58/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 102 Google reviews, the most in Waupun.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Waupun, WI (2026)
8 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Waupun: Fondy Sewer and Drain, CR Score 58/100; 4.8★ from 102 Google reviews; open 7 days a week.
- 2
Most-reviewed: Pit-Stop Portables, 52 Google reviews at 4.8★, the most of 8 ranked after Fondy Sewer and Drain; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Waupun septic service companies are ranked here by CR Score, from ten published factors. 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 8 rated businesses.
Most of this list also appears on the Septic service companies in Fond du Lac ranking. See Septic service companies in Fond du Lac
Top 8 septic service companies in Waupun at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Fondy Sewer and Drain | 58 | 4.8★ (102) | Fond du Lac, 17 mi away | Sat · Sun · Evenings | Overall |
| 2 | Pit-Stop Portables | 56 | 4.8★ (52) | Fond du Lac, 17 mi away | — | Most reviews |
| 3 | Laudolff Septic Services, LLC | 55 | 4.7★ (41) | Fond du Lac, 16 mi away | — | — |
| 4 | Fuiten's Septic Services | 52 | 4.9★ (8) | Hartford, 18 mi away | Sat | — |
| 5 | Dean Septic Services | 48 | 3.7★ (3) | Fond du Lac, 17 mi away | — | — |
| 6 | Mand Plumbing LLC | 46 | 3.8★ (29) | Fond du Lac, 17 mi away | — | — |
| 7 | Ulmer's Plumbing & Septic Services | 45 | 3.0★ (5) | Beaver Dam, 15 mi away | — | — |
| 8 | Pat Mand Boring Trench-Septic | 45 | 5.0★ (3) | Fond du Lac, 24 mi away | — | — |
The 8 best septic service companies in Waupun, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Fond du Lac, 17 mi away
56/100CR ScoreRanked #2 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 Fond du Lac, 16 mi away
55/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 41 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hartford, 18 mi away
52/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ 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 Fond du Lac, 17 mi away
48/100CR ScoreRanked #5 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 Fond du Lac, 17 mi away
46/100CR ScoreRanked #6 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.
Based in Beaver Dam, 15 mi away
45/100CR ScoreRanked #7 because of its Google rating and trade focus: 3.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fond du Lac, 24 mi away
45/100CR ScoreRanked #8 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.
How we ranked Waupun septic service companies
We scored 8 Waupun 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 Waupun 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 Waupun: frequently asked questions
Who is the best septic service company in Waupun?
By CR Score, the highest-ranked septic service company in Waupun, WI is Fondy Sewer and Drain with a CR Score of 58/100. It has 4.8★ from 102 Google reviews. It is open 7 days a week. Pit-Stop Portables (#2) and Laudolff Septic Services, LLC (#3) follow. We ranked 8 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Waupun?
ContractorsRanked ranks 8 septic service companies serving Waupun, WI. Counts are as of November 2026.
Which septic service companies in Waupun work on weekends?
2 of 8 ranked septic service companies post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Fondy Sewer and Drain (#1) and Fuiten's Septic Services (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Waupun septic service companies have?
The median Google rating among 8 rated septic service companies in Waupun is 4.8★, with a median of 19 reviews. Fondy Sewer and Drain has the most, 102 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 Waupun count in this ranking?
Yes, if they are within 25 mi of the Waupun 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 Waupun
- November 2026: CR Scores recalculated for 8 septic service companies serving Waupun.
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