Simultaneous localization and mapping (SLAM) technology has transformed how the construction industry captures, interprets and uses site data. Originally developed for autonomous robotics, SLAM enables devices to build maps of unknown environments while tracking their movement through them in real time. In construction, SLAM is often embedded into mobile LiDAR scanners and handheld units like the NavVis VLX or the smaller, more mobile MLX or the Trimble X7. These digital provide fast, accurate scanning, making them perfect for indoor or complex environments.

Electrical contractors are integrating SLAM-based tools alongside 360-degree reality capture platforms like OpenSpace and drone flights to streamline how as-built conditions are captured. 360 cameras mounted on hard hats for consistent—and accurate—visual documentation that is timestamped can create a precise timeline throughout the project. Utilizing LiDAR drones offers aerial visualization for capturing rooftop conditions, in slab rough-in or site terrain, and converting to 3D point clouds that can be used to aid the VDC/BIM teams modeling site underground.

For electrical contractors, this technology is a game-changer for field accuracy and team collaboration. Your typical as-built workflow would require tape measures, paper markups and photos manually organized in folders. Now, with SLAM and 360 reality capture, field conditions can be documented weekly (or even daily), stored in the cloud and instantly reviewed from anywhere. Most of these platforms do not limit the number of users that can view these images, which makes sharing as easy as inviting someone onto the project. These tools are integrated into platforms like Autodesk Construction Cloud, allowing electrical teams to annotate, reference and flag clashes, changes or progress issues visually.

Importantly, this data isn’t just used to protect scope or support billing. It opens doors for proactive collaboration with general contractors and other trades. For example:

1. Coordination efficiency: Instead of waiting for RFIs or field walks, trades can log in and visually verify real-time progress. This reduces schedule delays and miscommunications.
2. Scope clarification: During design-assist, contractors can use reality capture to validate model accuracy and prevent rework.
3. Prefab planning: Electrical contractors can confirm field conditions before sending materials to prefab, reducing waste and idle labor.
4. Teamwork: This sets the tone for the project, where all parties working together as a team can make the entire project a success

Justification through ROI:

• Labor savings: Weekly OpenSpace walkthroughs reduced field verification time by 40% for one San Antonio contractor, saving 100-plus hours per month.
• Reduced rework: A project using SLAM scans caught structural clashes early, preventing a $30,000 rework.
• Schedule compression: Drone scans allowed early MEP coordination on a tilt-wall site, accelerating underground installation by 10 days.

Three ways to implement:

1. Start with weekly 360 walks: Use OpenSpace or a similar program to document job progress, link photos to drawings, overlay BIM models and involve field teams in tagging issues.
2. Pilot a mobile SLAM unit: Rent or lease a scanner like NavVis VLX to map existing conditions quickly, validate embedded conduit locations or plan remodels.
3. Integrate drone flights into preconstruction: Use aerial scans to capture site topography, plan trench routes or document slab prep before pour.

By shifting the use of reality capture from a defensive tool to a collaborative workflow, electrical contractors can become leaders in coordination, transparency and efficiency. Keep an eye out for NECA’s Innovation Overload podcast where Sean Lazarian and I talk about SLAM technology in detail and explain the pros and cons in depth.