Before you hire a utility locating company, you need to know what separates a reliable operator from one that'll miss a line and cost you thousands. Utility location is a specialized, regulated service—cutting corners means hitting gas, electric, water, or telecommunications lines, which creates liability, injury risk, and project delays. This checklist walks you through the essentials so you pick a provider you can trust.
Verify Licensing and Certifications
Your locating company must hold the licenses required in your state. Most states require utility locators to be certified through organizations like NULCA (National Utility Locating Certification Association) or equivalent programs. Ask for proof of current certifications and check whether they're active on your state's regulatory board website.
Insurance is non-negotiable. Request certificates of liability insurance (minimum $1 million coverage) and ask if they carry errors and omissions insurance. A reputable company won't hesitate to provide these documents.
Confirm Their 811 Integration
All utility locating should begin with a call to 811, the national "call before you dig" number. Your provider must file the locate request through the appropriate regional one-call center serving your project area and follow the mandatory ticket timeline (typically 2–5 business days for standard locates).
Ask specifically:
- Do they file the 811 request on your behalf, or do you file it?
- How do they track ticket status and manage missed flags?
- What's their policy if a utility fails to respond by the deadline?
A solid company handles 811 compliance as routine procedure, not an afterthought.
Evaluate Equipment and Capabilities
Not all locating companies have the same tools. Depending on your project, you may need:
- Ground-penetrating radar (GPR): Finds non-metallic utilities like PVC and fiber optics
- Electromagnetic locators: Standard for metallic lines (gas, water, electric)
- Magnetic locators: For cast-iron or steel pipes
- Pipe and cable avoidance tools: For confined spaces or dense underground infrastructure
Ask what equipment they own versus rent or subcontract. If they frequently outsource specialized work, expect longer turnaround times and potential hand-off communication gaps.
Check Response Time and Availability
How quickly can they mobilize? Standard locate requests take 2–5 days after the 811 ticket is issued. Emergency or urgent locates (for emergency utility repairs) should be turnaround within hours.
Confirm their service hours. Do they work nights, weekends, or holidays? If your project is time-sensitive, verify they can accommodate your schedule. Emergency services often cost 25–50% more than standard rates but are essential for emergency repair situations.
Review Pricing Structure
Utility locating costs vary by scope and region, but typical ranges are:
- Residential lot locate: $150–$350
- Small commercial project: $250–$600
- Large multi-utility industrial site: $800–$2,000+
- Emergency/rush service: Add 25–50% premium
Ask for itemized quotes that break down the number of utilities being located, site complexity, travel distance, and any extra services (like GPS mapping or as-built documentation). Watch for companies quoting significantly below market rate—they may cut corners on thoroughness.
Ask About Marking Standards and Documentation
Locates should follow the ANSI/ATIS/APWA Color-Code Standard (white, yellow, red, blue, green, orange, pink for different utilities). Confirm they mark lines clearly and mark the locate ticket number on-site.
Request as-built documentation or locate reports. Digital records with photos, GPS coordinates, and utility line depths help protect you later if disputes arise about what was or wasn't marked.
Get References and Check Reviews
Ask for 3–5 recent customer references, especially from projects similar to yours. Call them and ask:
- Was the locate accurate and timely?
- Did they follow up if utilities didn't respond?
- Were there any issues with the marked locations?
Also search online reviews and the Better Business Bureau. Utility locating companies with poor marks often have histories of incomplete locates or missed tickets.
Use a Comparison Tool
Finding multiple qualified providers and vetting them individually is time-consuming. Platforms like Mercoly help you compare and find trusted utility locating and 811 services providers in one place, complete with verified credentials and customer feedback.
Frequently Asked Questions
Q: What's the difference between a utility locate and an 811 call? An 811 call is the notification step that alerts all utilities you plan to dig; a utility locate is the marking service that physically identifies where lines are buried. You always call 811 first, and they coordinate which utilities send locators.
Q: Can I do the 811 request myself, or do I need to hire the locating company? You can call 811 yourself, but most locating companies file it for you as part of their service—this reduces confusion and ensures the ticket references the correct contact and site details.
Q: What happens if a utility doesn't show up to mark their line after I call 811? After 2–5 business days with no response, that utility is legally considered a "no-call," and you can proceed with caution in that area. Your locating company should flag this and advise you on next steps.
Start comparing local utility locating providers today using our checklist and verified provider network.