59/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,910 Google reviews, the most in South San Francisco.
Best Septic Service Companies in South San Francisco, CA (2026)
48 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South San Francisco: Caccia Home Services, CR Score 59/100; 4.9★ from 1,910 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Hydroworks Plumbing, posts 24/7 hours; ranked #2 of 48.
- 4
Most-reviewed: Wizard Plumbing and Drain, 1,648 Google reviews at 4.8★, the most of 48 ranked after Caccia Home Services; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
48 South San Francisco septic service companies are ranked here by CR Score, from ten published factors. 25 are open 24/7, 39 open Saturdays and 32 open Sundays, based on posted hours. The median Google rating is 4.9★ across 48 rated businesses.
Top 10 septic service companies in South San Francisco at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Caccia Home Services | 59 | 4.9★ (1,910) | Burlingame, 4 mi away | Sat · Sun · Evenings | Overall |
| 2 | Hydroworks Plumbing | 57 | 5.0★ (27) | Hayward, 16 mi away | 24/7 | Emergencies |
| 3 | Ace Plumbing & Rooter, Inc. | 57 | 4.9★ (931) | San Francisco, 8 mi away | Sat · Sun · Evenings | — |
| 4 | Wizard Plumbing and Drain | 57 | 4.8★ (1,648) | San Mateo, 9 mi away | Sat · Sun · Evenings | Most reviews |
| 5 | In & Out Plumbing and Construction | 56 | 4.6★ (119) | South San Francisco | 24/7 | — |
| 6 | Tremors Plumbing And Sewer Inc. | 55 | 5.0★ (29) | San Mateo, 8 mi away | 24/7 | — |
| 7 | A-1 Septic Tank Service Inc | 55 | 4.4★ (34) | Hayward, 19 mi away | 24/7 | — |
| 8 | PICHANGA PUMPING SERVICE LLC | 55 | 4.9★ (70) | Mountain View, 24 mi away | Sat · Sun | — |
| 9 | All Hayward Plumbing, Drain & Sewer Co. | 55 | 5.0★ (43) | Hayward, 15 mi away | 24/7 | — |
| 10 | Trinity Liquid Waste Services | 55 | 4.9★ (62) | Dublin, 6 mi away | 24/7 | — |
The 48 best septic service companies in South San Francisco, 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 Hayward, 16 mi away
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Septic system service”.
Based in San Francisco, 8 mi away
57/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 931 Google reviews.
Based in San Mateo, 9 mi away
57/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 1,648 Google reviews.
Based in South San Francisco
56/100CR ScoreRanked #5 because of its Google rating and review volume: 4.6★ from 119 Google reviews.
Based in San Mateo, 8 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 19 mi away
55/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.4★ from 34 Google reviews, listed on Google as “Septic system service”.
Based in Mountain View, 24 mi away
55/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Septic system service”.
Based in Hayward, 15 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Plumber”.
Based in Dublin, 6 mi away
55/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 62 Google reviews.
Based in Daly City, 2 mi away
55/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 486 Google reviews.
Based in San Francisco, 9 mi away
54/100CR ScoreRanked #12 because of its Google rating and review volume: 5.0★ from 74 Google reviews.
Based in Redwood Shores, 8 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Plumber”.
Based in San Lorenzo, 14 mi away
54/100CR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 94 Google reviews.
Based in San Francisco, 7 mi away
53/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.0★ from 13 Google reviews, listed on Google as “Plumber”.
Based in San Mateo, 10 mi away
53/100CR ScoreRanked #16 because of its Google rating and review volume: 4.6★ from 93 Google reviews.
Based in San Francisco, 10 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Plumber”.
Based in El Sobrante, 22 mi away
53/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Plumber”.
Based in San Mateo, 7 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 46 Google reviews, listed on Google as “Plumber”.
Based in San Bruno, 2 mi away
53/100CR ScoreRanked #20 because of its Google rating and review volume: 5.0★ from 65 Google reviews.
Based in Alameda, 10 mi away
52/100CR ScoreRanked #21 because of its Google rating and availability: 4.8★ from 36 Google reviews, open 24/7.
Based in Alamo, 14 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.2★ from 24 Google reviews, listed on Google as “Plumber”.
Based in Redwood City, 15 mi away
52/100CR ScoreRanked #23 because of its Google rating and review volume: 4.9★ from 55 Google reviews.
Based in Redwood Shores, 13 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 19 mi away
52/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 98 Google reviews.
All 48 septic service companies
#1 to #25 are shown in full above. Here are #26 to #48, in CR Score order; each links to its profile.
Also serving South San Francisco
14 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 |
|---|---|---|
| American Eagle Plumbing & Construction | 5.0★ (1) | 23 mi |
| Bay Area Restaurant Services LLC | 23 mi | |
| Castro Valley's H & R Plumbing - Plumbing Sewer Repair and Installation, Drain Cleaner | 19 mi | |
| Ernie's Plumbing & Sewer Services | 24 mi | |
| North Bay Septic Services | 5.0★ (1) | 22 mi |
| Quick Fix Septic | 8 mi | |
| Ring's Bobcat & Drilling Services | 5.0★ (1) | 25 mi |
| SDR Plumbing And Sewer | 5.0★ (1) | 10 mi |
| Septic Services in Oakland | 13 mi | |
| Sequoia Septic Tank Services | 22 mi | |
| Sewer & Drain Masters | 20 mi | |
| Sewer Rat Plumbing | 5 mi | |
| Sewer Rat Plumbing, Inc. | 1.0★ (1) | 16 mi |
| Sewerinspections | 24 mi |
How we ranked South San Francisco septic service companies
We scored 48 South San Francisco 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 South San Francisco 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 South San Francisco: frequently asked questions
Who is the best septic service company in South San Francisco?
By CR Score, the highest-ranked septic service company in South San Francisco, CA is Caccia Home Services with a CR Score of 59/100. It has 4.9★ from 1,910 Google reviews. It is open 7 days a week. Hydroworks Plumbing (#2) and Ace Plumbing & Rooter, Inc. (#3) follow. We ranked 48 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in South San Francisco?
ContractorsRanked ranks 48 septic service companies serving South San Francisco, CA. 1 of them is based in South San Francisco; the rest serve it from nearby towns. Another 14 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in South San Francisco are open 24/7?
25 ranked septic service companies in South San Francisco post 24/7 hours. The highest-ranked are Hydroworks Plumbing (#2), In & Out Plumbing and Construction (#5) and Tremors Plumbing And Sewer Inc. (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in South San Francisco work on weekends?
39 of 48 ranked septic service companies post Saturday hours and 32 post Sunday hours. The highest-ranked open Saturdays are Caccia Home Services (#1), Hydroworks Plumbing (#2) and Ace Plumbing & Rooter, Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do South San Francisco septic service companies have?
The median Google rating among 48 rated septic service companies in South San Francisco is 4.9★, with a median of 31 reviews. Caccia Home Services has the most, 1,910 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 South San Francisco count in this ranking?
Yes, if they are within 25 mi of the South San Francisco 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 South San Francisco
- November 2026: CR Scores recalculated for 48 septic service companies serving South San Francisco.
More septic service companies and South San Francisco pages
Septic service companies near South San Francisco
- Septic service companies in San Bruno, CA45 ranked
- Septic service companies in Millbrae, CA45 ranked
- Septic service companies in Visitacion Valley, CA46 ranked
- Septic service companies in Daly City, CA44 ranked
- Septic service companies in Pacifica, CA41 ranked
- Septic service companies in Burlingame, CA45 ranked
- Septic service companies in Hillsborough, CA45 ranked
- Septic service companies in Noe Valley, CA46 ranked
- Septic service companies in Mission District, CA47 ranked
- Septic service companies in San Mateo, CA48 ranked
Other trades in South San Francisco
- Roofers in South San Francisco743 ranked
- Plumbers in South San Francisco599 ranked
- Electricians in South San Francisco408 ranked
- HVAC contractors in South San Francisco417 ranked
- General contractors in South San Francisco897 ranked
- Painters in South San Francisco211 ranked
- Landscapers in South San Francisco128 ranked
- Handymen in South San Francisco106 ranked
- Kitchen remodelers in South San Francisco427 ranked
- Bathroom remodelers in South San Francisco400 ranked
- Flooring contractors in South San Francisco270 ranked
- Tile installers in South San Francisco51 ranked
- Drywall contractors in South San Francisco36 ranked
- Concrete contractors in South San Francisco217 ranked
- Fence contractors in South San Francisco96 ranked
- Deck builders in South San Francisco114 ranked
- Siding contractors in South San Francisco96 ranked
- Window installers in South San Francisco299 ranked
- Gutter installers in South San Francisco165 ranked
- Insulation contractors in South San Francisco86 ranked
- Solar installers in South San Francisco286 ranked
- Garage door repair companies in South San Francisco207 ranked
- Foundation repair companies in South San Francisco124 ranked
- Tree services in South San Francisco188 ranked
- Masonry contractors in South San Francisco108 ranked
- Water damage restoration companies in South San Francisco385 ranked
- Home builders in South San Francisco476 ranked
- Demolition contractors in South San Francisco97 ranked
- Window cleaners in South San Francisco81 ranked
- Pressure washing companies in South San Francisco92 ranked
- Pest control companies in South San Francisco141 ranked
- Paving contractors in South San Francisco125 ranked
- Auto glass repair shops in South San Francisco285 ranked
- Excavating contractors in South San Francisco72 ranked
- Pool builders in South San Francisco189 ranked
- All contractors in South San Francisco