58/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Hercules, CA (2026)
44 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Hercules: El Sobrante Sewer Repair, CR Score 58/100; 5.0★ from 118 Google reviews; open 7 days a week.
- 4
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Contra Costa County, posts 24/7 hours; ranked #4 of 44.
- 3
Most-reviewed: Ace Plumbing & Rooter, Inc., 931 Google reviews at 4.9★, the most of 44 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
44 Hercules septic service companies are ranked here by CR Score, from ten published factors. 16 are open 24/7, 24 open Saturdays and 17 open Sundays, based on posted hours. The median Google rating is 4.8★ across 44 rated businesses.
Top 10 septic service companies in Hercules at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | El Sobrante Sewer Repair | 58 | 5.0★ (118) | El Sobrante, 4 mi away | Sat · Sun · Evenings | Overall |
| 2 | American Sanitation Inc | 57 | 5.0★ (361) | Napa, 20 mi away | — | — |
| 3 | Ace Plumbing & Rooter, Inc. | 56 | 4.9★ (931) | San Francisco, 18 mi away | Sat · Sun · Evenings | Most reviews |
| 4 | Mr. Rooter Plumbing of Contra Costa County | 55 | 4.8★ (265) | Fairfield, 15 mi away | 24/7 | Emergencies |
| 5 | GTO. Plumbing and rooter | 55 | 4.9★ (59) | Richmond, 6 mi away | 24/7 | — |
| 6 | ABC Sewer & Drain | 55 | 4.4★ (59) | Benicia, 10 mi away | 24/7 | — |
| 7 | JNJ Rooter and Plumbing LLC | 54 | 5.0★ (261) | Alamo, 18 mi away | 24/7 | — |
| 8 | Dan's Plumbing & Sewer Service | 54 | 5.0★ (236) | San Rafael, 13 mi away | — | — |
| 9 | Mr. Rooter Plumbing of Solano County | 53 | 4.5★ (57) | Vallejo, 7 mi away | 24/7 | — |
| 10 | Isackson Plumbing | 53 | 5.0★ (74) | San Francisco, 18 mi away | 24/7 | — |
The 44 best septic service companies in Hercules, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Napa, 20 mi away
57/100CR ScoreRanked #2 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.
Based in San Francisco, 18 mi away
56/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 931 Google reviews, the most in Hercules.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfield, 15 mi away
55/100CR ScoreRanked #4 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 Richmond, 6 mi away
55/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 59 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Benicia, 10 mi away
55/100CR ScoreRanked #6 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, 18 mi away
54/100CR ScoreRanked #7 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 San Rafael, 13 mi away
54/100CR ScoreRanked #8 because of its Google rating and review volume: 5.0★ from 236 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vallejo, 7 mi away
53/100CR ScoreRanked #9 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 San Francisco, 18 mi away
53/100CR ScoreRanked #10 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 Richmond, 6 mi away
51/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 127 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 15 mi away
51/100CR ScoreRanked #12 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 Sonoma, 22 mi away
51/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 90 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in El Sobrante, 3 mi away
51/100CR ScoreRanked #14 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 San Francisco, 18 mi away
50/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Daly City, 24 mi away
50/100CR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 486 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alameda, 20 mi away
50/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 36 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Novato, 14 mi away
50/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alamo, 23 mi away
50/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.2★ from 24 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vallejo, 8 mi away
50/100CR ScoreRanked #20 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.
#21 NS SEWER PIPING
Based in Vallejo, 8 mi away
49/100CR ScoreRanked #21 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.
#22 Marin H2O
Based in San Rafael, 14 mi away
49/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 127 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakland, 19 mi away
49/100CR ScoreRanked #23 because of its Google rating and trade focus: 3.1★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 19 mi away
49/100CR ScoreRanked #24 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 San Francisco, 22 mi away
49/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.0★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 44 septic service companies
#1 to #25 are shown in full above. Here are #26 to #44, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Gray Plumbing Inc | 49 | 4.7★ (380) | 20 mi |
| 27 | Underground Rooter Sewer and Drains | 48 | 5.0★ (12) | 16 mi |
| 28 | Albion Plumbing Rooter Inc - Plumber in Alameda, CA | 48 | 4.8★ (17) | 21 mi |
| 29 | Environmental Pump Services | 48 | 3.5★ (11) | 24 mi |
| 30 | Napa Septic Tank Service, Inc. | 48 | 5.0★ (5) | 19 mi |
| 31 | AquaSaver Water Heaters | 47 | 5.0★ (5) | 17 mi |
| 32 | Icon Plumbing & Design | 47 | 4.0★ (4) | 14 mi |
| 33 | The Oakland Plumber | Emergency Plumbing Service | 47 | 5.0★ (3) | 14 mi |
| 34 | JD Services | 47 | 2.9★ (23) | 18 mi |
| 35 | Prestige Plumbing and Sewer LLC | 47 | 4.4★ (14) | 12 mi |
| 36 | Sewer Master | 47 | 4.4★ (14) | 13 mi |
| 37 | Ernie's Plumbing and Sewer Service | 47 | 2.9★ (34) | 10 mi |
| 38 | Total Underground Construction | 46 | 5.0★ (6) | 22 mi |
| 39 | Copperfield Plumbing | 46 | 4.8★ (25) | 22 mi |
| 40 | Mr Rooter Plumbing / Marin | 46 | 4.2★ (17) | 14 mi |
| 41 | Howie Excavating & Grading | 45 | 5.0★ (7) | 14 mi |
| 42 | Val Betti Plumbing | 45 | 5.0★ (14) | 15 mi |
| 43 | Prushko Plumbing | 43 | 4.6★ (15) | 20 mi |
| 44 | Arolo Company Inc. Pump & Well | 39 | 2.6★ (17) | 24 mi |
Also serving Hercules
19 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 | 14 mi | |
| American Eagle Plumbing & Construction | 5.0★ (1) | 4 mi |
| Bay Area Restaurant Services LLC | 21 mi | |
| Campi Engineering | 5.0★ (2) | 24 mi |
| Carlos' Petaluma Septic Services | 12 mi | |
| Ernie's Plumbing & Sewer Services | 3 mi | |
| Evenflow sewer repair - Concord | 14 mi | |
| North Bay Septic Services | 5.0★ (1) | 12 mi |
| Quick Fix Septic | 19 mi | |
| Rooterman Drain & Sewer Service | 5.0★ (2) | 7 mi |
| Roy's Sewer Services | 5.0★ (1) | 24 mi |
| Septic Services in Oakland | 15 mi | |
| Sequoia Septic Tank Services | 12 mi | |
| Sewer & Drain Masters | 6 mi | |
| Sewer Master | 8 mi | |
| Sewerinspections | 2 mi | |
| The Home Depot | 4.0★ (990) | In Hercules |
| Trinity Oaks Septic Services | 5.0★ (1) | 21 mi |
| Walker Septic Services | 23 mi |
How we ranked Hercules septic service companies
We scored 44 Hercules 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 Hercules 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 Hercules: frequently asked questions
Who is the best septic service company in Hercules?
By CR Score, the highest-ranked septic service company in Hercules, CA is El Sobrante Sewer Repair with a CR Score of 58/100. It has 5.0★ from 118 Google reviews. It is open 7 days a week. American Sanitation Inc (#2) and Ace Plumbing & Rooter, Inc. (#3) follow. We ranked 44 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Hercules?
ContractorsRanked ranks 44 septic service companies serving Hercules, CA. Another 19 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Hercules are open 24/7?
16 ranked septic service companies in Hercules post 24/7 hours. The highest-ranked are Mr. Rooter Plumbing of Contra Costa County (#4), GTO. Plumbing and rooter (#5) and ABC Sewer & Drain (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Hercules work on weekends?
24 of 44 ranked septic service companies post Saturday hours and 17 post Sunday hours. The highest-ranked open Saturdays are El Sobrante Sewer Repair (#1), Ace Plumbing & Rooter, Inc. (#3) and Mr. Rooter Plumbing of Contra Costa County (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Hercules septic service companies have?
The median Google rating among 44 rated septic service companies in Hercules is 4.8★, with a median of 24 reviews. Ace Plumbing & Rooter, Inc. has the most, 931 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 Hercules count in this ranking?
Yes, if they are within 25 mi of the Hercules 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 Hercules
- November 2026: CR Scores recalculated for 44 septic service companies serving Hercules.
More septic service companies and Hercules pages
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