Welcome to Regional Appraisal Service! Regional Appraisal Service provides both residential and commercial appraisal services. Our company also performs professional reviews of third-party appraisals and advises real estate investors and developers. We have two State-Licensed appraisers and one State-Certified General appraiser. Our primary service area being the upstate of South Carolina which includes Greenville, Spartanburg, Anderson and Pickens Counties.