64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 91 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in South Houston, TX (2026)
59 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South Houston: League City Septic, CR Score 64/100; 4.8★ from 91 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Shamrock Septic ️ - 24/7 Alvin, Texas, posts 24/7 hours; ranked #3 of 59.
- 2
Most-reviewed: Las Haciendas Design & Engineering, LLC (Planos, Permisos, Plans, Permits), 202 Google reviews at 4.8★, the most of 59 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
59 South Houston septic service companies are ranked here by CR Score, from ten published factors. 20 are open 24/7, 36 open Saturdays and 24 open Sundays, based on posted hours. The median Google rating is 4.6★ across 59 rated businesses.
Top 10 septic service companies in South Houston at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | League City Septic | 64 | 4.8★ (91) | Houston, 4 mi away | 24/7 | Overall |
| 2 | Las Haciendas Design & Engineering, LLC (Planos, Permisos, Plans, Permits) | 62 | 4.8★ (202) | Houston, 14 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Shamrock Septic ️ - 24/7 Alvin, Texas | 61 | 4.8★ (81) | Alvin, 16 mi away | 24/7 | Emergencies |
| 4 | Affordable Environmental Services | 60 | 5.0★ (56) | Houston, 20 mi away | 24/7 | — |
| 5 | Texas Hydro Jetting & Drain | 58 | 5.0★ (22) | Houston, 17 mi away | 24/7 | — |
| 6 | Liquid Waste Solutions | 58 | 3.9★ (32) | Houston, 10 mi away | 24/7 | — |
| 7 | Ameri-Tex Septic and Grease Service | 57 | 5.0★ (15) | Houston, 13 mi away | 24/7 | — |
| 8 | Wastewater Transport Services | 57 | 4.1★ (20) | Houston, 10 mi away | 24/7 | — |
| 9 | JS Grease Services | 57 | 5.0★ (14) | Houston, 14 mi away | 24/7 | — |
| 10 | Acacias Plumbing | Emergency Plumber, Drain Cleaning, Sewer Repair and Water Heater Installation Houston, TX | 57 | 4.8★ (62) | Houston, 14 mi away | 24/7 | — |
The 59 best septic service companies in South Houston, 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 Houston, 14 mi away
62/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 202 Google reviews, the most in South Houston.
Based in Alvin, 16 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 81 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 20 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 17 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 10 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 3.9★ from 32 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 13 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 10 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.1★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 14 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 14 mi away
57/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 62 Google reviews.
#11 DH Services
Based in Deer Park, 3 mi away
57/100CR ScoreRanked #11 because of its Google rating and review volume: 4.8★ from 52 Google reviews.
Based in Houston, 16 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.5★ from 22 Google reviews, listed on Google as “Septic system service”.
Based in Webster, 9 mi away
57/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 132 Google reviews.
Based in Pearland, 8 mi away
55/100CR ScoreRanked #14 because of its Google rating and review volume: 4.7★ from 144 Google reviews.
Based in Santa Fe, 21 mi away
54/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “Septic system service”.
Based in Manvel, 15 mi away
54/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 43 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 14 mi away
54/100CR ScoreRanked #17 because of its Google rating and trade focus: 2.9★ from 21 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 13 mi away
54/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.3★ from 23 Google reviews, listed on Google as “Septic system service”.
Based in Atascocita, 23 mi away
54/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Plumber”.
Based in The Woodlands, 23 mi away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Septic system service”.
Based in Alvin, 13 mi away
54/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.5★ from 37 Google reviews, listed on Google as “Septic system service”.
Based in Sugar Land, 25 mi away
53/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Septic system service”.
#23 Sewer Squad
Based in Houston, 22 mi away
53/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 17 mi away
53/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.1★ from 12 Google reviews, listed on Google as “Septic system service”.
Based in Houston, 3 mi away
53/100CR ScoreRanked #25 because of its Google rating and trade focus: 2.5★ from 18 Google reviews, listed on Google as “Septic system service”.
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 59 ranked septic service companies here; the rest are on their profiles.
Also serving South Houston
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 |
|---|---|---|
| A-VAC Septic Service | 5.0★ (1) | 18 mi |
| Cosmic Septic | 5.0★ (1) | 3 mi |
| ETs Septic Maintenance LLC | 20 mi | |
| G.I Environmental Vacuum Service - Septic Cleaning & Pumping Services | 3.0★ (2) | 16 mi |
| H J Services LLC | 21 mi | |
| Hydro Septic Sanitation Solutions | 18 mi | |
| J B Paisanos Septic Tank | 4.0★ (1) | 16 mi |
| J.Leal Construction Services | 5.0★ (1) | 6 mi |
| Jaxo Septic Tank Pumping | 3 mi | |
| Johnson's Septic Design | 3.0★ (2) | 20 mi |
| Mr. Rooter Plumbing of Houston West | 5.0★ (1) | 15 mi |
| Round Services | 20 mi | |
| Septic Service | 5.0★ (1) | 17 mi |
| Sewer Repair Service Houston | 17 mi | |
| Surface Septic Systems | 5.0★ (1) | 24 mi |
| Texans #1 Septic and Grease Service | 13 mi | |
| Texas Pride Septic | 2.5★ (2) | 23 mi |
| Texas Septic Design | 5.0★ (2) | 25 mi |
| Texas Septic Solutions | 18 mi | |
| USA Houston Septic Service | 16 mi |
How we ranked South Houston septic service companies
We scored 59 South Houston 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 Houston 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 Houston: frequently asked questions
Who is the best septic service company in South Houston?
By CR Score, the highest-ranked septic service company in South Houston, TX is League City Septic with a CR Score of 64/100. It has 4.8★ from 91 Google reviews. It is open 24/7. Las Haciendas Design & Engineering, LLC (Planos, Permisos, Plans, Permits) (#2) and Shamrock Septic ️ - 24/7 Alvin, Texas (#3) follow. We ranked 59 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in South Houston?
ContractorsRanked ranks 59 septic service companies serving South Houston, TX. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in South Houston are open 24/7?
20 ranked septic service companies in South Houston post 24/7 hours. The highest-ranked are League City Septic (#1), Shamrock Septic ️ - 24/7 Alvin, Texas (#3) and Affordable Environmental Services (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in South Houston work on weekends?
36 of 59 ranked septic service companies post Saturday hours and 24 post Sunday hours. The highest-ranked open Saturdays are League City Septic (#1), Las Haciendas Design & Engineering, LLC (Planos, Permisos, Plans, Permits) (#2) and Shamrock Septic ️ - 24/7 Alvin, Texas (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do South Houston septic service companies have?
The median Google rating among 59 rated septic service companies in South Houston is 4.6★, with a median of 20 reviews. Las Haciendas Design & Engineering, LLC (Planos, Permisos, Plans, Permits) has the most, 202 reviews, and ranks #2. 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 Houston count in this ranking?
Yes, if they are within 25 mi of the South Houston 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 Houston
- November 2026: CR Scores recalculated for 59 septic service companies serving South Houston.
- November 2026: 1 duplicate listing merged.
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