58/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 3,071 Google reviews, the most in Carbondale.
Best Septic Service Companies in Carbondale, IL (2026)
8 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Carbondale: Baker & Sons Plumbing, CR Score 58/100; 4.9★ from 3,071 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Lucas Septic Tank Services, posts 24/7 hours; ranked #2 of 8.
- 3
Most-reviewed: Grammer Septic Tank Cleaning, 21 Google reviews at 5.0★, the most of 8 ranked after Baker & Sons Plumbing; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Carbondale septic service companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 5 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.5★ across 8 rated businesses.
Top 8 septic service companies in Carbondale at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Baker & Sons Plumbing | 58 | 4.9★ (3,071) | Marion, 17 mi away | 24/7 | Overall |
| 2 | Lucas Septic Tank Services | 54 | 4.3★ (11) | Marion, 18 mi away | 24/7 | Emergencies |
| 3 | Grammer Septic Tank Cleaning | 54 | 5.0★ (21) | Murphysboro, 5 mi away | Sat · Sun | Most reviews |
| 4 | Skelcher-Milani Septic Service | 54 | 4.7★ (7) | Carbondale | — | — |
| 5 | Pitstop Portable Restrooms | 53 | 5.0★ (5) | Marion, 15 mi away | Sat · Sun | — |
| 6 | Skelcher-Milani Septic Service | 50 | 3.8★ (10) | Herrin, 12 mi away | — | — |
| 7 | Dave's Sewer-Line Cleaning | 49 | 4.0★ (4) | West Frankfort, 21 mi away | 24/7 | — |
| 8 | Terra Pro Excavating | 42 | 4.4★ (14) | Marion, 25 mi away | — | — |
The 8 best septic service companies in Carbondale, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Marion, 18 mi away
54/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.3★ from 11 Google reviews, listed on Google as “Septic system service”.
Based in Murphysboro, 5 mi away
54/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Plumber”.
Based in Carbondale
54/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Marion, 15 mi away
53/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Herrin, 12 mi away
50/100CR ScoreRanked #6 because of its Google rating and trade focus: 3.8★ from 10 Google reviews, listed on Google as “Septic system service”.
Based in West Frankfort, 21 mi away
49/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based in Marion, 25 mi away
42/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Demolition contractor”.
How we ranked Carbondale septic service companies
We scored 8 Carbondale 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 Carbondale 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 Carbondale: frequently asked questions
Who is the best septic service company in Carbondale?
By CR Score, the highest-ranked septic service company in Carbondale, IL is Baker & Sons Plumbing with a CR Score of 58/100. It has 4.9★ from 3,071 Google reviews. It is open 24/7. Lucas Septic Tank Services (#2) and Grammer Septic Tank Cleaning (#3) follow. We ranked 8 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Carbondale?
ContractorsRanked ranks 8 septic service companies serving Carbondale, IL. 1 of them is based in Carbondale; the rest serve it from nearby towns. Counts are as of November 2026.
Which septic service companies in Carbondale are open 24/7?
3 ranked septic service companies in Carbondale post 24/7 hours. The highest-ranked are Baker & Sons Plumbing (#1), Lucas Septic Tank Services (#2) and Dave's Sewer-Line Cleaning (#7). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Carbondale work on weekends?
5 of 8 ranked septic service companies post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are Baker & Sons Plumbing (#1), Lucas Septic Tank Services (#2) and Grammer Septic Tank Cleaning (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Carbondale septic service companies have?
The median Google rating among 8 rated septic service companies in Carbondale is 4.5★, with a median of 11 reviews. Baker & Sons Plumbing has the most, 3,071 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 Carbondale count in this ranking?
Yes, if they are within 25 mi of the Carbondale 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 Carbondale
- November 2026: CR Scores recalculated for 8 septic service companies serving Carbondale.
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