Typically they service all brands. This term is not used. Air Quality Service Air testing, duct cleaning, and consulting. Appraisers Covers antiques, art, jewelry, silver, real estate, equipment. Includes an ad for the American Society of Appraisers.
Several vendors mention certification or professional memberships.
A few appraise books, stamps, etc. A few vendors offer appraisal and restoration services. Vendors may mention archival or museum standards and membership in professional organizations. Services may include restoration from fire, smoke, and flood damage. A vendor selected should follow AIC guidelines.