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WTH Land Surveyors P.C. is a family‑owned land surveying and mapping firm serving the Long Island area since 1989. They provide a broad range of residential and commercial surveying services, including boundary and ALTA surveys, title work, easement and encroachment surveys, site planning, topographic mapping, construction staking, and elevation-related services such as FEMA elevation certificates and flood zone determinations. The firm emphasizes professional, personal service with competitive pricing and has strong customer feedback.
AI named William T. Holgan Land Surveyors in February 2026.