
Concrete Scanning, Utility Locating & Core Drilling in Toronto – First Line Inc
with over 35 years experience
We Specialize in
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CONCRETE SCANNING
Safe, Accurate, Non-Destructive GPR Surveys
We provide non-destructive concrete scanning using ground penetrating radar (GPR) to detect rebar, conduits, post-tension cables, and voids in concrete slabs, walls, and structures. Our team uses the newest and highest quality equipment to ensure clear, accurate results without damaging valuable embedded infrastucture.
Whether you're cutting, coring, anchoring or testing, we help you avoid costly mistakes and unexpected obstructions. Fast response time and expert technicians make us the trusted choice across Toronto and Southern Ontario.

UTILITY LOCATING
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Accurate Subsurface Surveying for Safe Excavation
We specialize in investigative utility locating using a combination of dual-frequency ground penetrating radar (GPR) and electromagnetic (EM) utility locating equipment to detect buried infrastructure with a high level of precision.
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Our process includes producing clear, scale field drawings, which helps clients plan safely and confidently before excavation. Whether you're working in a dense urban environment or open space, we deliver quality, accurate results that reduce risk and keep projects moving forward.


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CORE DRILLING
Core Drilling Solutions for Concrete Slabs, Walls, and Foundations
Our core drilling services are designed for clean, accurate penetrations in concrete, asphalt, and masonry. Whether you're creating access for utilities, anchors, or structural testing, we use high-quality equipment to ensure smooth, controlled cuts with minimal disruption.
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From slab to wall, we handle drilling at all angles and depths, delivering reliable results for contractors, engineers, and site managers across Ontario.
THE advantage is clear
Our quality speaks volumes
When it comes to scanning and locating, precision is everything. We've taken on jobs after other companies have missed the mark—and the difference is clear.
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See side-by-side comparisons showing exactly how we stand out.
PAPERLESS DIGITAL REPORTING
Every project, big or small, receives a custom tailored field report. Each report contains project specific details and images, all in a single PDF file.
We care about the enviroment, and have decided to eliminate all paper formatted documents going forward.
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