner. Define the review rhythm. Record the decisions.
4. Systems and one version of the numbers
The aim is not to buy the largest system. It is to make the information agree.
Your:
- Estimate
- Cost codes
- Programme
- Contract register
- Change register
- Valuation headings
- Forecast
- Final account records
should use consistent references and tell the same story.
Fragmented information creates delay and doubt. Someone rekeys a spreadsheet. Another person updates a forecast from an old valuation. A site instruction remains in an email. The cost appears in the accounts but not against the related change.
That is how small leaks become a final account problem.
Our article on cost control that sees movement early sets out the practical link between commitments, actual cost and cost to complete.
5. Performance
You do not need dozens of measures. You need a short set that leads to decisions.
Useful contractor measures include:
- Gross margin by project and by client
- Forecast accuracy against outturn
- Debtor days
- Cash against programme
- The proportion of change recovered
- Tender win rate
- Approved and pending change
- Cost against the current programme position
Watch the movement, not just the current number.
A forecast margin that falls each month needs action. A debtor balance that grows while the project appears profitable needs attention. A tender win rate that improves only because pricing has been cut too far is not a success.
Five symptoms of weak commercial control
Contractors usually recognise the symptoms before they call them a control problem:
- Prices are cut at the death to win the job. The team calls it commercial judgement, but the margin was never properly tested.
- Contract terms are signed without understanding the risk. The business discovers the notice requirement or payment exposure after the job has started.
- Change is done on site and never valued. The instruction is obvious to delivery but absent from the commercial record.
- Valuations and cash fall out of step. Work progresses, but applications, certification and receipts do not follow the programme.
- Margin is discovered at final account. By then, the opportunity to correct behaviour or recover evidence has largely passed.
Early rather than late is the central discipline.
What good looks like in practice
Good commercial control is not complicated for its own sake. It is visible in the working rhythm of the job.
You should see:
- A short, regular commercial review that takes decisions
- A live view of position, forecast and margin
- A change register reconciled to the forecast
- Authority limits that front-line staff understand
- Contract obligations and notice dates in one accessible register
- Records that withstand scrutiny
- A clear route from site information to valuation and cash
The change and configuration control guide explains why the record matters across packages and interfaces. The principle is straightforward: if the scope changes, the record, cost, programme and responsibility must change with it.
Start with a minimum viable control set
An SME contractor does not need an oversized corporate process. Start with five practical controls:
- One cost baseline linked to the estimate and cost codes.
- One programme baseline showing the planned sequence and key dates.
- One change and risk register with owners, values and next actions.
- One cost and value reconciliation rhythm so forecast cost, work completed and cash are reviewed together.
- One page of reporting showing position, movement, forecast and decisions.
Add one more requirement: one named person accountable for the commercial position.
That is enough to create a usable foundation. Improve it as the business and project complexity grow.
This is the bridge between commercial control and project controls. Commercial control is what the business wants to achieve: protect margin, reduce exposure and convert delivery into cash. Project controls is the discipline that delivers that outcome on each job.
Our project controls pillar explains why project controls must be more than reporting.
Honest answers to common objections
“Won’t control slow us down?”
Poorly designed control can slow decisions. Clear authority and standard checks usually do the opposite.
The answer is not no control. It is proportionate control, applied early.
“What if rigid rules cost us work?”
Rules should create a safe route for exceptions. They should not pretend every project carries the same risk.
Escalate the exception. Price it honestly. Record who accepted it and why.
Winning work matters. Winning work profitably matters more.
“Our information is spread across spreadsheets and inboxes.”
That is common. Start by agreeing the job numbers, the source records and the review owner. Do not try to digitise every process at once.
One reliable register is better than five sophisticated but disconnected tools.
“Who sponsors this?”
Someone senior must set the expectation and attend the review. Without sponsorship, controls become optional when the project gets busy.
Frequently asked questions
What is commercial control?
Commercial control is the way a contractor manages the decisions, limits and processes that affect margin, risk, entitlement and cash. It covers tendering, contract terms, delivery, change, valuation and final account.
How is commercial control different from project controls or quantity surveying?
Commercial control is the business-level outcome. Project controls provides the delivery-side structure through cost, programme, risk, change and reporting disciplines. Quantity surveying focuses on commercial measurement, valuation, procurement and contract administration. The disciplines overlap, but they are not identical.
A cost consultancy service for contractors can help when the commercial position needs independent review or recovery action.
Do I need software?
Not necessarily. You need consistent information, clear ownership and a reliable review rhythm first. Software can reduce manual work later, but it cannot repair unclear processes or poor records.
Can a small contractor do this without a commercial team?
Yes, if the controls are proportionate and someone owns them. An owner, project manager or external adviser can coordinate the process. The business should not rely on one person’s memory or informal conversations.
Where do I start?
Start with one live job. Reconcile the estimate, current cost, forecast, programme, changes, valuation and cash position. Then identify the three gaps causing the greatest exposure.
Who should own it?
A senior person should sponsor it, and each project should have a named commercial owner. The owner does not need to complete every task, but they must be able to explain the position and act on movement.
A practical next step
BHD Commercial's team brings 25 years' experience across construction, defence and infrastructure. Our team are members of the relevant professional body.
We work UK-wide from our registered office at 66 Paul Street, London EC2A 4NA, with a regional office at 4-5 Victoria Square, Wolverhampton, WV1 1LD.
If you want a straight view of where your commercial control is weak, request a free Commercial Health Check. We will look at the controls around your live work and identify the practical gaps. You will receive a clear next step, not a descriptive report.
The next posts in this series will cover authority and approval limits, tender control, contract terms control, change and revenue leakage, valuation to cash, and the commercial KPIs worth watching.