Understanding Quantum Meruit in Construction Contracts

Quantum meruit, a Latin term meaning “as much as deserved”. In the construction industry, it commonly used to claim reasonable remuneration for work done or materials supplied for work that is outside the scope of the original contract or where the contract is silent on the payment for additional work. This principle is often applied in cases of variations not signed and accepted by owners.

Definition and Application

Quantum meruit operates as an implied contract, allowing builders to claim reasonable remuneration based on the value of the work done or materials supplied. 

The principle of quantum meruit is applicable where there is no agreement regarding payment for additional work or where the agreement is frustrated, avoided, or unenforceable. This might occur where variations have not been documented in accordance with the contractual provisions, or where the owner has not signed off on the changes.

Variations Not Signed and Accepted by Owners - What Does It Mean?

In construction contracts, variations refer to changes to the original scope of work. These can arise due to various reasons such as design changes, unforeseen site conditions, or the owner’s request for additional work. In most cases, variations must be documented and signed by the owner before the builder can proceed with the additional work.

However, in some cases, variations may not be documented in accordance with contractual provisions, or the owner may not sign off on the changes.This can occur for a range of reasons, such as where the owner is unavailable or unresponsive, or where the builder proceeds with the additional work without formal approval.

When variations are not signed and accepted by owners, it means that the builder may not be entitled to claim payment for the work done under the terms of the original contract. However, the builder may still be able to claim payment on a quantum meruit basis.

It is important to note that variations not signed and accepted by owners are not automatically recoverable on a quantum meruit basis. The builder must still meet the requirements for a successful quantum meruit claim, and there may be other factors that impact the outcome of the claim, such as whether the variations were essential to the completion of the project or whether they were requested by the owner.

In the following sections, we will examine the key components of a successful quantum meruit claim and provide practical advice for builders looking to recover costs for variations not signed and accepted by owners.

Recovering Costs for Variations Not Signed and Accepted by Owners

Recovering costs for variations not signed and accepted by owners can be complex. However, it is possible to claim payment on a quantum meruit basis if the builder can demonstrate the five key conditions:
ItemKey Conditions for Quantum MeruitExplanation
1.The subject building work fell outside the requirements of the contract, specifications, and other included contract documents.Builders must be able to demonstrate that the work done falls outside the scope of the original contract and any included documents. This means that the variations were not part of the original agreement and were not required to complete the project.
2.The owner had actual knowledge of the variations as they were being done.Builders must show that the owner was aware of the work being done and the changes to the scope of work. This can be demonstrated through regular communication with the owner or through written correspondence.
3.The owner knew that the variations were outside the contract.Builders must be able to show that the owner understood that the variations were not part of the original contract and were not required to complete the project. This can be demonstrated through written correspondence or through regular communication with the owner.
4.The owner knew that the builder expected to be paid for the work as a variation to the contract.Builders must show that the owner understood that the work was being done on a variation basis and that they would be required to pay for the work completed. This can be demonstrated through written correspondence or through regular communication with the owner.
5.The builder provided evidence that the amount claimed was fair value.Builders must provide evidence that the amount claimed is fair and reasonable for the work completed outside the scope of the original contract. This can be demonstrated through invoices, quotes, or other evidence of the value of the work completed.
If all five components are met, the builder may be entitled to claim payment on a quantum meruit basis. However, it is important to note that the burden of proof lies with the builder, and they must be able to provide evidence to support their claim.

Practical Advice for Builders

To successfully claim quantum meruit for variations not signed and accepted by owners, builders should follow these practical steps:

  1. Keep accurate records of all work completed and materials supplied, including any variations.
  2. Ensure that all variations are documented in accordance with the contractual provisions, and signed off by the owner wherever possible.
  3. If variations are not signed and accepted by owners, communicate regularly with the owner to ensure that they are aware of the work being done and the costs associated with it. Maintaining regular communication often helps with avoiding disputes.
  4. Provide evidence to support the claim, such as photographs, invoices, and correspondence.
  5. Seek legal advice if necessary to ensure that the claim is made in accordance with the relevant laws and regulations.

Recovering costs for variations not signed and accepted by owners on a quantum meruit basis is a complex but achievable process. By understanding the legal principles and following the key requirements, and following these practical steps, builders can increase their chances of recovering costs and ensure fair payment.

Conclusion

Each contract is unique, and navigating the complexities of variations and quantum meruit claims requires specialised knowledge.If you’re a builder facing challenges with variations not signed and accepted by owners, or need guidance on quantum meruit claims, the legal maze can be overwhelming. Don’t let these challenges hinder your project’s success.Seeking legal consultation is vital to protect your interests and ensure compliance with the law. 

As a solicitor and construction lawyer with more than 10 years of experience specialising in construction law, I have advised homeowners, builders, and contractors on their contract rights, risks, and obligations. We offer legal advice and legal representation for various residential construction matters, including Variations, Disputes, and Quantum Meruit claims. If you’re facing challenges with contract variations or quantum meruit claims, book your free first consultation with us today. We’re here to help you navigate the legal intricacies of the construction industry.