60/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 80 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Rossmoor, CA (2026)
110 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rossmoor: Applied Plumbing and Rooter, Inc, CR Score 60/100; 5.0★ from 80 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Long Beach, posts 24/7 hours; ranked #2 of 110.
- 11
Most-reviewed: Pristine Plumbing Inc, 1,912 Google reviews at 4.9★, the most of 110 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
110 Rossmoor septic service companies are ranked here by CR Score, from ten published factors. 52 are open 24/7, 90 open Saturdays and 69 open Sundays, based on posted hours. The median Google rating is 5.0★ across 110 rated businesses.
Top 10 septic service companies in Rossmoor at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Applied Plumbing and Rooter, Inc | 60 | 5.0★ (80) | Irvine, 14 mi away | 24/7 | Overall |
| 2 | Mr. Rooter Plumbing of Long Beach | 59 | 4.9★ (1,140) | Long Beach, 8 mi away | 24/7 | Emergencies |
| 3 | Legacy Sewer and Drain | 59 | 4.9★ (156) | Signal Hill, 5 mi away | 24/7 | — |
| 4 | Fanti Sewer & Drains | 58 | 5.0★ (102) | Cerritos, 6 mi away | 24/7 | — |
| 5 | Jetters 'N' Drains Sewer & Pipe Lining Experts | 58 | 5.0★ (205) | Anaheim, 12 mi away | 24/7 | — |
| 6 | Drainiacs Sewer and Drain | 58 | 4.8★ (295) | Whittier, 12 mi away | 24/7 | — |
| 7 | Dynamic drain plumbing | 58 | 5.0★ (14) | Los Angeles, 4 mi away | Sat · Sun · Evenings | — |
| 8 | ARS/Rescue Rooter Plumbing Sewer Drains | 57 | 4.7★ (649) | Costa Mesa, 18 mi away | 24/7 | — |
| 9 | Mr. Rooter Plumbing of Orange County | 57 | 4.9★ (560) | Anaheim, 12 mi away | 24/7 | — |
| 10 | I Love Sewers Rooter And Plumbing Sewer Specialties Inc | 57 | 4.9★ (200) | Hacienda Heights, 16 mi away | 24/7 | — |
The 110 best septic service companies in Rossmoor, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Long Beach, 8 mi away
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 1,140 Google reviews.
Based in Signal Hill, 5 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Plumber”.
Based in Cerritos, 6 mi away
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “Plumber”.
Based in Anaheim, 12 mi away
58/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 205 Google reviews.
Based in Whittier, 12 mi away
58/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 295 Google reviews.
Based in Los Angeles, 4 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Septic system service”.
Based in Costa Mesa, 18 mi away
57/100CR ScoreRanked #8 because of its Google rating and review volume: 4.7★ from 649 Google reviews.
Based in Anaheim, 12 mi away
57/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 560 Google reviews.
Based in Hacienda Heights, 16 mi away
57/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 200 Google reviews.
Based in Irvine, 22 mi away
56/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 1,912 Google reviews, the most in Rossmoor.
Based in Los Alamitos, 2 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “HVAC contractor”.
Based in Lakewood, 5 mi away
56/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 321 Google reviews.
Based in Paramount, 9 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Plumber”.
Based in Garden Grove, 3 mi away
56/100CR ScoreRanked #15 because of its Google rating and review volume: 4.9★ from 64 Google reviews.
Based in Lancaster, 20 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Septic system service”.
Based in La Habra, 12 mi away
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 661 Google reviews.
Based in Arcadia, 25 mi away
55/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 1,562 Google reviews.
Based in Avocado Heights, 21 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Plumber”.
Based in Los Angeles, 4 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 36 Google reviews, listed on Google as “Septic system service”.
#21 Zoom Drain
Based in Irvine, 23 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 5.0★ from 649 Google reviews.
Based in Bellflower, 6 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Plumber”.
Based in Fullerton, 11 mi away
55/100CR ScoreRanked #23 because of its Google rating and review volume: 4.7★ from 752 Google reviews.
#24 Sewer Pros
Based in Carson, 12 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 110 Google reviews, listed on Google as “Plumber”.
Based in Los Angeles, 21 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.
Septic service companies ranked #26 to #50
#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 110 ranked septic service companies here; the rest are on their profiles.
Also serving Rossmoor
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 |
|---|---|---|
| Abel Real Plumbing | 5.0★ (1) | In Rossmoor |
| All Around Underground Contractors, Inc | 5.0★ (2) | 13 mi |
| Coblentz Plumbing & Sewer Contractors | 5.0★ (1) | 23 mi |
| Dustin Plumbing, Drain & Sewer | 1.0★ (1) | 4 mi |
| Elite Rooter Los Angeles | 5.0★ (1) | 25 mi |
| Epd Consultants, Inc | 5.0★ (1) | 12 mi |
| GLPS Plumbing & Mechanical Srvs. | 5.0★ (1) | 20 mi |
| Hector TM Plumbing - Sewer Line Replacement, Water Heater Repair, Sewer Service & Plumbing Contractor | 5.0★ (1) | 24 mi |
| HUTCH & SON'S Rooter | 5.0★ (2) | 25 mi |
| Los Angeles Septic Service & Drain Clean | 1.0★ (1) | 24 mi |
| Mobile Harbor Services | 5.0★ (1) | 17 mi |
| Outlaws Septic Pumping | 5.0★ (1) | 12 mi |
| Plumbing Center Bonded Sewer Contractor | 5.0★ (1) | 25 mi |
| Sewer King | 5.0★ (1) | 12 mi |
| SewerConnect Co. | 5.0★ (1) | 25 mi |
| Socal Sewer & Plumbing Contractors Inc | 5.0★ (1) | 12 mi |
| The Plumbing & Sewer Surgeon | 2 mi | |
| Tony's Rooter Service Sewer and Drain Paramedics | 5.0★ (1) | 22 mi |
| United Site Services | 5.0★ (1) | 25 mi |
| Xtreme Sewer and Drains | 5.0★ (1) | 20 mi |
How we ranked Rossmoor septic service companies
We scored 110 Rossmoor 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 Rossmoor 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 Rossmoor: frequently asked questions
Who is the best septic service company in Rossmoor?
By CR Score, the highest-ranked septic service company in Rossmoor, CA is Applied Plumbing and Rooter, Inc with a CR Score of 60/100. It has 5.0★ from 80 Google reviews. It is open 24/7. Mr. Rooter Plumbing of Long Beach (#2) and Legacy Sewer and Drain (#3) follow. We ranked 110 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Rossmoor?
ContractorsRanked ranks 110 septic service companies serving Rossmoor, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Rossmoor are open 24/7?
52 ranked septic service companies in Rossmoor post 24/7 hours. The highest-ranked are Applied Plumbing and Rooter, Inc (#1), Mr. Rooter Plumbing of Long Beach (#2) and Legacy Sewer and Drain (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Rossmoor work on weekends?
90 of 110 ranked septic service companies post Saturday hours and 69 post Sunday hours. The highest-ranked open Saturdays are Applied Plumbing and Rooter, Inc (#1), Mr. Rooter Plumbing of Long Beach (#2) and Legacy Sewer and Drain (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Rossmoor septic service companies have?
The median Google rating among 110 rated septic service companies in Rossmoor is 5.0★, with a median of 22 reviews. Pristine Plumbing Inc has the most, 1,912 reviews, and ranks #11. 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 Rossmoor count in this ranking?
Yes, if they are within 25 mi of the Rossmoor 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 Rossmoor
- November 2026: CR Scores recalculated for 110 septic service companies serving Rossmoor.
- November 2026: 1 duplicate listing merged.
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