62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,351 Google reviews, the most in Walla Walla.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Walla Walla, WA (2026)
5 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Walla Walla: Total Comfort Solutions, LLC, CR Score 62/100; 4.9★ from 1,351 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): 365 Plumbing and Drain, posts 24/7 hours; ranked #4 of 5.
- 5
Most-reviewed: Roto Rooter Service - Walla Walla, 144 Google reviews at 4.9★, the most of 5 ranked after Total Comfort Solutions, LLC; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Walla Walla septic service companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 3 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 5 rated businesses.
Top 5 septic service companies in Walla Walla at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Total Comfort Solutions, LLC | 62 | 4.9★ (1,351) | Walla Walla | 24/7 | Overall |
| 2 | Walt's Septic Tank & Portable Toilets | 58 | 4.9★ (57) | Walla Walla | — | — |
| 3 | Gary's Septic Tank Services | 56 | 4.4★ (9) | Walla Walla | — | — |
| 4 | 365 Plumbing and Drain | 55 | 5.0★ (28) | College Place, 1 mi away | 24/7 | Emergencies |
| 5 | Roto Rooter Service - Walla Walla | 54 | 4.9★ (144) | Kennewick, 17 mi away | 24/7 | Most reviews |
The 5 best septic service companies in Walla Walla, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Walla Walla
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 57 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Walla Walla
56/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.4★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in College Place, 1 mi away
55/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 28 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kennewick, 17 mi away
54/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 144 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
How we ranked Walla Walla septic service companies
We scored 5 Walla Walla 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 Walla Walla 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 Walla Walla: frequently asked questions
Who is the best septic service company in Walla Walla?
By CR Score, the highest-ranked septic service company in Walla Walla, WA is Total Comfort Solutions, LLC with a CR Score of 62/100. It has 4.9★ from 1,351 Google reviews. It is open 24/7. Walt's Septic Tank & Portable Toilets (#2) and Gary's Septic Tank Services (#3) follow. We ranked 5 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Walla Walla?
ContractorsRanked ranks 5 septic service companies serving Walla Walla, WA. 3 of them are based in Walla Walla; the rest serve it from nearby towns. Counts are as of November 2026.
Which septic service companies in Walla Walla are open 24/7?
3 ranked septic service companies in Walla Walla post 24/7 hours. The highest-ranked are Total Comfort Solutions, LLC (#1), 365 Plumbing and Drain (#4) and Roto Rooter Service - Walla Walla (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Walla Walla work on weekends?
3 of 5 ranked septic service companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Total Comfort Solutions, LLC (#1), 365 Plumbing and Drain (#4) and Roto Rooter Service - Walla Walla (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Walla Walla septic service companies have?
The median Google rating among 5 rated septic service companies in Walla Walla is 4.9★, with a median of 57 reviews. Total Comfort Solutions, LLC has the most, 1,351 reviews, and ranks #1. 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 Walla Walla count in this ranking?
Yes, if they are within 25 mi of the Walla Walla 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 Walla Walla
- November 2026: CR Scores recalculated for 5 septic service companies serving Walla Walla.
More septic service companies and Walla Walla pages
Septic service companies near Walla Walla
Other trades in Walla Walla
- Roofers in Walla Walla33 ranked
- Plumbers in Walla Walla13 ranked
- Electricians in Walla Walla12 ranked
- HVAC contractors in Walla Walla11 ranked
- General contractors in Walla Walla28 ranked
- Painters in Walla Walla12 ranked
- Landscapers in Walla Walla22 ranked
- Handymen in Walla Walla5 ranked
- Kitchen remodelers in Walla Walla12 ranked
- Bathroom remodelers in Walla Walla11 ranked
- Flooring contractors in Walla Walla9 ranked
- Concrete contractors in Walla Walla12 ranked
- Fence contractors in Walla Walla6 ranked
- Siding contractors in Walla Walla13 ranked
- Window installers in Walla Walla11 ranked
- Solar installers in Walla Walla5 ranked
- Tree services in Walla Walla11 ranked
- Masonry contractors in Walla Walla6 ranked
- Water damage restoration companies in Walla Walla15 ranked
- Home builders in Walla Walla24 ranked
- Excavating contractors in Walla Walla8 ranked
- Pool builders in Walla Walla5 ranked
- All contractors in Walla Walla