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Find Septic system installers and replacers in Olympia

Avatar for South Bay Septic & Excavation, LLC

South Bay Septic & Excavation, LLC

5.00(
3
)
•Approved Pro

South Bay Septic & Excavation, LLC

5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

I have been in the construction industry most of my life, been self-employed nearly 10 years. Trucking, excavation, foundation prep, underground utilities, land clearing. Road building, retaining walls, hard scaping, water management/infiltration. Very competitively priced, excellent customer service. Easy to work with. As an owner operator my goal is to create long term working relationships.

"These guys did an amazing amount of work in a short time, in crazy weather! I couldn't believe how clear the land was of all the trees and stumps after they were done. They did a fantastic job and I would definitely hire them again and highly recommend fhem"

Rhonda A on March 2024

I have been in the construction industry most of my life, been self-employed nearly 10 years. Trucking, excavation, foundation prep, underground utilities, land clearing. Road building, retaining walls, hard scaping, water management/infiltration. Very competitively priced, excellent customer service. Easy to work with. As an owner operator my goal is to create long term working relationships.

"These guys did an amazing amount of work in a short time, in crazy weather! I couldn't believe how clear the land was of all the trees and stumps after they were done. They did a fantastic job and I would definitely hire them again and highly recommend fhem"

Rhonda A on March 2024


Avatar for Dependable Excavation Plus

Dependable Excavation Plus

5.00(
8
)
•Approved Pro

Dependable Excavation Plus

5.00(
8
)
•Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

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

"Dependable Excavation Plus..is great... very prompt and professional with responding and got the project done quickly and professionally... very fair pricing and willing to go the extra mile to make sure you are satisfied 😀... I highly recommend Mr Sean.. Driveway drainage and regravel parking project."

Jamie F on November 2025

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

"Dependable Excavation Plus..is great... very prompt and professional with responding and got the project done quickly and professionally... very fair pricing and willing to go the extra mile to make sure you are satisfied 😀... I highly recommend Mr Sean.. Driveway drainage and regravel parking project."

Jamie F on November 2025


"there is a quick summary at the bottom if you want to skip the details. I have received service from this company twice. The first time I had a leak in a bathtub. They removed the drain with a Dremel since it was stuck, then they were about to leave to go to home depot to get plumber's putty, but I had some so they were able to get the part quickly replaced. Maybe this is a bit of a fluke, but that seems like a fairly basic thing to have when going to fix this kind of leak. Overall it was a positive interaction so I didn't think much of it. I recently bought a bidet on amazon. It arrived and I put it in. The problem was that I couldn't connect the toilet to the wall since the hose was a different size then the wall piece. The directions wanted me to remove the valve stem from the wall and replace it with their own. I called A Advanced because when it comes to plumbing, i would rather leave that to the professionals. I had called it a hose bibb because I just didn't know what it was called. someone called me back and asked me to explain in better detail what i needed done. I explained that the "hose bibb" needed to be replaced for me to connect my toilet and that I had the part to do it. from that conversation i received an estimate for $280.87. I was at work that day so couldn't be there, but my wife was there. The plumber that arrived worked for a while on the toilet, then went to home depot to find parts, then came back to the house and worked on it longer, then finally decided that it couldn't be done. We were charged $768.14 for nothing to get fixed. I called them to figure out what happened, I called near closing so they were not able to get a hold of anyone and it waited until the next week for me to talk to someone. I found out that the plumber never received the bag of parts, it was about 2 feet away in the sink. the same plumber came out and looked at it again, and went to home depot again. I was at work and managed to contact him while he was at home depot. I was told that the problem was with the thread depth and that there was no way to install this Chinese toilet without special ordering a part, and if I wanted him to keep working on it he was going to have to charge me more money. I declined. (Its not a Chinese toilet, the company that makes them is out of California.) At this point I was beyond frustrated. I left work early, drove home, went to home depot with the parts I needed to connect, and found a perfect fit within about 10 minutes of looking. I bought a Hex Bushing 3/4 in MIP x 1/2 in FIP for $7.75. I attached it to the included hose and then attached that to the valve stem. and everything worked. Home depot made it easy to find since both connectors were the same type. I just needed to find the appropriate brass adapter. the threads on the toilet hose are identical to the threads on a US water heater. I called A Advanced back and presented my evidence. I was asked what it would take to make this right. I asked for some of my money back. I can understand getting charged for the plumber going out to my house without a full understanding of what is going on. but at no point did he ever tell my wife that he was going way over the estimate. this is the exact response i got back. "I spoke with my COO and my foreman due to the amount of time we spent on the project we are unable to provide any sort of refund. I understand that is not something you want to hear but that is our decision." _____________________________________________ to summarize: - every time this company has come out to my house they have needed to go to Home Depot during the visit. - I was charged nearly 3 times the estimate with no work done and no warning that the bill was piling up. - the plumber was never able to install the toilet despite multiple trips to home depot - I installed the toilet with a $7 adapter i found at home depot in about 10 minutes. (I am not a plumber) - The company chose to not refund me anything If a plumbing company needs to go to home depot every time they do a house call, that is a company that is not prepared at best, and a scam company at worst."

Justin M on December 2024

Through unique technology, experience and compassion, we serve our customers while creating and maintaining a reputation of excellence. We service: Pierce County, King County, Thurston County, and Kitsap County.

"there is a quick summary at the bottom if you want to skip the details. I have received service from this company twice. The first time I had a leak in a bathtub. They removed the drain with a Dremel since it was stuck, then they were about to leave to go to home depot to get plumber's putty, but I had some so they were able to get the part quickly replaced. Maybe this is a bit of a fluke, but that seems like a fairly basic thing to have when going to fix this kind of leak. Overall it was a positive interaction so I didn't think much of it. I recently bought a bidet on amazon. It arrived and I put it in. The problem was that I couldn't connect the toilet to the wall since the hose was a different size then the wall piece. The directions wanted me to remove the valve stem from the wall and replace it with their own. I called A Advanced because when it comes to plumbing, i would rather leave that to the professionals. I had called it a hose bibb because I just didn't know what it was called. someone called me back and asked me to explain in better detail what i needed done. I explained that the "hose bibb" needed to be replaced for me to connect my toilet and that I had the part to do it. from that conversation i received an estimate for $280.87. I was at work that day so couldn't be there, but my wife was there. The plumber that arrived worked for a while on the toilet, then went to home depot to find parts, then came back to the house and worked on it longer, then finally decided that it couldn't be done. We were charged $768.14 for nothing to get fixed. I called them to figure out what happened, I called near closing so they were not able to get a hold of anyone and it waited until the next week for me to talk to someone. I found out that the plumber never received the bag of parts, it was about 2 feet away in the sink. the same plumber came out and looked at it again, and went to home depot again. I was at work and managed to contact him while he was at home depot. I was told that the problem was with the thread depth and that there was no way to install this Chinese toilet without special ordering a part, and if I wanted him to keep working on it he was going to have to charge me more money. I declined. (Its not a Chinese toilet, the company that makes them is out of California.) At this point I was beyond frustrated. I left work early, drove home, went to home depot with the parts I needed to connect, and found a perfect fit within about 10 minutes of looking. I bought a Hex Bushing 3/4 in MIP x 1/2 in FIP for $7.75. I attached it to the included hose and then attached that to the valve stem. and everything worked. Home depot made it easy to find since both connectors were the same type. I just needed to find the appropriate brass adapter. the threads on the toilet hose are identical to the threads on a US water heater. I called A Advanced back and presented my evidence. I was asked what it would take to make this right. I asked for some of my money back. I can understand getting charged for the plumber going out to my house without a full understanding of what is going on. but at no point did he ever tell my wife that he was going way over the estimate. this is the exact response i got back. "I spoke with my COO and my foreman due to the amount of time we spent on the project we are unable to provide any sort of refund. I understand that is not something you want to hear but that is our decision." _____________________________________________ to summarize: - every time this company has come out to my house they have needed to go to Home Depot during the visit. - I was charged nearly 3 times the estimate with no work done and no warning that the bill was piling up. - the plumber was never able to install the toilet despite multiple trips to home depot - I installed the toilet with a $7 adapter i found at home depot in about 10 minutes. (I am not a plumber) - The company chose to not refund me anything If a plumbing company needs to go to home depot every time they do a house call, that is a company that is not prepared at best, and a scam company at worst."

Justin M on December 2024


Avatar for Beacon Plumbing & Mechanical INC

Beacon Plumbing & Mechanical INC

5.00(
6
)
•Approved Pro

Beacon Plumbing & Mechanical INC

5.00(
6
)
•Approved Pro
Customers say: Quick response
29 local quotes requested
26 years of experience

Beacon Plumbing 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.

"The tech explained everything and was very polite."

Michelle B on April 2025

Beacon Plumbing 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.

"The tech explained everything and was very polite."

Michelle B on April 2025


MISSION STATEMENT: Guided by faith, we design, build, and maintain septic systems with excellence and integrity — treating every customer and teammate the way we would want to be treated.


Avatar for All Around Septic & Construction LLC

All Around Septic & Construction LLC

5.00(
7
)
•Approved Pro

All Around Septic & Construction LLC

5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

We specialize in septic tanks, system services, repairs, drain cleanings, inspections, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Wonderful! Brandon was fast knowledgeable and kind!"

Celia A on October 2024

We specialize in septic tanks, system services, repairs, drain cleanings, inspections, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Wonderful! Brandon was fast knowledgeable and kind!"

Celia A on October 2024


Evergreen Sanitation Inc

4.49(
97
)
•Approved Pro

Evergreen Sanitation Inc

4.49(
97
)
•Approved Pro
Customers say: Super punctual
25 local quotes requested
68 years of experience

Evergreen Sanitation does it all. We specialize in all aspects of onsite systems. We also provide grease trap pumping for restaurants (800) 433-1678. Renton Septic Inspections, AAA Septic Service, A Septic Pumper, Coastal Environment, East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service, Frontier Septic Service, Greenhaus Portable Restrooms, Issaquah Septic Service, J J Jackson Septic Service, Long Septic Service, Lyon Septic Service, Maple valley Septic Service, Sani-Mart Septic Service, Sky Valley Septic Service, Tandem Service Corporation Inc, Vans Septic Service. Additional phone numbers - (206) 362-6998, (206) 362-6998, (206) 622-7070, (253) 630-5262, (253) 852-0550, (360) 336-2009. Additional DBAs - Additionl DBAs - A A A Septic Service, A Septic Pumper, Coastal Environment East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service & Frontier Septic Service. See BBB for additional phone nubers and DBAs.

"Great. It was not an easy job but they went the extra mile to get it done. Thanks."

Rick W on May 2021

Evergreen Sanitation does it all. We specialize in all aspects of onsite systems. We also provide grease trap pumping for restaurants (800) 433-1678. Renton Septic Inspections, AAA Septic Service, A Septic Pumper, Coastal Environment, East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service, Frontier Septic Service, Greenhaus Portable Restrooms, Issaquah Septic Service, J J Jackson Septic Service, Long Septic Service, Lyon Septic Service, Maple valley Septic Service, Sani-Mart Septic Service, Sky Valley Septic Service, Tandem Service Corporation Inc, Vans Septic Service. Additional phone numbers - (206) 362-6998, (206) 362-6998, (206) 622-7070, (253) 630-5262, (253) 852-0550, (360) 336-2009. Additional DBAs - Additionl DBAs - A A A Septic Service, A Septic Pumper, Coastal Environment East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service & Frontier Septic Service. See BBB for additional phone nubers and DBAs.

"Great. It was not an easy job but they went the extra mile to get it done. Thanks."

Rick W on May 2021


Express Septic

5.00(
1
)

Express Septic

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Septic Problems? Help is on the way. We are a locally owned and operated full service septic company. bringing you 30 years experience to help with all you septic needs. some of the services we provide are. Commercial & Residential Septic Tank Pumping. Septic Tanks Holding Tanks Restaurant Grease Traps Alternative Septic Systems Service work including... Monitoring & Maintenance Contracts,Inspections for Home Sales & Permits.All paperwork filed online per county requirements Operation specialist on staff Electronic Tank Location Camera Inspections Pump Alarm Repairs Pump Replacement Float Adjustments Baffle Repairs Tank Repairs Riser & Inspection Ports Installed Drainline Cleaning Drain Field Jetting System Troubleshooting

Septic Problems? Help is on the way. We are a locally owned and operated full service septic company. bringing you 30 years experience to help with all you septic needs. some of the services we provide are. Commercial & Residential Septic Tank Pumping. Septic Tanks Holding Tanks Restaurant Grease Traps Alternative Septic Systems Service work including... Monitoring & Maintenance Contracts,Inspections for Home Sales & Permits.All paperwork filed online per county requirements Operation specialist on staff Electronic Tank Location Camera Inspections Pump Alarm Repairs Pump Replacement Float Adjustments Baffle Repairs Tank Repairs Riser & Inspection Ports Installed Drainline Cleaning Drain Field Jetting System Troubleshooting


Steve's Appliance & Refrigeration Service

4.88(
8
)

Steve's Appliance & Refrigeration Service

4.88(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

STUTH COMPANY INC

4.33(
6
)

STUTH COMPANY INC

4.33(
6
)
Customers say: Quick response
63 years of experience

Stuth Company has approximately 5 employees, all to which have years of on-site septic experience. We specialize in septic pumping, repairs, installations and inspections. We accept credit cards, checks, cash or money orders for payment. We offer FREE estimates!

"STUTH IS TRUSTWORTHY and HONEST. Stuth replaced pump, they had to come to my home twice to convince me the plummer I hired was WRONG when he said the sewer was the problem. Patient, genuine and honesty!! They actually have integrity!!"

terra s on November 2022

Stuth Company has approximately 5 employees, all to which have years of on-site septic experience. We specialize in septic pumping, repairs, installations and inspections. We accept credit cards, checks, cash or money orders for payment. We offer FREE estimates!

"STUTH IS TRUSTWORTHY and HONEST. Stuth replaced pump, they had to come to my home twice to convince me the plummer I hired was WRONG when he said the sewer was the problem. Patient, genuine and honesty!! They actually have integrity!!"

terra s on November 2022

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FAQs for septic system installation and replacement projects in Olympia, WA

The smallest standard septic system uses a 500-gallon tank, which costs between $875 and $1,150 installed. This size works well for single-occupant dwellings with minimal wastewater production. However, many local regulations specify minimum tank sizes, so check with your building department before committing to this compact option. Some jurisdictions require at least 750 gallons regardless of home size to ensure adequate waste processing capacity.

The installation timeline varies based on site conditions, permit processing, and contractor schedules. The process includes obtaining permits, conducting soil tests, excavation, tank placement, leach field construction, and final connections. Weather conditions, soil challenges, and inspection scheduling can all affect the overall timeline. It's wise to begin planning well in advance of when you need the system operational.

The most economical approach is to install a conventional anaerobic system with a plastic tank. To minimize costs while maintaining legality, obtain multiple quotes from licensed installers, consider scheduling during their slower seasons, and handle basic site preparation yourself. Never skip permits or required testing to save money—illegal installations can result in significant fines and mandatory removal, ultimately costing far more than doing it right initially.

Regular pumping helps prevent system failures and extends operational life. Most small systems require pumping every three to five years, though frequency depends on household size and usage patterns. Pumping services cost between $290 and $530, making this maintenance expense relatively minor compared to potential repair costs ranging from $500 to $2,600 for neglected systems. Establishing a regular maintenance schedule based on your installer's recommendations helps avoid costly emergency services.

The Olympia, WA 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.