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Find Excavation pros in Lake Oswego

Avatar for KT Landworks, LLC
KT Landworks, LLC
4.9(
18
)

Serving Lake Oswego, OR and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Outstanding work, respectful and professional crew, easy to work with, very fair pricing. They did a lot of excavating and spreading of dirt & gravel, built a beautiful rock wall along with site prep for a shop spot. We would hire them again, we highly recommended this company,"
Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for North Woods Tree Service
North Woods Tree Service
4.9(
127
)

Serving Lake Oswego, OR and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"Excellent service. The pruning of the 2nd oak tree and the Hawthorne tree was done one day, and all other work done the next day. The 4-person crew was very professional, kind, and respectful of the property. The large oak I had removed was right up against a new fence, and not far from the side of my house. And, it was not in an area to get a bucket truck nearby. They arrived right on time at the start of the day and worked hard with minimal breaks - very impressive. They ground the stump from the large oak as well as grinding a couple of leftover stumps from previously removed holly trees. Their cleanup was superb! They even blew stuff off the top of my roof! And the wood cut down was nicely rolled together - not just dumped into a large messy clump! And, they were cheaper than another bid I got from a company here on Angie. I cannot recommend them high enough."
50 Feet From Tip To Top
Almost To The Top
Another View Of The Trunk
Arrival Of Crane
Base Log Was Sectioned

+104

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for A-Kat Construction, LLC
A-Kat Construction, LLC
4.9(
13
)

Serving Lake Oswego, OR and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"I highly recommend working with Akaty. I hired this company to perform excavation a low retaining wall and fire pit. They showed up on time listened to what I wanted they were the lowest bidder and the highest quality. Just what I wanted.. Give him a call !!!"
Lees fire pit
lees fire pjt
lees fire lit
Neds fire pit
neds fire pit

+13

Response time1 day
Recommended by91%of homeowners
Avatar for Job One Excavation, LLC
Job One Excavation, LLC
5.0(
5
)

Serving Lake Oswego, OR and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"We were so pleased with the results of the briar patch mowing that was so needed on our property. Travis has also offered his expertise on the next steps to continue to beautify our property."
Diggin out the old 1
Diggin out the old 2
Job finished
Soil down - WIP
Raking in progress

+37

5 neighbors recently requested a quote
Avatar for Gritstone Excavation LLC
Gritstone Excavation LLC
5.0(
3
)

Serving Lake Oswego, OR and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

Family-owned excavation company with over 30 years of experience delivering reliable, high-quality work. We specialize in utility excavation including trenching, water and sewer lines, and site preparation, while also offering a full range of excavation services. Known for honest communication, efficient project completion, and doing the job right the first time. Fully committed to customer satisfaction and dependable results.

JACOB JOHNSTON
JACOB JOHNSTON
Avatar for Holmes Concrete & Excavation LLC
Holmes Concrete & Excavation LLC
5.0(
7
)

Serving Lake Oswego, OR and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"We highly recommend James for anyone looking to refinish their concrete floor in their home, office or any space. The work turned out better than expected, and we appreciated his timeliness."
BLACK ITALIAN SLATE
BLACK ITALIAN SLATE
BROOMED PATIO
OVERALL VIEW
FRONT WALKWAY

+2

1 neighbors recently requested a quote
Avatar for JA Holland Construction, LLC
JA Holland Construction, LLC
4.8(
20
)

Serving Lake Oswego, OR and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"It's a great experience when a contractor follows through as they commit. Thomas and his crew are professionals and a pleasure to work with. His quote was lower than the others and he did everything as expected. We would hire him again."
Se. Salem driveway
Block retaining wall
Block retaining wall
Block retaining wall drivway
Response time3 hrs
Response rate97%
Recommended by72%of homeowners
Avatar for GradeX Construction
GradeX Construction
4.8(
12
)

Serving Lake Oswego, OR and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Very professional and experienced company. We have a steep sloping backyard that they were able to regrade and step. Great experience and definitely recommended."
Response time3 days
10 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 144

FAQs for excavation projects in Lake Oswego, OR

Depth depends on the type of installation and the regulations in your area. Water supply lines typically require 24 inches, while drainage pipes are often installed 36 inches below grade. For most general projects, a depth of 12 to 24 inches and a width of about eight inches is sufficient. Sticking to these specs keeps your utilities safe, code-compliant, and easier to maintain later.

When you need to run utilities underground, you’ve got two main options: boring or trenching. Boring employs directional drilling to install utilities without exposing a continuous channel, while trenching requires excavating an open channel to place utilities securely. Directional drilling preserves landscape integrity, whereas trenching provides direct access for installation, albeit with greater surface disruption. This clear comparison helps you select the method best suited to your project.

Plan on 12 hours to dig 100 linear feet when the soil is cooperative and you can work continuously. This timeframe applies when work is performed consistently and methodically. Factors such as rocky soil, tree roots, obstructions, and frozen ground increase the overall duration, demanding extra planning and effort. Comprehensive operational planning ensures that every challenge is managed efficiently and the project is completed on schedule.

If you want your yard to look untouched, laying fresh sod over the trench is the quickest fix. New sod needs 30 to 45 days to root and blend with the rest of your lawn. A local sod pro can provide you with a firm timeline and tips to ensure the grass takes hold and maintains your curb appeal.

The Lake Oswego, OR homeowners’ guide to excavation services

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