1. Design Defects

Some defects result from a design professional’s failure to produce accurate and well-organized construction documents. Design defects occur by error or omission. Errors usually require some sort of redesign and replacement of a component part, while omission can be remedied by adding to a contractor’s scope of work through change orders.

2. Material Defects

When the damage is caused by defective materials, the parties in charge of using these materials usually won’t become aware of the defect until after they’ve already been incorporated into the project. This makes material defects particularly expensive because they may require additional labor and new materials.

3. Workmanship Defects

The workmanship defects may or may not affect the entire structure, often times they're isolated to a single part of the house. On the other hand, structural defects are much more serious and can be catastrophic, bringing down an entire house.