60/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 444 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Koreatown, CA (2026)
141 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Koreatown: Sewer Man Septic Tank Pumping, CR Score 60/100; 4.8★ from 444 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Valley Sanitation LLC, posts 24/7 hours; ranked #2 of 141.
- 8
Most-reviewed: Western Rooter & Plumbing, 1,562 Google reviews at 4.9★, the most of 141 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
141 Koreatown septic service companies are ranked here by CR Score, from ten published factors. 72 are open 24/7, 121 open Saturdays and 92 open Sundays, based on posted hours. The median Google rating is 4.9★ across 141 rated businesses.
Top 10 septic service companies in Koreatown at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sewer Man Septic Tank Pumping | 60 | 4.8★ (444) | Los Angeles, 21 mi away | 24/7 | Overall |
| 2 | Valley Sanitation LLC | 60 | 4.7★ (26) | Lancaster, 3 mi away | 24/7 | Emergencies |
| 3 | All in Sanitation | Grease Trap Cleaning | Septic Pumping | 59 | 5.0★ (13) | Los Angeles, 3 mi away | 24/7 | — |
| 4 | Sewer Inspections & Repairs Inc | 59 | 5.0★ (125) | Van Nuys, 6 mi away | 24/7 | — |
| 5 | ARS/Rescue Rooter Plumbing Sewer Drains | 58 | 4.7★ (649) | Costa Mesa, 15 mi away | 24/7 | — |
| 6 | THE DRAIN CO. | 58 | 4.9★ (434) | North Hills, 7 mi away | 24/7 | — |
| 7 | Mr. Rooter Plumbing of Long Beach | 58 | 4.9★ (1,140) | Long Beach, 15 mi away | 24/7 | — |
| 8 | Western Rooter & Plumbing | 58 | 4.9★ (1,562) | Arcadia, 17 mi away | 24/7 | Most reviews |
| 9 | Red Hat Plumbing | 57 | 4.9★ (479) | Sherman Oaks, 10 mi away | 24/7 | — |
| 10 | Sewer Kingz Plumbing & Rooter | 57 | 5.0★ (33) | Monrovia, 17 mi away | 24/7 | — |
The 141 best septic service companies in Koreatown, 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 Lancaster, 3 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Septic system service”.
Based in Los Angeles, 3 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.
Based in Van Nuys, 6 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 125 Google reviews, listed on Google as “Plumber”.
Based in Costa Mesa, 15 mi away
58/100CR ScoreRanked #5 because of its Google rating and review volume: 4.7★ from 649 Google reviews.
Based in North Hills, 7 mi away
58/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 434 Google reviews.
Based in Long Beach, 15 mi away
58/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 1,140 Google reviews.
Based in Arcadia, 17 mi away
58/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 1,562 Google reviews, the most in Koreatown.
Based in Sherman Oaks, 10 mi away
57/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 479 Google reviews.
Based in Monrovia, 17 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Septic system service”.
Based in Burbank, 9 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Plumber”.
Based in Glendale, 6 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 50 Google reviews, listed on Google as “Plumber”.
#13 Steamora CA
Based in Los Angeles, 7 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Septic system service”.
Based in Whittier, 18 mi away
57/100CR ScoreRanked #14 because of its Google rating and review volume: 4.8★ from 295 Google reviews.
Based in North Hills, 12 mi away
56/100CR ScoreRanked #15 because of its Google rating and review volume: 4.7★ from 665 Google reviews.
Based in Los Angeles, 7 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “Septic system service”.
Based in La Cañada Flintridge, 12 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.4★ from 12 Google reviews, listed on Google as “Septic system service”.
Based in Hacienda Heights, 20 mi away
56/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 200 Google reviews.
Based in Los Angeles, 22 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Septic system service”.
Based in North Hills, 21 mi away
56/100CR ScoreRanked #20 because of its Google rating and review volume: 4.8★ from 1,341 Google reviews.
Based in Signal Hill, 19 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Plumber”.
Based in Cerritos, 18 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “Plumber”.
Based in Burbank, 11 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Plumber”.
Based in Pasadena, 11 mi away
55/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 215 Google reviews.
Based in El Monte, 15 mi away
55/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 362 Google reviews.
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 141 ranked septic service companies here; the rest are on their profiles.
Also serving Koreatown
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 |
|---|---|---|
| Anytime plumbing and sewer | 5.0★ (1) | 7 mi |
| Burbank Sewer Srevices | 5.0★ (2) | 9 mi |
| Coblentz Plumbing & Sewer Contractors | 5.0★ (1) | 5 mi |
| Deluxe Rooter Sewer & Drain | 5.0★ (2) | 16 mi |
| Elite Rooter Los Angeles | 5.0★ (1) | 7 mi |
| Epd Consultants, Inc | 5.0★ (1) | 15 mi |
| GLPS Plumbing & Mechanical Srvs. | 5.0★ (1) | 17 mi |
| Golden State Plumbing, Inc. | 5.0★ (2) | 17 mi |
| Hector TM Plumbing - Sewer Line Replacement, Water Heater Repair, Sewer Service & Plumbing Contractor | 5.0★ (1) | 7 mi |
| HUTCH & SON'S Rooter | 5.0★ (2) | 8 mi |
| Los Angeles Septic Service & Drain Clean | 1.0★ (1) | 3 mi |
| Plumber Pasadena Sewer Cleaning | 5.0★ (1) | 12 mi |
| Plumbing Center Bonded Sewer Contractor | 5.0★ (1) | 7 mi |
| Reliant Septic Pumping | 1.0★ (1) | 3 mi |
| SEWER CAMERA INSPECTION | 5.0★ (1) | 7 mi |
| Sewer Flow Plumbing | 1.0★ (1) | 11 mi |
| Sewer Line Video Inspection Company Inc | 5.0★ (2) | 24 mi |
| SewerConnect Co. | 5.0★ (1) | 7 mi |
| Socal Sewer & Plumbing Contractors Inc | 5.0★ (1) | In Koreatown |
| Topanga Soils and Septic | 5.0★ (1) | 16 mi |
How we ranked Koreatown septic service companies
We scored 141 Koreatown 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 Koreatown 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 Koreatown: frequently asked questions
Who is the best septic service company in Koreatown?
By CR Score, the highest-ranked septic service company in Koreatown, CA is Sewer Man Septic Tank Pumping with a CR Score of 60/100. It has 4.8★ from 444 Google reviews. It is open 24/7. Valley Sanitation LLC (#2) and All in Sanitation | Grease Trap Cleaning | Septic Pumping (#3) follow. We ranked 141 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Koreatown?
ContractorsRanked ranks 141 septic service companies serving Koreatown, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Koreatown are open 24/7?
72 ranked septic service companies in Koreatown post 24/7 hours. The highest-ranked are Sewer Man Septic Tank Pumping (#1), Valley Sanitation LLC (#2) and All in Sanitation | Grease Trap Cleaning | Septic Pumping (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Koreatown work on weekends?
121 of 141 ranked septic service companies post Saturday hours and 92 post Sunday hours. The highest-ranked open Saturdays are Sewer Man Septic Tank Pumping (#1), Valley Sanitation LLC (#2) and All in Sanitation | Grease Trap Cleaning | Septic Pumping (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Koreatown septic service companies have?
The median Google rating among 141 rated septic service companies in Koreatown is 4.9★, with a median of 26 reviews. Western Rooter & Plumbing has the most, 1,562 reviews, and ranks #8. 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 Koreatown count in this ranking?
Yes, if they are within 25 mi of the Koreatown 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 Koreatown
- November 2026: CR Scores recalculated for 141 septic service companies serving Koreatown.
More septic service companies and Koreatown pages
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Other trades in Koreatown
- Roofers in Koreatown2109 ranked
- Plumbers in Koreatown1876 ranked
- Electricians in Koreatown1292 ranked
- HVAC contractors in Koreatown1900 ranked
- General contractors in Koreatown2251 ranked
- Painters in Koreatown472 ranked
- Landscapers in Koreatown307 ranked
- Handymen in Koreatown331 ranked
- Kitchen remodelers in Koreatown1157 ranked
- Bathroom remodelers in Koreatown1102 ranked
- Flooring contractors in Koreatown710 ranked
- Tile installers in Koreatown181 ranked
- Drywall contractors in Koreatown47 ranked
- Concrete contractors in Koreatown480 ranked
- Fence contractors in Koreatown433 ranked
- Deck builders in Koreatown203 ranked
- Siding contractors in Koreatown110 ranked
- Window installers in Koreatown683 ranked
- Gutter installers in Koreatown291 ranked
- Insulation contractors in Koreatown301 ranked
- Solar installers in Koreatown649 ranked
- Garage door repair companies in Koreatown458 ranked
- Foundation repair companies in Koreatown249 ranked
- Tree services in Koreatown342 ranked
- Masonry contractors in Koreatown263 ranked
- Water damage restoration companies in Koreatown1231 ranked
- Home builders in Koreatown829 ranked
- Demolition contractors in Koreatown171 ranked
- Window cleaners in Koreatown208 ranked
- Pressure washing companies in Koreatown208 ranked
- Pest control companies in Koreatown601 ranked
- Paving contractors in Koreatown283 ranked
- Auto glass repair shops in Koreatown546 ranked
- Excavating contractors in Koreatown69 ranked
- Pool builders in Koreatown743 ranked
- All contractors in Koreatown