58/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,910 Google reviews, the most in Half Moon Bay.
Best Septic Service Companies in Half Moon Bay, CA (2026)
40 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Half Moon Bay: Caccia Home Services, CR Score 58/100; 4.9★ from 1,910 Google reviews; open 7 days a week.
- 4
Best for emergencies (open 24/7): Hydroworks Plumbing, posts 24/7 hours; ranked #4 of 40.
- 2
Most-reviewed: Wizard Plumbing and Drain, 1,648 Google reviews at 4.8★, the most of 40 ranked after Caccia Home Services; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
40 Half Moon Bay septic service companies are ranked here by CR Score, from ten published factors. 22 are open 24/7, 35 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.9★ across 40 rated businesses.
Top 10 septic service companies in Half Moon Bay at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Caccia Home Services | 58 | 4.9★ (1,910) | Burlingame, 10 mi away | Sat · Sun · Evenings | Overall |
| 2 | Wizard Plumbing and Drain | 57 | 4.8★ (1,648) | San Mateo, 9 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | PICHANGA PUMPING SERVICE LLC | 56 | 4.9★ (70) | Mountain View, 19 mi away | Sat · Sun | — |
| 4 | Hydroworks Plumbing | 56 | 5.0★ (27) | Hayward, 20 mi away | 24/7 | Emergencies |
| 5 | Tremors Plumbing And Sewer Inc. | 55 | 5.0★ (29) | San Mateo, 10 mi away | 24/7 | — |
| 6 | A-1 Septic Tank Service Inc | 54 | 4.4★ (34) | Hayward, 23 mi away | 24/7 | — |
| 7 | Trinity Liquid Waste Services | 54 | 4.9★ (62) | Dublin, 9 mi away | 24/7 | — |
| 8 | GWS Plumbing & Sewer | 54 | 5.0★ (27) | Belmont, 8 mi away | Sat · Sun · Evenings | — |
| 9 | Ace Plumbing & Rooter, Inc. | 54 | 4.9★ (931) | San Francisco, 21 mi away | Sat · Sun · Evenings | — |
| 10 | J&K Emergency Plumbing Services | 54 | 4.9★ (55) | Redwood City, 9 mi away | 24/7 | — |
The 40 best septic service companies in Half Moon Bay, 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 San Mateo, 9 mi away
57/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 1,648 Google reviews.
Based in Mountain View, 19 mi away
56/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Septic system service”.
Based in Hayward, 20 mi away
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Septic system service”.
Based in San Mateo, 10 mi away
55/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 23 mi away
54/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.4★ from 34 Google reviews, listed on Google as “Septic system service”.
Based in Dublin, 9 mi away
54/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 62 Google reviews.
Based in Belmont, 8 mi away
54/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Plumber”.
Based in San Francisco, 21 mi away
54/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 931 Google reviews.
Based in Redwood City, 9 mi away
54/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 55 Google reviews.
Based in Redwood Shores, 9 mi away
54/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Plumber”.
Based in Hayward, 20 mi away
53/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Plumber”.
Based in San Mateo, 10 mi away
53/100CR ScoreRanked #13 because of its Google rating and review volume: 4.6★ from 93 Google reviews.
Based in South San Francisco, 13 mi away
53/100CR ScoreRanked #14 because of its Google rating and review volume: 4.6★ from 119 Google reviews.
Based in San Mateo, 10 mi away
52/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 46 Google reviews, listed on Google as “Plumber”.
Based in Sunnyvale, 23 mi away
52/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 97 Google reviews, listed on Google as “Plumber”.
Based in Sunnyvale, 22 mi away
52/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 137 Google reviews.
Based in San Lorenzo, 21 mi away
52/100CR ScoreRanked #18 because of its Google rating and review volume: 5.0★ from 94 Google reviews.
Based in Cherryland, 6 mi away
52/100CR ScoreRanked #19 because of its Google rating and availability: 4.5★ from 16 Google reviews, open 24/7.
Based in Daly City, 16 mi away
51/100CR ScoreRanked #20 because of its Google rating and review volume: 5.0★ from 486 Google reviews.
Based in San Francisco, 22 mi away
51/100CR ScoreRanked #21 because of its Google rating and review volume: 5.0★ from 74 Google reviews.
Based in San Bruno, 12 mi away
50/100CR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 65 Google reviews.
Based in Redwood Shores, 19 mi away
50/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Plumber”.
Based in Alamo, 22 mi away
50/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.2★ from 24 Google reviews, listed on Google as “Plumber”.
Based in San Francisco, 19 mi away
50/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.0★ from 13 Google reviews, listed on Google as “Plumber”.
All 40 septic service companies
#1 to #25 are shown in full above. Here are #26 to #40, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | United Rentals - Reliable Onsite Services | 50 | 4.9★ (14) | 20 mi |
| 27 | Precision Flow Plumbing - Sewer Line Replacement | 50 | 5.0★ (8) | 22 mi |
| 28 | Rescue Rooter | 50 | 3.7★ (18) | 10 mi |
| 29 | Rooter Hero Plumbing & Air of San Leandro | 49 | 4.8★ (36) | 22 mi |
| 30 | Albion Plumbing Rooter Inc - Plumber in Alameda, CA | 48 | 4.8★ (17) | 22 mi |
| 31 | United Site Services | 48 | 3.1★ (23) | 24 mi |
| 32 | USA Rooter & Plumbing | 48 | 4.3★ (31) | 23 mi |
| 33 | Facilities Plumbing & Drain | 47 | 4.9★ (101) | 17 mi |
| 34 | Total Underground Construction | 47 | 5.0★ (6) | 21 mi |
| 35 | Underground Rooter Sewer and Drains | 47 | 5.0★ (12) | 24 mi |
| 36 | Top Grade Sewer And Plumbing, Inc | 47 | 5.0★ (9) | 22 mi |
| 37 | AquaSaver Water Heaters | 46 | 5.0★ (5) | 23 mi |
| 38 | Pros Plumbing & Rooter | 46 | 4.0★ (7) | 17 mi |
| 39 | JD Services | 46 | 2.9★ (23) | 24 mi |
| 40 | Master Plumbing & Sewer Inc | 45 | 3.2★ (17) | 22 mi |
Also serving Half Moon Bay
6 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 |
|---|---|---|
| Castro Valley's H & R Plumbing - Plumbing Sewer Repair and Installation, Drain Cleaner | 24 mi | |
| Quick Fix Septic | 21 mi | |
| Ring's Bobcat & Drilling Services | 5.0★ (1) | 13 mi |
| SDR Plumbing And Sewer | 5.0★ (1) | 8 mi |
| Sewer Rat Plumbing | 10 mi | |
| Sewer Rat Plumbing, Inc. | 1.0★ (1) | 10 mi |
How we ranked Half Moon Bay septic service companies
We scored 40 Half Moon Bay 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 Half Moon Bay 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 Half Moon Bay: frequently asked questions
Who is the best septic service company in Half Moon Bay?
By CR Score, the highest-ranked septic service company in Half Moon Bay, CA is Caccia Home Services with a CR Score of 58/100. It has 4.9★ from 1,910 Google reviews. It is open 7 days a week. Wizard Plumbing and Drain (#2) and PICHANGA PUMPING SERVICE LLC (#3) follow. We ranked 40 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Half Moon Bay?
ContractorsRanked ranks 40 septic service companies serving Half Moon Bay, CA. Another 6 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Half Moon Bay are open 24/7?
22 ranked septic service companies in Half Moon Bay post 24/7 hours. The highest-ranked are Hydroworks Plumbing (#4), Tremors Plumbing And Sewer Inc. (#5) and A-1 Septic Tank Service Inc (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Half Moon Bay work on weekends?
35 of 40 ranked septic service companies post Saturday hours and 29 post Sunday hours. The highest-ranked open Saturdays are Caccia Home Services (#1), Wizard Plumbing and Drain (#2) and PICHANGA PUMPING SERVICE LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Half Moon Bay septic service companies have?
The median Google rating among 40 rated septic service companies in Half Moon Bay is 4.9★, with a median of 33 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 Half Moon Bay count in this ranking?
Yes, if they are within 25 mi of the Half Moon Bay 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 Half Moon Bay
- November 2026: CR Scores recalculated for 40 septic service companies serving Half Moon Bay.
More septic service companies and Half Moon Bay pages
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