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The safest method is to hire a professional who uses specialized tools like electromagnetic locators. For any digging project, it's also crucial to call 811, the free national service that marks public utility lines on your property. This will help you avoid accidentally hitting a buried cable.

There are several factors that might impact the cost of this project, including:

• The size of the area you need scanned: A larger property generally takes more time and resources to survey thoroughly.

• The complexity of the terrain: A flat, open lawn is typically easier and faster to scan than a sloped yard with trees, gardens, or other obstacles. If the area is cluttered, you may need yard cleaning services to provide clear access first.

• The depth and number of cables: Locating multiple types of utilities or cables buried deep underground can require more advanced equipment and take more time.

• Site accessibility: Difficult-to-reach areas, fences, or other barriers can add labor and cost.

• The quality of existing records: The job may go more quickly if you have accurate utility maps or blueprints.

Yes, that's exactly what cable locators are designed for. They use a transmitter to send a signal through a conductive cable, and a receiver traces that signal to map the cable's path and depth. This process is essential for safely digging without hitting buried lines.

Typically, it will take a professional a few hours to locate underground cables. The total time depend on a few factors. For example:

• Property size: A larger yard or work area will naturally take more time to scan thoroughly.

• Utility density: A site with many overlapping cables and pipes requires more careful work to identify and mark each one correctly.

• Record accuracy: If utility blueprints are outdated or missing, the pro has to rely entirely on their equipment, which can extend the timeline.

• Site accessibility: Difficult terrain, dense vegetation, or physical barriers like sheds and concrete patios can make it harder to maneuver equipment.

• Equipment type: The specific technology a pro uses can affect the speed and precision of the location process.

Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.

Consider hiring a pro if you're doing any of the following:

• Planning a digging project. If you’re preparing to dig for any reason — such as installing a pool, building a deck foundation, or trenching for a sprinkler system — you’ll need to know what’s below ground first.

• Installing a fence or posts. Putting in a new fence, mailbox, or even a basketball hoop requires digging holes that can damage a buried cable.

• Preparing major landscaping work. Before you plant a large tree, grind a stump, or regrade a section of your yard, it’s critical to locate any underground lines.

• Experiencing unexplained electrical problems. If you're having power flickers or outages in one part of your home or yard, it may point to a damaged underground service line that needs to be found and repaired.

• Mapping a new property. If you’ve recently bought a property and don’t have a map of the buried utilities, locating them proactively can save you from costly and dangerous accidents down the road.

When looking for a contractor to help locate underground cables, make sure you complete the following steps:

• Verify their license and insurance: While specific certification requirements vary by region, a qualified professional should have general liability insurance. Some states may also require a specific utility locating or contractor's license.

• Get several bids: A good estimate will outline the total area to be scanned, the types of cables they'll be looking for, and the methods they plan to use. It should also clearly state whether they charge by the hour or a flat fee for the project.

• Read their reviews: Look for reviews that praise a pro’s accuracy, thoroughness, and professionalism. Red flags include complaints about missed cables or inaccurate markings, which can lead to dangerous and expensive problems.

• Look at their portfolios: Their past work should show experience with projects similar to yours, whether it’s for a residential fence installation or a larger commercial excavation. Look for clear examples of how they marked utility locations on-site.

• Find out if they have warranties: While it's difficult to guarantee that every single buried object will be found, some pros may offer a guarantee on the accuracy of their markings.

• Ask important questions: Be sure to ask, “What technology do you use to locate cables?” and “What is your process if you find an unexpected utility line?”