Top-rated septic tank pros.

Get matched with top septic tank pros in Lake Oswego, OR

There are 8 highly-rated local septic tank pros.

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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon131
    Verified septic tank services reviews

Find Septic tank pros in Lake Oswego

Avatar for Roth Home

Roth Home

4.63(
212
)
Approved Pro

Roth Home

4.63(
212
)
Approved Pro
Super Service Award
Customers say: Super punctual
49 years of experience
Emergency services offered

Since 1976, Roth Home has been committed to one thing: providing the very best heating, cooling, plumbing, electrical, and drain services in the greater Portland area, coupled with truly outstanding customer care. Throughout the decades, we’ve been helping residential and commercial customers throughout the region achieve the comfort and safety they need. The Roth team goes above and beyond for every customer, offering custom solutions and fast, honest repairs when you need them most. We’re even available for 24/7 emergency services! As a full-service heating, cooling, plumbing, and electrical company in Portland and serving the entire region, Roth Home has what it takes to tackle any home service problem. From new water heater installation to furnace repairs to AC replacement, drain cleaning, whole home repiping, electrical panel upgrades, new lighting installation, and more, we can help ensure that your home or business is in tip-top shape. With Roth, one call does it all! Find out more about our comprehensive range of services, or request your appointment today when you call our friendly and professional team!

"Justin was amazing! Came out quick to give me an estimate. Was able to come on the weekend to do the project. On time, courteous, and even remembered to not ring the doorbell so my dog wouldn’t go crazy! Very efficient with time and wire booties in the house. Loved the work and the professionalism. Would definitely hire him again! "

Marcia K on December 2025

Since 1976, Roth Home has been committed to one thing: providing the very best heating, cooling, plumbing, electrical, and drain services in the greater Portland area, coupled with truly outstanding customer care. Throughout the decades, we’ve been helping residential and commercial customers throughout the region achieve the comfort and safety they need. The Roth team goes above and beyond for every customer, offering custom solutions and fast, honest repairs when you need them most. We’re even available for 24/7 emergency services! As a full-service heating, cooling, plumbing, and electrical company in Portland and serving the entire region, Roth Home has what it takes to tackle any home service problem. From new water heater installation to furnace repairs to AC replacement, drain cleaning, whole home repiping, electrical panel upgrades, new lighting installation, and more, we can help ensure that your home or business is in tip-top shape. With Roth, one call does it all! Find out more about our comprehensive range of services, or request your appointment today when you call our friendly and professional team!

"Justin was amazing! Came out quick to give me an estimate. Was able to come on the weekend to do the project. On time, courteous, and even remembered to not ring the doorbell so my dog wouldn’t go crazy! Very efficient with time and wire booties in the house. Loved the work and the professionalism. Would definitely hire him again! "

Marcia K on December 2025


D & A Pump & Supply, Inc.

4.79(
12
)
Approved Pro

D & A Pump & Supply, Inc.

4.79(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
54 years of experience

We at D & A Pump & Supply, Inc., have been serving Clackamas, Multnomah & Washington Counties since 1971. We provide excellent customer service and quality equipment. We can handle any emergency service calls and we specialize in well pump service and installation, water treatment, reservoir systems, constant pressure systems. We also perform water tests for potability, nitrate, arsenic, lead and free water analysis for iron, hardness and PH. We would love to work with you on any of your well pump or water purification needs.

"Great people, great service, on time and good comunication i will hire them all the time"

Oguer L on July 2022

We at D & A Pump & Supply, Inc., have been serving Clackamas, Multnomah & Washington Counties since 1971. We provide excellent customer service and quality equipment. We can handle any emergency service calls and we specialize in well pump service and installation, water treatment, reservoir systems, constant pressure systems. We also perform water tests for potability, nitrate, arsenic, lead and free water analysis for iron, hardness and PH. We would love to work with you on any of your well pump or water purification needs.

"Great people, great service, on time and good comunication i will hire them all the time"

Oguer L on July 2022


Avatar for Goodman Sanitation Inc

Goodman Sanitation Inc

4.75(
2
)
Approved Pro

Goodman Sanitation Inc

4.75(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

Goodman Sanitation dba Goodman Septic Services 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 interest and make their concerns the basis of our business.

"We've been using them for over 30 years."

Jack W on May 2023

Goodman Sanitation dba Goodman Septic Services 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 interest and make their concerns the basis of our business.

"We've been using them for over 30 years."

Jack W on May 2023


Avatar for SPEEDY SEPTIC

SPEEDY SEPTIC

4.55(
84
)
Approved Pro

SPEEDY SEPTIC

4.55(
84
)
Approved Pro
Customers say: Quick response
72 local quotes requested
42 years of experience

Our goal at Speedy Septic is to show up when you need us, address the issue at hand, but most importantly, leave you with confidence that your septic system will work properly moving forward. How do we do this? We at Speedy view education and improvement as a religion, invest in and utilize the latest tools and technology, and keep our state of the art vacuum trucks stocked with every part that could potentially be needed. 41 years and 4 generations of experience and thousands of reviews averaging 4.8 stars is the resume you want looking after your sewer system. We have live people ready to answer your call, a truck stocked and warmed up with a smiling Technician ready to roll. Give us a call now!

"WAAAAAY OVERPRICED!!! And false diagnosis that could have cost me WAY MORE!!!"

Sarah W on March 2021

Our goal at Speedy Septic is to show up when you need us, address the issue at hand, but most importantly, leave you with confidence that your septic system will work properly moving forward. How do we do this? We at Speedy view education and improvement as a religion, invest in and utilize the latest tools and technology, and keep our state of the art vacuum trucks stocked with every part that could potentially be needed. 41 years and 4 generations of experience and thousands of reviews averaging 4.8 stars is the resume you want looking after your sewer system. We have live people ready to answer your call, a truck stocked and warmed up with a smiling Technician ready to roll. Give us a call now!

"WAAAAAY OVERPRICED!!! And false diagnosis that could have cost me WAY MORE!!!"

Sarah W on March 2021


Avatar for Timco Excavation and Construction, LLC.

Timco Excavation and Construction, LLC.

5.00(
4
)
Approved Pro

Timco Excavation and Construction, LLC.

5.00(
4
)
Approved Pro
Super Service Award
13 local quotes requested
2 years of experience

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.

"His prices were excellent, he came out to do the job quickly. He worked with me on plans to replace my septic tank and was knowledgeable and honest about prices and timelines."

Athena S on September 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.

"His prices were excellent, he came out to do the job quickly. He worked with me on plans to replace my septic tank and was knowledgeable and honest about prices and timelines."

Athena S on September 2025


Avatar for Shiloh Water Systems

Shiloh Water Systems

4.78(
27
)
Approved Pro

Shiloh Water Systems

4.78(
27
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

Shiloh Water Systems is a family business specializing in residential water systems and water filtration with over 40 years experience in well and water system design, service and installation of pumps, pressure tanks, storage systems, water treatment and filtration systems, including drinking water systems. We provide 24/7 emergency service and are committed to providing innovative products and exceptional customer service at a competitive price. Shiloh Water Systems is the authorized independent Kinetico dealer for the Willamette Valley. CCB# 164951

"Great price, professional service, great communication and education and wonderful company. Would recommend all day long!"

Breanne W on April 2024

Shiloh Water Systems is a family business specializing in residential water systems and water filtration with over 40 years experience in well and water system design, service and installation of pumps, pressure tanks, storage systems, water treatment and filtration systems, including drinking water systems. We provide 24/7 emergency service and are committed to providing innovative products and exceptional customer service at a competitive price. Shiloh Water Systems is the authorized independent Kinetico dealer for the Willamette Valley. CCB# 164951

"Great price, professional service, great communication and education and wonderful company. Would recommend all day long!"

Breanne W on April 2024


Avatar for OREGON ENVIRONMENTAL SERVICES LLC

OREGON ENVIRONMENTAL SERVICES LLC

New on AngiNew on Angi
Approved Pro

OREGON ENVIRONMENTAL SERVICES LLC

New on AngiNew on Angi
Approved Pro
3 years of experience
Free onsite estimate

OREGON ENVIRONMENTAL SERVICES LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

OREGON ENVIRONMENTAL SERVICES LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!


Avatar for Superior Underground, LLC

Superior Underground, LLC

4.83(
16
)
Approved Pro

Superior Underground, LLC

4.83(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
23 local quotes requested

We have over 17 years of experience in the business. Here at Superior Underground, LLC we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"project not completed"

Ben S on February 2025

We have over 17 years of experience in the business. Here at Superior Underground, LLC we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"project not completed"

Ben S on February 2025


Avatar for D & F Plumbing, Heating and Cooling

D & F Plumbing, Heating and Cooling

4.32(
463
)
Approved Pro

D & F Plumbing, Heating and Cooling

4.32(
463
)
Approved Pro
Customers say: Super punctual
675 local quotes requested
98 years of experience

Your home should be a place of comfort, not chaos... That's why we're dedicated to providing you with total home care, from AC to H2O! D&F's licensed journeyman technicians have been helping homeowners in the Pacific Northwest since 1927, offering the kind of service that's as reliable as the rain. From clogged drains to growling furnaces, our Plaid Pros will help you weather the storms of homeownership. We can even help with new construction! Contact us today for your plumbing, heating, or cooling needs. And we haven't forgotten about all you local business owners, developers, general contractors, and facility managers. Whether you're constructing a sleek new complex or just need maintenance, repairs, or upgrades for your commercial space, our Plumbers in Plaid are ready to be an extension of your team. Contact us for commercial services and new construction plumbing today! Licensed, Bonded, Insured. Oregon #26-23PBCCB *465 Washington #CCDAE DFPLU **3398N

"Everything was great, Eddy was very professional and friendly. He had our problem fixed pretty fast and we have had no problems since."

Frank S on September 2025

Your home should be a place of comfort, not chaos... That's why we're dedicated to providing you with total home care, from AC to H2O! D&F's licensed journeyman technicians have been helping homeowners in the Pacific Northwest since 1927, offering the kind of service that's as reliable as the rain. From clogged drains to growling furnaces, our Plaid Pros will help you weather the storms of homeownership. We can even help with new construction! Contact us today for your plumbing, heating, or cooling needs. And we haven't forgotten about all you local business owners, developers, general contractors, and facility managers. Whether you're constructing a sleek new complex or just need maintenance, repairs, or upgrades for your commercial space, our Plumbers in Plaid are ready to be an extension of your team. Contact us for commercial services and new construction plumbing today! Licensed, Bonded, Insured. Oregon #26-23PBCCB *465 Washington #CCDAE DFPLU **3398N

"Everything was great, Eddy was very professional and friendly. He had our problem fixed pretty fast and we have had no problems since."

Frank S on September 2025


Avatar for A AFFORDABLE SEPTIC SERVICE LLC

A AFFORDABLE SEPTIC SERVICE LLC

4.85(
94
)
Approved Pro

A AFFORDABLE SEPTIC SERVICE LLC

4.85(
94
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
53 local quotes requested

FREE ESTIMATES - call (503) 682-1929 today! We offer 24/7 emergency services. Since 1987, A-Affordable Septic Service has been providing high-quality septic system repairs and installations to Wilsonville, OR and surrounding areas. A-Affordable Septic Service provides the best in septic system services. Having your home or business septic system regularly maintained and cleaned increases its efficiency and saves on your utility bills. Call us today at A-Affordable Septic Service and we’ll make sure your septic system is properly serviced and maintained by our experienced technicians. DEQ LICENSE 37918 CCB 158246

"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"

Brad Z on November 2024

FREE ESTIMATES - call (503) 682-1929 today! We offer 24/7 emergency services. Since 1987, A-Affordable Septic Service has been providing high-quality septic system repairs and installations to Wilsonville, OR and surrounding areas. A-Affordable Septic Service provides the best in septic system services. Having your home or business septic system regularly maintained and cleaned increases its efficiency and saves on your utility bills. Call us today at A-Affordable Septic Service and we’ll make sure your septic system is properly serviced and maintained by our experienced technicians. DEQ LICENSE 37918 CCB 158246

"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"

Brad Z on November 2024

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Septic Tanks questions, answered by experts

There are a few signs that indicate a failing drain field. For instance, if your septic tank starts requiring more pumping than normal, your drain field might be failing. Other signs to watch for include poor drainage after rain, standing water or sewage over the septic system, a strong septic smell outside, new and healthy grass growing over the drain field, and plumbing backups in your sinks, bathtubs, or toilets.

Estimating what size well pump you need is challenging and often inaccurate, but a general rule of thumb is to take the number of fixtures—including water-consuming appliances—in your home and aim for that number in gallons per minute. That calculation method would allow for every fixture in your home to use about one gallon of water per minute. However, it’s best to leave the pump size determination to a professional technician, as they can ensure your pump is providing your home with sufficient water, especially during peak usage hours.

Recognizing signs of a failing septic system is crucial to prevent costly damage and health hazards. Foul odors in and around your home, slow drainage in sinks and toilets, or gurgling noises in plumbing fixtures can indicate problems with drainage. Lush, green patches of grass near the drain field or wastewater pooling on the ground are alarming signs that may indicate a leak in the system. If you notice any of these symptoms, it's vital to address them promptly to avoid more extensive and expensive issues.

A septic tank with a 1,500-gallon capacity is good for larger homes with up to 6 or 7 bedrooms. The average home can go with a smaller tank, about 1,000 gallons, which supports a home size of up to 2,500 square feet, or a home with about three bedrooms.

Never use Drano on blocked toilets. You can end up with a ghastly leak because the chemicals eat away at the glue that holds pipes together just as effectively as they do with clogs. Drano is known for being particularly rough on toilets, which is why some plumbers actually dislike the product. 

The Lake Oswego, OR homeowners’ guide to septic tank services

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

What do you need done? We’ll find top pros.
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