59/100CR Score
Ranked #1 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.
Best Septic Service Companies in Concord, CA (2026)
38 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Concord: JNJ Rooter and Plumbing LLC, CR Score 59/100; 5.0★ from 261 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Contra Costa County, posts 24/7 hours; ranked #3 of 38.
- 15
Most-reviewed: Precision Plumbing & Contracting, 396 Google reviews at 4.8★, the most of 38 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Concord septic service companies are ranked here by CR Score, from ten published factors. 19 are open 24/7, 24 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.8★ across 38 rated businesses.
Top 10 septic service companies in Concord at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | JNJ Rooter and Plumbing LLC | 59 | 5.0★ (261) | Alamo, 5 mi away | 24/7 | Overall |
| 2 | El Sobrante Sewer Repair | 57 | 5.0★ (118) | El Sobrante, 14 mi away | Sat · Sun · Evenings | — |
| 3 | Mr. Rooter Plumbing of Contra Costa County | 56 | 4.8★ (265) | Fairfield, 17 mi away | 24/7 | Emergencies |
| 4 | Hydroworks Plumbing | 56 | 5.0★ (27) | Hayward, 25 mi away | 24/7 | — |
| 5 | Mr. Rooter Plumbing of The Tri-Valley | 56 | 4.8★ (271) | San Ramon, 18 mi away | 24/7 | — |
| 6 | A-1 Septic Tank Service Inc | 55 | 4.4★ (34) | Hayward, 25 mi away | 24/7 | — |
| 7 | Williams Sanitary Service Inc | 54 | 4.7★ (28) | Discovery Bay, 18 mi away | — | — |
| 8 | All Hayward Plumbing, Drain & Sewer Co. | 54 | 5.0★ (43) | Hayward, 24 mi away | 24/7 | — |
| 9 | Michael Gardner Plumbing | 53 | 5.0★ (94) | San Lorenzo, 22 mi away | 24/7 | — |
| 10 | ABC Sewer & Drain | 53 | 4.4★ (59) | Benicia, 19 mi away | 24/7 | — |
The 38 best septic service companies in Concord, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in El Sobrante, 14 mi away
57/100CR ScoreRanked #2 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 Fairfield, 17 mi away
56/100CR ScoreRanked #3 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 Hayward, 25 mi away
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Ramon, 18 mi away
56/100CR ScoreRanked #5 because of its Google rating and review volume: 4.8★ from 271 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hayward, 25 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.4★ from 34 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Discovery Bay, 18 mi away
54/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Hayward, 24 mi away
54/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Lorenzo, 22 mi away
53/100CR ScoreRanked #9 because of its Google rating and review volume: 5.0★ from 94 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Benicia, 19 mi away
53/100CR ScoreRanked #10 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 Richmond, 17 mi away
53/100CR ScoreRanked #11 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 Hayward, 21 mi away
53/100CR ScoreRanked #12 because of its Google rating and review volume: 4.8★ from 98 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vallejo, 16 mi away
52/100CR ScoreRanked #13 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 Alamo, 20 mi away
51/100CR ScoreRanked #14 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 Brentwood, 19 mi away
51/100CR ScoreRanked #15 because of its Google rating and review volume: 4.8★ from 396 Google reviews, the most in Concord.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Antioch, 14 mi away
51/100CR ScoreRanked #16 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, 12 mi away
51/100CR ScoreRanked #17 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.
Based in Fairfield, 18 mi away
51/100CR ScoreRanked #18 because of its Google rating and review volume: 4.7★ from 380 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Napa, 21 mi away
51/100CR ScoreRanked #19 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 Oakland, 18 mi away
50/100CR ScoreRanked #20 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 Martinez, 3 mi away
50/100CR ScoreRanked #21 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 Richmond, 17 mi away
50/100CR 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 Livermore, 21 mi away
50/100CR ScoreRanked #23 because of its Google rating and review volume: 4.7★ from 23 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Leandro, 20 mi away
50/100CR ScoreRanked #24 because of its Google rating and availability: 4.8★ from 17 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hayward, 24 mi away
49/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 14 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 38 septic service companies
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Ernie's Plumbing and Sewer Service | 49 | 2.9★ (34) | 4 mi |
| 27 | USA Rooter & Plumbing | 49 | 4.3★ (31) | 21 mi |
| 28 | Sewer Connection Inc | 49 | 4.6★ (30) | 15 mi |
| 29 | NS SEWER PIPING | 49 | 5.0★ (19) | 15 mi |
| 30 | JD Services | 48 | 2.9★ (23) | 18 mi |
| 31 | United Rentals - Reliable Onsite Services | 48 | 4.3★ (3) | 17 mi |
| 32 | Val Betti Plumbing | 48 | 5.0★ (14) | 6 mi |
| 33 | Total Underground Construction | 47 | 5.0★ (6) | 21 mi |
| 34 | Copperfield Plumbing | 47 | 4.8★ (25) | 19 mi |
| 35 | AquaSaver Water Heaters | 47 | 5.0★ (5) | 20 mi |
| 36 | Underground Rooter Sewer and Drains | 47 | 5.0★ (12) | 25 mi |
| 37 | The Oakland Plumber | Emergency Plumbing Service | 47 | 5.0★ (3) | 17 mi |
| 38 | Sewer Master | 47 | 4.4★ (14) | 17 mi |
Also serving Concord
15 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 | 5 mi | |
| American Eagle Plumbing & Construction | 5.0★ (1) | 12 mi |
| Antioch Sewer Services | 12 mi | |
| Bay Area Restaurant Services LLC | 13 mi | |
| Campi Engineering | 5.0★ (2) | 24 mi |
| Castro Valley's H & R Plumbing - Plumbing Sewer Repair and Installation, Drain Cleaner | 23 mi | |
| Discovery Bay Sewer Services | 24 mi | |
| Ernie's Plumbing & Sewer Services | 12 mi | |
| Evenflow sewer repair - Concord | In Concord | |
| Rooterman Drain & Sewer Service | 5.0★ (2) | 14 mi |
| Septic Services in Oakland | 18 mi | |
| Sewer & Drain Masters | 18 mi | |
| Sewer Master | 15 mi | |
| Sewerinspections | 15 mi | |
| Tony B's Sewer and Drain Service | 3.0★ (2) | 24 mi |
How we ranked Concord septic service companies
We scored 38 Concord 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 2, 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 Concord 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 Concord: frequently asked questions
Who is the best septic service company in Concord?
By CR Score, the highest-ranked septic service company in Concord, CA is JNJ Rooter and Plumbing LLC with a CR Score of 59/100. It has 5.0★ from 261 Google reviews. It is open 24/7. El Sobrante Sewer Repair (#2) and Mr. Rooter Plumbing of Contra Costa County (#3) follow. We ranked 38 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Concord?
ContractorsRanked ranks 38 septic service companies serving Concord, CA. Another 15 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Concord are open 24/7?
19 ranked septic service companies in Concord post 24/7 hours. The highest-ranked are JNJ Rooter and Plumbing LLC (#1), Mr. Rooter Plumbing of Contra Costa County (#3) and Hydroworks Plumbing (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Concord work on weekends?
24 of 38 ranked septic service companies post Saturday hours and 19 post Sunday hours. The highest-ranked open Saturdays are JNJ Rooter and Plumbing LLC (#1), El Sobrante Sewer Repair (#2) and Mr. Rooter Plumbing of Contra Costa County (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Concord septic service companies have?
The median Google rating among 38 rated septic service companies in Concord is 4.8★, with a median of 29 reviews. Precision Plumbing & Contracting has the most, 396 reviews, and ranks #15. 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 Concord count in this ranking?
Yes, if they are within 25 mi of the Concord 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 Concord
- November 2026: CR Scores recalculated for 38 septic service companies serving Concord.
More septic service companies and Concord pages
Septic service companies near Concord
- Septic service companies in Pleasant Hill, CA42 ranked
- Septic service companies in Bay Point, CA28 ranked
- Septic service companies in Walnut Creek, CA44 ranked
- Septic service companies in Clayton, CA37 ranked
- Septic service companies in Martinez, CA46 ranked
- Septic service companies in Lafayette, CA53 ranked
- Septic service companies in Benicia, CA41 ranked
- Septic service companies in Pittsburg, CA21 ranked
- Septic service companies in Alamo, CA41 ranked
- Septic service companies in Orinda, CA57 ranked
Other trades in Concord
- Roofers in Concord683 ranked
- Plumbers in Concord538 ranked
- Electricians in Concord344 ranked
- HVAC contractors in Concord464 ranked
- General contractors in Concord762 ranked
- Painters in Concord145 ranked
- Landscapers in Concord148 ranked
- Handymen in Concord81 ranked
- Kitchen remodelers in Concord399 ranked
- Bathroom remodelers in Concord383 ranked
- Flooring contractors in Concord274 ranked
- Tile installers in Concord50 ranked
- Drywall contractors in Concord16 ranked
- Concrete contractors in Concord250 ranked
- Fence contractors in Concord119 ranked
- Deck builders in Concord130 ranked
- Siding contractors in Concord95 ranked
- Window installers in Concord304 ranked
- Gutter installers in Concord164 ranked
- Insulation contractors in Concord87 ranked
- Solar installers in Concord308 ranked
- Garage door repair companies in Concord170 ranked
- Foundation repair companies in Concord112 ranked
- Tree services in Concord213 ranked
- Masonry contractors in Concord103 ranked
- Water damage restoration companies in Concord344 ranked
- Home builders in Concord416 ranked
- Demolition contractors in Concord82 ranked
- Window cleaners in Concord76 ranked
- Pressure washing companies in Concord69 ranked
- Pest control companies in Concord193 ranked
- Paving contractors in Concord148 ranked
- Auto glass repair shops in Concord262 ranked
- Excavating contractors in Concord69 ranked
- Pool builders in Concord202 ranked
- All contractors in Concord