Duane Howard


Mr. Howard provides the organizational component in ensuring that MUEI runs as efficient and as productive as possible. Since his arrival at MUEI he has leveraged his experience in financial analysis, budgeting and forecasting as well as his leadership and teambuilding skill work. He assists with day to day problem solving and works hand in hand with our engineers and designers to ensure that our projects come within budget.

Ivan Fairfax


Mr. Fairfax is very well known in the Philadelphia area with his extensive experience in plumbing and fire protection design. With over 40 years in the industry, Mr. Fairfax has performed on a wide range of private and public projects ranging from industrial to residential to healthcare and pharmaceutical. With his understanding of construction requirements and with his ability to lead, Mr. Fairfax has proven to be a valuable and important addition to Mark Ulrick Engineers, Inc.

Relevant Experience

Mr. ­­­­­Fairfax as our chief plumbing engineer, provides oversight of all MUEI’s plumbing design projects.  He manages our design teams for above and below grade utilities, including sanitary, storm, gas and water.  He is extremely knowledgeable of the Philadelphia Plumbing Code and adept to the differences in the national codes.  His project experiences range from prisons, schools, health care, airports, residential, etc.  He places heavy emphasis on energy and water conservation.


Studies in Chemistry

St. JosephUniversity, Philadelphia, Pa 1974


▪American Society of Sanitary Engineers

▪American Society of Plumbing Engineers


American Society of Plumbing Engineers (Plumbing Engineering)

Academic Teaching Experience

Plumbing Instructor for the Engineers Club

Antoine Joseph


Mr. Joseph excels at researching and analyzing client design proposals, specifications, manuals, and other data to evaluate the feasibility, cost, and maintenance requirements of designs or applications. Since joining Mark Ulrick Engineers, Mr. Joseph has proven to be an asset to our engineering team. His assignments include but are certainly not limited to performing fan static calculations, pump head calculations, system layout and peer review.

Mark Washington


Mr. Washington is a thoroughly rounded engineer who has over 29 years experience in the field of HVAC and building services engineering.  He specializes in the design of HVAC systems for facilities such as college campus’, community buildings, churches, historical buildings, correctional facilities, housing, museum, governmental, retail, educational facilities and more.  He has provided designs for renovation, repairs, maintenance, new construction, and addition to facilities.  He also specializes in conducting reports, evaluation and recommendation in the field of HVAC design.

Relevant Experience

Mr. Washington has managed surveys and documentation of existing facilities, development of final schemes, load calculations, cost estimation, construction administration, preliminary analysis of problems and the development of alternative solutions.  As founder of Mark Ulrick Engineers, Inc. Mr. Washington believes in using engineering talents to serve clientele, help better communities and train youth as they search for careers.


Bachelor of Science, Mechanical
Lafayette College
Easton, PA


Pennsylvania, New Jersey,  New York, Delaware, Maryland, Virginia, Illinois


American Society for Heating & Refrigeration Engineers

Community Service

Member of Covenant Fellowship Church Glen Mills, PA

Delaware County Youth Baseball and Basketball Coach