- Foundations not been dug deep enough
- Concrete not been installed to correct thickness
- Drainage not been installed correctly
- Floors that have not been levelled
- Brickwork not level or plumb
- Incorrect insulation used
- Windows and doors not installed correctly
- Internal doors not installed correctly
- Incorrect number of brick courses
- Roof covering has not been installed to the correct specification
- Electrical work not to building regulations
- Plumbing and gas not to building regulations
- Rubbish not cleared away from site