We understand that navigating the process of civil engineering, permitting, and applications is very complicated and comprehensive for small companies and individuals. With a passion for engineering, a strong work ethic, and attention to detail, COY Engineering Services LLC will strive to achieve every customer’s goals.
About Us
COY Engineering Services LLC of Mount Pleasant, SC, was started in 2022 by Derek McCoy, providing freelance civil design and plan review services for a consultant and a small city in Western Washington when he and his family relocated to South Carolina. In 2025, he left his position as Principal Engineer in Dorchester County Public Works to form an up-start veteran-owned and operated firm to meet the commercial and residential Civil Engineering and construction permitting needs of communities in Charleston, Berkeley, and Dorchester counties.
Derek McCoy is a graduate of Colorado State University, retired after 20 years of service in the US Army, and has worked in many private and public capacities. More information can be found by visiting his LinkedIn Profile.
Services
Commercial Civil Engineering
COY Engineering Services LLC can provide a full range of Commercial Civil Engineering and Project Management services that include but are not limited to the following:
- Civil Engineering Design
- Civil Stamped Drawings
- Commercial Project Designs
- Commercial Project Management
- Conceptual Designs
- Permitting and Land Use Applications
- Water Management Systems
Residential Civil Engineering
COY Engineering Services LLC can provide a full range of Commercial Civil Engineering and Project Management services that will professionally guide you through the whole civil process from pre-application through full civil approval.:
- Residential Civil Engineering Design
- Infrastructure
- Permitting and Project Approval
- Project Reports
- Residential Project Management
Permitting and Land Use Applications
Based upon preliminary meetings and talks with jurisdiction officials, we fill out and submit all required permits and applications for your project. Some of these can include:
- SEPA
- Grading and Drainage
- Utility Connection Applications
- Master Applications
- Stormwater Maintenance
- And More!
Civil Stamped Drawings and Reports
COY Engineering Services LLC will professionally create and produce civil stamped drawings and reports.
- Attention to Detail on Plans
- Follow Codes Exactly
- Deliver in a Timely Manner
- Defend our Clients Against Jurisdictional Overrun