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Best Septic Service Companies in Gardena, CA (2026)

122 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Gardena: ARS/Rescue Rooter Plumbing Sewer Drains, CR Score 61/100; 4.7★ from 649 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Mr. Rooter Plumbing of Long Beach, posts 24/7 hours; ranked #2 of 122.

  3. 11

    Most-reviewed: Western Rooter & Plumbing, 1,562 Google reviews at 4.9★, the most of 122 ranked; ranked #11.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

122 Gardena septic service companies are ranked here by CR Score, from ten published factors. 64 are open 24/7, 105 open Saturdays and 82 open Sundays, based on posted hours. The median Google rating is 4.9★ across 122 rated businesses.

Top 10 septic service companies in Gardena at a glance

Top 10 septic service companies in Gardena at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1ARS/Rescue Rooter Plumbing Sewer Drains614.7★ (649)Costa Mesa, 5 mi away24/7Overall
2Mr. Rooter Plumbing of Long Beach594.9★ (1,140)Long Beach, 9 mi away24/7Emergencies
3Valley Sanitation LLC584.7★ (26)Lancaster, 9 mi away24/7—
4Legacy Sewer and Drain584.9★ (156)Signal Hill, 10 mi away24/7—
5Sewer Inspections & Repairs Inc585.0★ (125)Van Nuys, 11 mi away24/7—
6All in Sanitation | Grease Trap Cleaning | Septic Pumping575.0★ (13)Los Angeles, 11 mi away24/7—
7Fanti Sewer & Drains575.0★ (102)Cerritos, 12 mi away24/7—
8Drainiacs Sewer and Drain574.8★ (295)Whittier, 17 mi away24/7—
9Sewer Pros564.9★ (110)Carson, 7 mi awaySat · Sun—
10Sewer Tap Plumbing & Rooter INC565.0★ (35)Paramount, 7 mi away24/7—

The 122 best septic service companies in Gardena, 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.

  1. Based in Cerritos, 12 mi away

    57/100CR Score

    Ranked #7 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 102 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18000 Studebaker Rd # 700, Cerritos, CA 90703
  2. Based in Carson, 7 mi away

    56/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.9★ from 110 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 110 Google reviews
    Hours
    Mon–Sun 9 AM–5 PM
    Address
    25950 Belle Porte Ave Unit #1, Harbor City, CA 90710
  3. Based in Los Angeles, 11 mi away

    56/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Septic system service”.

    • 4.8★ from 17 Google reviews
    Hours
    Mon–Wed 8 AM–7 PM · Thu 8 AM–3 PM · Fri–Sun 8 AM–7 PM
  4. Based in Sherman Oaks, 19 mi away

    55/100CR Score

    Ranked #19 because of its Google rating and review volume: 4.9★ from 479 Google reviews.

    • 4.9★ from 479 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13547 Ventura Blvd Unit 607, Sherman Oaks, CA 91423
  5. Based in Rancho Palos Verdes, 9 mi away

    55/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 24 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    20 Surrey Ln, Rancho Palos Verdes, CA 90275

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 122 ranked septic service companies here; the rest are on their profiles.

septic service companies in Gardena, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26United Site Services544.0★ (4)In Gardena
27Zoom Drain Los Angeles545.0★ (27)3 mi
28Just Sewers, INC545.0★ (11)7 mi
29Mr. Rooter Plumbing of Orange County544.9★ (560)24 mi
30Sewer Heroes Inc Glendale Plumbing & Sewer Services544.9★ (50)17 mi
31Charlie's Sewer & Drain544.9★ (83)21 mi
32High Speed Rooter & Plumbing544.8★ (362)20 mi
33VK Plumbing And Rooter Service545.0★ (51)9 mi
34SoCal Sewer & Water544.8★ (16)10 mi
35A-1 Total Service Plumbing544.9★ (661)21 mi
36Petes Septic Pumping545.0★ (6)7 mi
37Mr. Rooter Plumbing of South San Gabriel534.8★ (123)14 mi
38A-1 Sewer Pros535.0★ (40)13 mi
39A-1 Sewer Pros535.0★ (28)10 mi
40Team Rooter Plumbing534.7★ (665)24 mi
41United Rentals - Reliable Onsite Services534.6★ (29)8 mi
42Septic Tank Pumping USA534.4★ (12)23 mi
43Rapid Plumbing533.9★ (107)In Gardena
44Sewer Heroes Inc Sherman Oaks Plumbing & Sewer Services535.0★ (33)20 mi
45Harry's Drain & Sewer Plumber Los Alamitos534.8★ (22)15 mi
46The Sewer Company534.9★ (215)20 mi
47Swish Sewer & Drains535.0★ (41)22 mi
48Craftsman Sewers535.0★ (19)10 mi
49FastFlow Sewer & Drains525.0★ (40)23 mi
50Trenchless Sewer Plumbing Inc.524.5★ (48)18 mi

Also serving Gardena

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.

How we ranked Gardena septic service companies

We scored 122 Gardena 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Gardena data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Septic service companies in Gardena: frequently asked questions

Who is the best septic service company in Gardena?

By CR Score, the highest-ranked septic service company in Gardena, CA is ARS/Rescue Rooter Plumbing Sewer Drains with a CR Score of 61/100. It has 4.7★ from 649 Google reviews. It is open 24/7. Mr. Rooter Plumbing of Long Beach (#2) and Valley Sanitation LLC (#3) follow. We ranked 122 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Gardena?

ContractorsRanked ranks 122 septic service companies serving Gardena, CA. 3 of them are based in Gardena; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Gardena are open 24/7?

64 ranked septic service companies in Gardena post 24/7 hours. The highest-ranked are ARS/Rescue Rooter Plumbing Sewer Drains (#1), Mr. Rooter Plumbing of Long Beach (#2) and Valley Sanitation LLC (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Gardena work on weekends?

105 of 122 ranked septic service companies post Saturday hours and 82 post Sunday hours. The highest-ranked open Saturdays are ARS/Rescue Rooter Plumbing Sewer Drains (#1), Mr. Rooter Plumbing of Long Beach (#2) and Valley Sanitation LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Gardena septic service companies have?

The median Google rating among 122 rated septic service companies in Gardena is 4.9★, with a median of 27 reviews. Western Rooter & Plumbing has the most, 1,562 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 Gardena count in this ranking?

Yes, if they are within 25 mi of the Gardena 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 Gardena

  1. November 2026: CR Scores recalculated for 122 septic service companies serving Gardena.

More septic service companies and Gardena pages

Other trades in Gardena