MastersTouch Construction, Inc., a Sonoma County General Contractor, has been awarded the prestigious Diamond Certified symbol after being rated highest in quality in a customer satisfaction rating performed by American Ratings Corporation.

In order to earn Diamond Certified, the company must apply to be rated by American Ratings Corporation (ARC) and pass each step of its twelve-step rating and certification process. Most companies can not pass the rating because a customer satisfaction survey score of greater than 90 on a scale of 100 is required.