60/100CR Score
Ranked #1 because of its Google rating and review volume: 4.7★ from 1,664 Google reviews, the most in Lathrop.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Lathrop, CA (2026)
32 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Lathrop: Roto-Rooter Plumbing & Water Cleanup, CR Score 60/100; 4.7★ from 1,664 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): French Camp Septic Service, posts 24/7 hours; ranked #2 of 32.
- 3
Most-reviewed: JC SEWER & DRAIN PLUMBING LIC#845004, 443 Google reviews at 4.9★, the most of 32 ranked after Roto-Rooter Plumbing & Water Cleanup; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
32 Lathrop septic service companies are ranked here by CR Score, from ten published factors. 15 are open 24/7, 22 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.8★ across 32 rated businesses.
Top 10 septic service companies in Lathrop at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roto-Rooter Plumbing & Water Cleanup | 60 | 4.7★ (1,664) | Manteca, 4 mi away | 24/7 | Overall |
| 2 | French Camp Septic Service | 57 | 5.0★ (7) | Stockton, 4 mi away | 24/7 | Emergencies |
| 3 | JC SEWER & DRAIN PLUMBING LIC#845004 | 57 | 4.9★ (443) | Stockton, 14 mi away | Sat · Sun | Most reviews |
| 4 | Pro Pumping Septic Service | 56 | 4.8★ (45) | Salida, 14 mi away | Sat · Sun | — |
| 5 | Parrish & Sons Inc | 56 | 4.3★ (23) | Stockton, 12 mi away | 24/7 | — |
| 6 | Discount Plumbing | 56 | 4.6★ (253) | Manteca, 4 mi away | 24/7 | — |
| 7 | Twinsseptic | 55 | 5.0★ (24) | Lodi, 22 mi away | 24/7 | — |
| 8 | Top Tier Plumbing Inc. | 54 | 5.0★ (346) | Modesto, 23 mi away | 24/7 | — |
| 9 | Mountain Valley Pumping | 53 | 4.4★ (29) | Oakdale, 25 mi away | 24/7 | — |
| 10 | AAA Septic Inc. | 53 | 4.7★ (28) | Manteca, 3 mi away | — | — |
The 32 best septic service companies in Lathrop, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Stockton, 4 mi away
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stockton, 14 mi away
57/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 443 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salida, 14 mi away
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stockton, 12 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.3★ 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 Manteca, 4 mi away
56/100CR ScoreRanked #6 because of its Google rating and review volume: 4.6★ from 253 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#7 Twinsseptic
Based in Lodi, 22 mi away
55/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 23 mi away
54/100CR ScoreRanked #8 because of its Google rating and review volume: 5.0★ from 346 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakdale, 25 mi away
53/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.4★ from 29 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#10 AAA Septic Inc.
Based in Manteca, 3 mi away
53/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Oakdale, 24 mi away
52/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stockton, 12 mi away
52/100CR ScoreRanked #12 because of its Google rating and review volume: 4.5★ from 111 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 21 mi away
52/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.7★ from 111 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 11 mi away
52/100CR ScoreRanked #14 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.
Based in Manteca, 4 mi away
52/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ 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 Modesto, 14 mi away
51/100CR ScoreRanked #16 because of its Google rating and review volume: 4.5★ from 58 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakdale, 25 mi away
51/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ 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 Escalon, 16 mi away
50/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 149 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Galt, 24 mi away
50/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 53 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 24 mi away
50/100CR ScoreRanked #20 because of its Google rating and review volume: 5.0★ from 45 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Patterson, 23 mi away
49/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 19 mi away
48/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 21 mi away
48/100CR ScoreRanked #23 because of its Google rating and availability: 4.8★ from 19 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lodi, 19 mi away
48/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Excavating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brentwood, 24 mi away
48/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 396 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 32 septic service companies
#1 to #25 are shown in full above. Here are #26 to #32, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | United Site Services | 48 | 2.5★ (13) | 22 mi |
| 27 | Thrifty Plumbing | 46 | 5.0★ (11) | 21 mi |
| 28 | Roto-Rooter Plumbing & Water Cleanup | 45 | 3.3★ (6) | 23 mi |
| 29 | White Sewer Services | 43 | 3.7★ (3) | 25 mi |
| 30 | P&L Concrete Products | 42 | 3.5★ (28) | 16 mi |
| 31 | Dutchman Drains & Plumbing | 41 | 5.0★ (7) | 23 mi |
| 32 | West Coast Backhoe, Inc. | 41 | 4.0★ (5) | 20 mi |
Also serving Lathrop
16 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 |
|---|---|---|
| 1st Choice Sewer & Drain | 5.0★ (1) | 18 mi |
| 1st Choice Sewer & Drain | 16 mi | |
| All Valley Septic Service, Inc. | 17 mi | |
| AQUA PRO PLUMBING CONTRACTOR / TRENCHLESS SEWER LINE REPAIR / SLAB LEAK LOCATORS / GAS LINE | 3.0★ (2) | 22 mi |
| Discovery Bay Sewer Services | 19 mi | |
| Fuller Septic Services | In Lathrop | |
| J & G Trap Services | 5.0★ (1) | 20 mi |
| JB Harvesting | 8 mi | |
| Morton Septic Backhoe & Drilling | 10 mi | |
| Mountain Valley Septic | 22 mi | |
| Mr. Rooter Plumbing of San Joaquin County | In Lathrop | |
| RUFF PLUMBING | 5.0★ (2) | 21 mi |
| Short Septic & Drilling Inc | 21 mi | |
| United Rentals - Reliable Onsite Services | 5.0★ (2) | 22 mi |
| Watson Backhoe & Septic Install Services | 5.0★ (2) | 24 mi |
| Zuniga construction and septics llc | In Lathrop |
How we ranked Lathrop septic service companies
We scored 32 Lathrop 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 Lathrop 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 Lathrop: frequently asked questions
Who is the best septic service company in Lathrop?
By CR Score, the highest-ranked septic service company in Lathrop, CA is Roto-Rooter Plumbing & Water Cleanup with a CR Score of 60/100. It has 4.7★ from 1,664 Google reviews. It is open 24/7. French Camp Septic Service (#2) and JC SEWER & DRAIN PLUMBING LIC#845004 (#3) follow. We ranked 32 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Lathrop?
ContractorsRanked ranks 32 septic service companies serving Lathrop, CA. Another 16 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Lathrop are open 24/7?
15 ranked septic service companies in Lathrop post 24/7 hours. The highest-ranked are Roto-Rooter Plumbing & Water Cleanup (#1), French Camp Septic Service (#2) and Parrish & Sons Inc (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Lathrop work on weekends?
22 of 32 ranked septic service companies post Saturday hours and 19 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Plumbing & Water Cleanup (#1), French Camp Septic Service (#2) and JC SEWER & DRAIN PLUMBING LIC#845004 (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Lathrop septic service companies have?
The median Google rating among 32 rated septic service companies in Lathrop is 4.8★, with a median of 24 reviews. Roto-Rooter Plumbing & Water Cleanup has the most, 1,664 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 Lathrop count in this ranking?
Yes, if they are within 25 mi of the Lathrop 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 Lathrop
- November 2026: CR Scores recalculated for 32 septic service companies serving Lathrop.
More septic service companies and Lathrop pages
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