As a construction business, understanding the intricacies of payment valuations is crucial for managing cash flow, ensuring fair compensation, and avoiding costly disputes. Payment valuations are not just administrative exercises; they play a critical role in the financial management of any construction project. This guide aims to clarify the process, focusing on interim valuations, assessing valuations, and avoiding common pitfalls like over or under-valuing work. We’ll also cover materials off-site, vesting certificates, payment on account, daywork, and variations, with guidance drawn from the Royal Institution of Chartered Surveyors (RICS) best practices.

1. Understanding Interim Payment Valuations

Interim payment valuations are periodic assessments conducted throughout a construction project to determine the amount of work completed and, consequently, the payment due to the contractor. According to RICS guidance, interim valuations are typically carried out monthly or at pre-agreed intervals, depending on the contract terms.

Key elements included in an interim valuation:

• Work completed on-site: The primary component of the valuation, including labour, plant, and materials used.
• Materials on-site: The value of materials stored on-site but not yet incorporated into the building works.
• Materials off-site: Under certain conditions, materials stored off-site can be included, provided they are sufficiently safeguarded and a vesting certificate is issued (more on this below).
• Dayworks and variations: Adjustments for additional work (variations) or work charged on a daywork basis, which must be accurately recorded and substantiated.

Interim valuations allow contractors to receive regular payments, helping them manage their cash flow and keeping the project on track financially. From the client’s perspective, interim payments ensure that payments align with the value of the work completed, minimizing the risk of overpaying early in the project.

2. Assessing Valuations

Assessing valuations requires a balance of fairness, accuracy, and compliance with the contract. The quantity surveyor plays a pivotal role in this process, ensuring that both the contractor and client are protected.

Steps involved in assessing valuations:

• Site inspections: A detailed site visit is crucial for verifying the progress of works, which is particularly important when dealing with structural or hidden elements that are difficult to quantify.
• Measurement and quantification: Accurate measurement of completed work against contract drawings, specifications, and bills of quantities.
• Evaluating materials on-site and off-site: Ensuring that the materials claimed in the valuation are either incorporated into the works or securely stored with appropriate documentation.
• Verification of variations: Checking whether variations or daywork claims have been correctly submitted and are in accordance with the contract requirements.

Over or under-valuing work can lead to financial imbalance, with contractors facing cash flow issues or clients overpaying, leaving little financial buffer for later stages of the project. For this reason, the RICS encourages impartiality and transparency in the valuation process.

3. Over/Under Valuing Work and the Implications

Over-Valuing:

When work is overvalued in interim valuations, it poses several risks:

• Overpayment: The client may pay more than the actual value of the completed work, potentially leaving insufficient funds for later stages. This imbalance can become particularly problematic if the contractor experiences financial difficulty or the project encounters delays.
• Loss of leverage: The client loses financial leverage in ensuring the project is completed to standard if a significant portion of the contract sum is paid too early.

Under-Valuing:

Under-valuing can also cause significant issues:

• Cash flow issues: If a contractor receives less than the value of the work completed, it can lead to cash flow problems, possibly resulting in delays, subcontractor disputes, or insolvency.
• Contractual disputes: Repeated under-valuing can create tension between the client and contractor, potentially leading to disputes that could escalate to adjudication or litigation.

To mitigate these risks, the RICS advises careful assessment and regular communication between all parties involved, ensuring valuations accurately reflect the state of progress.

4. Materials Off-Site

Materials stored off-site present unique challenges in payment valuations. While these materials may be integral to the project, they have not yet been incorporated into the works, making them a risk for both the contractor and the client. The inclusion of off-site materials in interim valuations is often subject to the following conditions:

• Vesting certificates: A vesting certificate is a legal document that transfers ownership of the materials from the contractor to the client. It ensures that the client has a legal claim to the materials, even if they remain off-site, safeguarding against contractor insolvency or the risk of those materials being used elsewhere.
• Adequate storage: The materials must be stored securely and be clearly identifiable as intended for the project in question.
• Insurance: Materials stored off-site should be adequately insured to protect against loss, theft, or damage.

By including materials off-site in the valuation, contractors can maintain a positive cash flow while ensuring that the client is protected by vesting arrangements.

5. Payment on Account

Payment on account refers to an advance payment made to the contractor before work starts or early in the project. It is typically used in circumstances where significant upfront costs are required, such as the procurement of materials or hiring specialist equipment.

While payment on account can be beneficial in getting the project moving, it also carries risks:

• Over-reliance on client funds: Clients must ensure that these payments are justified and necessary to avoid over-funding the project from the outset.
• Risk of contractor insolvency: In the unfortunate event of contractor insolvency, advance payments may be difficult to recover, which is why it’s essential to mitigate this risk through performance bonds or parent company guarantees.

6. Daywork

Daywork is a method of measuring and valuing work that is difficult to quantify through traditional methods, typically for small, unplanned tasks that arise during a project. Under a daywork arrangement, the contractor is paid based on the time spent and the materials used.

While daywork can offer flexibility, it must be carefully managed to avoid disputes:

• Record keeping: Contractors must maintain accurate records of labour, plant, and materials used. These records should be submitted regularly for client approval.
• Monitoring costs: Daywork can be expensive, so the client’s quantity surveyor must carefully monitor its use to ensure it does not disproportionately inflate project costs.

7. Variations

Variations are changes to the original scope of work outlined in the contract. These can arise for several reasons, such as design changes, unforeseen site conditions, or changes in regulations. Variations must be managed with care to ensure that they do not lead to disputes or unnecessary cost increases.

Key points in managing variations:

• Early identification and documentation: Variations should be identified as early as possible and clearly documented, including details of the additional work required and the reason for the change.
• Valuing variations: Variations must be valued based on the contract rates where possible, or by negotiation if the work falls outside the original scope.
• Approval process: Variations should only proceed once approved by the client and the necessary contractual documentation has been completed.

8. Key Elements Included in an Interim Valuation

When preparing an interim valuation, it is essential to understand the various components that must be assessed to ensure a fair and accurate valuation. Interim valuations serve as a snapshot of the project’s financial progress at a particular point in time. Below are the primary elements that should be included in an interim valuation:

1. Preliminaries (Prelims)

Preliminaries refer to the costs related to the general site overheads and management of the project that are not directly attributable to any specific work section. These costs typically cover:

• Site establishment: Set-up costs, including site offices, welfare facilities, and fencing.
• Site management: The cost of site staff, including project managers, engineers, and supervisors.
• Temporary works: The cost of any temporary structures or utilities required for the project, such as scaffolding, hoarding, or temporary access roads.
• Health and safety: Costs related to compliance with health and safety regulations, including signage, personal protective equipment (PPE), and safety training.

These costs are typically spread throughout the project and are included as a percentage or lump sum in each interim valuation, reflecting the stage of the project.

2. Measured Work

Measured work refers to the construction work that has been completed to date. This is typically the largest component of an interim valuation and is measured against the contract’s Bills of Quantities or Schedule of Rates.

• Work completed: This includes the value of the labour and materials used for work that has been completed on-site.
• Progress measurement: Work is usually valued based on actual progress, either by measuring the quantities completed or as a percentage of the overall task. For example, if 50% of the foundation work is completed, 50% of the value of that item will be included in the interim valuation.

Accurately measuring and valuing completed work is vital to ensure both the client and contractor receive fair and just payments.

3. Variations

As mentioned earlier, variations are changes to the scope of work, whether due to client instructions, design changes, or unforeseen circumstances on-site. The value of variations must be carefully assessed and added to the interim valuation as and when they occur.

• Valuing variations: Variations should be measured and valued according to the contract’s agreed rates or, if no such rates exist, through negotiation based on the actual cost incurred.
• Approval: It is critical that variations are approved by the client before they are included in the valuation to avoid disputes later.

4. Materials On-Site

Materials on-site are those that have been delivered to the site but have not yet been incorporated into the construction works. These materials are essential for ongoing work, and including them in interim valuations can provide financial relief to contractors, who would otherwise have to bear the upfront cost of procurement.

• Storage and security: Materials must be stored securely on-site and identified as intended for the project.
• Valuation: The value of materials on-site is usually based on the supplier’s invoice or agreed rates, less any applicable discounts. Care must be taken to ensure that these materials are only valued once and are included in the valuation of completed work as they are used.

5. Materials Off-Site

As discussed, materials stored off-site can also be included in interim valuations under certain conditions.

• Vesting certificates: A vesting certificate must be in place, transferring ownership of the materials to the client to protect their investment.
• Storage: Materials must be stored appropriately and identifiable as intended for the project.

Including off-site materials helps contractors avoid cash flow problems caused by large upfront costs for materials that have yet to be incorporated into the project.

6. Retention

Retention is a percentage of the payment withheld by the client as a safeguard to ensure the contractor completes the work to the required standard. Retention typically amounts to 3-5% of the value of each interim payment and is released in two stages:

• Practical completion: When the project reaches practical completion, a portion of the retention (often 50%) is released to the contractor.
• End of defects liability period: The remaining retention is released at the end of the defects liability period, once any identified defects have been rectified.

Retention ensures that contractors remain incentivized to complete the work satisfactorily and correct any defects that arise after practical completion.

7. Design Fees

If the contractor is responsible for design work, the fees associated with the design process should be included in interim valuations. This is particularly relevant for design and build contracts where the contractor is tasked with both the design and execution of the works.

• Progress-based: Design fees can be valued based on milestones achieved in the design process, such as the completion of detailed designs, structural drawings, or regulatory approvals.
• Provisional sums: In some contracts, design fees may be included as provisional sums that are adjusted as the design work progresses.

9. Overheads and Profit (OH&P)

Overheads and profit are included in the contractor’s pricing and cover the contractor’s general business costs and their profit margin. Overheads include:

• Corporate expenses: Head office costs such as administration, insurance, and marketing.
• Fixed costs: Costs not tied to any specific project but necessary for the business’s overall operation.

Profit is typically expressed as a percentage of the total value of work completed and materials on-site or off-site. Both overheads and profit are applied to variations, dayworks, and other chargeable items within the project.

Conclusion

Payment valuations are an essential part of ensuring the financial health of construction projects, providing a mechanism for contractors to be paid fairly and on time, while protecting the client from overpaying. By adhering to RICS best practices, maintaining clear communication, and carefully managing elements like materials off-site, daywork, and variations, both contractors and clients can ensure smoother project delivery.

If you’re a UK-based construction business seeking specialist advice on payment valuations or other quantity surveying matters, don’t hesitate to reach out to our consultancy. We are here to help you navigate these complex issues and protect your business interests.