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Avatar for Variant Excavation
Variant Excavation
5.0(
8
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Concrete, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Variant was fantastic through the entire project. From the first phone call during bids through the completion, you knew you were working with a real professional. Adam was communicative, insightful, and thorough. Through each phase we have had Adam out, his work has been well done and beautifully finished. His dedication to his customers goals is felt. I would happily recommend him to friends and family."
Hardscape/landscape project
Hardscape/landscape project
Hardscape/landscape project
Hardscape/landscape project
Hardscape/landscape project

+32

Response time3 hrs
Response rate100%
Recommended by12%of homeowners
Avatar for Dillon Excavation
Dillon Excavation
5.0(
5
)
Building Site - Preparation and ClearingLandscape - Minor Grading or ReslopingExcavation - Major Grading or Resloping+2 more

Serving Concrete, WA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Dillon Excavation just completed a grading and drain system project for me on my horse property, and his work was exemplary. He was conscientious, punctual, thorough, and knowledgeable. The final cost was exactly what he quoted, and he was a pleasure to work with. Dillon’s integrity is top notch, and I’d absolutely hire him again and again."
Driveway
Dirt work
Dirt work
Dirt work
Sale prep

+2

Response time4 hrs
Response rate100%
21 neighbors recently requested a quote
Avatar for New Image Excavation & Tree Service
New Image Excavation & Tree Service
5.0(
2
)
Building Site - Preparation and ClearingLandscape - Minor Grading or ReslopingBuilding Site - Preparation and Clearing - For Business+2 more

Serving Concrete, WA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Matt was very professional, efficient with his time, competitively priced, and amicable. He avoided many things that we discovered in the ground, even after private utility location. I would absolutely hire him again for future projects and would refer him to anyone needing an excavation operator with refined skills. Thanks, Matt! Five Stars!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time11 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for new image excavation and tree service LLC
new image excavation and tree service LLC
5.0(
2
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Concrete, WA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Matt and his company did through and quality work. We couldn't have been happier with the end result. He went above and beyond to ensure we were happy with the work that was done. We had several bids and he was 1/3 of the cost the others were. But more importantly he stood behind the work he did and was a man of his word which is so hard to find. If you're struggling to find someone who is reliable and does quality work look no further. You won't be dissappointed"
Response time2 days
Recommended by50%of homeowners
Seven Spades Excavating Inc
New to Angi
Excavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Concrete, WA and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

Seven Spades Excavating is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

Response time10 mins
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Excavating questions, answered by experts

You should dig 3 to 6 inches deep for plastic edging. Dig as wide as you need to fit your plastic edging into it—2 inches is usually sufficient.

A walk-behind trencher can cut through roots as long as they’re not too thick, making a project much easier than digging with a shovel and other hand tools. Assess your terrain and the number of trees in the surrounding area to determine if a walk-behind trencher will ease the job. Digging a trench by hand is much more time-consuming and labor-intensive. 

Sewer lines can be buried anywhere from 18 inches to 8 feet deep, with a common average depth between 18 and 30 inches. The exact depth depends on local factors like climate and soil type. In colder regions, pipes must be buried deeper (below the frost line) to prevent freezing, sometimes as deep as 8 feet. The digging depth can also impact the cost of sewer line replacement. To find the specific depth for your property, you can check the building plans for your system, which should be on file with your city or local sanitation department since permits are required for installation.

The best method for digging a trench depends on the scope of the project. For a short, shallow trench (less than 2 feet deep) in light, soft soil, digging by hand may be sufficient. However, digging by hand is labor-intensive, so consider the effort required. A machine trencher is the better option for longer trenches (over 100 feet), deeper ones, or when dealing with difficult soil conditions, such as rocky or hard ground, or obstructions like tree roots. A machine can save significant time and energy in these situations.

Septic drain lines (or leach lines) are typically buried between 18 and 36 inches underground, and should be at least 6 inches below the surface. These pipes are perforated and surrounded by filtering materials like sand or gravel. Burying the lines at this depth helps minimize odors and allows bacteria and other biological processes in the soil to effectively treat the wastewater. Burying lines too close to the surface can cause issues unless the soil is very compact and stable.

The Concrete, WA homeowners’ guide to excavation services

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