Top-rated septic system installers and replacers.

Get matched with top septic system installers and replacers in Portland, OR

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 installers and replacers in Portland

Avatar for A AFFORDABLE SEPTIC SERVICE LLC
A AFFORDABLE SEPTIC SERVICE LLC
4.6(
108
)

Serving Portland, OR and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"I put in a request for septic tank pumping and the first contact (from other company) was crazy high. A Affordable Septic gave a quote that was extremely reasonable and they surely live up to the name. Marty came out this morning; on time or even a bit early. He was extremely kind and helpful. I would definitely recommend this company for anyone needing septic service. I pray God's Blessings on this company and its employees. John 3:16"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for SPEEDY SEPTIC
SPEEDY SEPTIC
4.4(
91
)

Serving Portland, OR and surrounding areas

Approved

In business since 1983

Emergency services offered

Warranties offered

"When the crew understood how concerned I was about the entire condition of the septic system, they took the time to explain to me every detail of what needed to be done, what they were doing at the time, and how the system would work with the pump when the project was completed. Every crew member was professional, courteous and skilled at what looked to me to be a complicated (and icky) job. I received multiple phone calls to ensure I knew when they were coming and what was to be done. There were no surprises for me, and I can flush with confidence thanks to them knowing that my brand new tank and pump are installed 100% correctly. (It easily passed county inspection.) This was an excellent experience, and I would hire them again in a heartbeat !"
Additional Photos
Additional Photos
Additional Photos
3 neighbors recently requested a quote
Recommended by88%of homeowners
Quality Septic and Excavation, LLC
5.0(
6
)

Serving Portland, OR and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Our existing septic tank was only a few years old, but the associated drainfield was failing and required replacement. Due to a small lot, our options were limited; but rather than a huge and unsightly bottomless sand filter, we opted for a less obtrusive (but expensive) treatment unit and pumps along with the needed replaced drainfield. Cory was very helpful in explaining complex options and costs."
Response time6 hrs
15 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for WB Excavation
WB Excavation
4.9(
17
)

Serving Portland, OR and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"During the project the team came up against a few obstacles but easily offered some suggestions and made changes no problem or additional cost"
Gallery
1 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Andrew Excavation & Septic, LLC
Andrew Excavation & Septic, LLC
5.0(
2
)

Serving Portland, OR and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

We are committed to understanding your unique needs and creating a plan to deliver a quality finished project. We pride ourselves on exceptional communication to provide understanding of all variables. In the PNW, drainage is the name of the game. We take on a variety of projects from preparing the site to build, to horse arena drainage systems, to septic system install. We are seasoned in working with utilities for power, water septic and to deliver to the site. As well as road building. Feel free to call with questions or concerns to ensure a good fit for all. 503830848\n

Septic Repair
Septic Repair
ATT Septic System Install
ATT Septic System Install
ATT Septic System Install

+10

Response time1 day
Response rate94%
1 neighbors recently requested a quote
Avatar for American Legacy Homes & Construction, LLC
American Legacy Homes & Construction, LLC
2.9(
4
)

Serving Portland, OR and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs.\nIt is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project.\nIn order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer \nin a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

Project Photos
3 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Ralston Excavating, Inc.
Ralston Excavating, Inc.
5.0(
14
)

Serving Portland, OR and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"The men at Ralston Excavating Inc. Wasted no time finding the cause of my overflowing septic tank (a crushed drain line) and replacing the line with new pipe. The service they provided was swift, professional and cost effective. I am very pleased with their work and highly recommend them to anyone needing help repairing or replacing a septic system."
Response time2 days
Recommended by100%of homeowners
Avatar for Grumpy's Drains
Grumpy's Drains
4.8(
582
)

Serving Portland, OR and surrounding areas

Free estimates

Credit card accepted

"I had a clogged drain line near the street that a rooter guy couldn't break through. I thought I was looking at having to replace the entire line. At the risk of throwing good money after bad, I called Grumpy's. I got great advice over the phone including a number to call if I decided to have the line dug up. The rate I was quoted was reasonable. Grumpy came out and cleared the line in less than half an hour. In addition, he put a scope down the line, found the exact location where roots were getting through, and marked the spot with paint at no extra charge. He wrote down the coupling and pipe I would need to make the repair. When I dug, the break was right where he indicated. Grumpy was a real pro. He saved me a bunch of time and money."
Additional Photos
Additional Photos
Recommended by94%of homeowners
Avatar for M P Plumbing Co
M P Plumbing Co
4.5(
263
)

Serving Portland, OR and surrounding areas

In business since 1942

Emergency services offered

Credit card accepted

"Great. He found the metal blocking the disposal and saved me having to install new one. Tightened my faucet in about half a minute. Replaced line and shut off valve to my dishwasher, increasing my water pressure. Showed me how to take toilet fill valve apart to clean out rust so I did not have to call them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+31

Recommended by93%of homeowners
Showing 1-10 of 42
FAQs for septic system installation and replacement projects in Portland, OR

Most septic system replacements require several days to complete, not including permitting and preparation time. The process begins with site assessment and testing, followed by excavation, component installation, and final inspection. Weather conditions, property accessibility, and inspection schedules can all affect your project timeline. Your contractor can provide a more specific estimate based on your property's unique characteristics.

Standard homeowners' insurance policies don't cover septic system replacement due to age or normal deterioration. Coverage may apply if damage results from specific covered events, but routine maintenance and eventual replacement are generally considered homeowner responsibilities. Review your policy details or speak with your insurance agent to understand your specific coverage limitations.

Look for multiple indicators such as slow-draining fixtures, unusual gurgling sounds in plumbing, sewage odors inside or outside your home, or wet spots in your yard. Unusually lush grass over the drain field area, frequent backups, or recurring repair needs might signal system failure. Addressing these warning signs promptly can prevent property damage and health hazards.

DIY septic installation is not recommended and may violate local regulations. Professional installation ensures compliance with health codes, proper design for your specific site conditions, and appropriate safety measures. The specialized equipment, technical knowledge, and permitting requirements make this a job best left to licensed professionals who can guarantee the system's safety and effectiveness.

With proper maintenance, including regular pumping, a drain field lasts 20 years. Various factors influence system longevity, including household size, water usage patterns, and soil conditions. Regular professional inspections can help determine when replacement becomes necessary. If your system requires increasingly frequent repairs, replacement might be more economical than continuing to address individual problems.

The Portland, OR homeowners’ guide to septic system installations and replacements

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