What does a quantity surveyor do in 2025?

What does a quantity surveyor do

According to the latest S&P Global UK Construction Purchasing Managers’ Index (PMI) survey, total industry activity in the UK construction sector has fallen at the sharpest rate in more than five years.

Despite this drop in PMI from 48.8 in June to 44.3 in July, recruitment agencies are confident that there remains a strong demand for quantity surveyors, but why?

Far more than simply cost managers, today’s quantity surveyors are strategic advisors who help shape the success of construction projects from day one.
Over time, their role has evolved to include sustainability guidance, procurement strategy, and risk mitigation – increasing the demand for chartered quantity surveyors across the UK.
Whether you’re considering a career in this industry or seeking expert support for an upcoming project, one thing is clear – the value of professional quantity surveying services has never been greater.

An overview: What does a quantity surveyor do?

·       Pre-planning support

·       Project feasibility services

·       Cost estimation

·       Budget management

·       Negotiation and contract administration

·       Procurement strategy

·       Support client decision making

·       Risk management

Pre-planning support

Quantity surveyors can play a crucial role in the success of a construction project – long before planning permission is sought, an architect is appointed, or a contractor is hired.

By seeking guidance from a quantity surveyor early on, clients can reduce the risk of requiring costly redesigns later and ensure the entire project team is aligned on a proposal’s goals and scope from the outset.

Project feasibility services

By carrying out feasibility studies, quantity surveyors offer invaluable insights on project costs, timelines, and risks, helping their clients to determine whether a project is even feasible before any money is spent on design or construction

Factors such as site conditions, access requirements, and market risks can all have an impact on the viability of a construction project. By identifying any potential problems early on in the process, quantity surveyors can encourage clients to make more informed decisions and avoid costly surprises down the line.

Cost estimation

Cost estimation has long been one of the key responsibilities of quantity surveyors, involving a detailed analysis of the required materials, labour, overheads, profit margins, and permits by reviewing project drawings and specifications.
Today, many quantity surveyors now utilise cost modelling tools which are informed by large, constantly updated databases of building data to improve the accuracy of their estimates.

This integrated approach also accounts for a range of cost drivers, such as location-specific factors, inflation, and risk allowances, to deliver reliable, data-driven project cost estimations.

Budget management

At quantity surveyor’s financial responsibility extends well beyond the cost estimation stage. In fact, these professionals are experts at allocating budgets across every element of the build, ensuring costs remain aligned with the evolving design.

If the budget is creeping up, the scope changes, or the client requires a financial update, the quantity surveyor is on hand to spot overspending, adjust budgets to incorporate any adaptations, and provide comprehensive cost reports.

Negotiation and contract administration

Legal and financial disputes between the project client and their subcontractors or suppliers can be costly and disruptive, creating unwanted delays. That’s why quantity surveyors play an important role in evaluating contractor bids and leading commercial negotiations.

Once terms have been agreed and the most suitable contract type selected, the quantity surveyor will prepare the tender documents. They’ll ensure the payment terms are fair, each party’s obligations are clearly defined, and responsibilities are properly allocated.

This proactive approach helps to minimise the risk of misunderstandings and future disputes by reducing ambiguity and fostering open communication.

Procurement strategy

Procurement is so much more than simply sourcing materials and suppliers – when a quantity surveyor gets involved, it becomes a long-term, strategic undertaking.

Instead of automatically opting for the most affordable supplier, contractor, or consultant, an experienced quantity surveyor will evaluate the pros and cons of each solution, balancing value, quality, and risk.

As the project progresses, further procurement may be required, such as specialist packages or subcontractors. A quantity surveyor ensures every procurement decision stays aligned with the project objectives and budget, helping to avoid delays and cost overruns.

Support client decision-making

Given their involvement in almost every aspect of a project, from cost management and procurement to risk mitigation, dispute resolution, and even technology integration, quantity surveyors are well-equipped and uniquely positioned to advise their clients on a wide range of strategic decisions.

Among many others, this can include selecting the most appropriate contract forms, identifying optimal procurement routes, and recommending design options aligned with the client’s priorities, whether those are related to cost, sustainability, or performance.

Risk management

While there’s no way to eliminate all project risks, they can be identified, managed, and mitigated – and that’s exactly where quantity surveyors add real value.

They conduct historical data analysis and closely monitor market risks and trends, such as labour shortages, inflation, and supply chain disruptions, to help identify potential risks and implement effective mitigation strategies.

This proactive and tailored approach to risk management is vital to safeguarding budgets, timelines, and overall project viability, enabling clients to anticipate and plan for risks rather than simply respond to them.

How and why is the role evolving?

How the role of a quantity surveyor is evolving

 

Technological advancements

Thanks to the technological advancements of the 21st century, quantity surveyors can now leverage a wide range of data-driven processes and specialised digital tools to enhance the accuracy and reliability of various services they provide

These technologies enable real-time updates, facilitate simulations of various outcomes, and support quick communication, helping quantity surveyors to operate more efficiently and make more informed decisions.
Examples of these digital tools include Building Information Modelling (BIM) – a collaborative way of creating and managing a construction project throughout its whole life cycle, the sustainability assessment method – Building Research Establishment Environmental Assessment Methodology (BREEAM), and data-driven 5D cost modelling.

Budget pressures and margin risk

Following rising labour and material costs, combined with growing economic uncertainty in the UK (as outlined in a recent economic update from the House of Commons Library), there’s greater pressure on quantity surveyors to deliver accurate cost planning and robust contract management.

These cost escalations not only put added pressure on project margins and stretch client budgets, but they also introduce greater financial risk, including the potential for unpaid supply-chain debts following high-profile contractor collapses.
With greater involvement in early decision-making and procurement, UK quantity surveyors can guide their clients through an increasingly complex and volatile construction landscape, evolving their role from cost controllers to vital strategic advisors.

Greater focus on sustainability

With the UK government’s commitment to achieving Net Zero carbon emissions by 2050, the construction sector has been impacted by more stringent building regulations aimed at enhancing energy efficiency and sustainability.

As a result, modern quantity surveyors are playing an increasingly critical role in driving sustainable practices. From reducing waste to integrating sustainable, eco-friendly materials across all stages of a project, they use a combination of specialised software, established industry frameworks, and environmental assessment tools to support these aims.

Long-standing skills shortages

According to the large housing association, Places for People, the UK construction sector is facing a severe skills shortage – citing over 140,000 job vacancies that are actively preventing the development of both essential housing and infrastructure projects.

From project managers to cost estimators, it’s becoming increasingly difficult to obtain the necessary expertise in every required field. This shortage has meant that quantity surveyors are being asked to step into roles typically occupied by other professionals, particularly managerial and strategic positions.

By offering early advice on phasing, sustainability, and lifecycle costs, today’s multi-skilled quantity surveyors are increasingly recognised as project leaders and trusted advisors, surpassing their traditional role as cost estimators.

Kingsmead Consultants – more than cost managers

At Kingsmead Consultants, we’re not just chartered quantity surveyors – we’re your trusted strategic partner in construction project success.

From feasibility assessments and cost control to minimising delays and managing risk, our expert team supports architects, builders, developers, and homeowners with tailored, professional advice at every stage.
We recognise that no two construction projects are the same. That’s why we take a tailored approach, applying smart, strategic solutions to meet your specific objectives – both on time and within budget.

Ready to get started? For a no-obligation consultation:

Call us on 01270 323 515

About Us

Tim Hamlett of Chartered Quantity Surveyors, Kingsmead Consultants

Tim Hamlett,  BSc (Hons),  MSc,  FRICS,  MACostE
Founder & Director – Kingsmead Consultants

Tim Hamlett is a Chartered Quantity Surveyor and highly respected commercial consultant with over 20 years of hands-on experience delivering complex, multi-million-pound construction projects across the UK. As the founder and driving force behind Kingsmead Consultants, Tim brings a strong track record in commercial leadership, cost control, and dispute resolution across residential, commercial, and mixed-use developments.

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