Topographic Surveying Services
Accurate Land Mapping for Planning, Design, and Development
Topographic surveying is essential to any successful development or infrastructure project. It provides accurate, site-specific elevation and feature data to plan and build with confidence.
Topographic Surveying Services
Accurate Land Mapping for Planning, Design, and Development
Topographic surveying is essential to any successful development or infrastructure project. It provides accurate, site-specific elevation and feature data to plan and build with confidence.
Topographic Surveying Expertise
Over 100 Years
Underhill has performed topographic surveys across Canada for over a century. From complex industrial sites to residential developments, we deliver trusted results with state-of-the-art tools.
Combining Innovation with Experience
Our teams use robotic total stations, GNSS, SLAM scanners, aerial and marine based surveys to meet your project’s needs. Whether you need traditional point collection or a complete 3D digital model, we’re ready to help.
Who We Work With
- Urban Planners and Developer
- Civil Engineers and Architects
- Construction Teams
- Residential & Commercial Property Owners
- Governments and Utility Agencies
Topographic Surveying Services
Full-Service Topographic Surveys for Every Environment
Whether you’re surveying land, water, or urban corridors, we offer the right tools and methods to get accurate results.
Our topographic surveying services are designed to meet the needs of developers, engineers, and planners working in diverse settings—from city blocks to coastlines.
Service Examples
Examples of our topographic survey services include:
Ground-Based Technologies
- Total Station Surveys – A total station is used to capture precise elevation and feature data. Robotic total stations are particularly effective for detailed point collection, making them suitable for complex terrain or areas requiring high accuracy. They integrate seamlessly with control networks, ensuring dependable survey results.
- GNSS Surveys – GNSS surveys use satellite positioning to collect accurate spatial and elevation data. GNSS integrates well with control networks, providing reliable georeferenced survey points.
- Digital Leveling – Digital levels deliver superior vertical accuracy for elevation profiling. They are best suited for applications requiring precise height measurements, such as establishing benchmarks or detailed terrain sections.
Advanced 3D Surveying
- Terrestrial Laser Scanning (TLS) – TLS is a ground-based method using lidar to scan the site from a fixed location. It delivers highly accurate 3D point clouds, perfect for complex structures and sites that require dense data for modeling and design.
- SLAM Mobile Mapping – Using Simultaneous Localization and Mapping (SLAM) technology, this wearable scanner allows surveyors to walk the site and capture colorized 3D data in real time.
Aerial and Marine-Based Surveys
- UAV / Drone Topographic Surveys – Drones equipped with high-resolution cameras or lidar sensors are used to map large areas quickly. These surveys are well-suited for remote, expansive, or otherwise inaccessible terrain.
- Marine and Hydrographic Surveys – These surveys chart shorelines, harbors, and underwater features. They support coastal development, flood modeling, and marine infrastructure planning.
