60/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 232 Google reviews, the most in Janesville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Janesville, WI (2026)
18 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Janesville: Drain Cleaning Brothers, CR Score 60/100; 5.0★ from 232 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): 815 Septic Guy, posts 24/7 hours; ranked #3 of 18.
- 2
Most-reviewed: Budget Drain & Sewer Cleaning LLC, 111 Google reviews at 5.0★, the most of 18 ranked after Drain Cleaning Brothers; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
18 Janesville septic service companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 7 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 18 rated businesses.
Top 10 septic service companies in Janesville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Drain Cleaning Brothers | 60 | 5.0★ (232) | Milton, 7 mi away | 24/7 | Overall |
| 2 | Budget Drain & Sewer Cleaning LLC | 60 | 5.0★ (111) | Janesville | Sat | Most reviews |
| 3 | 815 Septic Guy | 60 | 5.0★ (62) | Machesney Park, 23 mi away | 24/7 | Emergencies |
| 4 | Epic Septic LLC | 58 | 5.0★ (3) | Janesville | 24/7 | — |
| 5 | POWTS Pros LLC | 56 | 5.0★ (4) | Janesville | Sat | — |
| 6 | Mike Nehls Excavating & Septic Systems | 55 | 4.8★ (4) | Janesville | Sat | — |
| 7 | Bowers Sewer & Drain Cleaning | 54 | 5.0★ (10) | Janesville | — | — |
| 8 | Bergendal Septic Service LLC | 54 | 4.4★ (17) | Edgerton, 7 mi away | — | — |
| 9 | Honey Wagon Septic Services Inc | 54 | 4.3★ (20) | Stoughton, 19 mi away | — | — |
| 10 | Phils Sewer Cleaning Service | 52 | 5.0★ (5) | Janesville | Sat | — |
The 18 best septic service companies in Janesville, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Janesville
60/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 111 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Machesney Park, 23 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
58/100CR ScoreRanked #4 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 Janesville
56/100CR ScoreRanked #5 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 Janesville
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ 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 Janesville
54/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Edgerton, 7 mi away
54/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.4★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stoughton, 19 mi away
54/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.3★ from 20 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Janesville
52/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockford, 12 mi away
52/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ 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 Rockton, 15 mi away
51/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
51/100CR ScoreRanked #13 because of its Google rating and review volume: 4.6★ from 27 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Bjoin limestone
Based in Janesville
51/100CR ScoreRanked #14 because of its Google rating and review volume: 4.3★ from 32 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Platteville, 21 mi away
50/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ 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 Beloit, 17 mi away
49/100CR ScoreRanked #16 because of its Google rating and review volume: 4.7★ from 69 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
47/100CR ScoreRanked #17 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#18 #1 Plumbing Co.
Based in Machesney Park, 22 mi away
45/100CR ScoreRanked #18 because of its Google rating and review volume: 4.4★ from 25 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Janesville
6 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 |
|---|---|---|
| Bert's Septic & Excavating | 5.0★ (2) | 24 mi |
| Dan Erickson Construction | 5.0★ (1) | 22 mi |
| Haban Septic & Excavating LLC | 1.0★ (1) | 18 mi |
| Janesville Sewer And Drain Cleaning LLC | 1.0★ (1) | In Janesville |
| Landis Septic | 5.0★ (1) | In Janesville |
| Rockford Septic System Co | 22 mi |
How we ranked Janesville septic service companies
We scored 18 Janesville 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 Janesville 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 Janesville: frequently asked questions
Who is the best septic service company in Janesville?
By CR Score, the highest-ranked septic service company in Janesville, WI is Drain Cleaning Brothers with a CR Score of 60/100. It has 5.0★ from 232 Google reviews. It is open 24/7. Budget Drain & Sewer Cleaning LLC (#2) and 815 Septic Guy (#3) follow. We ranked 18 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Janesville?
ContractorsRanked ranks 18 septic service companies serving Janesville, WI. 9 of them are based in Janesville; the rest serve it from nearby towns. Another 6 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Janesville are open 24/7?
3 ranked septic service companies in Janesville post 24/7 hours. The highest-ranked are Drain Cleaning Brothers (#1), 815 Septic Guy (#3) and Epic Septic LLC (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Janesville work on weekends?
7 of 18 ranked septic service companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Drain Cleaning Brothers (#1), Budget Drain & Sewer Cleaning LLC (#2) and 815 Septic Guy (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Janesville septic service companies have?
The median Google rating among 18 rated septic service companies in Janesville is 4.9★, with a median of 15 reviews. Drain Cleaning Brothers has the most, 232 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 Janesville count in this ranking?
Yes, if they are within 25 mi of the Janesville 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 Janesville
- November 2026: CR Scores recalculated for 18 septic service companies serving Janesville.
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