65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 81 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Alvin, TX (2026)
38 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Alvin: Shamrock Septic ️ - 24/7 Alvin, Texas, CR Score 65/100; 4.8★ from 81 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): League City Septic, posts 24/7 hours; ranked #2 of 38.
- 10
Most-reviewed: The Repipe Company a Plumbing & Sewer Drain specialist, 144 Google reviews at 4.7★, the most of 38 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Alvin septic service companies are ranked here by CR Score, from ten published factors. 11 are open 24/7, 21 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.3★ across 38 rated businesses.
Top 10 septic service companies in Alvin at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Shamrock Septic ️ - 24/7 Alvin, Texas | 65 | 4.8★ (81) | Alvin | 24/7 | Overall |
| 2 | League City Septic | 62 | 4.8★ (91) | Houston, 13 mi away | 24/7 | Emergencies |
| 3 | Tideland Grease Trap & Septic Service | 58 | 4.9★ (82) | Santa Fe, 9 mi away | — | — |
| 4 | Hughes Pump Service | 57 | 4.5★ (37) | Alvin | — | — |
| 5 | Environmental Construction Services | 57 | 4.8★ (43) | Manvel, 6 mi away | — | — |
| 6 | Ingram Plumbing Co | 57 | 4.9★ (132) | Webster, 11 mi away | 24/7 | — |
| 7 | Whitt Septic Systems | 56 | 4.4★ (29) | Alvin | — | — |
| 8 | Texas Hydro Jetting & Drain | 56 | 5.0★ (22) | Houston, 23 mi away | 24/7 | — |
| 9 | Liquid Waste Solutions | 56 | 3.9★ (32) | Houston, 18 mi away | 24/7 | — |
| 10 | The Repipe Company a Plumbing & Sewer Drain specialist | 55 | 4.7★ (144) | Pearland, 10 mi away | — | Most reviews |
The 38 best septic service companies in Alvin, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Houston, 13 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 91 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, 9 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alvin
57/100CR ScoreRanked #4 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 Manvel, 6 mi away
57/100CR ScoreRanked #5 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 Webster, 11 mi away
57/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 132 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alvin
56/100CR ScoreRanked #7 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 Houston, 23 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Houston, 18 mi away
56/100CR ScoreRanked #9 because of its Google rating and trade focus: 3.9★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pearland, 10 mi away
55/100CR ScoreRanked #10 because of its Google rating and review volume: 4.7★ from 144 Google reviews, the most in Alvin.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alvin
55/100CR ScoreRanked #11 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 League City, 8 mi away
54/100CR ScoreRanked #12 because of its Google rating and review volume: 5.0★ from 24 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Fe, 9 mi away
54/100CR ScoreRanked #13 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.
#14 Trecon Co Inc.
Based in Pasadena, 3 mi away
53/100CR ScoreRanked #14 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 Pearland, 10 mi away
53/100CR ScoreRanked #15 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.
#16 DH Services
Based in Deer Park, 19 mi away
53/100CR ScoreRanked #16 because of its Google rating and review volume: 4.8★ from 52 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Fe, 10 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#18 Texas Precast
Based in Santa Fe, 5 mi away
53/100CR ScoreRanked #18 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.
Based in Pasadena, 13 mi away
52/100CR ScoreRanked #19 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 Galveston, 17 mi away
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 3.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Webster, 11 mi away
51/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Houston, 25 mi away
51/100CR ScoreRanked #22 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 Dayton, 6 mi away
51/100CR ScoreRanked #23 because of its Google rating and trade focus: 1.6★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#24 Patriot Plumbing
Based in Alvin
51/100CR ScoreRanked #24 because of its Google rating and review volume: 5.0★ from 12 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Houston, 16 mi away
50/100CR ScoreRanked #25 because of its Google rating and trade focus: 3.8★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 38 septic service companies
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Hitchcock Plumbing Sewer Electrical Water Haters & Air Conditioning Repair CO | 49 | 3.9★ (11) | 15 mi |
| 27 | Alternative Plumbing Solutions, LLC | 49 | 3.9★ (48) | In Alvin |
| 28 | United Site Services | 49 | 2.5★ (18) | 19 mi |
| 29 | Quality Plumbing | 49 | 4.0★ (41) | 16 mi |
| 30 | Texas Septic & Sewer | 49 | 3.4★ (23) | 25 mi |
| 31 | South Texas Environmental | 49 | 3.2★ (14) | 23 mi |
| 32 | Big State Plumbing | 48 | 4.0★ (29) | 24 mi |
| 33 | United Rentals - Reliable Onsite Services | 48 | 3.9★ (7) | 20 mi |
| 34 | Puddle Pulse French Drain's & Sewerage Installation | 47 | 5.0★ (5) | 20 mi |
| 35 | HomeField Southwest Houston | 47 | 5.0★ (3) | 24 mi |
| 36 | Keenan Water Well & Septic Systems | 47 | 3.3★ (21) | 10 mi |
| 37 | R&B Aerobic Treatments Systems LLC | 45 | 4.3★ (11) | 12 mi |
| 38 | Backbone Plumbing | 43 | 4.8★ (6) | 14 mi |
Also serving Alvin
7 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) | 21 mi |
| Cosmic Septic | 5.0★ (1) | 19 mi |
| J.Leal Construction Services | 5.0★ (1) | 22 mi |
| Jaxo Septic Tank Pumping | 16 mi | |
| Mr. Rooter Plumbing of Houston West | 5.0★ (1) | 24 mi |
| Ripple Services | 5.0★ (2) | 19 mi |
| USA Houston Septic Service | 16 mi |
How we ranked Alvin septic service companies
We scored 38 Alvin 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 Alvin 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 Alvin: frequently asked questions
Who is the best septic service company in Alvin?
By CR Score, the highest-ranked septic service company in Alvin, TX is Shamrock Septic ️ - 24/7 Alvin, Texas with a CR Score of 65/100. It has 4.8★ from 81 Google reviews. It is open 24/7. League City Septic (#2) and Tideland Grease Trap & Septic Service (#3) follow. We ranked 38 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Alvin?
ContractorsRanked ranks 38 septic service companies serving Alvin, TX. 6 of them are based in Alvin; the rest serve it from nearby towns. Another 7 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Alvin are open 24/7?
11 ranked septic service companies in Alvin post 24/7 hours. The highest-ranked are Shamrock Septic ️ - 24/7 Alvin, Texas (#1), League City Septic (#2) and Ingram Plumbing Co (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Alvin work on weekends?
21 of 38 ranked septic service companies post Saturday hours and 13 post Sunday hours. The highest-ranked open Saturdays are Shamrock Septic ️ - 24/7 Alvin, Texas (#1), League City Septic (#2) and Ingram Plumbing Co (#6). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Alvin septic service companies have?
The median Google rating among 38 rated septic service companies in Alvin is 4.3★, with a median of 22 reviews. The Repipe Company a Plumbing & Sewer Drain specialist has the most, 144 reviews, and ranks #10. 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 Alvin count in this ranking?
Yes, if they are within 25 mi of the Alvin 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 Alvin
- November 2026: CR Scores recalculated for 38 septic service companies serving Alvin.
- November 2026: 1 duplicate listing merged.
More septic service companies and Alvin pages
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