AJC Professional Services provides engineering expertise in HVAC, plumbing, fire protection and electrical systems.  We offer design services, feasibility studies, building information modeling, electrical safety studies and more.

Our portfolio includes the successful design of schools, commercial buildings, office complexes, and more.

It makes all the difference in your project

our services

AJC Professional Services, LLC is an Architectural Engineering consulting practice focused on electrical, plumbing, HVAC and fire protection systems for commercial and industrial buildings.  We concentrate on client relationships, quality designs and strong construction support.  We believe that relationships extend beyond singular projects and over the years our clients have become our friends.

Eric Horvat - President

Eric brings a construction perspective to design and the ability to communicate between design professionals and contractors alike.

Meet Our leadership Team



Our engineers have solid backgrounds in both design and construction. You get the benefit of experience that's been acquired year after year, job after job.

past Projects


There's nothing more satisfying than a comfortable indoor environment.

 Let AJC Professional Services help you plan for the success of your project!  We have a proven track record of success in understanding your goals, communicating the impacts of building codes and designing systems that meet your overall expectations.  Our follow through into construction is un-paralleled and our ability to work through the challenges of construction lead to completed projects on time and on budget.


layout and select unobtrusive but effective systems

inspiration through construction

  • HVAC, Plumbing, Electrical and Fire Protection Design Services
  • Feasibility Studies
  • Arc Flash Hazard Analysis and Electrical Coordination Studies

Luke Flowers - Harrisburg Office MAnager

Luke brings his electrical background and BIM knowledge to each project.  Luke is a licensed professional engineer and a certified BIM and Revit expert.

  • Building Information Modeling
  • Cost Estimating
  • Energy Analysis
  • Construction Administration


Finish on time and on budget

AJC Professional Services


research appropriate systems to meet goals/budgets