
Underground Utility Line Locating in Austin, TX
811 marks are only the starting point. Cavayoo provides private utility line locating using electromagnetic and, when needed, ground-penetrating detection - finding underground sewer, water, electrical and communication infrastructure that 811 doesn't cover, plus verifying the accuracy of the ones it does. It's the difference between a smooth excavation and a five-figure strike.
Why contractors choose this service
- ✓Finds private utilities 811 does not mark - irrigation, low-voltage, private water and sewer
- ✓Verifies accuracy of 811 locate marks before excavation
- ✓Prevents strikes and OSHA-reportable incidents
- ✓Reduces project delays from unknown utility discovery
- ✓Pairs with hydro-potholing for full Level A verification
Common use cases
- →Private property utility scans before excavation
- →Commercial and industrial site pre-construction
- →Locating abandoned lines and unknown utilities
- →Property line and utility easement disputes
- →Golf course, HOA, and municipal facility locating
On-site workflow
Our process
- 01
Site sweep
Our technician sweeps the work zone with electromagnetic locators and, when required, ground-penetrating radar.
- 02
Mark & map
Utilities are painted, flagged and mapped against your site plan - with type, depth estimate and confidence level.
- 03
Handoff to crew
We walk the site with your foreman so everyone starts on the same page before excavation begins.

What contractors and homeowners say
What customers say about our line locating work
Retail buildout downtown - we needed private utilities located inside a tight easement. They marked every line, gave us a PDF for the permit set, and saved us a week.
Sofia N.Project Manager, Austin CBD · Austin, TXRunning a 300-ft irrigation feed through a Cedar Park subdivision - they located every private utility we needed and marked the yard cleanly. Made the bore go smooth.
ChrisIrrigation Contractor, Cedar Park · Cedar Park, TXNeeded potholes on a Dell campus tie-in. Crew was OSHA-tight, minimal spoil, and the utility depths matched the as-builts to the inch.
KarenSite Super, Round Rock · Round Rock, TXNew build in Travisso, developer's line locate was garbage. Cavayoo came out, found two abandoned laterals nobody knew about, saved us a whole day of guessing.
BenFoundation Contractor, Leander · Leander, TXWe were tying into a 12-inch water main in Sun City. Cavayoo daylighted the utility and gave us a report the engineer signed off on same day.
TrevorUtility Contractor, Georgetown · Georgetown, TXSub-slab leak nobody could pinpoint. Their locator narrowed it to a 3-ft window and we cut one tile instead of half the kitchen.
AmberHomeowner, Pflugerville · Pflugerville, TX
Quotes reflect representative customer feedback across Central Texas job sites. First names and roles only, per customer privacy.
Utility Line Locating - recent field work
Real crew footage and photos from Cavayoo's Central Texas job sites. Video tiles are placeholders - swap them out with real clips once you have them.
Hydro-Excavation
CCTV Inspection
Pipe Jetting
Line LocatingContractors and cities that trust Cavayoo for utility line locating
A short list of the GCs, sitework partners, and municipalities who bring us in on utility work across Central Texas.
Sitework ContractorJimmy Evans Company
General ContractorJL Gray Construction
ExcavationCLS Excavation Inc.
ConstructionPatin Construction
MunicipalityCity of Round Rock, TX
Line Locating FAQ
Frequently asked
Isn't 811 free? Why pay for private locating?
Do you use ground-penetrating radar?
Can you locate abandoned lines?
What utilities can you actually detect?
How accurate are your locate marks?
Do you provide a written report or just paint marks?
How quickly can you get out for a locate?
How much does private utility locating cost?
Line Locating across Central Texas
We run line locating crews out of Cedar Park and cover the greater Austin metro within a 100-mile radius. Pick your city for local context, common issues we see there, and a fast quote.
Line Locating in Cedar Park, TX
New construction sewer line verification before final backfill
Open Line Locating page →Line Locating in Leander, TX
New subdivision sewer inspection before final acceptance
Open Line Locating page →Line Locating in Round Rock, TX
Clay soil complicating traditional excavation - hydro-vac is often the better call
Open Line Locating page →Line Locating in Liberty Hill, TX
New subdivision sewer pre-backfill inspection
Open Line Locating page →Line Locating in Austin, TX
NASSCO PACP-coded sewer inspection for real-estate transactions and lender-required reports
Open Line Locating page →Line Locating in Georgetown, TX
Historic downtown clay sewer line condition surveys
Open Line Locating page →- Line Locating in Pflugerville
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