PRGX Construction Services can provide construction audit services even if we have not been engaged it the pre-construction or construction phases of your project. We can review the agreements, perform a contract risk assessment, and audit the final billings to find miscalculations and charges that are not contractually allowable or consistent with industry standards. We typically find average error rates around 0.5%. on large construction projects and 2.5% on small projects. Results will depend on contract terms, the types of construction projects and the specific general contractors you have selected for your project.