Four Companies Earn Diamond Certified Status in October 2026
Diamond Certified Resource has announced that four service providers—Cordoza Electric, MaksBuilder, Professional Plumbing Inc., and Radvand Construction—have earned the Diamond Certified award for October 2026. To achieve this status, companies must score a 90 or higher on a 100-point scale based on a rigorous 12-step certification process involving verified customer surveys regarding quality and expertise. The certification methodology relies on random sampling of real customers via telephone and email to ensure accuracy. Awarded companies are required to adhere to specific customer satisfaction principles and undergo ongoing monitoring to maintain their standing. This announcement highlights the latest cohort of local service businesses meeting these high-performance standards in sectors such as electrical, HVAC, plumbing, and construction.
Topics: Business Certification Customer Satisfaction Industry Awards