William Holgan is a New York State Licensed Land Surveyor who services Nassau and Suffolk County New York for the last twenty years. William Holgan conducts surveys for title, mortgage, sub-divisions, building permits, COs, variances, Board Of Health, DEC, flood elevation certificates, land site plans, septic design, radius, area maps, CAD. Boundary line surveys for tree, fence, encroachments. Prompt and reliable service, call now & visit us online today!