Defects Liability Period in UAE: What Contractors Need to Know

What Is the Defects Liability Period

The Defects Liability Period (DLP) — also called the Defects Notification Period (DNP) under FIDIC 2017 — is a contractual period following practical completion during which the contractor is obligated to return to site and rectify any defects that appear in the works. It is not a warranty period in the legal sense, though it functions similarly. The DLP is a specific contractual mechanism with defined procedures, timelines, and consequences.

The DLP begins on the date of practical completion (or the Taking-Over Certificate under FIDIC) and runs for the period specified in the contract. During this time, the client or the Engineer can notify the contractor of defects, and the contractor must rectify them at their own cost — provided the defect is attributable to the contractor's workmanship, materials, or design (if applicable).

The DLP is distinct from the decennial liability under UAE Civil Code (Article 880), which imposes a 10-year liability on contractors and engineers for structural defects and defects threatening the stability of buildings. The DLP is contractual; decennial liability is statutory. Both can run concurrently, and the contractor's obligations under each are independent.

At the end of the DLP, the Engineer conducts a final inspection and, if all defects have been rectified, issues the Performance Certificate (FIDIC) or the Final Completion Certificate. This triggers the release of the second half of retention and the return of the performance bond.

Standard DLP Duration in the UAE

The DLP duration varies by project type, contract form, and client requirements. Here are the standard periods you will encounter in the UAE market.

Under FIDIC 1999, the default DLP is 365 days unless otherwise stated in the Particular Conditions. Under FIDIC 2017, the Defects Notification Period is similarly 365 days by default. Many UAE clients extend this to 24 months in the Particular Conditions, particularly for government and infrastructure projects.

Be aware that some contracts allow the DLP to be extended if a significant defect is not rectified within the original period. Under FIDIC Clause 11.3, the Engineer can extend the DLP by up to 2 years for items that substantially affect the use of the works. This means your total DLP exposure could be 3 years from practical completion in a worst-case scenario.

Contractor Obligations During the DLP

During the DLP, the contractor has several specific obligations. The primary obligation is to rectify defects notified by the Engineer within a reasonable time. What constitutes reasonable depends on the nature of the defect — a leaking pipe requires immediate attention, while a paint defect on an interior wall can wait for a coordinated maintenance visit.

The contractor must maintain a responsive team capable of attending to defect notifications. On large projects, this often means keeping a small maintenance crew on site or on call. On smaller projects, the contractor may dispatch teams from their head office as notifications arise. Either way, the cost of this responsiveness must be factored into the original tender pricing.

The contractor is only obligated to rectify defects that are attributable to their work. Defects caused by the client's misuse, normal wear and tear, or third-party damage after handover are not the contractor's responsibility. However, proving that a defect was caused by the client rather than the contractor can be contentious. Documentation of the handover condition — photographs, snag list sign-offs, and condition reports — is your best defence.

If the contractor fails to rectify notified defects within a reasonable time, the client has the right to engage a third party to carry out the rectification and deduct the cost from retention or any amounts owed to the contractor. Under FIDIC Clause 11.4, the employer can also deduct the cost from the performance bond if other deductions are insufficient.

The Rectification Process

A well-managed rectification process protects both parties and ensures defects are resolved efficiently. Here is how the process should work.

Notification

The client or Engineer notifies the contractor of the defect in writing, describing the nature and location. Under FIDIC, this is a formal notice under Clause 11.1. The notification should be specific — "water ingress at basement level 2, grid line C-4" is actionable; "various defects throughout the building" is not. If the notification is vague, request clarification before mobilising.

Investigation

The contractor investigates the defect to determine its cause and whether it falls within their responsibility. If the defect is due to normal wear and tear, client misuse, or a design issue (on a build-only contract), the contractor should respond formally stating that the defect is not their responsibility and providing their reasoning. Do not simply ignore notifications — a non-response is treated as acceptance of liability.

Rectification

For defects that are the contractor's responsibility, prepare a method statement for rectification, coordinate access with the client (the building is now occupied), execute the repair, and document the completion with photographs and a signed-off inspection report. The rectification must restore the works to the standard specified in the contract — not merely patch the visible problem.

Sign-Off

After rectification, the Engineer inspects the repair and confirms it is satisfactory. This sign-off should be documented in writing. Without a formal sign-off, the defect remains "open" on the Engineer's records, which can delay the Performance Certificate and retention release at the end of the DLP.

Retention Release and the DLP

Retention is directly tied to the DLP. In a standard UAE construction contract, retention is deducted at 5 to 10 percent of each interim payment, subject to a cap (usually 5 percent of the contract sum). Half of the retention is released at practical completion. The other half is released at the end of the DLP, subject to completion of defect rectification.

On a AED 50 million contract with 5 percent retention, the total retention is AED 2.5 million. Half (AED 1.25 million) is released at practical completion, and the remaining AED 1.25 million is held until the DLP expires and all defects are rectified. In practice, retention release after the DLP often takes 3 to 6 months beyond the contractual due date.

Delays in retention release are one of the most common complaints from contractors in the UAE. Clients use retention as leverage during final account negotiations, withholding release until the contractor agrees to their final account assessment. While this is not contractually justified under FIDIC, it is a commercial reality that contractors must plan for.

To accelerate retention release, ensure all defects are rectified promptly and documented thoroughly. Submit a formal application for retention release as soon as the DLP expires, referencing the specific contractual clause. Follow up with a formal notice if the release is not processed within the contractual timeframe. If necessary, escalate through the dispute resolution mechanism.

FIDIC Clause 11: Detailed Breakdown

For contracts based on FIDIC conditions, Clause 11 governs the entire DLP process. Here is a breakdown of the key sub-clauses.

Pay particular attention to Clause 11.3 — the extension provision. If a defect substantially affects the use of the works or a section, the Engineer can extend the DLP for that section. This is not a blanket extension — it applies only to the section or part affected by the defect. However, in practice, some Engineers extend the DLP for the entire works, which is an overreach that contractors should challenge.

Frequently Asked Questions