Utility Location

Tri-state Utility Locating located in Washington DC Metro area, serving Maryland, Virginia and DC, provides accurate detecting, locating and mapping of all underground utilities.

GPR, Utility Location, SUE

Our Services

Scanning | Locating | Drilling

Utility location | Locate Rebar, Post-tension and conduits | One-call Services | Locate voids for structural integrity of concrete | Measure concrete thickness

Locate Underground Utilites

Utility Location


TCS provides utility locating and mapping in Maryland, Virginia and DC. Both contract and hourly pricing is available.

Core-drilling and concrete cutting

Washington DC 811

MD and VA too!

Tri-state Utilities may use paint, flags or other kinds of markings, but we all mark according to the APWA uniform color code as shown here.

Utility Flags with color code

SUE reports

with GPS Mapping

Detailed SUE reports with post processed GPR data and images are provided within 72 hours after data acquisition at the job site.

SUE reports, Utility Designating, GPR images


Top Underground Utility Locating Company in Maryland, DC, and Northern Virginia

Welcome to Tri-state Utility Locating: Still the Best Value in MD, DC, and VA Since 2008!

Have you been looking for a private utility locating company in DC, Maryland and Virginia who you can trust to get the job done right for a fair price? Well look no further! Since our establishment in 2008,Tri-state Concrete Scanning has specialized in providing quality professional private utility line marking services to homeowners and businesses throughout Maryland and Virginia, including the Washington, DC and Baltimore Metropolitan areas. We are proud of the fact that Tri-state Utility Locating continues to be a family owned and operated business.

When it comes to your Uderground Utility Lines, you deserve a company with a dedicated commitment to customer satisfaction and never-ending ambition to provide the latest technical services available. That’s why, at Tri-state Utility Locating, we offer our legendary private utility locate services 24 hours a day, 365 days a year. Best of all, with three offices located in the DC and Baltimore Metropolitan areas, Tri-state Utility Locating is never far away when you need us. If you ever have a concern or question about your project's concrete locating needs or if you need a Utility Locate Technician out to your house, contact us today!

No job is too large or too small for the expert Utility Locate technicians at Tri-state Utility Locating. For a free estimate for your underground locate work, call us today at 410-361-0352!

24 hour Utility Locate Technicians

When you need private underground utility locating service in DC, Maryland, or Virginia, you need it right away. That’s why Tri-state Utility Location offers fast service, often same day! From a minor core-drilling project to major concrete cutting projects and everything in between, the DC Utility Locate Technicians at Tri-state Utility Locating are there to ensure your project stays on-budget and on-time.

Our Utility Locate Technicians Specialize in Residential and Commercial Services

Top Utility Locating Company in MD, DC, and VA

Since 2008, Tri-state Utility Locating has proudly offered outstanding Underground Utility Locating Services to the construction industry. Our Utility Locating Techncians specialize in:

  • Locating public and private utilities
  • Consultation prior to excavation or digging
  • Conduit locating (using both GPR and EMF detector)
  • One call utility locating services
  • Mark private underground utilities like sewer lines, private lighting, sprinklers, fire mains, secondary electric lines to detached garages, and septic lines
  • NON-DESTRUCTIVE and NON-INVASIVE detection of underground utilities, leaks and other buried anomalies using the latest EMF technology
  • Void location
  • Underground Utility Location using GPR
  • SUE - Subsurface Utility Engineering

Whether you want to drill through a concrete slab, or excavate / dig in your backyard, or just curious about what is in your private yard, Tri-state Utility Locating can help you avoid potentially damaging underground cable, gas, water, sewer lines. Our uniformed, professional Utility Locate Technicians are trained to handle a wide variety of residential and commercial Underground Excavation issues.

Utility Location using the advanced Ground Penetrating Radar (GPR) technology

Top Utility Locating with GPR Company in MD, DC, and VA

Tri-state Utility Location offers a full array of excellent commercial services to businesses and offices in the DC metropolitan area. The folowing will convince you to call our Utility Locate technicians today:

  • Best in the industry, detailed SUE reports with post processed images are provided within 72 hours of locating.
  • We only use the best technology available in the market for accurate target location.
  • Both day rate and contract rates are available.
  • We are available to work regular hours as well as after hours and weekends with prior scheduling.
  • We will provide you with samples of our past work so you can make an informed decision when you pick us.
  • Last, but not the least, for peace of mind, knowing that you are well-informed with our underground locate information prior to digging or excavation.

We are a family owned and operated business that has been serving the Baltimore and Washington, DC Metropolitan areas since 2008. We are committed to providing superior Underground Utility Locating services for residential spaces, as well as industrial, commercial, and construction businesses. The valuable advantages we can offer you are great service, high quality concrete scanning products, and Underground Utility / GPR technicians at a competitive price.

With three local offices, multiple utility locators, best Underground GPR and Radiodetection technology, and one of the most excavation savvy fleets in the Mid-Atlantic Region we are able handle any size project.

So, if you’re planning a concrete cutting project, and you’re looking for a quality job without the outrageous prices, contact us today to arrange for a free quote.

Our MD, DC, and VA GPR Technicians Are…

  • Courteous, professional, and punctual
  • Knowledgeable and experienced
  • Accurate and efficient troubleshooters that can save you time and money
  • Equipped with the latest diagnostic tools and parts
  • Trained to handle any Underground issue or problem
  • Equally skilled in residential and commercial services

For all your Private Underground Utility Locating needs in Washington, DC, Maryland, or Virginia, contact the Utility Locate Technicians at Tri-state Utility Locating today – 410-361-0352 or click here!

We will try our best to meet or beat any competitor's price!