61/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 68 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Longview, WA (2026)
12 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Longview: All Out Sewer & Drain Service, Inc, CR Score 61/100; 4.8★ from 68 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Drain king, posts 24/7 hours; ranked #2 of 12.
- 3
Most-reviewed: Wild Pine Plumbing, 187 Google reviews at 4.9★, the most of 12 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
12 Longview septic service companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 7 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 12 rated businesses.
Top 10 septic service companies in Longview at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | All Out Sewer & Drain Service, Inc | 61 | 4.8★ (68) | Kelso, 1 mi away | 24/7 | Overall |
| 2 | Drain king | 59 | 4.6★ (95) | Longview | 24/7 | Emergencies |
| 3 | Wild Pine Plumbing | 57 | 4.9★ (187) | Saint Helens, 20 mi away | 24/7 | Most reviews |
| 4 | United Site Services | 55 | 2.9★ (9) | Longview | Sat · Evenings | — |
| 5 | Reliable Septic Tank Services | 55 | 3.0★ (4) | Longview | — | — |
| 6 | St Helens-Scappoose Septic Services | 55 | 4.9★ (23) | Saint Helens, 20 mi away | — | — |
| 7 | Makana Trucking and Excavation, Inc. | 53 | 4.9★ (17) | Saint Helens, 21 mi away | Sat · Evenings | — |
| 8 | Blue Heron Septic & Drain Services | 53 | 4.5★ (46) | Saint Helens, 20 mi away | — | — |
| 9 | Molecular Inc. - No Dig Sewer Repair | 52 | 4.8★ (5) | Longview | — | — |
| 10 | Cor Tech Plumbing & Mechanical LLC | 52 | 5.0★ (7) | Longview | Sat · Sun · Evenings | — |
The 12 best septic service companies in Longview, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
#2 Drain king
Based in Longview
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.6★ from 95 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Helens, 20 mi away
57/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 187 Google reviews, the most in Longview.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longview
55/100CR ScoreRanked #4 because of its Google rating and trade focus: 2.9★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longview
55/100CR ScoreRanked #5 because of its Google rating and trade focus: 3.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Saint Helens, 20 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Saint Helens, 21 mi away
53/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Helens, 20 mi away
53/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.5★ from 46 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longview
52/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Longview
52/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#11 Roto Pro
Based in Five Corners, 16 mi away
49/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kelso, 7 mi away
49/100CR ScoreRanked #12 because of its Google rating and trade focus: 3.5★ from 15 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Longview
4 more septic service companies within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Anytime Sewer & Drain Service, LLC | 10 mi | |
| Axium Excavation LLC | 10 mi | |
| Peltzer Septic Tank | 5.0★ (2) | In Longview |
| Reliable Septic Tank Services | In Longview |
How we ranked Longview septic service companies
We scored 12 Longview septic service companies on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 3, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Longview data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Septic service companies in Longview: frequently asked questions
Who is the best septic service company in Longview?
By CR Score, the highest-ranked septic service company in Longview, WA is All Out Sewer & Drain Service, Inc with a CR Score of 61/100. It has 4.8★ from 68 Google reviews. It is open 24/7. Drain king (#2) and Wild Pine Plumbing (#3) follow. We ranked 12 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Longview?
ContractorsRanked ranks 12 septic service companies serving Longview, WA. 5 of them are based in Longview; the rest serve it from nearby towns. Another 4 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Longview are open 24/7?
4 ranked septic service companies in Longview post 24/7 hours. The highest-ranked are All Out Sewer & Drain Service, Inc (#1), Drain king (#2) and Wild Pine Plumbing (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Longview work on weekends?
7 of 12 ranked septic service companies post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are All Out Sewer & Drain Service, Inc (#1), Drain king (#2) and Wild Pine Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Longview septic service companies have?
The median Google rating among 12 rated septic service companies in Longview is 4.8★, with a median of 16 reviews. Wild Pine Plumbing has the most, 187 reviews, and ranks #3. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank septic service companies?
Each septic service company gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do septic service companies outside Longview count in this ranking?
Yes, if they are within 25 mi of the Longview city center, our service radius for septic service companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can septic service companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Longview
- November 2026: CR Scores recalculated for 12 septic service companies serving Longview.
More septic service companies and Longview pages
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