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*The Angi rating for Excavation companies in Willis, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

*The HomeAdvisor rating for Excavation companies in Willis, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

Last update on May 23, 2025

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Dig Big LLC
New to Angi

Serving Willis, VA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

At Dig Big LLC, we specialize in high-quality concrete work and the installation of durable, manufactured retaining walls that enhance both the function and beauty of outdoor spaces. Whether you need a strong, reliable wall to prevent erosion, define your landscape, or add visual appeal to your property, our expert team ensures precision installation using top-tier materials. Our concrete patios and walkways are built to last, offering a stylish and low-maintenance solution for any outdoor area. In addition to retaining walls and concrete surfaces, we provide custom hardscaping services to create functional and attractive outdoor spaces. With competitive pricing and a commitment to excellence, Dig Big LLC is ready to bring your vision to life. Contact us today to start your next project!

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Excavating questions, answered by experts

Sewer lines can be buried anywhere from 18 inches to 8 feet deep, with a common average depth between 18 and 30 inches. The exact depth depends on local factors like climate and soil type. In colder regions, pipes must be buried deeper (below the frost line) to prevent freezing, sometimes as deep as 8 feet. The digging depth can also impact the cost of sewer line replacement. To find the specific depth for your property, you can check the building plans for your system, which should be on file with your city or local sanitation department since permits are required for installation.

You can dig 60 to 80 linear feet by hand per day depending on the depth. Digging a 100-foot trench by hand will take you two work days, but it can take longer if you have heavy or rocky soil. If you’re digging a deep trench or one that’s over 100 feet, consider renting a mechanical trencher, such as a walk-behind or ride-on, or calling a pro for help. 

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

Yes, you can install a trench drain if you already have concrete in your yard or garden. While it can complicate some aspects of the job and slightly run up the cost, it is doable. Residential trench drains can be easily retrofitted to outdoor areas with concrete without having to remove excessive amounts of your patio, pool area, or decorative walkways.

You can bury underground electrical wire six inches deep—but only if you use a rigid metal electrical conduit. For rigid, non-metallic conduits, bury the wire at least 12 inches deep. If using an underground feeder cable rated for direct burial, you'll need to place it at least 18 inches deep, as it has no conduit for extra protection.

The Willis, VA homeowners’ guide to excavation services

From average costs to expert advice, get all the answers you need to get your job done.

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