GPS Layout and Survey Services for San Antonio Earthwork Contractors
Lone Star Layouts delivers machine control modeling, site staking, as-built surveys and anchor bolt layout across San Antonio, Bexar County and the surrounding Hill Country corridor.
Backed by Stone River Excavation, 11 years Texas earthwork experience
10+ years hands-on BIM, modeling, and layout experience
Trimble, Topcon, Leica and Civil 3D certified
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San Antonio GCs Are Raising the Technical Bar on Every Commercial and Industrial Scope
The volume and scale of construction moving through San Antonio has pulled GC documentation and deliverable requirements up with it. Machine control-compatible files, BIM submissions and documented as-built records that were once reserved for large highway or federal projects are now showing up as contract requirements on commercial pads, industrial tilt-up sites and subdivision grading scopes across Bexar County.
Most earthwork contractors working in the San Antonio market did not need to produce these deliverables two years ago. They do now, and the local vendor depth to support them has not kept pace with the demand.
That is the opening Lone Star Layouts was built to fill.

Remote Delivery Plus Field Coverage Across the San Antonio Metro
Remote services reach San Antonio contractors on the same turnaround as Houston or DFW. A 3D terrain model, a GPS grade control file or a cut-fill takeoff is built from your design files and delivered within one to two business days, formatted for your equipment platform and ready to load.
Field crews are available for site staking, as-built surveys, topographic surveys and anchor bolt layout across Bexar County and the surrounding region. Lone Star Layouts is backed by Stone River Excavation, eleven years of Texas earthwork. That background covers the same project types running in San Antonio right now.

Civil Tech Services Available in San Antonio and Bexar County
Remote services are available immediately. Field services are deployed across Nueces, San Patricio and surrounding Coastal Bend counties.
Remote Services
Delivered digitally, anywhere in the U.S.

3D Modeling and BIM Services
We take your CAD files and survey data and build the 3D model your GPS equipment needs to run. Earthwork contractors see productivity increases of 33-40% on GPS-guided sites versus conventional layout.
Learn moreGPS Grade Control Modeling
We produce the machine control files your dozers, graders and scrapers run directly. Trimble, Topcon and Leica format. No translation layer, no guesswork.
Learn moreEarthwork Takeoffs
Cut and fill quantities calculated from your plans before you bid. Know your dirt before you commit to a number.
Learn moreQA/QC Services
As-built documentation, compliance surveying and construction quality control records that give your GC what they need to close out the project.
Learn moreField Services
Across Houston, DFW, Rio Grande Valley and Corpus Christi

Site Staking and Layout
Construction layout from your plans to the ground. Property lines, building corners, grade stakes. Your crew can build from what we put in.
Learn moreAs-Built Surveys
We document what was actually built. GPS-accurate, formatted to your GC's requirements, delivered on your schedule.
Learn moreTopographic Surveys
Topo data collected via drone or rover. Fast turnaround, Texas-wide coverage.
Learn moreAnchor Bolt Layout
Millimeter-level precision for pre-engineered metal buildings and steel structures. If the bolts are off, the building is off. We make sure they're not.
Learn moreNot sure which service you need? Call us: 713-581-9345
Why San Antonio Earthwork Contractors Work with Lone Star
11 years
of Texas earthwork experience behind every deliverable
Coastal Bend field
coverage across Nueces and San Patricio counties
Trimble, Topcon and Leica
platforms supported natively
48-hour turnaround
commitment on standard as-built surveys
Remote delivery
with same-day and next-day options available
We Work Across Texas. And Anywhere a File Can Travel.
Our remote services go where the project is. Our field crews cover the major earthwork corridors across Texas.
Frequently Asked Questions from San Antonio Contractors
Do you cover both the city of San Antonio and the surrounding Hill Country counties?
Yes. We deploy field crews across Bexar County and the surrounding counties including Comal, Guadalupe, Medina and Atascosa. If your project is on the Hill Country edge of the metro or in a county not listed, contact us with the location and we'll confirm coverage before you schedule.
Does Hill Country terrain affect your topo survey methods?
No. A topographic survey captures the actual ground surface as it sits, so the grade changes and rock common to the Hill Country edge of the metro just mean the survey and model reflect what is really there. We deliver the surface data in the format your design or grading work needs.
Do you work on military and government-adjacent construction projects in San Antonio?
We deliver the same civil tech scope these projects call for, including machine control modeling, site staking, as-built surveys and QA/QC documentation. Government-adjacent and military-adjacent work often carries specific credential, access or submittal requirements, so tell us what the project requires up front and we'll confirm we can meet it before you commit.
How quickly can you schedule a field crew in San Antonio?
We schedule field crews across Bexar County and the surrounding region, and availability depends on the current field calendar. Give us as much lead time as you can along with your project location and dates, and we'll confirm a crew date when you contact us. Remote services carry no scheduling lead time.
Can I use your remote services from San Antonio for a project in another Texas market?
Yes. Remote services are delivered digitally on the same one to two business day turnaround regardless of where the project sits, and your location does not change the format or pricing. If the project also needs field work, send us the location and we'll confirm coverage across the Texas corridors we serve.
Ready to Quote a San Antonio Project?
Tell us what you need and we'll get back to you within one business day. Remote services are available immediately. Field crew scheduling for San Antonio-area projects is confirmed at quote.
Remote and field services available. Most quotes returned within one business day.


