Concrete Scanning & Imaging in Seattle, Tacoma & Western Washington
Ground Penetrating Radar (GPR) maps rebar, conduit, post-tension cables and voids inside concrete, non-destructively, before any cutting, coring or trenching begins. Commercial and residential, across Puget Sound.
30 reviews, every one five stars
Family-owned since 1999
WA Lic. SILERCC804RT · USDOT 3663541
Licensed & insured · 24/7 availability
What Is Concrete Scanning & Imaging?
Concrete scanning and imaging with Ground Penetrating Radar (GPR) uses high-frequency radar waves to non-invasively detect and visualize what’s inside concrete: rebar, electrical conduits, post-tension cables, embedded utilities and voids. The scanner maps the subsurface of a slab or wall before any concrete cutting or core drilling is undertaken, so every cut is planned around what’s actually in there.
The reason is safety. Striking a concealed post-tension cable or live conduit is dangerous and expensive. Scanning protects workers, equipment and the structural integrity of the building, and it lets project managers pre-plan and design with a clear picture of embedded features instead of guesswork.
Every scan comes with comprehensive reporting: the locations and depths of detected elements, a concise description of the methods used, and any findings that may impact your project, transparent information for informed decision-making.
Choosing the right company for the scan matters as much as the scan itself. Siler’s has been serving residential and commercial customers in Seattle, Tacoma, Bellevue, Redmond and beyond since 1999, and our team stays current with the latest scanning technology and methods, so the results you plan around are accurate and reliable, and even the most complex projects get handled with confidence.
We also know time and budget are critical on any construction or renovation project. Fast response times, efficient equipment and decades of honed expertise mean the scan happens quickly, the report lands promptly, and your schedule keeps moving, efficiency that never compromises the quality of the results.
Scanning supports every one of our concrete cutting services, and Siler’s technicians have been putting steel-safe cuts through Washington concrete since 1999, helping clients complete projects on time and on budget.

Why Contractors & Homeowners Choose Siler’s
Family-owned and operated since 1999.
Every one of our 30 reviews is five stars.
WA SILERCC804RT · USDOT 3663541
Nights, weekends and tight pour schedules.
What Concrete Scanning & GPR Imaging Are Used For
Any time a saw, core bit or excavator is about to meet concrete with unknowns inside it, a scan comes first. These are the scanning and imaging jobs we perform most often across the Seattle-Tacoma area, on our own cutting projects and ahead of other contractors’ crews:
Pre-Cut & Pre-Core Scanning
Scanning slabs and walls before sawing, coring or trenching operations, so blades and bits stay clear of everything embedded, the standard first step on our own cutting jobs.
Post-Tension Cable Location
Locating tensioned cables in PT slabs before drilling or cutting, the single highest-stakes scan in concrete work, where precision protects both crew and structure.
Rebar & Conduit Mapping
Mapping rebar patterns and electrical conduit runs with locations and depths reported before work begins, documented, marked and ready to build around.
Embedded Utility Location
Identifying utilities hidden in and under concrete so saw cutting, core drilling and trenching operations proceed safely around live services.
Void Detection
Detecting voids beneath and within slabs that could compromise cuts, equipment or the structure itself, found before they become a problem, not after.
Structural Assessment Support
Imaging rebar pattern and concrete thickness so engineers can evaluate existing structures, verify conditions and plan to the facility owner’s spec.
Accurate, Non-Destructive, Reported in Detail
We run state-of-the-art scanning equipment: Ground Penetrating Radar, a non-destructive method that uses radar pulses to locate and map embedded objects, plus dedicated concrete scanners that produce detailed imaging of what’s hidden inside the concrete. No coupons cut, no holes drilled. The structure is never disturbed.
Equipment is only half of it. Our technicians bring in-depth knowledge of scanning techniques, expertise in interpreting results, familiarity with construction site safety protocols and strong problem-solving skills, because a scan is only as good as the person reading it.
And because the same company does the cutting, the scan flows straight into the work: the crew that maps your slab is the crew that saws or cores it, to the same drawings, with no hand-off risk in between.
The emphasis on safety in construction cannot be overstated: every project requires a thorough understanding of what lies within and beneath the concrete before work begins. Scanning is how structural integrity is maintained, and how workers and equipment are protected from the risks of striking concealed objects.
Scanning is step one. The cut is step two. See our flat sawing, wall sawing and core drilling services for what happens after the all-clear, or hand the report to your own crew and cut with confidence.
Scanning at a Glance
Non-destructive GPR, structure undisturbed
Locates rebar, conduit & post-tension cables
Detects voids and embedded utilities
Locations & depths in a written report
Licensed & insured, WA Lic. SILERCC804RT
Have a Job Like These?
Send us the plans or talk to the crew directly. Free estimates, 24/7 availability, one crew from first cut to haul-off.
5.0 on Google From 30 Reviews
Real reviews from Western Washington homeowners and general contractors.
“Let me just start by saying “committed to excellence” doesn’t even do these young men justice! Larry JR’s customer service and communication skills are top notch. He’s always punctual.”
Adriana B.
Five-Star Google Review
“They are the best company around.”
Eric C.
Five-Star Google Review
“Larry and his crew are stand up people.”
Frank C.
Five-Star Google Review
How Concrete Scanning Works with Siler’s
A cut-only contractor leaves the break-out and the haul-off to somebody else. Siler’s cuts to your marked lines, breaks out the sections and hauls them off with one crew, so nothing falls between subs.
Free Estimate
Call (206) 901-9383 or send us the scan area, slab details and what you’re planning to cut or core. We quote scanning fast.
Scan the Area
A trained technician runs GPR across the surface, reading rebar, conduit, cables and voids in real time, non-invasively, with zero damage to the structure or disruption to the site.
Mark & Report
Findings are marked directly on the concrete and delivered in a comprehensive report with the locations and depths of everything detected, plus the methods used.
Sound Familiar?
✕ An opening that’s out of square, so the frame or the duct doesn’t fit.
✕ A second sub to schedule for haul-off, and a third for the pour-back.
We built our process to take every one of these off your plate. One call. One crew. One line on your schedule.
Concrete Scanning & Imaging Questions, Answered
Concrete Scanning Across Seattle, Tacoma & Western Washington
Our scanning technicians dispatch across the Puget Sound region every day, usually one step ahead of a saw or core rig, from downtown Seattle post-tension decks to Tacoma tenant improvements and residential slabs in between.
Know What’s in the Concrete Before You Cut
Get a free estimate today. Tell us about the job or talk to the crew directly.

