Best Home Inspection Companies

Stephen M. Yingst, P.E., CBIE

President and Owner

As the President and Owner of Yingst Engineers & Associates, Inc., Steve’s special expertise is in the evaluation and analysis of commercial and residential properties. As a Professional Engineer, he has personally inspected thousands of commercial and residential buildings. His experience ranges from a 750,000-square foot shopping mall, to a 100-unit apartment building, to primary residences and houses at every stage of construction. He provides in-depth consultations with building owners on specific problems, such as basement water infiltration, EIFS (Exterior Insulated Finish System) water infiltration, mold and mildew issues, structural repairs, roof certifications, and design/build assistance.  He is distinguished as an expert in the field of investigative engineering and frequently testifies in court as an expert witness.

Steve is a licensed Professional Engineer in the Commonwealth of Pennsylvania and the State of Maryland. He holds a Bachelor of Science degree from Penn State University (Go Lions!). Steve is a member of the National Academy of Building Inspection Engineers (NABIE), the Pennsylvania Society of Professional Engineers (PSPE), the National Society of Professional Engineers (NSPE), the Pennsylvania Septage Management Association (PSMA), and the American Society of Home Inspectors (ASHI). Steve’s technical articles have appeared in numerous publications. He has also received the Certified Building Inspection Engineer (CBIE) designation through a program established by NABIE.

Certified Building Inspectors

Kathy E. Yingst

Vice President

As Vice President and Chief Operating Officer of Yingst Engineers & Associates, Inc., Kathy is responsible for day-to-day management of the company. In this capacity, she oversees the scheduling and secretarial functions, coordinates report review and delivery, and performs the firm’s accounting and bookkeeping functions.

Kathy also coordinates the firm’s marketing efforts and public relations through meetings with potential customers, marketing surveys and mailing of quarterly newsletters.

Kathy received her Bachelor of Science degree in Business Management from Lebanon Valley College, Annville, Pennsylvania.


Andrew D. Dionne, R.S.

Business Manager and Project Manager

Andrew has established himself as an expert in the engineering industry, as he brings over 20 years of building inspection experience. Andrew specializes in inspections for both new construction and existing buildings and has performed thousands of commercial and residential building evaluations.

Andrew is an active member of professional organizations including the Community Associations Institute (CAI) and serves on the CAI Central Pennsylvania Regional Council. Andrew also holds the CAI Reserve Specialist designation. As a recognized industry expert, Andrew regularly performs Reserve Fund Studies, Transition Studies and Physical Needs Assessments for community associations and senior living facilities throughout Pennsylvania and nationwide.

Since joining Yingst Engineers & Associates, Inc. in 1999, Andrew has become an integral part of the leadership team. As the Business Manager, Andrew oversees and supervises the company’s activities and employees with the objective of ensuring that the employees are aligned with the firm’s goals.

Andrew also serves as the Quality Assurance officer for radon testing activities at the firm and is a Pennsylvania Department of Environmental Protection (PADEP) Certified Radon Testing Individual.  Andrew is also the firm’s Environmental Professional and has over 20 years of experience in performing Phase I Environmental Site Assessments (ESAs).

Andrew holds a Bachelor of Science degree in Environmental Science from Southern Vermont College where he received academic awards as Scholar Athlete of the Year in 1992, 1993 and 1994.


Brandon M. Shirk, RA

Senior Architect

Brandon serves as the Senior Architect for Yingst Engineers & Associates, Inc. and has been part of the firm since 2010. Brandon oversees the architectural division within the firm and supervises each project from initial schematic design through permit and construction drawings. He is responsible for project administration, schedules, quality control, building code conformance and supervision of the project design and drafting staff.

As an architect, Brandon brings over 10 years of experience to the firm in many aspects of the design process. His areas of expertise include commercial, religious, amusement and residential design. Brandon specializes in developing solutions that meet our clients’ needs and budgets in a fun and innovative way. He also brings a friendly and practical approach to all our projects, which enables him to offer efficient design solutions.

Brandon is a graduate of Drexel University with a Bachelor of Architecture degree, graduating cum laude in 2008. He is an active member of his community, serving on several non-profit boards and as the youth director at his church, and is also an enthusiastic Penn State football fan. Brandon lives in Lebanon with his wife, Sherri, and 2 children.


Lee E. Engel, P.E.

Senior Civil/Structural Engineer

Lee has been a Registered Professional Engineer in the Commonwealth of Pennsylvania for 15 years and has over 20 years of experience in the discipline of Civil Engineering.

Lee’s expertise includes stormwater management/erosion and sedimentation control design for small commercial projects to large residential subdivisions, geotechnical subsurface investigations and structural design of retaining walls and wood and steel framed structures. Lee’s skills and site development knowledge also supplement our design and inspection services team.  Lee is a graduate of Penn State University with a Bachelor of Science degree in Structural Design and Construction Engineering Technology.


Kevin J. Helt, E.I.T.

Structural Engineer

Kevin serves as a Structural Engineer for Yingst Engineers & Associates, Inc. and brings over 8 years of engineering experience to the team. Kevin began his career in Structural Engineering as a designer, draftsman, and junior engineer at John Deerkoski and Associates in New York. As an Engineer, Kevin has worked on a wide variety of projects ranging in size from jacking and shoring the Alexander Hamilton bridge to structurally supporting residential foundations. Kevin’s expertise is in structural design and analysis of wood and steel framed structures, hydraulic jacking, underpinning, temporary shoring and support of excavation. As an engineer, Kevin works directly with clients and contractors to come up with innovative and practical design solutions for projects large and small.

Prior to his work as a Structural Engineer, Kevin worked as a Chief Engineer for McAllister Towing. In this role, Kevin was responsible for maintaining and repairing all operating systems on various tugboats. His experience has developed a well-rounded understanding of the various moving parts of projects and need for attention to detail in both construction and engineering projects.

Kevin graduated from SUNY Maritime in 2006 with a Bachelor of Engineering degree in Naval Architecture and a USCG Third Assistant Engineers License.


Matthew A. Crotty

CAD Drafter/BIM Designer

Having over 25 years of drafting experience, Matt uses his expertise to assist project engineers and architects in MEP and architectural designs for both residential and commercial projects using building information modeling (BIM) and computer-aided drafting (CAD) software. In addition to Matt’s professional CAD experience, he has successfully completed courses focused on design software, including Revit. Matt’s work history also includes years of drafting and design experience in the automotive industry where he gained expertise in a variety of specialized design software.

Matt prides himself in his dedication to meet and exceed our clients’ expectations by delivering a quality work product.


Gail H. Givler

Office Manager

As the firm’s Office Manager, Gail is responsible for overseeing the administrative team and managing work flow from initial client contact to final delivery of the work product.  She works closely with our engineers and architects, assuring your experience with Yingst Engineers is satisfying and the product you receive is of the highest quality.  Gail has an Associate Degree in Business Administration in addition to over 20 years of experience in the administrative field.


Karen A. Zipprick

Receptionist/Client Service Representative

In her role as the firm’s Receptionist/Client Service Representative, Karen is the first point of contact for most of our clients.  She delivers the personal, immediate attention our clients deserve and can answer any questions you may have about the services that Yingst Engineers & Associates, Inc. can provide.  Karen’s friendly demeanor and professional attitude allow her to determine how we can best help you and in the most efficient manner possible.  She has over 25 years of experience in the client services field and handles every caller with a high level of professionalism and courtesy.