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GPR Concrete Scanning & Imaging Specialists Since 1999

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.

Rated on Google
5.0 ★★★★★

30 reviews, every one five stars

Family-owned since 1999

WA Lic. SILERCC804RT · USDOT 3663541

Licensed & insured · 24/7 availability

Concrete Scanning

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.

Ground-penetrating radar scan of a commercial concrete slab before cutting

Why Contractors & Homeowners Choose Siler’s

27
Years in Business

Family-owned and operated since 1999.

5.0★
On Google

Every one of our 30 reviews is five stars.

Licensed
& Insured

WA SILERCC804RT · USDOT 3663541

24/7
Availability

Nights, weekends and tight pour schedules.

When You Need It

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:

01

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.

02

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.

03

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.

04

Embedded Utility Location

Identifying utilities hidden in and under concrete so saw cutting, core drilling and trenching operations proceed safely around live services.

05

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.

06

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.

Equipment & Expertise

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.

30
Google reviews · every one five stars

“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 It Works

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.

01

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.

02

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.

03

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.

04

Cut with Confidence

With the slab mapped, our sawing and coring crews (or yours) proceed exactly where it’s safe.

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 FAQs

Concrete Scanning & Imaging Questions, Answered

Ground Penetrating Radar detects and visualizes rebar, electrical conduits, post-tension cables, embedded utilities and voids within concrete structures. It also reads rebar pattern and concrete thickness, information engineers use to assess structures and plan work to the facility owner’s spec. Results are marked on the surface and delivered with locations and depths in a written report.

Because striking a concealed post-tension cable, live conduit or utility line is dangerous and expensive. Scanning identifies exactly where embedded elements sit so saw cutting, core drilling and trenching can be planned around them, protecting workers, equipment and the structural integrity of the building. It’s how costly and dangerous mistakes get avoided before they happen, and how project managers get the clear picture of embedded features they need to pre-plan, design and navigate complex construction challenges confidently.

No. GPR is fully non-destructive and non-invasive. Radar pulses pass through the concrete and reflect off embedded objects; nothing is drilled, cut or disturbed to produce the image. Your structure’s integrity is preserved while you get an accurate picture of what’s inside it, which also makes scanning completely safe to perform in occupied and operating buildings.

Yes. Every scan includes comprehensive reporting: the locations and depths of detected elements such as rebar, post-tension cables and utilities, plus a concise description of the methods used and any findings that may impact your project, so decisions get made on documented information, not memory of where the marks were. That transparency carries through the whole engagement, from first scan to final cut.

Yes. And that’s the advantage of calling Siler’s. The same company that scans your slab handles the flat sawing, wall sawing and core drilling afterward, so nothing is lost between the scan report and the blade. One call, one crew, one accountable contractor.

That’s exactly what it’s for. By identifying the precise location of conduits, rebar, post-tension cables and other elements within the concrete, scanning lets crews avoid costly and dangerous mistakes during construction, and it keeps the utilities themselves intact. The careful, non-destructive approach is what allows saw cutting, core drilling and trenching operations to proceed safely around live services.

GPR imaging reveals the rebar pattern, the thickness of the concrete and other structural components without opening the slab up. Engineers use that data to evaluate existing structures, verify as-built conditions and plan modifications safely to the spec of the facility owner, with our comprehensive reports documenting every detail considered in the planning process.

Dedication to accurate, detailed imaging, and the experience to back it up. Our team’s decades of concrete saw cutting and core drilling work mean we know exactly what a cutting crew needs from a scan, our technicians are trained to interpret results correctly on complex projects, and we constantly improve our methods and equipment. We take pride in the quality of the work, and it shows in the results our clients plan around.

It depends on the size of the scan area, site access and how detailed the reporting needs to be. Estimates are free: call (206) 901-9383 with your project details and we’ll quote it quickly.

Service Area

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.

47.6062° N · 122.3321° W, Seattle, WA

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.

(206) 901-9383
24/7 Availability · Family-Owned Since 1999 · Licensed & Insured