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 II rope access technician

Contact Evan at evan@vertical-access.com or 607-592-9034.

Kevin Dalton

Kevin Dalton


Kevin joined the Vertical Access team in 2011 bringing ten years of experience in the construction industry and a strong background in historic masonry restoration. Prior to joining Vertical Access, he was a project manager and chief estimator for Premier Building Restoration in Erdenheim, PA. He has a bachelor’s degree in construction management from Drexel University, and is a SPRAT certified Level III supervisor. Kevin is based in Philadelphia, where he bolsters VA’s presence in the Mid-Atlantic region.

Berta de Miguel Alcala

Berta de Miguel Alcalà, Ph.D.

Architectural Conservator, Metropolitan New York Branch Manager

Berta has a BS in Technical Architecture, an MS in Preservation and Conservation of Architectural Heritage, and Ph.D. in Preservation of Architectural Heritage from the Polytechnic University of Valencia, Spain. Berta’s professional background includes six years of architectural preservation in Cuba, Belgium, and Spain. She has been the restoration site project manager on more than twenty landmarks, including the UNESCO World Heritage Site Catedral de Teruel (12c), the National Landmark Castle of Sagunto (Roman origin), and the San Martin Church of Valencia (14c). Berta is a SPRAT certified Level I technician and specializes in Guastavino vault architecture techniques.

Kristen Olson

Kristen Olson

Technician, Architectural Historian

Kristen joined Vertical Access in 2013 and brings over five years’ experience in historic preservation outreach and technical services, including nominations to the National Register of Historic Places. Kristen has a BA in Studio Art from Colby College, and an MA in Historic Preservation Planning from Cornell University.  She has worked as the project manager and field technician on scores of Vertical Access projects throughout the Northeast and Midwest. She has also presented widely on documentation and inspection techniques to professional organizations and academic programs.  She joins the team of rope access technicians conducting existing conditions documentation and other survey related services. Kristen is a SPRAT certified Level II technician.

Mike Russell

Mike Russell, EIT


Mike joined Vertical Access in 2016 bringing with him over six years of experience working in the construction industry, both commercial and residential, specifically relating to project management, sustainable building practices, and restoration in residential and maritime environments. He began restoring boats for the City of Charleston (South Carolina) Maritime Foundation while pursuing a degree in Historic Preservation and Community Planning at the College of Charleston.  Following his switch to the field of engineering, Mike joined a residential construction firm located on the Connecticut shoreline that specialized in the restoration and rehabilitation of barns and historic homes.  From there he went on to join Whiting-Turner, a national contracting firm where he worked as a project engineer on large scale commercial projects before joining Vertical Access in the summer of 2016. Mike is a SPRAT Level III certified 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 II rope access technician.

Michael Patino

Michael Patino, RA


Michael is a Registered Architect and brings over ten years experience working in architecture offices in New York, Atlanta and Madrid and currently serves as the chairman of the Architecture and Historical Review Board of Dobbs Ferry, NY. Michael earned his Master of Architecture from the City College of New York and his BA from Bard College and is a SPRAT Level I certified rope access technician.

Erin Bullard

Erin Bullard, CPSM

Director of Marketing and Business Development

Erin Bullard joined the firm in early 2017 as Director of Marketing and Business Development supporting our Vertical Access, Alta Access, and TPAS services. She brings more than 10 years of experience in the A/E/C industry. She is a Certified Professional Service Marketer through the Society for Marketing Professional Services, and Vice President of the SMPS Upstate New York Chapter. She recently joined the rope access team for some basic skills training during their annual training session, and has a whole new appreciation for what her coworkers do out in the field!