Welcome to RAINIER GPR

Serving with Integrity and Professionalism

About us

We continue to grow and build our reputation as the PNW Region’s most trusted GPR business.

Rainier GPR is committed to providing quality service to the Pacific NorthWest. We believe that having integrity and a reputation in reliable business is the key for success.

Tony RainierGPR

what we do

Our Services

GPR Scanning and Utility Locating

Our fast and efficient concrete and subsurface scanning method using Ground Penetrating Radar (GPR) will give critical information on concrete depth, post-Tension location, rebar and conduit within and underneath the slab, and any other possible hazards that are undetectable from the surface. Before core drilling, saw cutting, or digging, a concrete scan using GPR helps identify the location and depth of any anomalies with high-resolution Ground Penetrating Radar (GPR).

Structural imaging and analysis

Our highly trained scan technicians are able to determine critical deck and slab information for Superintendents, Project Managers, Engineers, and any other workforce needing vital slab analysis. Understanding Post-Tension, rebar, and conduit location, spacing, and depth are critical, and we specialize in the latest GPR technologies. Concrete cover, overlay thickness, concrete thickness, and even dowel and anchor placement, we are here to help. With Rainier GPR’s ability to scan complete concrete structures, we are not limited by the size of your project for structural analysis with Integrity and professionalism.


Ground penetrating radar (GPR) offers the means to detect embedded or hidden objects within the near subsurface.

Utility Locating

Having knowledge of exactly where underground utilities and features in the subsurface are located ensures that the project can proceed effectively, efficiently and safely. 

Applications for GPR

Ground Penetrating Radar

Applications for GPR

  • Post Tensioned Decks (PT)
  • Post Tensioned Slab On Grade (SOG)
  • Structural Slabs
  • Structural Walls
  • Structural Beams And Columns
  • Concrete Masonry Unit Walls (CMU)
  • Precast Decks And Walls
  • Waffle Decks
  • Hollow Core Decks
  • Asphalt GPR
  • Storage Tank Location
  • Utility Locating
  • Drainfield
  • Pan Decking
working with us

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