Ranked #1 in Allison Park
Based in Pittsburgh, 12 mi away
60/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 480 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Allison Park, PA (2026)
28 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Allison Park: Sewer Flow - Pittsburgh Sewer & Drain Specialists And Plumbing, CR Score 60/100; 4.9★ from 480 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Greater Pittsburgh Plumbing, posts 24/7 hours; ranked #2 of 28.
- 2
Most-reviewed: Greater Pittsburgh Plumbing, 1,123 Google reviews at 4.7★, the most of 28 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
28 Allison Park septic service companies are ranked here by CR Score, from ten published factors. 14 are open 24/7, 19 open Saturdays and 17 open Sundays, based on posted hours. The median Google rating is 4.7★ across 28 rated businesses.
Top 10 septic service companies in Allison Park at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sewer Flow - Pittsburgh Sewer & Drain Specialists And Plumbing | 60 | 4.9★ (480) | Pittsburgh, 12 mi away | 24/7 | Overall |
| 2 | Greater Pittsburgh Plumbing | 59 | 4.7★ (1,123) | Franklin Park, 6 mi away | 24/7 | Emergencies, Most reviews |
| 3 | DR Plumbing and Drain Cleaning LLC - Sewer Line & Plumbing Repair | 59 | 5.0★ (165) | Pittsburgh, 9 mi away | 24/7 | — |
| 4 | Metz Plumbing & Sewer Lining LLC | 58 | 4.9★ (337) | Baldwin, 12 mi away | Sat · Sun · Evenings | — |
| 5 | Bonzo Septic Repair and Installation | 56 | 5.0★ (30) | New Brighton, 19 mi away | 24/7 | — |
| 6 | Steel City Plumbers | 55 | 4.8★ (159) | Carnegie, 10 mi away | 24/7 | — |
| 7 | Rick Hartman Plumbing | 54 | 4.7★ (71) | Pittsburgh, 5 mi away | 24/7 | — |
| 8 | DAP Sewer and Drain | 54 | 4.3★ (36) | Pittsburgh, 6 mi away | 24/7 | — |
| 9 | A-1 Sewer Cleaning Specialists | 54 | 4.4★ (158) | McKeesport, 16 mi away | 24/7 | — |
| 10 | A. Doleno Sewers & Plumbing | 54 | 5.0★ (43) | Jefferson Hills, 10 mi away | Sat · Sun · Evenings | — |
The 28 best septic service companies in Allison Park, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Franklin Park, 6 mi away
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.7★ from 1,123 Google reviews, the most in Allison Park.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pittsburgh, 9 mi away
59/100CR ScoreRanked #3 because of its Google rating and review volume: 5.0★ from 165 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baldwin, 12 mi away
58/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 337 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Brighton, 19 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Carnegie, 10 mi away
55/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 159 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pittsburgh, 5 mi away
54/100CR ScoreRanked #7 because of its Google rating and review volume: 4.7★ from 71 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pittsburgh, 6 mi away
54/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.3★ from 36 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McKeesport, 16 mi away
54/100CR ScoreRanked #9 because of its Google rating and review volume: 4.4★ from 158 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jefferson Hills, 10 mi away
54/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cranberry Township, 16 mi away
53/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 72 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pittsburgh, 12 mi away
53/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Brecksville, 11 mi away
52/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McKeesport, 17 mi away
52/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Allison Park
51/100CR ScoreRanked #15 because of its Google rating and review volume: 4.9★ from 76 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Upper Saint Clair, 9 mi away
51/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.0★ from 25 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cranberry Township, 4 mi away
51/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ 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 Crafton, 19 mi away
50/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Mifflin, 14 mi away
50/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.2★ from 25 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jeannette, 22 mi away
50/100CR ScoreRanked #20 because of its Google rating and review volume: 4.6★ from 73 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 Mr John
Based in Pittsburgh, 9 mi away
49/100CR ScoreRanked #21 because of its Google rating and review volume: 4.7★ from 111 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jefferson Hills, 23 mi away
48/100CR ScoreRanked #22 because of its Google rating and review volume: 4.6★ from 33 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baldwin, 17 mi away
48/100CR ScoreRanked #23 because of its Google rating and review volume: 4.9★ from 35 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Murrysville, 20 mi away
47/100CR ScoreRanked #24 because of its Google rating and review volume: 3.9★ from 49 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Murrysville, 22 mi away
46/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 28 septic service companies
#1 to #25 are shown in full above. Here are #26 to #28, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Vanscoy Plumbing & Sewer Cleaning | 46 | 4.6★ (5) | 17 mi |
| 27 | Halas Professional Sewer | 44 | 4.0★ (4) | 20 mi |
| 28 | Pro Plumbing and heating LLC | 42 | 3.7★ (3) | 11 mi |
Also serving Allison Park
11 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 - 1 Sewer Cleaning Specialists | 5.0★ (2) | 19 mi |
| A Affordable Sanitation | 3.0★ (2) | 21 mi |
| Advanced Treatment Inc. | 6 mi | |
| Bakerstown Septic Services | 18 mi | |
| Bufalini Sewer & Drain | 18 mi | |
| Mister Sewer, Plumbing & HVAC | 5.0★ (2) | 16 mi |
| Muir Excavating LLC | 20 mi | |
| Pittsburgh Septic Tank | 9 mi | |
| Podobnik Septic Services & Excavating | 11 mi | |
| Rino Excavation | 5.0★ (2) | 21 mi |
| The Home Depot | 4.2★ (758) | In Allison Park |
How we ranked Allison Park septic service companies
We scored 28 Allison Park 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 Allison Park 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 Allison Park: frequently asked questions
Who is the best septic service company in Allison Park?
By CR Score, the highest-ranked septic service company in Allison Park, PA is Sewer Flow - Pittsburgh Sewer & Drain Specialists And Plumbing with a CR Score of 60/100. It has 4.9★ from 480 Google reviews. It is open 24/7. Greater Pittsburgh Plumbing (#2) and DR Plumbing and Drain Cleaning LLC - Sewer Line & Plumbing Repair (#3) follow. We ranked 28 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Allison Park?
ContractorsRanked ranks 28 septic service companies serving Allison Park, PA. 1 of them is based in Allison Park; the rest serve it from nearby towns. Another 11 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Allison Park are open 24/7?
14 ranked septic service companies in Allison Park post 24/7 hours. The highest-ranked are Sewer Flow - Pittsburgh Sewer & Drain Specialists And Plumbing (#1), Greater Pittsburgh Plumbing (#2) and DR Plumbing and Drain Cleaning LLC - Sewer Line & Plumbing Repair (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Allison Park work on weekends?
19 of 28 ranked septic service companies post Saturday hours and 17 post Sunday hours. The highest-ranked open Saturdays are Sewer Flow - Pittsburgh Sewer & Drain Specialists And Plumbing (#1), Greater Pittsburgh Plumbing (#2) and DR Plumbing and Drain Cleaning LLC - Sewer Line & Plumbing Repair (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Allison Park septic service companies have?
The median Google rating among 28 rated septic service companies in Allison Park is 4.7★, with a median of 36 reviews. Greater Pittsburgh Plumbing has the most, 1,123 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 Allison Park count in this ranking?
Yes, if they are within 25 mi of the Allison Park 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 Allison Park
- November 2026: CR Scores recalculated for 28 septic service companies serving Allison Park.
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