62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 81 Google reviews, the most in Angleton.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Angleton, TX (2026)
20 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Angleton: Shamrock Septic ️ - 24/7 Alvin, Texas, CR Score 62/100; 4.8★ from 81 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Septic Systems By Buck, posts 24/7 hours; ranked #4 of 20.
- 7
Most-reviewed: Environmental Construction Services, 43 Google reviews at 4.8★, the most of 20 ranked after Shamrock Septic ️ - 24/7 Alvin, Texas; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
20 Angleton septic service companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 6 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.5★ across 20 rated businesses.
Top 10 septic service companies in Angleton at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Shamrock Septic ️ - 24/7 Alvin, Texas | 62 | 4.8★ (81) | Alvin, 20 mi away | 24/7 | Overall |
| 2 | Brazoria County Septic Service | 57 | 4.8★ (37) | Freeport, 7 mi away | — | — |
| 3 | Ripple Septic Services, LLC | 56 | 4.3★ (23) | Angleton | — | — |
| 4 | Septic Systems By Buck | 55 | 3.3★ (13) | Lake Jackson, 14 mi away | 24/7 | Emergencies |
| 5 | Big State Plumbing | 55 | 4.0★ (29) | Angleton | 24/7 | — |
| 6 | Coastal Aerobic Systems LLC | 55 | 4.8★ (31) | Lake Jackson, 11 mi away | — | — |
| 7 | Environmental Construction Services | 54 | 4.8★ (43) | Manvel, 21 mi away | — | Most reviews |
| 8 | Clements Plumbing | 53 | 4.6★ (34) | Freeport, 14 mi away | 24/7 | — |
| 9 | CARE Septic & Maintenance | 53 | 5.0★ (7) | Lake Jackson, 12 mi away | — | — |
| 10 | Advanced Aerobic Systems | 53 | 4.8★ (18) | Pearland, 14 mi away | — | — |
The 20 best septic service companies in Angleton, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Freeport, 7 mi away
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Angleton
56/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.3★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Jackson, 14 mi away
55/100CR ScoreRanked #4 because of its Google rating and trade focus: 3.3★ from 13 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Angleton
55/100CR ScoreRanked #5 because of its Google rating and review volume: 4.0★ from 29 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Jackson, 11 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 31 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manvel, 21 mi away
54/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 43 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Freeport, 14 mi away
53/100CR ScoreRanked #8 because of its Google rating and review volume: 4.6★ from 34 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Jackson, 12 mi away
53/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Pearland, 14 mi away
53/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pasadena, 13 mi away
53/100CR ScoreRanked #11 because of its Google rating and trade focus: 3.8★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alvin, 16 mi away
52/100CR ScoreRanked #12 because of its Google rating and trade focus: 3.7★ from 37 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alvin, 24 mi away
52/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.5★ from 37 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Jackson, 14 mi away
51/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Alvin, 24 mi away
51/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.4★ from 29 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Fe, 25 mi away
51/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.3★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#17 Texas Precast
Based in Santa Fe, 22 mi away
49/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#18 Trecon Co Inc.
Based in Pasadena, 24 mi away
49/100CR ScoreRanked #18 because of its Google rating and trade focus: 3.0★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Fe, 24 mi away
44/100CR ScoreRanked #19 because of its Google rating and review volume: 3.3★ from 21 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Fe, 24 mi away
42/100CR ScoreRanked #20 because of its Google rating and review volume: 4.3★ from 11 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Angleton
2 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 |
|---|---|---|
| Affordable septic repair | 5.0★ (2) | 2 mi |
| Ripple Services | 5.0★ (2) | 2 mi |
How we ranked Angleton septic service companies
We scored 20 Angleton 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 Angleton 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 Angleton: frequently asked questions
Who is the best septic service company in Angleton?
By CR Score, the highest-ranked septic service company in Angleton, TX is Shamrock Septic ️ - 24/7 Alvin, Texas with a CR Score of 62/100. It has 4.8★ from 81 Google reviews. It is open 24/7. Brazoria County Septic Service (#2) and Ripple Septic Services, LLC (#3) follow. We ranked 20 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Angleton?
ContractorsRanked ranks 20 septic service companies serving Angleton, TX. 2 of them are based in Angleton; the rest serve it from nearby towns. Another 2 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Angleton are open 24/7?
4 ranked septic service companies in Angleton post 24/7 hours. The highest-ranked are Shamrock Septic ️ - 24/7 Alvin, Texas (#1), Septic Systems By Buck (#4) and Big State Plumbing (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Angleton work on weekends?
6 of 20 ranked septic service companies post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are Shamrock Septic ️ - 24/7 Alvin, Texas (#1), Septic Systems By Buck (#4) and Big State Plumbing (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Angleton septic service companies have?
The median Google rating among 20 rated septic service companies in Angleton is 4.5★, with a median of 26 reviews. Shamrock Septic ️ - 24/7 Alvin, Texas has the most, 81 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 Angleton count in this ranking?
Yes, if they are within 25 mi of the Angleton 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 Angleton
- November 2026: CR Scores recalculated for 20 septic service companies serving Angleton.
More septic service companies and Angleton pages
Septic service companies near Angleton
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