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Top-Rated Excavation pros in Pinesdale - Updated Nov 2026

Avatar for Williams Dirtworks
Williams Dirtworks
3.0(
4
)
Excavation - Major Grading or ReslopingBuilding Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business+2 more

Serving Pinesdale, MT and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"Jason is amazing at what he does. He helped completely clear out a large portion of our backyard of debris, overgrown weeds, and mountains of leftover fill material and leveled it all out to make way for new landscaping. He also framed in a rock border for the finishing touch. He was professional, efficient, and very reasonably priced. I would highly recommend him for any landscaping projects!"
Slope work
Slope work
Shed pad
3 neighbors recently requested a quote
Avatar for Paske Excavation LLC
Paske Excavation LLC
5.0(
2
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Pinesdale, MT and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Hired them and they started the job the next day since they already had the equipment here, which saved me a lot of money. The job was done by the 2nd day which would have taken me weeks to do! Craig was very professional and continued to check in with me, throughout those 2 days to make sure they were doing exactly what I wanted. Thank u to Craig and his team! I look forward to calling him soon for the next projects!!"
Expedition Drive, Lolo MT
Beginning
Grantsdale Rd Demolition
Expedition Drive, Lolo MT
Beginning

+43

Response time10 mins
Recommended by100%of homeowners
Showing 1-10 of 29
Excavating FAQs, answered by experts

The digging depth will depend on the size of the trencher you use. Even smaller units can dig up to 4 feet deep, which is plenty for a DIY job. However, much larger trenchers can reach a depth of 18 feet and are better used by a team of pro contractors, not a single DIYer. As with all home improvement projects, use the right tool for the job and proceed with caution.

Prior to excavation, you should prepare the dig site and call 311 before you sign anything.

To get your site ready for excavation, you should move anything in the area that isn’t affixed to the land. You can save money on the excavation by removing hardscaping, including walkways, decks, concrete patios, and paver patios.

Before you carry out any digging, you should call 311 to confirm that there are no utility lines running through your excavation site. Skipping this step could lead to severe injury and property damage if your excavator hits a water, sewage, or gas line.

How deep your septic system needs to be into the ground depends on several factors. In extremely cold environments, the tank needs to rest below the maximum frost line, which can be up to six or eight feet deep. The standard burying depth for most systems is between a few inches and four feet below ground level. Depth can also depend on the slope of the landscaping and other property variables. 

Trenches are typically 12 to 24 inches deep and 8 inches wide. However, the required depth depends on the specific project and local ordinances. For example, a French drain may need to be 18 inches deep, while a water pipe might require a depth of 24 inches and a drainage pipe 36 inches. Your city or county may have specific regulations, so it's wise to consult with an excavation professional to determine the correct depth for your project.

Slab foundations are more affordable than crawl spaces because they require minimal excavation, as the slab sits directly on the ground or on footers that only sink a few feet into the ground. Crawl spaces require excavation of the entire footprint of the home to several feet below the surface. Not only does that mean higher labor costs, but more materials are necessary for the concrete foundation walls.

The Pinesdale, MT homeowners’ guide to excavation services

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