60/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 361 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Suisun, CA (2026)
22 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Suisun: American Sanitation Inc, CR Score 60/100; 5.0★ from 361 Google reviews.
- 2
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Contra Costa County, posts 24/7 hours; ranked #2 of 22.
- 3
Most-reviewed: Gray Plumbing Inc, 380 Google reviews at 4.7★, the most of 22 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
22 Suisun septic service companies are ranked here by CR Score, from ten published factors. 6 are open 24/7, 11 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.8★ across 22 rated businesses.
Top 10 septic service companies in Suisun at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | American Sanitation Inc | 60 | 5.0★ (361) | Napa, 14 mi away | — | Overall |
| 2 | Mr. Rooter Plumbing of Contra Costa County | 59 | 4.8★ (265) | Fairfield, 6 mi away | 24/7 | Emergencies |
| 3 | Gray Plumbing Inc | 55 | 4.7★ (380) | Fairfield, 1 mi away | — | Most reviews |
| 4 | El Sobrante Sewer Repair | 55 | 5.0★ (118) | El Sobrante, 23 mi away | Sat · Sun · Evenings | — |
| 5 | ABC Sewer & Drain | 55 | 4.4★ (59) | Benicia, 15 mi away | 24/7 | — |
| 6 | JNJ Rooter and Plumbing LLC | 54 | 5.0★ (261) | Alamo, 23 mi away | 24/7 | — |
| 7 | Mr Rooter Plumbing | 54 | 4.8★ (158) | Napa, 12 mi away | — | — |
| 8 | Mr. Rooter Plumbing of Solano County | 53 | 4.5★ (57) | Vallejo, 15 mi away | 24/7 | — |
| 9 | Delatorre Septic and Trucking LLC | 52 | 4.7★ (7) | Vacaville, 13 mi away | 24/7 | — |
| 10 | Copperfield Plumbing | 52 | 4.8★ (25) | Fairfield, 1 mi away | Sat | — |
The 22 best septic service companies in Suisun, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Fairfield, 6 mi away
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 265 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfield, 1 mi away
55/100CR ScoreRanked #3 because of its Google rating and review volume: 4.7★ from 380 Google reviews, the most in Suisun.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in El Sobrante, 23 mi away
55/100CR ScoreRanked #4 because of its Google rating and review volume: 5.0★ from 118 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Benicia, 15 mi away
55/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.4★ from 59 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alamo, 23 mi away
54/100CR ScoreRanked #6 because of its Google rating and review volume: 5.0★ from 261 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 12 mi away
54/100CR ScoreRanked #7 because of its Google rating and review volume: 4.8★ from 158 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Vallejo, 15 mi away
53/100CR ScoreRanked #8 because of its Google rating and review volume: 4.5★ from 57 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vacaville, 13 mi away
52/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfield, 1 mi away
52/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 25 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 14 mi away
52/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 74 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sonoma, 25 mi away
52/100CR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 90 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 13 mi away
50/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Antioch, 22 mi away
50/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Antioch, 20 mi away
49/100CR ScoreRanked #15 because of its Google rating and review volume: 3.9★ from 60 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#16 NS SEWER PIPING
Based in Vallejo, 13 mi away
49/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vallejo, 14 mi away
49/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.3★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in El Sobrante, 23 mi away
47/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.6★ from 30 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Martinez, 16 mi away
47/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Martinez, 16 mi away
47/100CR ScoreRanked #20 because of its Google rating and trade focus: 2.9★ from 34 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#21 Prushko Plumbing
Based in Sonoma, 22 mi away
44/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.6★ from 15 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Walnut Creek, 24 mi away
44/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Suisun
14 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 |
|---|---|---|
| A-1 Rapid Rooter | 23 mi | |
| American Eagle Plumbing & Construction | 5.0★ (1) | 22 mi |
| Antioch Sewer Services | 20 mi | |
| Campi Engineering | 5.0★ (2) | 6 mi |
| Cost-U-Less Septic Plumbing | 19 mi | |
| Ernie's Plumbing & Sewer Services | 21 mi | |
| Evenflow sewer repair - Concord | 18 mi | |
| Flush It Down Plumbing | 5.0★ (11) | In Suisun |
| Rooterman Drain & Sewer Service | 5.0★ (2) | 14 mi |
| Sewer Master | 13 mi | |
| Sewerinspections | 22 mi | |
| Tony B's Sewer and Drain Service | 3.0★ (2) | 7 mi |
| Trinity Oaks Septic Services | 5.0★ (1) | 23 mi |
| Walker Septic Services | 24 mi |
How we ranked Suisun septic service companies
We scored 22 Suisun 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 Suisun 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 Suisun: frequently asked questions
Who is the best septic service company in Suisun?
By CR Score, the highest-ranked septic service company in Suisun, CA is American Sanitation Inc with a CR Score of 60/100. It has 5.0★ from 361 Google reviews. Mr. Rooter Plumbing of Contra Costa County (#2) and Gray Plumbing Inc (#3) follow. We ranked 22 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Suisun?
ContractorsRanked ranks 22 septic service companies serving Suisun, CA. Another 14 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Suisun are open 24/7?
6 ranked septic service companies in Suisun post 24/7 hours. The highest-ranked are Mr. Rooter Plumbing of Contra Costa County (#2), ABC Sewer & Drain (#5) and JNJ Rooter and Plumbing LLC (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Suisun work on weekends?
11 of 22 ranked septic service companies post Saturday hours and 6 post Sunday hours. The highest-ranked open Saturdays are Mr. Rooter Plumbing of Contra Costa County (#2), El Sobrante Sewer Repair (#4) and ABC Sewer & Drain (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Suisun septic service companies have?
The median Google rating among 22 rated septic service companies in Suisun is 4.8★, with a median of 46 reviews. Gray Plumbing Inc has the most, 380 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 Suisun count in this ranking?
Yes, if they are within 25 mi of the Suisun 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 Suisun
- November 2026: CR Scores recalculated for 22 septic service companies serving Suisun.
More septic service companies and Suisun pages
Septic service companies near Suisun
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