Perth College had engaged a local plumber to undertake changes to the heating system within two lecture rooms upon their campus. The College considered that the works, once completed, did not offer good value for money and furthermore the time taken from commencement to completion appeared to be greater than necessary. In addition, the cost of materials was also considered to be excessive.We examined the time sheets and job sheets provided by the contractor and arrived at own own estimate of the hours required. Our spreadsheet of the timesheets submitted showed a number of anomalies regarding the hours worked and the number of staff supposedly on site.We then calculated the Regulation compliant materials that would be required to complete the installation and researched local suppliers who could offer the required materials for the project, and the prices applicable. We discovered that suppliers local to Perth could supply the required materials at a significantly lower cost than that charged by the contractor.The report provided by RAH Consultancy concluded that the cost of the works approximated to £3,000 against the contractors invoice for approximately £5,500. The contractor settled with the College on the terms suggested by us.