Client Testimonials
Working with the Cornerstone team has been an exceptional experience from pre-construction through final delivery. Their attention to detail, disciplined project management, and proactive communication has kept our projects on schedule and on budget. They approached challenges with solutions, not excuses, and consistently demonstrated craftsmanship that reflects pride in their work. I would confidently recommend them to any developer seeking a reliable, high-integrity prime contractor who delivers results.
Ed Webber
Parliament Companies

Cornerstone’s team consistently goes above and beyond to ensure that projects are completed on time, within budget, and to a high standard of quality. From the initial consultation to the final walkthrough, they maintain clear communication, keeping us informed every step of the way. Their attention to detail and commitment to quality workmanship set them apart.
Chris Strom
Managing Principal
Corona Partners Real Estate

It is an absolute pleasure to work with Cornerstone General Contractors LLC. Bud and his team are highly collaborative, working seamlessly with owners, consultants, and vendors to deliver an exceptional final product. Their project delivery is consistently on time and on budget, if not ahead of schedule and below budget.
Bud takes a thoughtful, proactive approach to every project, carefully analyzing the scope and schedule to identify cost and time saving opportunities. He regularly proposes cost-effective material and sourcing alternatives that benefit the client without compromising quality and he goes above and beyond to ensure complete client satisfaction.
Cornerstone’s craftsmanship is outstanding, with a strong attention to detail. Their commitment to quality and pride in execution are evident in every aspect of their work.
Most importantly, Bud Hinman is fair, honest, and trustworthy. When you hire Cornerstone, you can be confident that your project is in capable hands and that your best interests are always the top priority.
Jamie Berg
Corona Partners Real Estate

I don’t usually take the time to write public recommendations, but in this case it’s more than deserved. I have had the privilege of working with Cornerstone General Contractors on multiple educational commercial properties, specifically facilities designed to support children with special needs, and I can confidently say Walter Hinman and his team have exceeded expectations at every level. From the earliest design phase through final delivery, they demonstrated an exceptional level of professionalism, expertise, and care. They have handled everything from full buildouts to complex renovations, including HVAC, plumbing, electrical, painting, and finish work; all with a high standard of quality and attention to detail.
What truly sets them apart, is their reliability and commitment. Every project was completed on schedule, with key milestones met and occupancy dates honored, something that is absolutely critical in Early Intervention. They communicate clearly, solve problems proactively, and consistently went above and beyond to ensure each space was safe, functional, and thoughtfully built for the children and staff who rely on it.
It is rare to find a contractor who not only delivers excellent construction work but also understands the deeper impact of the environments they are helping create. Their work directly contributes to better learning and care spaces for kids who need it most, and that is something I deeply value. If you’re looking for a contractor who is dependable, detail-oriented, and truly invested in the success of your project, I highly recommend Cornerstone without hesitation.
Shavon Anderson, MBA, Director
Program Operations-Facility Integration
Elwyn of Pennsylavnia and Delaware

Olivia Martinez

Robert Wilson


