Our Team

Kent Diebolt

Kent Diebolt, FAPT

Founding Partner

Kent founded Vertical Access in 1992—pioneering the use of industrial rope access on buildings in the United States. He leads project teams and travels nationwide presenting to architecture and engineering firms, government agencies, and universities about the use of rope access in the restoration and maintenance processes of historic buildings. He has served as President of the Association for Preservation Technology International (APTI) from 2001 – 2003.

Contact Kent at kent @ vertical-access.com or 607-227-3366.

Kelly Streeter

Kelly Streeter, PE


Kelly is a licensed structural engineer and partner-in-charge of nondestructive evaluation and access consulting projects on buildings, bridges, and dams. She also leads the development of TPAS® documentation services. Kelly is chairperson for the American National Standards Institute (ANSI) Z359.9 subcommittee on Personal Equipment for Protection Against Falls. She is a frequent presenter at industry associations, a lecturer at graduate level historic preservation university programs, and a SPRAT-certified Level III rope access supervisor.

Contact Kelly at kelly @ vertical-access.com or 917-749-0998.

Evan Kopelson

Evan Kopelson, AIC


Evan is an architectural conservator with over twenty years of experience in the documentation and investigation of historic buildings. He is partner-in-charge of teams performing existing condition surveys, in situ testing services, and the characterization of building materials and finishes on buildings, bridges, and dams. Evan oversees the production of all project reports and deliverables. Evan is a member of the ASTM Committee E06 on Performance of Buildings, and a SPRAT-certified Level I rope access technician.

Patrick Capruso

Patrick Capruso


Patrick joined Vertical Access in 2016. Prior to Vertical Access, Patrick was employed at Boston Valley Terra Cotta as a production finisher, shaping clay for architectural ornamentation. Projects ranged from the restoration of historic landmarks to the manufacturing of abstract elements for contemporary design. His experience, skill and keen eye for recreating architectural ornaments translates into detailed technical documentation of building conditions at Vertical Access. In addition to on site field work, Patrick’s responsibilities include project coordination and preparation of final report deliverables. He is a SPRAT-certified Level III rope access supervisor.

Daniel Gordeyeva


Daniel Gordeyeva joined Vertical Access in 2019. A tree climbing instructor with Cornell Outdoor Education, Daniel assists with AutoCAD and manages the company’s Unmanned Aircraft Systems (UAS, or drone) program. He graduated from Rensselaer Polytechnic Institute, majoring in Sustainability Studies and Economics. He has also served as a Back Country Steward with the New York State Department of Environmental Conservation and as an Operations and Maintenance Solar Electrician with ETM Solar works. He is a SPRAT-certified Level III rope access supervisor.

Tuli Kuckes


Tuli Kuckes has joined the firm as a Technician and Preservation Technician. He is a graduate of Skidmore College and the National Outdoor Leadership School, served as a High Ropes Course instructor, and has his Wilderness First Responder certification. He is a SPRAT-certified Level III rope access supervisor.

Lauren Ottersten


Lauren has been involved in industrial rope access and work at height in the NYC metro and surrounding areas since 2011. For seven years she worked for a contractor that specialized in rope access methods where she was involved with rigging, project planning and building inspections.

Since 2018 she was an industrial rope access specialist for several architectural and engineering firms, performing facade inspections using industrial rope access and other means, as requested. Inspections were primarily for compliance with New York City’s Facade Inspection Local Law 11 or Safety Program (FISP) regulations.  Lauren assisted with project management, budgets and report writing for facade inspections and repair campaigns.

Lauren has a BFA in Illustration from the Massachusetts College of Art and has studied anatomy drawing and painting as well as other methods. She is a SPRAT-certified Level III rope access supervisor.

Matthew Kreidler

TPAS/CAD Manager/Technician

Matthew Kreidler has joined the firm as a SPRAT Certified Level 1 Rope Access Technician, and our new TPAS and CAD Manager.  He received his Masters in Architecture from the University at Buffalo and comes to the firm from Boston Valley Terra Cotta.

Elizabeth Nguyen

Marketing and Business Development Manager

Elizabeth Nguyen serves as the Marketing and Business Development Manager at Vertical Access. Elizabeth spent the majority of her career in the A/E/C industry providing professional services to renowned architects and engineers throughout the United States. During that time, she has assisted in obtaining contracts with local, state, and national clients including the National Park Service, the NYC Department of Design and Construction, and the General Services Administration.  Elizabeth received her Bachelor of Arts in Mass Communications from Wright State University in Dayton Ohio.