58/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Waterloo, IL (2026)
43 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Waterloo: Shults Septic Service, LLC, CR Score 58/100; 5.0★ from 15 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): River City Sewer& Drain, L.L.C., posts 24/7 hours; ranked #2 of 43.
- 3
Most-reviewed: Mr. Rooter Plumbing of St. Louis, 2,141 Google reviews at 4.8★, the most of 43 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
43 Waterloo septic service companies are ranked here by CR Score, from ten published factors. 8 are open 24/7, 18 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.7★ across 43 rated businesses.
Top 10 septic service companies in Waterloo at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Shults Septic Service, LLC | 58 | 5.0★ (15) | Belleville, 7 mi away | 24/7 | Overall |
| 2 | River City Sewer& Drain, L.L.C. | 57 | 4.9★ (207) | Arnold, 14 mi away | 24/7 | Emergencies |
| 3 | Mr. Rooter Plumbing of St. Louis | 56 | 4.8★ (2,141) | Ballwin, 21 mi away | 24/7 | Most reviews |
| 4 | J & J Septic and Sewer Cleaning | 56 | 4.7★ (40) | Waterloo | — | — |
| 5 | Mitchell Environmental | 54 | 5.0★ (212) | Belleville, 22 mi away | — | — |
| 6 | Maplewood Plumbing & Sewer, LLC. | 53 | 4.8★ (1,691) | St. Louis, 20 mi away | — | — |
| 7 | DRD Environmental Septic System Design | 52 | 4.8★ (19) | St. Louis, 16 mi away | Sat | — |
| 8 | Sewer Solution Pros | 52 | 5.0★ (77) | Arnold, 16 mi away | Sat | — |
| 9 | Red's Sewer Service, Inc. | 52 | 5.0★ (83) | Belleville, 10 mi away | — | — |
| 10 | All Purpose Sewer & Drain Clng | 51 | 4.7★ (23) | Sappington, 19 mi away | 24/7 | — |
The 43 best septic service companies in Waterloo, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Arnold, 14 mi away
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 207 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ballwin, 21 mi away
56/100CR ScoreRanked #3 because of its Google rating and review volume: 4.8★ from 2,141 Google reviews, the most in Waterloo.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 40 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belleville, 22 mi away
54/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 212 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 20 mi away
53/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 1,691 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 16 mi away
52/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arnold, 16 mi away
52/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 77 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belleville, 10 mi away
52/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 83 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sappington, 19 mi away
51/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belleville, 10 mi away
50/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arnold, 14 mi away
50/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.0★ from 105 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 19 mi away
50/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 183 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belleville, 15 mi away
50/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 51 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Festus, 17 mi away
50/100CR ScoreRanked #15 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belleville, 23 mi away
49/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Webster Groves, 19 mi away
49/100CR ScoreRanked #17 because of its Google rating and availability: 4.6★ from 31 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kirkwood, 22 mi away
49/100CR ScoreRanked #18 because of its Google rating and trade focus: 3.7★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in St. Louis, 19 mi away
49/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.3★ from 15 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 17 mi away
48/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 Sewer-Oscopy
Based in St. Louis, 12 mi away
48/100CR ScoreRanked #21 because of its Google rating and trade focus: 3.9★ from 30 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in St. Louis, 22 mi away
48/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.3★ 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 St. Louis, 18 mi away
48/100CR ScoreRanked #23 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 12 mi away
48/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 19 mi away
48/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.1★ from 91 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
All 43 septic service companies
#1 to #25 are shown in full above. Here are #26 to #43, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Mid America Drain Services | 48 | 4.4★ (36) | 23 mi |
| 27 | All Type Septic Pumping & Artn | 47 | 5.0★ (5) | 13 mi |
| 28 | Sewer-Drain Cleaning Service | 47 | 4.7★ (6) | 21 mi |
| 29 | E L Austin Plumbing & Sewer Co | 47 | 4.8★ (8) | 23 mi |
| 30 | Steve's Affordable Sewer & Drn | 47 | 4.3★ (4) | 12 mi |
| 31 | Precision Sewer And Drain Service LLC | 47 | 4.6★ (9) | 18 mi |
| 32 | Joe's Plumbing Drain & Sewer Service, LLC | 47 | 4.3★ (7) | 9 mi |
| 33 | Ron's Plumbing & Sewer Service | 47 | 4.3★ (32) | 16 mi |
| 34 | Alpha Plumbing & Sewer Co | 47 | 4.7★ (14) | 14 mi |
| 35 | Mr. Rooter Plumbing of Belleville | 46 | 3.7★ (3) | 18 mi |
| 36 | Taylor Sewer Service | 46 | 4.7★ (23) | 21 mi |
| 37 | Visu-Sewer of Missouri, LLC | 46 | 4.0★ (8) | 19 mi |
| 38 | East Side Sewer & Plumbing Co | 45 | 3.8★ (34) | 15 mi |
| 39 | Sewer & Drain Solutions, LLC | 45 | 4.6★ (9) | 17 mi |
| 40 | Tony's Sewer & Drain Co | 44 | 4.7★ (3) | 15 mi |
| 41 | Eric's Sewer Plumbing & Elec | 44 | 2.8★ (4) | 22 mi |
| 42 | GMP Plumbing | 43 | 4.7★ (16) | 20 mi |
| 43 | Jet Precast Inc | 42 | 4.3★ (16) | 22 mi |
Also serving Waterloo
8 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 |
|---|---|---|
| D-A-C Home Inspections | 5.0★ (1) | 23 mi |
| Drain Cleaning St Louis | 5.0★ (1) | 19 mi |
| E Plumbing and Sewer | 5.0★ (2) | 23 mi |
| Eleven Eleven Excavating LLC | 5.0★ (1) | 9 mi |
| H & H Sewer & Pipe Cleaning | 5.0★ (1) | 8 mi |
| Mario's Sewer & Drain Cleaning LLC | 23 mi | |
| Miller Septic | 5.0★ (1) | 16 mi |
| Royale Sewer and drains | 23 mi |
How we ranked Waterloo septic service companies
We scored 43 Waterloo 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 Waterloo 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 Waterloo: frequently asked questions
Who is the best septic service company in Waterloo?
By CR Score, the highest-ranked septic service company in Waterloo, IL is Shults Septic Service, LLC with a CR Score of 58/100. It has 5.0★ from 15 Google reviews. It is open 24/7. River City Sewer& Drain, L.L.C. (#2) and Mr. Rooter Plumbing of St. Louis (#3) follow. We ranked 43 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Waterloo?
ContractorsRanked ranks 43 septic service companies serving Waterloo, IL. 1 of them is based in Waterloo; the rest serve it from nearby towns. Another 8 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Waterloo are open 24/7?
8 ranked septic service companies in Waterloo post 24/7 hours. The highest-ranked are Shults Septic Service, LLC (#1), River City Sewer& Drain, L.L.C. (#2) and Mr. Rooter Plumbing of St. Louis (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Waterloo work on weekends?
18 of 43 ranked septic service companies post Saturday hours and 14 post Sunday hours. The highest-ranked open Saturdays are Shults Septic Service, LLC (#1), River City Sewer& Drain, L.L.C. (#2) and Mr. Rooter Plumbing of St. Louis (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Waterloo septic service companies have?
The median Google rating among 43 rated septic service companies in Waterloo is 4.7★, with a median of 16 reviews. Mr. Rooter Plumbing of St. Louis has the most, 2,141 reviews, and ranks #3. 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 Waterloo count in this ranking?
Yes, if they are within 25 mi of the Waterloo 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 Waterloo
- November 2026: CR Scores recalculated for 43 septic service companies serving Waterloo.
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