GPR concrete scanning & utility locating. 27 service areas across two states. RainierGPR delivers expert subsurface scanning from the Pacific Northwest to Central Florida: the same 5.0-star precision, the same next-day response, and the same documented locate report, whether your project is in Seattle or Orlando.
Where do you need a marked floor?
Washington →
Our founding market. Seismic zone scanning, dense urban utility locating, and the PNW’s most trusted GPR team: from Seattle’s waterfront to Olympia’s capitol campus.
Florida →
PNW precision meets Florida’s unique challenges. Post-tension cable detection, sinkhole screening, and private utility locating from Orlando to the Space Coast.
Three services. Both states.
Concrete Scanning & Imaging →
Full GPR scanning of slabs, walls, columns, and elevated decks: rebar, conduit, PT cables, and voids mapped with on-site markings and a same-day digital report.
Underground Utility Locating →
GPR and electromagnetic locating of buried water, sewer, gas, electrical, and telecom lines, including the private lines 811 never marks, with depth data.
Concrete Core Drilling →
Scan-then-core penetrations: every drill zone cleared for rebar, PT cables, and embedded conduit before the bit ever touches concrete.
Different conditions, same precision.
Every region has unique subsurface challenges. We’ve invested in understanding both, so you get a team that knows your local conditions, not generic scanning from a national chain.
The Pacific Northwest’s seismic construction codes, wet clay soils, and dense urban development create scanning challenges that require local knowledge and experience.
✓ IBC Seismic Design Category D reinforcement
✓ Glacial till & clay soil GPR calibration
✓ Sound Transit & infrastructure coordination
✓ Historic building renovation scanning
✓ Mixed wood/steel/concrete structures
Central Florida’s post-tension slabs, karst sinkhole geology, hurricane-rated construction, and high water tables demand specialized GPR expertise that inland-focused companies miss.
✓ Post-tension cable detection (FL standard)
✓ Sinkhole & karst void screening
✓ High water table signal calibration
✓ Hurricane-code dense reinforcement
✓ Sunshine 811 gap, 60%+ private utilities
The Rainier Pre-Scan Standard.
Book today
Call or send the form: Tony answers, scopes the job, and schedules your market typically next-day.
Scan on site
GPR and electromagnetic locating across your cut, core, or dig zones: no noise, no dust, no downtime.
Marks you build from
Findings chalked on the surface in APWA color code and walked through with your crew before we leave.
Same-day report
A digital locate report documenting what’s where: your record for the GC, the inspector, and the next trade.
Every city page shows real marks from real jobs.
No stock photos of other people’s work: the floors on these pages are floors we scanned: live-retail renovations, PT decks, parking garages, and home slabs. Browse the documented projects →
“Landry was able to help me and my company out extremely fast! Great service, great people, and definitely will be scheduling more work with Landry and RainierGPR”
“Right away the owner (Tony) answered the phone, worked with me on a quote for my small project as a homeowner, and was also able to get me scheduled right away.”
“I was in need of some last minute scanning of a PT Deck on an ongoing project. Rainier GPR was able to accommodate my schedule and came out same day to preform the scanning.”
Ready to protect your project?
Free quotes, next-day scheduling, and night/weekend and emergency service available in both states. No job is too small. Washington (360) 584-0401 · Florida (407) 493-3525.
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