Serving Southeastern Pennsylvania since 1935

Our Team

Meet the highly qualified and certified team of civil engineering and land surveying experts at Regester Associates.

Chester R. Diem, III

P.L.S., President

A second generation surveyor who has been with Regester Associates, Inc. since 1981. Chester is a registered Professional Land Surveyor in the State of Pennsylvania and oversees all employees and projects to ensure the client receives a quality product.

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Jeffrey A. Diem

Vice President

As a second-generation surveyor, Jeffrey started as a field surveyor in 1988 and climbed the ladder to become the Vice President of Regester Associates, Inc. Jeff is also the office supervisor and lead estimator.

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James E. Fritsch


Since 2002, Jim has been responsible for overseeing the entire Engineering Department at Regester Associates. Jim is a Registered Professional Engineer in the state of Pennsylvania and currently holds the township engineer position at Newlin Township.

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Jesse Condon

P.E., Civil Design Engineer

As a Registered Professional Engineer, Jesse is responsible for the design of a wide variety of residential and commercial development projects.

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Matthew R. Drumheller

P.L.S. Crew Chief

With a Bachelor’s of Science degree in surveying from the Pennsylvania State University and being professionally licensed as a land surveyor in Pennsylvania and Delaware, Matt is responsible for the scheduling and day to day operations of our field surveying department.

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John M. Colvin


At Regester, John deals with the preparation of boundary, title, control, topographic and as-built surveys as well as evidence collection, review and analysis, ordinance review, and subdivision design.

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Brian Masterson

Project Manager

Brian has been with Regester Associates since 2004, and he manages the preparation of subdivision, land development and lot add-on plans as well as coordinates all required field work including soils testing for sewage facilities and storm water management for our Quarryville office.

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