- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 01 Oct 2020
The term 'warranty' can have a number of meanings, but in general, it refers to a legally binding assurance or promise.
Warranties may be used to provide assurance from one party to another that goods and/or services will meet certain expectations, e.g. fit for purpose, being free from defects, complying with statutory and other regulations and specifications.
A warranty can be either express (i.e. written) or implied.
A common form of warranty, and one that is paid for, is that which runs with a product, meaning that the customer of a product is given an assurance by the manufacturer that any defects or losses will be repaired or compensated during a given period. The warranty can also detail both parties’ rights and obligations in the event of a dispute.
Defects in buildings are not recoverable in tort (only as a contractual claim), as they are economic loss which are only recoverable through a contractual relationship. As a result, collateral warranties have been developed. These provide for a duty of care to be extended by one of the contracting parties to a third party who is not party to the original contract.
A typical example is an architect of a new development agreeing to a duty of care to the occupant. Privity of contract rules would prevent any liability arising between the architect and occupier without the existence of a collateral warranty.
- Fitness for purpose.
- Reasonable skill and care.
- Workmanlike manner.
- Good faith.
- Reasonable endeavours.
- Best endeavours.
- Duty of care.
 Related articles on Designing Buildings Wiki
- Bonds v guarantees.
- Breach of contract.
- Collateral warranties.
- Definition of collateral warranty.
- Difference between collateral warranties and third party rights.
- Fit for purpose.
- Miller Act.
- Performance bond.
- Practical considerations of collateral warranties.
- Professional consultant's certificate.
- Reasonable skill and care.
Featured articles and news
CLC provides guidance related to product marks, post-Brexit.
Net zero goals incorporated into plans for a new European Bauhaus.
BREEAM offers its resilient approach to Building Back Better.
Country moves one step closer to creating independent body.
BSRIA examines factors driving the industry.
Ensuring designs are developed, validated and can be effectively implemented.
The Homebuyer Survey most suitable for newer homes or simple properties.
Health and safety practices for body and mind.
28 leading bodies set out their vision for the future.
Chancellor announces latest Winter Support packages.
Tapping technology to boost infrastructure and create jobs.
4 ways to ensure certificates are valid.
White elephant construction projects.
How Paul Williams bent over backwards to overcome racial barriers.