Top-rated septic system repair pros.

Get matched with top septic system repair pros in Seattle, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Septic system repair pros in Seattle

Avatar for Septic Solutions
Septic Solutions
4.9(
18
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"My Septic pump had failed. I had already reached out to another septic repair company, but after 24 hours they still could not give me a day they would be available. I called Pavel at Earthworks Solutions and within 3 hours he had Dennis out there to replace my pump. He installed 3 risers and a new drainage pump all in the same day. Dennis did fast good work and I would recommend Earthworks Solutions."
Sometimes Septic System filters can look awful, wich can negatively affect the system's performance. Timely cleaning of your Septic filter helps prevent unplesant issues with your system.
A properly installed and fully functioning Septic System Alarm notifies homeowners of any issues with their Septic System
Installation of a single-compartment Septic Tank for our customer in Stanwood WA
Additional Photos
Additional Photos

+13

1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Alpha Bravo Septic and Drainage, Inc.
Alpha Bravo Septic and Drainage, Inc.
4.8(
44
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Alpha Bravo was great! Septic alarm went off and they came right away, figured out the issue quick and had repairs done within the week. Also gave tips on septic maintenance which was helpful. Would recommend, very knowledgeable and helpful!"
Response time6 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for A Advanced Septic
A Advanced Septic
4.3(
122
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Jacob Porter, tech from A-Advanced Septic did a fine job. Over & beyond. He gave us a lot of information on our septic system. Like, what we needed to upgrade & other procedures for our septic to drain smoother. I highly recommend him & A-Advance Septic. Thanks so much Jacob."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
10 neighbors recently requested a quote
Recommended by84%of homeowners
Ron Hemley Septic Installations, Inc.
5.0(
2
)

Serving Seattle, WA and surrounding areas

Approved

In business since 1980

Free estimates

Offers commercial services

"If you do not make your first call to Hemley's, your making a big mistake. This company stand above the rest for their professionalism, work & business ethic's and their customer service at a fair price. This company should be the first one you call, they will assess and find the best solution which many other contractors wont do. If the scale went to 10, I would give them an 11."
Response time6 days
Recommended by100%of homeowners
Avatar for JT Industrial, LLC
JT Industrial, LLC
4.8(
4
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

JT Industrial LLC is owned by Josh and Kristen Rodrigues. Josh has 17 years of experience in the excavation and trucking industry with a foundation working for his Grandfather at Zimmer Construction. He later moved on to managing an excavation team for Chinook Contractors before setting out on his own with JT Industrial LLC. Kristen has a background in business management and customer service. From managing a team for REI to working as a flight attendant for Alaska Airlines, her understanding of customer needs is expansive. Kristen, Josh and their team are dedicated to excellent workmanship, integrity in all business dealings and delivering competitive pricing for the quality of work. As an excavating contractor, we’re passionate about the work we do and love seeing new and interesting projects cross our desk. Our talented team and foundational knowledge make us your first choice for any of your excavation and trucking needs. Give us a call and let us know how we can help!

Development site
Grading
Manhole excavation
Manhole installation
Manhole excavation

+24

Response time1 day
2 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for MRJ Excavating and Engineering LLC
MRJ Excavating and Engineering LLC
5.0(
1
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

Clearing and removal of brush, excavation, grading, underground utilities, storm drainage, ditches, driveway gravel, site preparation for residential home, garage or shop. Emergency work, storm clean up, demolition

Foundation Excavation
Drainage and grading project
Foundation Excavation
Drainage and grading project
Foundation Excavation

+32

6 neighbors recently requested a quote
Recommended by100%of homeowners
Freedom Excavation
New to Angi

Serving Seattle, WA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

Freedom Excavation is committed to excellence every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty, and professional responsibility. Our distinction is the quality of service we bring to our customers as well as our ability to give you a quick, fair, and accurate estimate. Accurate knowledge of our trade, combined with ability is what makes is true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time10 hrs
11 neighbors recently requested a quote
Showing 1-10 of 43
FAQs for septic system repair projects in Seattle, WA

Leach field failure can often occur due to a lack of proper maintenance, hydraulic overload, or environmental factors. When too much water enters the septic system—like running multiple large laundry loads back-to-back—it can overwhelm the leach field. Regular professional inspections, ongoing maintenance, and spacing out high-water-use activities help prevent failure.

A septic tank shows repair needs when noticeable symptoms arise around your home. Noticeable signs include strong sewage odors at fixtures, recurring pipe blockages, pooling water or damp patches near the leach field, and areas of unusually bright green or spongy grass. These indicators confirm that deteriorating components or clogs exist. Monitoring such signs and scheduling timely professional inspections prevents further costly damage.

Adhering to a strict, scheduled maintenance plan prevents septic system repairs. An annual inspection and a pump-out every three to five years safeguard your system’s performance. Additionally, only flushing waste and toilet paper, installing drain filters, keeping nonapproved items out of the system, and avoiding excessive water use help maintain your septic system’s health and efficiency.