59/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,645 Google reviews, the most in Superior.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Superior, WI (2026)
29 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Superior: ASP Mechanical, CR Score 59/100; 4.8★ from 1,645 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Twin Ports Septic Pump and Repair, posts 24/7 hours; ranked #2 of 29.
- 22
Most-reviewed: A+ Garden Center, 96 Google reviews at 4.6★, the most of 29 ranked after ASP Mechanical; ranked #22.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
29 Superior septic service companies are ranked here by CR Score, from ten published factors. 10 are open 24/7, 12 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.8★ across 29 rated businesses.
Top 10 septic service companies in Superior at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ASP Mechanical | 59 | 4.8★ (1,645) | Duluth, 9 mi away | 24/7 | Overall |
| 2 | Twin Ports Septic Pump and Repair | 58 | 4.9★ (44) | Duluth, 15 mi away | 24/7 | Emergencies |
| 3 | After Hours Sewer & Drain Cleaning LLC | 58 | 5.0★ (88) | Duluth, 7 mi away | 24/7 | — |
| 4 | Steve's septic pumping service | 57 | 5.0★ (29) | Duluth, 18 mi away | 24/7 | — |
| 5 | RJC Septic and Excavating LLC | 56 | 5.0★ (3) | Duluth, 4 mi away | 24/7 | — |
| 6 | Flow Sewer and Drain Cleaning | 56 | 4.9★ (56) | Duluth, 9 mi away | 24/7 | — |
| 7 | Geno's Septic Services | 56 | 4.7★ (13) | Superior | Sat | — |
| 8 | superior septic systems | 56 | 5.0★ (7) | Superior | — | — |
| 9 | Mr. Biffy LLC | 55 | 4.6★ (34) | Superior | — | — |
| 10 | Lakeside Septic Inc now Sanders Septic Services | 55 | 3.8★ (6) | Superior | — | — |
The 29 best septic service companies in Superior, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Duluth, 15 mi away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duluth, 7 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 88 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duluth, 18 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ 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 Duluth, 4 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duluth, 9 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Superior
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ 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 Superior
56/100CR ScoreRanked #8 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 Superior
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 34 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Superior
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 3.8★ from 6 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duluth, 11 mi away
54/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Superior
54/100CR ScoreRanked #12 because of its Google rating and review volume: 4.4★ from 63 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duluth, 12 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 47 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Superior
53/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duluth, 9 mi away
52/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duluth, 11 mi away
52/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.5★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duluth, 17 mi away
51/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cloquet, 22 mi away
51/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.6★ from 42 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duluth, 4 mi away
51/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.3★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Cloquet, 6 mi away
51/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.6★ from 54 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cloquet, 13 mi away
50/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 90 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#22 A+ Garden Center
Based in Duluth, 15 mi away
49/100CR ScoreRanked #22 because of its Google rating and review volume: 4.6★ from 96 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#23 ATK
Based in Hermantown, 10 mi away
48/100CR ScoreRanked #23 because of its Google rating and review volume: 4.8★ from 75 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hermantown, 11 mi away
48/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#25 Meadows Inc.
Based in Hermantown, 16 mi away
48/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Demolition contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 29 septic service companies
#1 to #25 are shown in full above. Here are #26 to #29, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Young Plumbing and Heating | 47 | 3.8★ (38) | In Superior |
| 27 | Diser Construction | 46 | 4.6★ (10) | 4 mi |
| 28 | Darrel D Johnson Excavating, Inc. | 43 | 4.2★ (5) | 15 mi |
| 29 | Advanced Excavating & Onsite Systems, LLC | 42 | 5.0★ (5) | 18 mi |
Also serving Superior
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 |
|---|---|---|
| Budget Septic Pumping | 9 mi | |
| Duluth Septic Company, LLC | 6 mi | |
| Gene’s Septic Solutions | 5.0★ (1) | 11 mi |
| Northern Lakes Septic, LLC | 5.0★ (1) | 7 mi |
| Northern Septic Pumping | 5.0★ (1) | 13 mi |
| Superior Sewer Services | In Superior | |
| Thomas R Olson Trucking & Excavating AKA Consumer Septic Service | 12 mi |
How we ranked Superior septic service companies
We scored 29 Superior 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 Superior 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 Superior: frequently asked questions
Who is the best septic service company in Superior?
By CR Score, the highest-ranked septic service company in Superior, WI is ASP Mechanical with a CR Score of 59/100. It has 4.8★ from 1,645 Google reviews. It is open 24/7. Twin Ports Septic Pump and Repair (#2) and After Hours Sewer & Drain Cleaning LLC (#3) follow. We ranked 29 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Superior?
ContractorsRanked ranks 29 septic service companies serving Superior, WI. 7 of them are based in Superior; 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 Superior are open 24/7?
10 ranked septic service companies in Superior post 24/7 hours. The highest-ranked are ASP Mechanical (#1), Twin Ports Septic Pump and Repair (#2) and After Hours Sewer & Drain Cleaning LLC (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Superior work on weekends?
12 of 29 ranked septic service companies post Saturday hours and 10 post Sunday hours. The highest-ranked open Saturdays are ASP Mechanical (#1), Twin Ports Septic Pump and Repair (#2) and After Hours Sewer & Drain Cleaning LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Superior septic service companies have?
The median Google rating among 29 rated septic service companies in Superior is 4.8★, with a median of 29 reviews. ASP Mechanical has the most, 1,645 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 Superior count in this ranking?
Yes, if they are within 25 mi of the Superior 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 Superior
- November 2026: CR Scores recalculated for 29 septic service companies serving Superior.
More septic service companies and Superior pages
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