What can our local paving company do for you? Preparing to build your dream home? Reach out right away to speak with an excavation contractor and arrange for site preparation services. When you need to install a spacious parking lot or a winding walkway, there's only one company to call. Welch Dirt Work offers a wide range of services in Las Cruces, NM. Customers turn to us for: Excavation services Asphalt paving services Asphalt sealcoating services Property sweeping services.