18 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oshkosh: Flush Drain & Sewer Cleaning A Division of JT Schmidt Plumbing Inc, CR Score 59/100; 4.6★ from 73 Google reviews; open 24/7.
Best for emergencies (open 24/7): Speedy Clean Drain & Sewer, posts 24/7 hours; ranked #2 of 18.
Most-reviewed: Appleton Drain & Sewer Cleaning, 166 Google reviews at 4.9★, the most of 18 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
18 Oshkosh septic service companies are ranked here by CR Score, from ten published factors. 5 are open 24/7, 7 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.6★ across 18 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Flush Drain & Sewer Cleaning A Division of JT Schmidt Plumbing Inc | 59 | 4.6★ (73) | Appleton, 20 mi away | 24/7 | Overall |
| 2 | Speedy Clean Drain & Sewer | 57 | 4.7★ (73) | Menasha, 15 mi away | 24/7 | Emergencies |
| 3 | Appleton Drain & Sewer Cleaning | 57 | 4.9★ (166) | Little Chute, 21 mi away | Sat · Sun | Most reviews |
| 4 | Lakeshore Septic Services | 56 | 4.5★ (8) | Oshkosh | — | — |
| 5 | Winnebago Liquid Waste | 56 | 4.4★ (24) | Oshkosh | — | — |
| 6 | Fondy Sewer and Drain | 56 | 4.8★ (102) | Fond du Lac, 19 mi away | Sat · Sun · Evenings | — |
| 7 | Pit-Stop Portables | 55 | 4.8★ (52) | Fond du Lac, 16 mi away | — | — |
| 8 | Asap Sewer & Drain Cleaning LLC | 55 | 4.2★ (31) | Neenah, 12 mi away | 24/7 | — |
| 9 | Ogden Plumbing | 52 | 4.0★ (47) | Neenah, 12 mi away | 24/7 | — |
| 10 | Sammons Plumbing | 51 | 4.4★ (40) | Oshkosh | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in Oshkosh
Based in Appleton, 20 mi away
Ranked #1 because of its Google rating and trade focus: 4.6★ from 73 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Menasha, 15 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 73 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Little Chute, 21 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 166 Google reviews, the most in Oshkosh.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oshkosh
Ranked #4 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Oshkosh
Ranked #5 because of its Google rating and trade focus: 4.4★ from 24 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fond du Lac, 19 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 102 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fond du Lac, 16 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Neenah, 12 mi away
Ranked #8 because of its Google rating and trade focus: 4.2★ from 31 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Neenah, 12 mi away
Ranked #9 because of its Google rating and review volume: 4.0★ from 47 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oshkosh
Ranked #10 because of its Google rating and review volume: 4.4★ from 40 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oshkosh
Ranked #11 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Kimberly, 20 mi away
Ranked #12 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Appleton, 19 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 32 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Appleton, 18 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 38 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fond du Lac, 16 mi away
Ranked #15 because of its Google rating and trade focus: 3.7★ 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 Neenah, 12 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fond du Lac, 17 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Excavating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Fond du Lac, 17 mi away
Ranked #18 because of its Google rating and review volume: 3.8★ from 29 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
5 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 |
|---|---|---|
| Boyd's Sewer & Sink Cleaning | 18 mi | |
| Ripon Septic Services | 21 mi | |
| Rogers Pump Company LLC | 4.5★ (24) | In Oshkosh |
| S&A Septic Services | 23 mi | |
| Wieser Concrete Products Inc | 20 mi |
We scored 18 Oshkosh 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 Oshkosh 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 |