Introduction to Building Defects
Defective work is one of the most common sources of dispute in residential construction, yet many homeowners are unclear about what legally constitutes a defect. This is exemplified by how many homeowners use independent inspectors. Under a Victorian domestic building contract, a defect is defined by reference to the warranties set out in section 8 of the Act, as well as any failure to meet the standard or quality of work required under the contract itself. This means defective work can be assessed in at least two ways. It can arise because the work breaches the statutory warranties, or because it fails to comply with the specific standards, descriptions, or requirements written into the contract documents.
A domestic building contract can, and often does, expressly state the standard or quality of work required. These requirements are usually found in the specifications and sometimes in special conditions. Where a contract sets a particular standard, that standard becomes the benchmark for assessing whether the work is defective, regardless of whether the work might otherwise appear acceptable.
A practical way to understand this is by looking at plasterboard finishes. In most homes, internal walls and ceilings require a level four finish. This level of finish is suitable for painted surfaces and living areas where lighting conditions can highlight imperfections. In contrast, garages typically only require a lower standard, such as a level two finish. A level two finish may be entirely compliant in a garage, but the same finish inside the main living areas of a home would usually be considered defective if the contract requires a level four finish. The same workmanship can therefore be defective in one part of the building and compliant in another, depending on what the contract specifies. That’s why knowing what the contract says is vital.
Paint systems provide another clear example. Many contracts require a three-coat paint system, which usually consists of an undercoat followed by two top coats. In some cases, ceilings may be specified as having an undercoat and a single top coat, while walls receive the full three coat system. A two-coat system, such as a tinted undercoat with one top coat, may look acceptable to the untrained eye. However, if the contract specifies a three-coat system and only two coats are applied, the work is defective even if there are no obvious visual blemishes. The defect arises not from appearance, but from failure to comply with the contractual requirement.
This distinction is important because homeowners often assume that work is only defective if it looks poor or causes a problem. Under a domestic building contract, that is not the case. If the contract requires a particular material, system, or level of finish, the builder must provide exactly that. Compliance is measured against the contract and the statutory warranties, not against what might be considered “good enough” in general terms.
The statutory warranties in section 8 of the Act underpin this approach. They impose minimum standards relating to workmanship, materials, suitability for purpose, and compliance with laws. These warranties operate alongside the contract and provide a baseline level of protection for homeowners. Where the contract imposes higher or more specific standards, the builder is bound by those standards as well. A homeowner is entitled to specify the standard or quality they want in the finished house.
Understanding defective work therefore requires careful reference to both the contract documents and the statutory framework. Plans, specifications, and written descriptions of finishes are all important. What may appear to be a minor detail at the time of signing can become decisive later when assessing whether work complies with the contract.