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Top-Rated Excavation pros in Friday Harbor - Updated Nov 2026

Avatar for JB Construction
JB Construction
4.0(
1
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Friday Harbor, WA and surrounding areas

In business since 2001

Emergency services offered

JB Const . is dedicated to serving our community and our professionalism is what you will need for your next project ..We are a small company that allows us to perform quality projects without to many employees and sub contractors ..Sub Contractors associated with JB Const are as dedicated as we are in serving our customers and will take every step possible to see your project is being done correctly and finished at a reasonable time...Our customers are always satisfied when we leave the job and we are always happy to make new friends !! Quality Craftsmenship Guaranteed !

Rasar state Park
Handicap Bathroom
Stamped Concrete
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Excavating FAQs, answered by experts

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.

Drilled wells have a pipe sticking up that’s covered in a plastic or metal casing. On the other hand, a dug well will look like a big hole in the ground and is more similar to what you’d see in a fantasy or Western movie. If you want to be sure, contact the city for documentation on your property’s construction and excavation history. 

A trench that is less than 5 feet deep often doesn't require a protective system. Most residential trenches will not go this deep (the typical residential drainage trench is just 18 inches deep). In the event that an excavator needs to dig more than 5 feet beneath the surface, a protective system is required unless the excavation is in entirely stable rock.

Yes, most services include site leveling and foundation work. Confirm with your contractor for specifics.

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.

The Friday Harbor, WA homeowners’ guide to excavation services

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