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

Final plansIn northern Lancaster County, Diehm & Sons is practically synonymous with land surveying. As licensed professional land surveyors, Diehm & Sons maintains the expertise and equipment to handle all of your surveying requirements, from large tracts of land to small lots. And, our 100+ years of historical data, cataloged and meticulously maintained, has provided a wealth of background information to countless projects.

Over the years, we've seen how growth has influenced major changes in regulations regarding land planning and design.  Our understanding of ever-changing ordinances and regulations allows us to represent you in a way that gives you greater peace-of-mind as your plans go through the process.  We know many of the officials in the municipalities we serve and regularly attend municipal planning and zoning meetings on your behalf.  We thoroughly research the rules and regulations of each municipality, keeping abreast of any changes as they occur and communicating with officials whenever a question arises.  

Additionally, our emphasis in providing clients with in-house civil engineering capabilities evolved from the increasing demands of these municipal regulations.  Today, we offer a complete in-house engineering package that includes engineer professionals who are highly experienced in all aspects of civil engineering, giving our clients advanced capabilities in many areas, such as stormwater management, erosion control plans, floodplain studies and highway occupancy permits.