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Best septic tank pros near Longview, WA

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TRUSTED BY LONGVIEW, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon31
    Verified septic tank services reviews

Top-Rated Septic tank pros in Longview - Updated Nov 2026

WASHINGTON SEPTIC SERVICES LLC
5.0(
3
)
Septic Tank - Clean or Pump OutSeptic System - Install or ReplaceSeptic System - Repair+3 more

Serving Longview, WA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"individuals completing my septic issues were knowledgeable and efficient. They explained what this issue was and how to avoid problems in the future. Also, the charge was reasonable for the work involved. I would highly recommend and hire them in the future."
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+1

Response time1 day
Response rate96%
20 neighbors recently requested a quote
Avatar for Sasquatch Septic
Sasquatch Septic
5.0(
4
)
Septic Tank - Clean or Pump Out

Serving Longview, WA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Sasquatch Septic 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.

Response time2 hrs
Avatar for Alltime Construction LLC
Alltime Construction LLC
5.0(
1
)
Septic System - Install or Replace

Serving Longview, WA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Our company provides exceptional service to the surrounding areas. Always taking pride in all of our services, striving to execute with excellence, and putting our customers in the forefront, is our philosophy. Whatever your Masonry needs may be, you can count on our company to leave you satisfied and happy. \nCall today , youÂ’ll be pleased you did. Thank you \n

Response time5 days
1 neighbors recently requested a quote
Avatar for Roto Pro
Roto Pro
5.0(
5
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Longview, WA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Our septic tank decided it was time to back up as we were heading out of town this last month. Grant was amazing. He came out and scoped the line and could tell that our original cast iron pipe had failed and would need to be replaced. He offered the same day replacement and did so at about half the cost of some other local plumbers. I would highly recommend Grant and his team to anyone in need of plumbing services."
Response time5 hrs
Response rate100%
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Longview, WA and surrounding areas

In business since 1971

Credit card accepted

"I just pay $75 you never know who's going to come out. They do everything electrical. Just about everything is covered except the septic tank. I had an air conditioner replaced. It went great, all I had to do was pay for the freon. He didn't charge e more than what was needed."
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+2

Recommended by65%of homeowners
Avatar for Lake's General Contracting
Lake's General Contracting
4.9(
8
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Longview, WA and surrounding areas

In business since 2018

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! Our mission at Lakes General Contracting is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Lake's General Contracting stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

Recommended by100%of homeowners
Terrybbandegrift
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Longview, WA and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"The project went very well! Contractor is well versed and knowledgeable. Contractor was able to offer advice and recommendations that saved us money without jeopardizing the efficiency of the new system. Highly recommend Terry for any and all septic services!"
Recommended by100%of homeowners
Avatar for I 5 Exteriors, Inc.
I 5 Exteriors, Inc.
3.5(
96
)
Septic System - RepairSeptic System - Repair - For Business

Serving Longview, WA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

I 5 Exteriors, Inc. is at the forefront for Home Improvement & Restoration in PNW. We are family owned and operated with over 20 years of experience in the industry. Our Company is licensed, bonded, and insured for both the state of Oregon and Washington, with 3 Registered Locations: Vancouver WA, Lacy, WA, and Long Beach WA. Our philosophy has remained unchanged since the opening of our doors: Deliver a quality product on-time and on budget by exceeding the expectations of the following values: Integrity, Quality & Family. We specialize in both Commercial & Residential Roofing Repair & Replacement, Exterior Siding Installation & Exterior Home Painting, Windows Installation, Deck & Patio Construction & Installation, Paver Stones, Gutter Installation, and Fire, Water & Smoke Restoration.

New Roof
Response time1 day
Response rate96%
Recommended by91%of homeowners
Showing 1-10 of 17
Septic Tanks FAQs, answered by experts

In Longview, you’ll encounter full-service septic contractors who handle everything from septic system maintenance to installations, septic tank pumping specialists for routine care, excavation experts for system replacements, and system designers who tailor solutions for local clay soils and high water tables. Each brings expertise suited to Longview’s unique environmental challenges and regulatory requirements.

Helpful?

For septic tank service in Longview, it’s helpful to keep septic-safe toilet paper, a septic tank probe for locating lids, pH test strips, and a water level gauge for monitoring. Rubber gloves, a flashlight, and absorbent materials are useful for quick cleanups. During wet seasons, having drain screens and septic-safe cleaners ready can help manage backups or delays in professional septic system maintenance.

Helpful?

In Longview, start spring with a septic tank inspection for winter damage and check for pooling water. Summer is ideal for monitoring vegetation and clearing roots from drain fields. In fall, clear gutters and inspect system seals before the rainy season. During winter, visually check for surface water or frozen pipes monthly, as Longview’s high rainfall and fluctuating groundwater can impact septic performance.

Helpful?

In Longview, concrete septic tanks are preferred for durability in wet, clay-heavy soils, while fiberglass tanks are useful for properties with limited access. Use HDPE risers and insulated lids to prevent freezing. For drain fields, locally sourced gravel and sand ensure proper filtration, and PVC Schedule 40 or corrugated HDPE pipes offer reliable distribution. Cold-weather bacterial additives support system health during Longview’s damp winters.

Helpful?

In Longview, most routine septic tank maintenance projects, such as pumping or septic tank inspection, typically take 2–4 hours, depending on tank accessibility and soil conditions. Minor repairs may extend to 1–2 days, while larger jobs like drain field repairs or full system replacements can last several days, especially if heavy rainfall or saturated clay soils delay excavation and backfilling.

Helpful?

The Longview, WA homeowners’ guide to septic tank services

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