HIRE A TRUSTED RESIDENTIAL EXCAVATION CONTRACTOR IN LONGMONT, CO COUNT ON US TO DO THE JOB RIGHT Want to get your concrete driveway replaced? Our crew can handle that. Need to adjust the slope of your yard to prevent flooding? Trey's Concrete & Excavating, LLC is the company to call. You can rely on us for all your residential excavation and concrete needs in Longmont, CO and surrounding areas. Our lead residential excavation contractor has over 20 years of experience, and we're dedicated to providing quality service.