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GPR Services · Metro Vancouver

Underground Infrastructure Mapping in Richmond, BC

Whole-site subsurface as-builts for campuses, facilities, and municipalities — every utility corridor mapped, depth-profiled, and delivered in CAD. Serving Richmond and the Metro Vancouver region with certified technicians, non-invasive methods, and insurance-ready documentation — since 1999.

Multi-acre
Site-scale capability
GPR + EM + records
Fused methodology
DWG/DXF/GIS
Deliverable formats

Free phone consult · No pressure · Mon–Sat 8am–6pm PT

Richmond ground conditions & what they mean for GPR

Local geology: Richmond sits on Fraser delta silts and peat with a water table often within a metre of grade. Richmond is BC's most depth-limited GPR environment — saturated silts attenuate signal fast. Shallow targets still image well, and we compensate with EM, acoustic, and tracer methods for deeper work.

Local building stock: Slab-on-grade construction nearly everywhere, dyke-protected industrial parks, and extensive irrigation and drainage infrastructure.

Common underground infrastructure mapping work in Richmond

  • Slab leak detection in slab-on-grade homes
  • Drainage and irrigation line mapping
  • Shallow utility locates before fence and deck builds
  • Slab-on-grade concrete scanning where X-ray is physically impossible
  • Campus and facility as-builts
  • Municipal asset records
  • Master-planning due diligence

How the Richmond site visit works

  1. 1

    Records fusion

    Existing drawings, One Call data, and institutional memory are compiled first — the survey fills gaps and corrects errors.

  2. 2

    Corridor surveys

    GPR and EM sweep the site systematically; finds are reconciled against records in real time.

  3. 3

    Depth profiling

    Key crossings and corridors get depth sections — the data design engineers actually need.

  4. 4

    CAD/GIS deliverable

    Layered DWG/DXF or GIS-ready output, attributed by utility type, confidence level, and depth.

Richmond questions, answered

What does 'confidence level' mean in your deliverable?

Industry-standard quality levels: a directly observed or strongly imaged utility maps at higher confidence than one inferred from records. Design engineers use the levels to decide where potholing is still needed — honest mapping says what it knows and what it suspects.

Can you map a whole school or hospital campus?

Yes — campus-scale mapping over multiple mobilisations is a core service. Work proceeds zone by zone around operations, and the deliverable assembles into a single layered site plan.

How does this reduce capital project costs?

Design teams stop carrying utility-conflict contingencies for unknowns, and construction stops eating strike delays. On typical BC institutional projects the mapping cost returns several times over in avoided change orders.

Do municipalities use this for water-loss programs?

Yes — accurate main and service locations are the prerequisite for efficient acoustic leak surveys. Mapping plus leak detection in one program is how smaller BC municipalities tackle non-revenue water.

How deep can GPR scan in Richmond?

Richmond sits on Fraser delta silts and peat with a water table often within a metre of grade. Richmond is BC's most depth-limited GPR environment — saturated silts attenuate signal fast. Shallow targets still image well, and we compensate with EM, acoustic, and tracer methods for deeper work. We select antenna frequency to match — and where local ground limits radar depth, we pair GPR with electromagnetic locating, acoustic methods, or tracer gas so the survey objective is met regardless of soil conditions.

Do you actually work in Richmond, or dispatch from elsewhere?

Richmond is part of our standing Metro Vancouver service area — the same certified technicians and equipment that cover the rest of the region. Scheduling is typically within 24–72 hours, with same-day response often possible during business hours (Mon–Sat, 8am–6pm Pacific).

What does underground infrastructure mapping cost in Richmond?

Pricing matches our province-wide structure — no regional premium for Richmond. Most residential-scale work falls in the $350–$1,200 range depending on scope; commercial and multi-site projects are quoted after a free phone consult. Call 604-239-9934 and we will give you a tight estimate in five minutes.

Need underground infrastructure mapping in Richmond?

Free phone consult with a certified GPR technician — we will tell you whether a survey is warranted and quote it in five minutes. No pressure.

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