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.

Why Choose Diehm & Sons

Diehm & Sons’ 100+ years of experience reinforces our commitment to the needs of our clients. We are recognized for both our extensive, long-standing experience in Lancaster County, as well as mastering the latest technology available to meet the criteria of each land planning project we undertake. That said, we realize you desire a partner who will listen and supply the right advice that corresponds with your land consulting needs and budgetary constraints.

In addition to our knowledgeable staff of engineers and surveyors, Diehm & Sons maintains professional memberships for the following organizations: