Hiring the wrong utility locating company can lead to costly delays, project shutdowns, or worse—damaged lines that create safety hazards. Before you sign a contract or schedule a service visit, you need to understand what separates a reliable locator from one that cuts corners. Here's what to ask.
Verify They're Properly Certified and Insured
Ask for proof of current certification from your state's utility locating regulatory body. Most states require locators to be certified by organizations like the Common Ground Alliance (CGA) or equivalent local authorities. Request their liability insurance certificate and workers' compensation coverage—minimum $1 million in general liability is standard for reputable firms.
Don't settle for verbal confirmation. Ask them to email you copies of these credentials before the work date. If they hesitate or can't produce documentation, move on.
Understand Their Response Time and Availability
Utility locating isn't a "whenever" service. Ask specifically:
- What's their typical turnaround time from request to on-site location?
- Do they offer emergency or same-day locating?
- Are they available for weekend or after-hours work if you need it?
Most established companies promise 24–48 hour response times for standard requests. Emergency locating typically costs 20–50% more but gets you service within hours. If your project has tight deadlines, confirm they can accommodate before hiring.
Ask About Their Equipment and Locating Methods
Different projects need different approaches. Ask what equipment and detection methods they use:
- GPR (Ground Penetrating Radar): Best for finding non-metallic lines like plastic water mains or fiber optic cables. More expensive but highly accurate.
- Electromagnetic locating: Standard for metallic pipes and cables. Faster and cheaper but won't detect all utility types.
- Visual/potholing: Sometimes necessary to expose lines for physical verification.
A good locating company should explain why they'd use one method over another for your specific job. If they jump to the cheapest method without asking about your utilities, that's a red flag.
Clarify What They'll Mark and Document
Ask exactly which utilities they'll locate and mark. Typical services include:
- Gas lines
- Electric lines
- Water and sewer mains
- Telecommunications
- Irrigation or drainage systems
Some companies charge per utility line located. Others offer flat rates for standard packages. Get a written quote that itemizes what's included. Also ask how they'll mark lines—standard colors follow CGA guidelines (red for electric, yellow for gas, blue for water, green for sewer, orange for telecommunications).
Request that they provide documentation of their findings. Photos, a marked site plan, or a written report protects both of you and serves as a reference if issues arise later.
Discuss Pricing and Payment Terms
Utility locating costs range widely depending on complexity and location:
- Basic residential locating: $150–$400 per visit
- Commercial or multi-utility projects: $500–$1,500+
- Emergency or rush service: Add 20–50% to standard rates
Ask if they charge by the hour, per utility, or per visit. Clarify whether the quote includes marking, documentation, and site cleanup. Some companies charge extra for site marking or for locating lines beyond a certain depth.
Get the quote in writing before work begins. This prevents surprise invoices and sets clear expectations.
Confirm 811 Call-in Coordination
If your project requires a utility damage prevention call to 811, ask whether the locating company will:
- Handle the 811 notification themselves
- Require you to call 811 beforehand
- Work as a second-call locator after the 811 utility responses
Different states and situations have different requirements. A knowledgeable locator will explain your local rules clearly and tell you what steps need to happen in what order.
Ask for References
Request at least two recent project references—preferably from contractors or property owners with similar project sizes or complexity. A quick call to a past client takes 10 minutes and reveals whether the company shows up on time, communicates clearly, and stands behind their work.
Comparing multiple utility locating providers ensures you get fair pricing and reliable service. Tools like Mercoly let you find and compare trusted locators in your area so you can make an informed choice quickly.
Frequently Asked Questions
Q: Do I need to call 811 myself before hiring a utility locator? It depends on your state and project type. Some locators handle the 811 call as part of their service; others require you to initiate it first. Always clarify this upfront.
Q: How long does a typical utility locating job take? Most standard residential or small commercial jobs take 2–4 hours on-site, though documentation and marking might add time depending on site complexity and utility density.
Q: What if the locator misses a utility and it gets damaged during my project? That's why liability insurance matters. The locating company's insurance should cover damages caused by their negligence. Always confirm coverage limits in writing before work starts.
Start your search for a qualified utility locating provider today and get accurate, insured service you can trust.