55 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Marcos: All-American Septic Pumping & Services, Inc, CR Score 66/100; 5.0★ from 909 Google reviews; open 24/7.
Best for emergencies (open 24/7): Roto-Rooter Plumbing & Water Cleanup, posts 24/7 hours; ranked #3 of 55.
Most-reviewed: Roto-Rooter Plumbing & Water Cleanup, 1,158 Google reviews at 4.4★, the most of 55 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
55 San Marcos septic service companies are ranked here by CR Score, from ten published factors. 24 are open 24/7, 43 open Saturdays and 30 open Sundays, based on posted hours. The median Google rating is 4.9★ across 55 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | All-American Septic Pumping & Services, Inc | 66 | 5.0★ (909) | Valley Center, 10 mi away | 24/7 | Overall |
| 2 | USA Septic | 60 | 4.8★ (66) | Escondido, 4 mi away | Sat · Sun · Evenings | — |
| 3 | Roto-Rooter Plumbing & Water Cleanup | 59 | 4.9★ (352) | Escondido, 4 mi away | 24/7 | Emergencies |
| 4 | John Padilla Plumbing, Sewer and Drains | 58 | 4.8★ (310) | Carlsbad, 6 mi away | Sat · Sun · Evenings | — |
| 5 | Roto-Rooter Plumbing & Water Cleanup | 58 | 4.4★ (1,158) | Vista, 4 mi away | 24/7 | Most reviews |
| 6 | John Padilla Plumbing, Sewer and Drains | 58 | 4.8★ (886) | San Diego, 23 mi away | 24/7 | — |
| 7 | Aqua Bear Plumbing & Drain | 57 | 5.0★ (181) | Vista, 6 mi away | 24/7 | — |
| 8 | Abbott Septic Service | 57 | 3.2★ (10) | San Marcos | 24/7 | — |
| 9 | Roto-Rooter Sewer & Drain Cleaning Service | 57 | 4.5★ (94) | Escondido, 4 mi away | 24/7 | — |
| 10 | Zoom Drain SD North County | 56 | 5.0★ (161) | Escondido, 4 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in San Marcos
Based in Valley Center, 10 mi away
Ranked #1 because of its Google rating and trade focus: 5.0★ from 909 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Escondido, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 66 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Escondido, 4 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 352 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Carlsbad, 6 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 310 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vista, 4 mi away
Ranked #5 because of its Google rating and review volume: 4.4★ from 1,158 Google reviews, the most in San Marcos.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Diego, 23 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 886 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vista, 6 mi away
Ranked #7 because of its Google rating and review volume: 5.0★ from 181 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Marcos
Ranked #8 because of its Google rating and trade focus: 3.2★ from 10 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Escondido, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.5★ from 94 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Escondido, 4 mi away
Ranked #10 because of its Google rating and review volume: 5.0★ from 161 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Diego, 24 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 42 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Escondido, 5 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Temecula, 21 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 26 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Marcos
Ranked #14 because of its Google rating and trade focus: 3.9★ 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 San Diego, 21 mi away
Ranked #15 because of its Google rating and trade focus: 4.2★ from 42 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vista, 8 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Diego, 23 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ 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 Temecula, 6 mi away
Ranked #18 because of its Google rating and trade focus: 4.2★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Diego, 2 mi away
Ranked #19 because of its Google rating and trade focus: 4.3★ 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 Escondido, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ 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 San Diego, 21 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Marcos
Ranked #22 because of its Google rating and availability: 4.6★ from 21 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Diego, 13 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oceanside, 21 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Bonita, 22 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 55 ranked septic service companies here; the rest are on their profiles.
20 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 |
|---|---|---|
| All Pro Sewer & Drain | 5.0★ (2) | 24 mi |
| American Construction & Septic Inc. | 3.0★ (2) | 13 mi |
| American Plumbing and Drains | 2.0★ (1) | 22 mi |
| American Septic | 9 mi | |
| Daisy Drilling | 7 mi | |
| Earth Care Septic | 5.0★ (2) | 15 mi |
| Easy Flow Sewer & Drain - Poway | 15 mi | |
| Hillside Excavating Inc | 16 mi | |
| Honey Bee Septic Service | 5.0★ (1) | 10 mi |
| J B Septic Systems | 4 mi | |
| Jim's Apollo Septic | 5.0★ (2) | 15 mi |
| Luke Ostrander General Engineering Inc | 21 mi | |
| Mr Septic | 19 mi | |
| Resurrection Plumbing La Jolla | 5.0★ (2) | 21 mi |
| Resurrection Plumbing Poway | 14 mi | |
| Roto-Rooter Plumbing & Water Cleanup | 5.0★ (2) | 17 mi |
| Sewer Stormers | 5.0★ (1) | 4 mi |
| Sunland Septic | 19 mi | |
| United Rentals - Reliable Onsite Services | 5.0★ (2) | 4 mi |
| United Site Services | 3.0★ (2) | 23 mi |
We scored 55 San Marcos 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 San Marcos 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 |