Superior Supplies, Inc. Comparative Summary

Few construction material providers earn the prestigious Diamond Certified award, which means they’ve been independently rated Highest in Quality. Even fewer can also claim more than 50 years of industry experience, but that’s exactly the case for Superior Supplies, Inc. “This company has a lot of history, tradition and pride,” says Shannon Sundberg, head of the Human Resources department. “We’re very old-school in the way we do business. In the past, businesses gave customers their word and followed up on it, and we believe in continuing that tradition.”

Superior Supplies provides an array of ready-mix concrete products for residential and commercial clients in Sonoma, Napa and Marin Counties. The family-owned and operated company creates custom mixes for all types of concrete building projects, using a computerized batching system to meet particular size and color specifications. It also manufactures landscaping blocks for retaining walls, privacy walls and other structural projects.

Unlike construction material providers that deemphasize the importance of customer service by dealing with customers on the phone instead of in person, Superior Supplies assigns an onsite technician to each project who conducts an in-depth inspection before making product suggestions—a comprehensive approach to quality control that has earned the company a reputation for providing excellent customer satisfaction. “We’re very punctual and deliver exactly what our customers order,” adds Mr. Tonelli. “Our customer service far exceeds that of our competitors.”

Another distinguishing attribute of Superior Supplies is its unyielding commitment to product quality. “We do a lot of concrete mixes for Cal Trans, and when we pour for them, one of our technicians is present to make sure the product is correct,” explains Vice President Stephen Tonelli. “If it’s not, we don’t wait for the customer to reject it—we’ll reject it ourselves, send the truck away and bring in another. Getting every aspect of every project right is very important to us.”