More about us: serving patchogue & surrounding communities . Our products and services include building permit surveys, buildings permit surveys, maintain records of christopher p dunn, maintain records of christopher p. dunn, mortgage, mortgage surveys, permitting, serving babylon & surrounding communities, serving islip & surrounding communities, serving lake ronkonkoma & surrounding communities, serving sayville & surrounding communities, serving shirley & surrounding communities, subdivisions, title & c.o. surveys, title & co surveys, title surveys and topographic surveys. We specialize in buildings, subdivisions and surveyed land. Our certifications include licensed land surveyor.