Callon Dietz Incorporated

About Callon Dietz Incorporated

Callon Dietz Incorporated is a land surveying firm located on Sparta Line in the SoHo neighbourhood of London, Ontario. Serving domestic and international customers, the business provides a comprehensive range of surveying, mapping, and land information services. Their offerings include highway reconstruction programs, subdivision and condominium surveys, digital terrain modelling, utility surveys, and mapping. They also provide legal cadastral surveying, such as boundary plans for development, severances, and real estate transfers, as well as Surveyor's Real Property Reports and Reference Plans. Additionally, the firm offers Subsurface Utility Engineering (SUE) investigations, which include test holes using hydro-vac excavation, CCTV investigation and sewer mapping, and LiDAR scanning of sewer chambers. The company has a long history in the Ontario land survey industry, having been established in 1967 as T.O Callon Limited before changing its name when Terry Dietz became a partner. To expand its reach, the business operates from four office locations in London, North Bay, Oshawa, and Carleton Place. Callon Dietz distinguishes itself through a commitment to quality and technology, utilizing tools such as robotic total stations, high accuracy GNSS receivers, a photogrammetric drone (UAS), and a mobile mapping system with LiDAR scanners. The London head office has been ISO 9001 certified for over 20 years, making it one of the first survey firms in Canada to achieve this designation. The firm is also COR safety certified, maintaining a robust Occupational Health and Safety Management System.