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TRUSTED BY DES MOINES, WA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon69
    Verified excavation services reviews

Top-Rated Excavation pros in Des Moines - Updated Nov 2026

Avatar for Gaston Bros. Excavating, Inc.
Gaston Bros. Excavating, Inc.
4.4(
20
)
Excavation - Major Grading or ReslopingBuilding Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business+1 more

Serving Des Moines, WA and surrounding areas

Approved

In business since 1980

Free estimates

Offers commercial services

"Gary and his crew worked very quickly and efficiently on a challenging demolition job that required a great deal of precision. They also did a drain field for my septic system and both projects were completed in 2 days. His crew were hard working, polite and left the job site swept, picked up and very clean. Gary is a pro! No contractor drama. He showed up on time and got right to work. I highly recommend Gaston Brothers Excavating."
Wall project
Wall project
Retaining Wall
Parking lot
Parking lot

+52

Response time1 day
Response rate88%
4 neighbors recently requested a quote
Avatar for P4 Construction, LLC
P4 Construction, LLC
5.0(
13
)
Landscape - Minor Grading or Resloping

Serving Des Moines, WA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"I hired Eric with P4 construction to install a curtain drain in front of my house. He did a great job. He and his guys showed up on time, everything went as planned, and it was finished in the time he said it would be finished. I had A LOT of bids for this project because I needed it to be done right... I live on a hill and had a water problem that needed a real solution, and my neighbor recently had a drain put in that immediately clogged and doesn't work. Eric's plan made the most sense and was in alignment with my research on what I needed. Some of the other contractors wanted to put in a 2' deep drain, but my water problem went deeper (there's a 5' crawlspace under my porch where water was pouring into). He correctly moved the water out to the side of the house, (combined my gutter into it), and all the way down the hill emptying into a flatter area and into a gravel pit."
Response time5 hrs
Response rate94%
Recommended by18%of homeowners
Avatar for Seattle Rockeries
Seattle Rockeries
4.8(
62
)
Excavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Des Moines, WA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Scope of project was removal of existing concrete pavers and hemlock stump, then installing 7-9 rockery flat steps made of natural basalt rockery rocks. We were thoroughly happy with the work from Seattle Rockeries. Harry and his crew were very knowledgeable, fast and friendly. Sharing pics of before and after."
206-960-9003
Glory
after
after
after

+138

Response time10 hrs
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for JIREH ASPHALT AND CONCRETE, INC.
JIREH ASPHALT AND CONCRETE, INC.
4.5(
23
)
Landscape - Minor Grading or Resloping

Serving Des Moines, WA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They did an excellent job. They were on-time, fast and high quality work. Challenging job site with several large trees and massive roots. They moved a huge amount of dirt and did a precise leveling with proper drainage. They prepared the project in one day and poured the next! The stamping process was very interesting and a work of art. Several neighbors have talked to me about having them do work for them. Still getting complements!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+80

8 neighbors recently requested a quote
Recommended by65%of homeowners
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Excavating FAQs, answered by experts

In the United States, a depth of 36 inches (three feet) for underground water lines is the accepted industry standard. This depth varies from location to location based on local conditions. In areas with colder winters, they may be buried deeper to prevent frozen well water pipes : This is usually at least six inches below the frost level. The International Plumbing Code calls for a minimum of 12 inches below grade.

To drill a shallow well, you may be able to use a drive well point. This is a tapered point that is driven into the ground. A drill bit at the end of PVC pipe may be another option to consider. A lot of the cost depends on what tools are available near you.

To determine whether your homeowners' insurance will cover crawl space repair, consider the cause of the issue. Repair may be covered if the problems were caused by an event that the insurance covers, such as vandalism or a windstorm. However, companies won't cover the repair if the issues are caused by neglect or wear and tear.

If you have a broken sprinkler pipe underground, there will be some signs you can easily spot to locate it and take action. These include leaks, water spouts, flooding, consistently damp areas on your lawn, low water pressure, and grass around the sprinkler head that’s taller and darker than anywhere else in the yard. 

If there are no obvious signs of a broken pipe, you can use tools such as water leak mics, leak noise loggers, audio devices that record leaks, and acoustic testing links. 

Broken pipes can lead to uneven watering, plant damage, and higher utility bills. The longer you wait to fix them the more the repair cost may be.

Because decomposed granite is a durable material, a crushed rock or gravel base is optional as long as the DG is properly installed and compacted. However, installing a base is a good idea because it will ensure proper drainage and stability and act as a weed suppressant (although you may still occasionally have to pull weeds). Installing an adequate base can also increase the durability of driveways and walkways. If you forego the paver base or gravel underneath, line the area with landscaping fabric to avoid weeds.

The Des Moines, WA homeowners’ guide to excavation services

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