Private Utility Locating in illinois

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Liberty Locating finds and marks private underground utilities

Liberty Locating finds and marks the private underground utilities that 811 doesn't cover — keeping your crews safe, your projects on schedule, and your liability low. We serve contractors, developers, municipalities, and industrial facilities across the entire state of Illinois.

Schedule an Illinois Locate
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WHY PRIVATE UTILITY LOCATING MATTERS IN Illinois

Illinois carries more underground infrastructure per square mile than almost any other state in the Midwest. The Chicago metro alone — home to nearly ten million people and one of the busiest construction markets in the country — sits on top of a staggering density of underground utilities, many of which were installed generations ago and exist on drawings that are incomplete, inaccurate, or simply no longer available. Suburban Cook, DuPage, Kane, Lake, and Will counties continue to see massive commercial and residential development activity, pushing construction crews into ground that holds decades of private utility infrastructure with little to no documentation.

Beyond Chicagoland, Illinois is home to significant industrial corridors, agricultural operations, and mid-sized cities — Peoria, Rockford, Springfield, Champaign, Bloomington, and Decatur — each with their own aging underground infrastructure and active construction markets. The state has one of the highest concentrations of underground storage tanks in the Midwest, a legacy of its industrial economy and the agricultural fuel distribution networks that cross the state's vast interior.

811 coordinates the marking of publicly-owned utility lines — the mains running in streets and public rights-of-way. But the moment those lines cross onto private property, 811 coverage ends completely. Every utility line running across a commercial property, industrial campus, apartment complex, or private parcel is entirely your responsibility to locate before breaking ground.

In a state where construction activity is intense, underground infrastructure is dense, and legal liability for utility strikes is serious, the cost of skipping a private locate is simply too high. Liberty Locating uses electromagnetic (EM) locating and ground penetrating radar (GPR) to map private utilities before you break ground — anywhere in Illinois, from the Chicago suburbs to the southern tip of the state.

Our Private Utility Locating Services in Illinois

  • A section of underground pipeline with multiple valves and fittings, surrounded by soil and dirt.

    Electromagnetic Induction

    We use electromagnetic induction (EMI) technology to detect and map subsurface metallic objects without disturbing the ground. From buried tanks and drums to pipelines and other ferrous materials, we help you identify hidden metal hazards before excavation or development begins.

  • Construction worker wearing a hard hat and safety vest on a construction site, with another worker taking photos in the background, trees, and construction equipment.

    Pre-site investigations

    We conduct comprehensive pre-site investigations to identify potential subsurface risks before construction or development begins. From buried utilities and storage tanks to unknown obstructions and soil concerns, we help you understand site conditions early so you can plan with confidence.

  • Black and white image of a wall with a power outlet and conduit pipe, with a white painted block with the word 'UTILITY' spray painted on it in black, viewed upside down.

    Private Utility Locating

    We use a combination of electromagnetic (EM) locating and ground penetrating radar (GPR) to find and mark private underground utilities before you dig, drill, or trench. From power and gas to communications and water, we help you know what’s below.

  • A hand holding a tablet displaying a map of Ottawa with marked points and text labels, on a light outdoor surface.

    Subsurface Mapping & Documentation

    Paint on the ground doesn’t last—maps do. We can capture utility locations and depths and deliver simple site sketches or digital files your team can reference on future work, reducing guesswork on every project that follows.

  • Construction workers wearing safety helmets and vests on a construction site with trees and construction materials in the background.

    Underground Consultation

    We provide underground consultation services to help you assess subsurface risks before excavation or development begins. From utility mapping and tank locating to site planning and regulatory considerations, we help you make informed decisions about what lies below.

  • A circular metal street drain cover with the words 'SANTA RY' and 'SEWER' embossed on its surface, surrounded by rough asphalt pavement.

    Underground Storage Tank Locates

    We use a combination of electromagnetic (EM) locating and ground penetrating radar (GPR) to detect and outline underground storage tanks before excavation or construction begins. From abandoned fuel tanks to active petroleum and water storage systems, we help you identify what’s buried below.

Our Services

General Contractors & Excavators

We coordinate directly with your crew, work around your dig schedule, and show up when we say we will. We understand how Illinois job sites operate — from complex urban excavations in the Chicago suburbs to open-site work in central and southern Illinois — and we bring the communication and professionalism that keeps your project moving.

Civil & Geotechnical Engineers

Engineering firms throughout Illinois rely on accurate subsurface utility data to design safe, code-compliant projects. We provide the field data and documentation your team needs — site sketches, utility depth estimates, and digital mapping files that integrate directly into your engineering workflow and support your deliverables.

Commercial Property Developers

The Chicago metro remains one of the most active commercial development markets in the country. Suburban corridors in DuPage, Kane, Lake, and Will counties are seeing sustained growth. Private utility conflicts are among the most common and most expensive surprises in commercial development. We eliminate that variable before it becomes a change order.

Environmental Consultants

Phase II environmental investigations, brownfield redevelopment projects, and LUST (leaking underground storage tank) assessments throughout Illinois regularly require subsurface utility investigation. We work alongside environmental consultants and provide the documentation needed to support your regulatory reporting requirements.

Industrial Facilities & Manufacturing Plants

Illinois is home to an enormous concentration of manufacturing, processing, and distribution infrastructure. Active facilities with decades of operational history often have private utility networks that no longer match any drawing on file. We map what's actually there — not just what aging records claim.

Telecommunications & Utility Contractors

When you're installing new underground infrastructure across Illinois — from urban conduit runs in Chicago to rural fiber buildouts in central and southern Illinois — knowing what's already in the ground is not optional. We make sure your crews have accurate subsurface information before installation begins.

Schedule a Kansas Locate
A man in a hoodie and cap using a metal detector on a grassy field in a residential area with houses and playground in the background.
Close-up of a blue vehicle with a sticker that says 'Liberty Locating' and 'Private Utility Detection & Mapping.'
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Why illinois Contractors Choose Liberty Locating

Your site mapping data is hosted by US based software companies — not on overseas servers. That matters for sensitive commercial and industrial sites.

We bring both EM locating and GPR to every engagement, using the right technology for the conditions. Not every company does — and that difference shows up in accuracy.

We're not a national dispatch center. Liberty Locating is a Kansas City-based, family-owned company. When you call, you talk to real people who live and work in this region — not a call center routing your job to a mystery technician.

We understand that construction timelines don't wait. We work to accommodate your schedule — and can often get on site within a few days of your request across Illinois.

We coordinate our work around your 811 ticket so there's no confusion about what's been marked and what hasn't. You get a complete picture of what's underground — public and private.

We coordinate our work around your 811 ticket so there's no confusion about what's been marked and what hasn't. You get a complete picture of what's underground — public and private.

Schedule a locate today

We make it easy to add professional private locating to your workflow.

Step 1 – Request a Locate

Send us your site address, plans, and dig area. We’ll confirm details, coordinate around your 811 ticket, and schedule a visit that fits your timeline.

Step 2 – We Scan & Mark

On site, our technicians use the right mix of EM locating, GPR, and field experience to locate private utilities. We clearly mark found lines and features so your crews can see exactly what’s underground.

Step 3 – You Dig with Confidence

With clear markings—and optional documentation for your records—you can move forward knowing you’ve taken the right steps to reduce risk and protect your people, project, and property.

FAQs

  • Yes. Private utility locating is not a replacement for 811. You’re still required to call 811 before digging so the public utilities can mark the lines they own. We come in to locate the private lines that 811 doesn’t cover.

  • We recommend reaching out as soon as you know your dig date. Depending on workload and site location, we can often accommodate projects within a few days.

  • Site address, a description of your planned work, the area to be scanned, and any existing drawings or as-builts you have. The more information you share, the more efficient and accurate we can be.

  • Yes. Our technicians are used to working around active operations, contractors, and plant protocols. We’ll coordinate with you to minimize disruption.

Cities & Zip Codes we Serve in Illinois

Chicago | Aurora | Joliet | Naperville | Rockford | Springfield | Elgin | Peoria | Champaign | Waukegan | Cicero | Bloomington | Arlington Heights | Evanston | Decatur | Schaumburg | Bolingbrook | Palatine | Skokie | Des Plaines | Orland Park | Tinley Park | Oak Lawn | Berwyn | Mount Prospect | Normal | Wheaton | Hoffman Estates | Oak Park | Downers Grove | Elmhurst | Glenview | DeKalb | Moline | Belleville | Urbana | Lansing | Carol Stream | Streamwood | Carpentersville | Plainfield | Buffalo Grove | Bartlett | Romeoville | Hanover Park | Loves Park | Calumet City | Woodridge | Addison | Lisle | North Chicago | Gurnee | Oswego | Mundelein | Round Lake Beach | Danville | Galesburg | Quincy | Rock Island | Kankakee | Pekin | Granite City | Alton | East St. Louis | O'Fallon | Collinsville | Edwardsville | Glen Ellyn | Lombard | Elk Grove Village | Park Ridge | Niles | Orland Hills | Mokena | New Lenox | Frankfort | Crest Hill | Shorewood | Minooka | Yorkville | Oswego | Montgomery | Sugar Grove | Batavia | St. Charles | Geneva | South Elgin | Algonquin | Crystal Lake | McHenry | Antioch | Zion | North Aurora | West Chicago | Warrenville | Wheeling | Vernon Hills | Libertyville | Lake Zurich | Barrington | Cary | Woodstock | Harvard | Marengo | Dixon | Sterling | Rock Falls | Morrison | Freeport | Savanna | Galena | Macomb | Canton | Havana | Beardstown | Jacksonville | Carlinville | Jerseyville | Godfrey | Worden | Highland | Waterloo | Red Bud | Chester | Sparta | Nashville | Mount Vernon | Marion | Carbondale | Murphysboro | Herrin | West Frankfort | Benton | McLeansboro | Carmi | Eldorado | Harrisburg | Metropolis | Cairo | Olney | Flora | Salem | Centralia | Breese | Troy | Maryville | Worden | Highland | Greenville | Vandalia | Effingham | Mattoon | Charleston | Paris | Tuscola | Arcola | Arthur | Shelbyville | Sullivan | Pana | Taylorville | Lincoln | Atlanta | Pontiac | Streator | Ottawa | Peru | La Salle | Mendota | Princeton | Geneseo | Kewanee | Monmouth | Macomb | Carthage | Warsaw | Hamilton | Keokuk area

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