Ground-level track inspections miss what's happening beneath the surface. Our certified drone operators use radiometric thermal imaging to detect internal tie rot, moisture intrusion, ballast drainage failures, and rail joint distress across entire corridors in a single pass. You get GPS-referenced reports with prioritized repair recommendations, so maintenance crews know exactly where to focus before a defect becomes a failure.

Radiometric thermal cameras capture surface temperature data across the full inspection corridor. Defective ties, fouled ballast, and stressed rail joints all produce heat signatures distinct from healthy infrastructure. At dusk, the contrast between failing and sound ties is sharp enough to identify individual problem ties within a cluster, not just flag a general section for re-inspection.
Our drones systematically scan:

Our thermal drone inspection services are available to Class 1 railways, shortline operators, and industrial facility owners managing private spurs and yard infrastructure across Alberta, BC, and Saskatchewan. If you run track at a refinery, grain terminal, or intermodal facility, thermal imaging finds the defects your ground-level inspections are missing before they become slow orders or unplanned shutdowns.
Before each inspection, our operators complete a flight planning review covering airspace verification, site-specific hazard analysis, and a controlled flight plan for the corridor. Inspections run without taking track out of service.
Failing ties retain and release heat differently than sound ties. Our thermal analysis identifies:
These signatures show up clearly at dusk, when thermal contrast between defective and healthy ties is at its peak. A single pass flags the exact ties requiring replacement rather than a section requiring full re-inspection on foot.
Thermal imaging identifies conditions that lead to geometry failure before they become visible at ground level:
After each inspection you receive:
Reports are structured so maintenance planners can act on them directly, without needing to interpret raw thermal data.
Thermal inspections identify high-risk tie clusters and ballast failures before they require emergency intervention. Catching a defective tie cluster early means scheduled replacement, not a slow order or an unplanned shutdown. Catching a drainage failure before it heaves the subgrade means surfacing work, not full renewal.
All inspections are conducted without impacting rail line operations. No track occupancy is required. For corridors that run 24 hours, this removes the scheduling constraint that makes conventional foot inspection difficult to deploy frequently.
Our drone operators hold Transport Canada RPAS certification and carry direct experience in railway operations. That combination matters on active rail corridors, where airspace and site safety requirements are more stringent than a standard commercial inspection job.
QRS provides thermal drone railway inspections across Alberta, BC, and Saskatchewan. We work alongside our own track maintenance crews, which means inspection findings can flow directly into repair scheduling without a handoff to a separate contractor.
