In industrial factory construction projects, design is not only the starting point but also a critical factor that determines the quality, progress, and long-term operational efficiency of the facility. However, not all drawings are flawless when implemented in reality. Therefore, having a factory design warranty policy has become increasingly essential to protect the investor’s rights and enhance the responsibility of the design consultancy unit.
In this article, BIC will help you better understand the concept of a design warranty, the conditions under which it applies, and the resolution process when issues arise, so you can choose a professional design partner to accompany you effectively throughout the project lifecycle.
A factory design warranty is a commitment from the design consultancy to ensure the accuracy, completeness, and technical compliance of the design documents within a specific period after delivery. If, during construction or operation, the investor detects any errors originating from the design, the consultancy is responsible for correcting, revising, or providing clarification as stipulated in the contract.
This differs entirely from construction warranties, which relate to material quality and the actual built structure. Design warranties apply only to the drawings and technical documents provided by the consultancy.
Typically, design warranties cover the following categories:
- Architecture: layout plans, perspectives, functional space arrangements.
- Structural: beams, foundations, floors, load-bearing connections.
- MEP systems: electrical, plumbing, ventilation, and HVAC systems.
- Fire protection: fire alarm and suppression systems in accordance with current standards.
Providing a design warranty not only demonstrates professional responsibility but also reflects the credibility and expertise of the design consultancy in industrial factory projects.
A factory design warranty is not just a legal clause in the contract—it is a key element that ensures long-term quality and investment efficiency for the owner. Specifically, having a design warranty policy offers the following important benefits:
A clear warranty policy gives the investor the right to request revisions when technical errors or discrepancies among project components are discovered. This helps prevent construction mistakes and ensures that the final build aligns with the approved plan.
A minor design flaw can lead to major repair costs during or after construction. Thanks to the design warranty, investors can rest assured that emerging issues will be resolved promptly, minimizing financial risks and project delays.
A commitment to warranty reflects the consultancy’s professionalism and accountability. A company willing to stand behind its designs demonstrates experience, capability, and market trustworthiness.
To ensure the warranty policy is valid and enforceable, both the investor and the consultancy must adhere to specific conditions and principles, usually defined in the design contract or attached appendices.
The warranty period varies depending on the project scale and type, generally ranging from 6 to 24 months from the date of design document handover or project acceptance. For larger projects, a longer warranty period may be negotiated.
- The design documents must be prepared by a legally recognized entity and approved by a licensed professional.
- The project must be constructed strictly according to the approved design without unauthorized changes.
- A signed acceptance report for the design documents must exist, confirming mutual agreement on scope and quality.
- The detected issue must be a technical fault originating from the design, verified through on-site inspection and document review.
- The investor or contractor unilaterally modifies the drawings or technical solutions without the design firm’s approval.
- Errors result from improper construction or the use of non-standard materials.
- Damage caused by force majeure (e.g., natural disasters, external impacts) or unrelated incidents.
- Issues raised after the contract’s warranty period without prior notice or formal documentation.
Complying with these conditions not only protects the investor’s interests but also ensures transparency and professionalism in the working relationship between both parties.
If a design-related issue arises during construction or operation, the investor has the right to request the consultancy to perform warranty work as committed. A typical factory design warranty process involves the following steps:
The investor sends a formal letter or email detailing the issue, affected areas, and relevant documentation (drawings, site photos, construction logs, etc.).
Initial responses are usually expected within 24–72 business hours, depending on the contract.
The design firm dispatches technical personnel to the site to investigate and compare the issue with the approved design documents.
The goal is to determine whether the issue falls within the scope of the warranty (i.e., design error vs. construction/operation fault).
If a design error is confirmed, the consultancy will provide a specific resolution plan, which includes:
- Updated drawings (CAD/PDF format).
- Technical instructions for on-site implementation.
- Practical solutions aligned with the current construction status.
Once the remedial plan is agreed upon, the design unit updates the documents and hands them over to the investor.
These documents typically include legal signatures, stamps, and date of issue.
Both parties create and sign a warranty completion report, including any revised documents, as a legal reference.
Following this process helps avoid disputes and demonstrates the consultancy’s commitment throughout the project’s lifecycle.
Selecting the right design consultancy is crucial to ensuring construction quality and peace of mind throughout the project. A reputable firm not only provides optimized drawings but also offers a transparent warranty policy and timely support for any necessary adjustments.
- Legal certification and valid professional licenses: Ensures capability and legal accountability.
- Proven experience across various factory types: From light manufacturing to specialized facilities such as pharmaceuticals, food processing, and cold storage.
- Clear, contract-based warranty policies: Reflects responsibility for intellectual products and client protection.
- Prompt technical support and transparent warranty process: Prevents being "left behind" when post-design issues arise.
In factory construction projects, the design documents are the foundation for technically accurate, cost-effective execution and efficient operations. Therefore, the design warranty is not just a contractual clause but also a tool to safeguard investor rights and prove the consultancy’s professionalism.
To ensure peace of mind from design through operation, choose partners with proven capacity, experience, and a clear warranty commitment. Contact BIC for industrial factory design consulting and legal support!
