The Cornerstone Group is the area's premier Property Service Company. Specializing in the fields of Construction Management, ... Security, Janitorial, Lawn Maintenance, Commercial Painting & Water Proofing & Pool maintenance. We pride ourselves on having strict standards when it comes to the handling of your property needs. We are a full-service company, with over 20 years of experience in property maintenance. Our company opened its doors with the desire to help our clients, property managers and Board of Directors consolidate their property maintenance needs and provide a one-stop solution for handling the day to day needs of our clients. read more