WTH Land Surveyors P.C.

William T. Holgan Land Surveyors P.C. is a Long Island area based land surveying company that provides exceptional, high quality surveying services to its loyal clientele base and new customers alike. We provide a wide range of surveying and mapping services for both residential and commercial projects. Service, excellence & integrity are woven into every survey that William T. Holgan Land Surveyors P.C produces, as we strive to be professional, personable and efficient.

Family Owned

William T. Holgan Land Surveyors P.C. has been family owned and operated since Mr. Holgan became New York State licensed in 1989. We provide a high level of personal service and honest feedback regarding your project.

New York State Licensed

Since 1989, William T. Holgan Land Surveyors P.C. has built a highly regarded reputation within the industry, local government and surrounding community.

Competitive Pricing

While our pricing is fair, competitive and transparent, our level of service and industry knowledge is unparalleled.


All surveys are completed using state of the art GPS equipment for the accuracy that is required for your project.