What a Part-Time Finance Director Actually Does for UK Construction SMEs

Your accountant files the numbers. But who’s actually using them to run your construction business?

If you’re making cashflow, pricing, and margin decisions without reliable forward-looking data, you already know something’s missing. Most construction and engineering SME owners do. The month-end figures arrive late, the accountant is focused on compliance, and the business is running on gut feel and optimism rather than real numbers.

This article explains exactly what a part-time Finance Director delivers in a construction or engineering context, how a fractional FD service differs from simply hiring someone part-time, and when your business genuinely needs one. By the end, you’ll know whether this is the right move for your business right now – and what to look for when you make it.

If you’d rather talk it through directly, you can book a free call with SMART Solutions to explore what fractional FD oversight would look like for your business.

What Is a Part-Time Finance Director – and What Are They Actually For?

A part-time Finance Director is a senior financial professional who works with your business on a defined basis – typically a set number of days per week or month – rather than as a full-time employee. The role sits above your accountant and above your bookkeeper. It’s a strategic and commercial function, not a compliance one.

The Institute of Chartered Accountants in England and Wales (ICAEW) distinguishes clearly between financial reporting (backward-looking, compliance-driven) and financial leadership (forward-looking, decision-driving). A Finance Director operates in the second category. They’re responsible for turning data into decisions – not just recording what happened.

For construction and engineering SMEs, this distinction matters enormously. Project-based businesses carry financial risks that generic accounting simply doesn’t surface: margin erosion on contracts, retention cash tied up for months, cashflow gaps between valuations and payments, and bids priced on instinct rather than real cost data. A part-time FD addresses all of this. A compliance accountant, by design, does not.

When does a business need a Finance Director?

The trigger point is usually when the owner-manager can no longer hold the full financial picture in their head. In construction, that often happens earlier than in other sectors – because project-based revenue is lumpy, costs are front-loaded, and a single contract going wrong can wipe out the margin from three that went right. If you’re regularly surprised by your cashflow position, unsure whether your jobs are actually profitable, or pricing new work without confidence in your numbers, you’ve already passed the point where a Finance Director adds value.

Part-Time FD vs Your Accountant: Why Construction Businesses Need Both

This is the question we hear most often: “We already have an accountant – do we really need anything else?” The honest answer is yes, and the reason is structural, not a criticism of your accountant.

Accountants are trained and incentivised to produce accurate historical records. They file your statutory accounts, manage your tax position, and ensure you’re compliant with Companies House obligations. That work is essential. But it tells you where you’ve been, not where you’re going.

A part-time Finance Director works with your existing accountant – not instead of them. They take the compliance data your accountant produces and translate it into forward-looking commercial insight: cashflow forecasts, margin analysis by job, pricing models, and monthly commercial reviews that actually inform decisions.

Sanjose Lala, a client of SMART Solutions, put it plainly: “We already had an accountant, but weren’t getting much value beyond record keeping. SMART now manages that relationship and makes sure the information actually helps us run the business.” That’s the gap a fractional FD fills. Not replacing the accountant – making the accountant’s work count.

What is the difference between a Finance Director and an accountant?

An accountant’s primary responsibility is accurate financial record-keeping and compliance reporting. A Finance Director’s primary responsibility is using financial information to drive business performance. In practice, this means a Finance Director is focused on future cashflow, margin protection, pricing strategy, and commercial risk – while the accountant ensures the historical records are accurate and the tax position is optimised. Both roles are necessary. In most construction SMEs, only one of them is currently being filled.

What a Part-Time Finance Director Does in a Construction or Engineering SME

Generic descriptions of the FD role – “strategic guidance”, “financial oversight” – don’t tell you much. Here’s what the work actually looks like in a project-based construction or engineering business.

Cashflow forecasting. Not a static spreadsheet updated once a quarter. Live cashflow tracking built from your accounting software, bank feeds, and project data – showing you exactly when cash pressure is coming and giving you time to act. In construction, where payment terms are long and retentions can sit unpaid for a year or more, this visibility is the difference between managing the business and reacting to it.

Margin tracking at job level. Every contract has a tendered margin. The question is whether you’re actually achieving it. Job-level margin tracking compares actual cost-to-complete against the original tender, flagging where profit is being eroded before the job is finished – not after. This is where most construction SMEs lose money without realising it.

Pricing strategy. Bidding on instinct is expensive. A fractional FD builds pricing models from your real cost-to-deliver data and target margins, so you can bid with confidence rather than guesswork. Over time, this also reveals which types of work are genuinely profitable for your business and which are not.

Monthly commercial reviews. A structured monthly review of financial and commercial performance – covering management accounts, job costing, valuations, retentions, and pipeline – translated into clear decisions. Not a report to file. A conversation that changes what you do next.

Accountant relationship management. Managing the existing accountant relationship on your behalf, ensuring compliance information is actively used for business decision-making rather than sitting in a folder.

How many days per week does a part-time Finance Director work?

It varies by business size and complexity, but most construction and engineering SMEs working with a fractional FD service engage on the equivalent of two to four days per month rather than per week. This is enough to maintain live financial oversight, run monthly commercial reviews, and respond to specific commercial challenges as they arise. The key difference from a traditional part-time hire is that a fractional FD service scales with your needs – you’re not paying for a fixed headcount, you’re buying a defined set of commercial outcomes.

The Difference Between Hiring a Part-Time FD and Using a Fractional FD Service

Most of what ranks on Google for “part-time Finance Director UK” is recruitment content. FD Capital, FD Recruit, Boardroom Advisors – they’re all placement services. They find you a person. You hire that person. They work part-time.

That model has its place. But it’s not the only model, and for many construction SMEs it’s not the right one.

A fractional FD service is a managed commercial advisory engagement. You’re not hiring a person and managing their time – you’re buying a defined set of financial and commercial outputs, delivered by a team with the tools, systems, and sector knowledge already in place. The fractional FD connects to your existing accounting software, builds live dashboards from your data, and delivers structured monthly oversight without the overhead of an employment relationship.

The practical difference: a part-time hire requires onboarding, management, and continuity planning. A fractional FD service is operational from day one, with no recruitment risk and no gap if circumstances change.

Thomas Baldwin, who brought SMART Solutions in to support the next phase of his business, described the outcome as “strengthening structure, controls, and long-term stability.” That’s what a properly structured fractional FD engagement delivers – not just a person in a seat, but a system of financial control that works.

When Does a Construction Business Actually Need a Part-Time Finance Director?

There’s no single revenue threshold. We’ve worked with construction businesses turning over £800k that desperately needed financial oversight, and businesses at £5m that were still running on spreadsheets and hope. The trigger is almost always one of three things.

First: you’re winning more work but not making more money. Turnover is growing, but margins are being squeezed and you can’t identify where. This is a margin tracking problem, and it’s extremely common in construction businesses that price on experience rather than data.

Second: cashflow keeps surprising you. You’re profitable on paper but regularly short of cash. In construction, this is often a retentions and payment timing problem – money you’re owed but can’t access. Forward-looking cashflow forecasting solves this.

Third: you’re pricing new work without confidence. Every tender feels like a guess. You don’t know whether your overhead recovery is right, whether your labour rates reflect actual cost, or whether the margin you’re building in is achievable. This is a pricing strategy problem.

Consider a civil engineering contractor with a growing order book but shrinking bank balance. The owner knew something was wrong but couldn’t pinpoint it. Job-level margin tracking revealed that two contract types – groundworks on residential sites – were consistently underperforming against tender by 8 to 12 percentage points, driven by unrecovered prelim costs. Fixing the pricing model on those contract types recovered the margin within two tender cycles. Without that visibility, the business would have kept winning work at a loss.

Is a fractional FD right for a small construction business?

Yes – in fact, smaller construction businesses often benefit more than larger ones, because the owner-manager is typically carrying the entire financial decision-making burden alone. A fractional FD service gives a small construction business access to senior financial leadership that would otherwise cost £80,000 to £120,000 per year as a full-time hire, at a fraction of that commitment. The key is finding a service built specifically for project-based businesses – not a generic SME finance offering that doesn’t understand retentions, job costing, or contract cashflow.

What Does a Part-Time Finance Director Cost in the UK?

Day rates for experienced part-time Finance Directors in the UK typically range from £500 to £1,100 per day depending on experience, sector specialism, and scope of work. A traditional part-time hire at two days per week therefore carries a significant annual cost before you factor in employer’s NI, benefits, and the time spent managing the relationship.

A fractional FD service is structured differently – you’re paying for defined commercial outputs rather than time. For most construction and engineering SMEs, this means a monthly engagement that delivers live cashflow oversight, margin tracking, monthly commercial reviews, and accountant relationship management at a cost that reflects the value delivered, not the hours logged.

The more useful question isn’t what it costs – it’s what it costs you not to have it. One mispriced contract, one cashflow crisis that could have been forecast, one year of margin erosion that went undetected: these are the real costs of running a construction business without proper financial oversight.

What Changes When You Have Proper Financial Oversight: Real Outcomes

Jason Manson described the change clearly: “Bringing SMART in gave us proper control of our numbers for the first time. Real insight into cashflow, margins, and what was coming next. It took a lot of pressure off decision-making.”

That phrase – “what was coming next” – is the point. Most construction SME owners are managing their business in the rear-view mirror. Monthly accounts arrive six weeks after the period ends. By the time you know there’s a cashflow problem, you’re already in it. Forward-looking financial oversight changes the operating model entirely.

In practice, this means knowing three months in advance that a cashflow gap is coming and having time to act. It means seeing a job’s margin deteriorating at 60% completion and being able to intervene. It means walking into a tender with a pricing model built on real data rather than a number that feels about right.

The Construction Leadership Council has consistently identified financial management capability as a critical gap in UK construction SMEs. The businesses that scale successfully are those that build financial control into their operating model early – not those that wait until a crisis forces the issue.

How Smart Solutions Works as Your Fractional FD – Without Replacing Your Accountant

SMART Solutions provides fractional FD and commercial advisory services built specifically for construction and engineering SMEs. We connect directly to your existing accounting software and data sources, build live dashboards from your real numbers, and deliver structured monthly commercial oversight that turns data into decisions.

We don’t replace your accountant. We manage that relationship on your behalf, ensuring the compliance work your accountant produces is actively used to run the business – not just filed. For most clients, this is the first time their financial information has actually informed their commercial decisions.

The engagement covers cashflow forecasting, job-level margin tracking, pricing strategy, monthly commercial reviews, and accountant relationship management. Everything is built around the specific financial dynamics of project-based construction and engineering work: retentions, valuations, contract cashflow, and bid pricing.

If you’re running a construction or engineering business and want to know what proper financial oversight would look like for your specific situation, book a free introductory call with SMART Solutions. No obligation – just a direct conversation about where your numbers are and what clarity would change.

Frequently Asked Questions

What does a part-time Finance Director do?

A part-time Finance Director provides strategic and commercial financial leadership to a business on a defined part-time basis. In a construction or engineering SME, this means delivering forward-looking cashflow forecasting, job-level margin tracking, pricing strategy, and monthly commercial reviews – translating financial data into decisions that protect margins and control cashflow. Unlike an accountant, whose focus is historical compliance reporting, a part-time FD is focused on what’s coming next and what the business should do about it.

What is the difference between a part-time FD and a fractional FD?

A part-time FD is typically a person you hire on a part-time employment or contract basis – they work a defined number of days per week and you manage them as you would any employee. A fractional FD service is a managed commercial advisory engagement where you buy defined financial and commercial outputs rather than a person’s time. The fractional model means no recruitment risk, no onboarding delay, and no gap in coverage – the service is operational from day one, with the tools, systems, and sector knowledge already in place.

Can a part-time Finance Director work alongside my existing accountant?

Yes – and this is exactly how the model is designed to work. A part-time FD or fractional FD service sits above your accountant in the financial structure, taking the compliance data your accountant produces and using it for forward-looking commercial analysis. In the SMART Solutions model, we actively manage the accountant relationship on your behalf, ensuring the information flows correctly and is used to run the business rather than just satisfy compliance requirements. Your accountant keeps doing what they do well; we make sure it actually drives decisions.

How much does a part-time Finance Director cost in the UK?

Traditional part-time FD day rates in the UK range from approximately £500 to £1,100 per day depending on experience and sector specialism. A fractional FD service is typically structured around monthly engagement fees tied to defined deliverables rather than day rates, which makes the cost more predictable and directly linked to commercial outcomes. For most construction and engineering SMEs, the more relevant calculation is the cost of not having financial oversight: mispriced contracts, undetected margin erosion, and cashflow crises that could have been forecast typically cost far more than the engagement itself.