Surveying & Mapping

Surveying since 1885

We focus our expertise on traditional surveying methods, as well as electronic measuring, photogrammetric mapping and other state-of-the-art methods.

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Civil Engineering

Extensive expertise

We service all aspects of civil engineering including stormwater management, erosion control plans, floodplain studies and highway occupancy permits.

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Land Planning

Turning your vision into reality

Whether it's subdivision plans, estate planning, sewage plans, or site feasibility analysis, we offer the guidance and experience that provides peace of mind.

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Diehm & Sons

View our Portfolio to see a sampling of our projects.


Diehm & Sons services various clientele, all with different needs. We've had the opportunity to recently complete or are currently working on the following projects:
New IMAX Theater at Penn Cinema
Manheim Township, Lancaster County - The client, Penn Ketchum, wanted to construct a new 425-seat IMAX theater to serve the Lancaster area. He approached Diehm with a challenge: get the project approved quickly so he could construct the theater in time for the release of Harry Potter and the Deathly Hallows. This required Diehm to perform a number of tasks in less than five months. Those tasks included a topographic survey of the site, design and engineer the project, obtain zoning and sewage permitting approvals, and process land development plans through the Township. We met the challenge and finished the project on time, allowing the theater’s construction and grand opening to proceed on schedule.
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