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TRUSTED BY SEATTLE, WA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon142
    Verified excavation services reviews

Top-Rated Excavation pros in Seattle - Updated Nov 2026

Triton Excavation INC
4.6(
41
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Seattle, WA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"The whole crew was wonderful to work with, professional and meticulous, cheerful and helpful, site left in great shape at the end of the demolition of three buildings and the challenging foundation hole excavation. Job finished on time, good value. Highly recommended!"
Response time2 days
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mount Olive Landscape & Construction
Mount Olive Landscape & Construction
4.8(
42
)
Landscape - Minor Grading or Resloping

Serving Seattle, WA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"They stabilize a bank with a retaining wall including drainage and then re-landscaping and and planting the shrubs, the big thing was stabilizing. The Hillside with the retaining wall. They were very professional and efficient and came in on budget they left my yard clean and did No damage they we're very careful not to damage my ornamentals and Roberto I think he is the manager he make sure to supervise everything."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+60

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Mount Olive Landscape & Constr
Mount Olive Landscape & Constr
4.8(
62
)
Landscape - Minor Grading or Resloping

Serving Seattle, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"I needed to stabilize a slope. Norberto presented a plan for a retaining wall and drainage that was both functional and attractive. He provided a detailed bid for labor and materials that was competitive with several other companies He and his crew completed the job efficiently while taking care not to damage existing shrubbery and ornamentals. Norberto is professional and easy to work with. He was very good about coordinating with me. I have and will continue to use his company for other projects."
vinyl fence 3
Vinyl Fence Project
Vinyl Fence Project
Flagstone Patio
Flagstone Patio

+46

Response time8 hrs
Response rate98%
54 neighbors recently requested a quote
Avatar for Bear Creek Asphalt Paving, LLC
Bear Creek Asphalt Paving, LLC
4.8(
50
)
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Seattle, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Very quick response and turnaround time. Hired them to clear and grade about 3/4 of an acre on our property. They came to check out my land and gave me a quote next business day. Started the project the next week and finished same day. Professional and kind crew. I'd use them for future projects."
Parking lot
Parking lot
Parking lot
Parking lot
Before

+4

Response time12 hrs
Response rate99%
150 neighbors recently requested a quote
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 Seattle, WA and surrounding areas

Approved

In business since 1980

Free estimates

Offers commercial services

"Fast and easy. Gary was extremely responsive and timely. They responded first, got us scheduled asap, and finished the work in a blink. They were thorough and efficient and did an excellent job. I highly recommend their services for anyone needing demolition or excavation."
Wall project
Wall project
Retaining Wall
Parking lot
Parking lot

+52

Response time1 day
Response rate88%
4 neighbors recently requested a quote
Avatar for Whitworth Excavating, Inc.
Whitworth Excavating, Inc.
5.0(
3
)
Excavation - Major Grading or ReslopingBuilding Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business+1 more

Serving Seattle, WA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"All personnel involved were great at their job. From the estimate through the completion, everyone was professional and thorough. What began as removing a concrete drive to allow a plumber access to the sewer main line, became their completing the entire project. This occurred due to the depth of the line. They completed the job quickly, with minimal inconvenience. While they were here, I couldn't have asked for a better experience for a significantly difficult repair."
Kitsap Humane Society
Kitsap Humane Society
Net Systems
Net Systems
Carriage Homes

+19

Response time2 days
1 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for P4 Construction, LLC
P4 Construction, LLC
5.0(
13
)
Landscape - Minor Grading or Resloping

Serving Seattle, WA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Great construction company to work with They’re professional, reliable, and do quality work I would definitely recommend them to anyone looking for a good construction company!"
Response time5 hrs
Response rate94%
Recommended by18%of homeowners
Avatar for McCarty Excavating & Services LLC
McCarty Excavating & Services LLC
5.0(
5
)
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Seattle, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I have used McCarty Excavating on a few occasions. Most have been for either clearing areas and building out a site pad for sheds, containers, RV pad, or breaking down an old gravel lot to redo it so it was smooth and usable. Michael has been excellent to work with. He has been on time, friendly and professional. His work has been top tier as well. He was fair on his quotes, communicated very well about problems that arose and made sure I was happy with the end product. McCarty Exc will always be my first call!"
Logo
Dumpsters
Junk removal service
Junk removal service
Junk removal service

+9

76 neighbors recently requested a quote
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Excavating FAQs, answered by experts

The average cost for pool excavation is $2,500. This cost can range from $450 to $4,500, depending on the pool shape and size, time of year, and any need to move buried utilities. 

When excavating for your pool, you might have to move existing utilities. You can expect to pay an additional $15 to $25 per linear foot to move gas lines. To move a septic system, it’ll cost an additional $2,000 to $20,000. A pool that is 10 feet by 12 feet averages $450 to excavate, and a 20-foot-by-40-foot pool averages $3,020.

The best way to protect tree roots is to avoid the roots entirely by excavating outside the root radius of the tree. For nearby projects, it’s a good idea to construct a temporary retaining wall. But that’s not always possible, depending on the project and the root system. In these cases, consider using alternative equipment like an auger to tunnel under the ground.

Remember, tree roots can damage nearby cement foundations as they grow. If a tree is close enough to interfere with large excavations, it may be better to remove the tree than risk future problems.

There is no standard depth for burying a septic tank; they are typically buried anywhere from 4 inches to 4 feet underground. The final depth depends on several factors, including the depth of your main sewer line, the height of the bedrock, soil type, local regulations, and the property's landscape. If you plan to grow grass or plants over the tank, a depth of at least 4 to 6 inches is recommended. Deeper tanks can be more difficult to locate, but a septic professional can help find it for you.

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.

There are many ways to cut through roots when digging, especially if your trencher doesn’t seem to be removing the roots. First, use a shovel to expose the roots. Then, use gardening shears to clear out smaller roots or a reciprocating saw to remove larger plant roots. If you plan on keeping the plant, avoid cutting any roots over 2 inches thick.

The Seattle, WA homeowners’ guide to excavation services

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