61/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 2,219 Google reviews, the most in Dardenne Prairie.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Dardenne Prairie, MO (2026)
40 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Dardenne Prairie: Superior Service, CR Score 61/100; 5.0★ from 2,219 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Mission Septic And Drain, posts 24/7 hours; ranked #2 of 40.
- 8
Most-reviewed: Mr. Rooter Plumbing of St. Louis, 2,141 Google reviews at 4.8★, the most of 40 ranked after Superior Service; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
40 Dardenne Prairie septic service companies are ranked here by CR Score, from ten published factors. 13 are open 24/7, 27 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.7★ across 40 rated businesses.
Top 10 septic service companies in Dardenne Prairie at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Superior Service | 61 | 5.0★ (2,219) | Dardenne Prairie | Sat · Sun · Evenings | Overall |
| 2 | Mission Septic And Drain | 58 | 5.0★ (112) | O'Fallon, 22 mi away | 24/7 | Emergencies |
| 3 | Superior Service | 58 | 4.9★ (1,766) | Chesterfield, 9 mi away | Sat · Sun · Evenings | — |
| 4 | Mr. Rooter Plumbing of St. Charles | 57 | 4.8★ (356) | Saint Peters, 6 mi away | 24/7 | — |
| 5 | Pierson Plumbing Sewer & Drain L.L.C | 57 | 4.8★ (169) | Saint Charles, 13 mi away | 24/7 | — |
| 6 | Warrior Sewer and Drain | 56 | 4.8★ (459) | Chesterfield, 8 mi away | Sat · Evenings | — |
| 7 | A&M Septic and Excavating, LLC | 56 | 3.1★ (18) | O'Fallon, 5 mi away | 24/7 | — |
| 8 | Mr. Rooter Plumbing of St. Louis | 56 | 4.8★ (2,141) | Ballwin, 22 mi away | 24/7 | Most reviews |
| 9 | Dc septic & drain | 55 | 4.7★ (15) | Troy, 17 mi away | 24/7 | — |
| 10 | Shamrock Sewer & Drain | 55 | 4.8★ (304) | Pacific, 22 mi away | 24/7 | — |
The 40 best septic service companies in Dardenne Prairie, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in O'Fallon, 22 mi away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 112 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chesterfield, 9 mi away
58/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 1,766 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 6 mi away
57/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 356 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Charles, 13 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 169 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chesterfield, 8 mi away
56/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 459 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in O'Fallon, 5 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 3.1★ 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 Ballwin, 22 mi away
56/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 2,141 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Troy, 17 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pacific, 22 mi away
55/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 304 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#11 The Sewer Pros
Based in Chesterfield, 9 mi away
55/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 594 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Godfrey, 12 mi away
55/100CR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 321 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 7 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 81 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in O'Fallon, 15 mi away
53/100CR ScoreRanked #14 because of its Google rating and trade focus: 3.7★ from 10 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pacific, 20 mi away
52/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Saint Ann, 18 mi away
51/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.0★ from 177 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#17 B & J Septic
Based in Troy, 20 mi away
51/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.2★ from 18 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, 20 mi away
51/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.3★ from 29 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Creve Coeur, 15 mi away
51/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Union, 23 mi away
51/100CR ScoreRanked #20 because of its Google rating and review volume: 4.8★ from 104 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bridgeton, 17 mi away
50/100CR ScoreRanked #21 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Washington, 18 mi away
50/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.5★ from 13 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, 23 mi away
49/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 11 mi away
49/100CR ScoreRanked #24 because of its Google rating and review volume: 4.8★ from 59 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kirkwood, 22 mi away
49/100CR ScoreRanked #25 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.
All 40 septic service companies
#1 to #25 are shown in full above. Here are #26 to #40, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Eureka Plumbing Sewer and Drain | 49 | 4.9★ (79) | 20 mi |
| 27 | Mid America Drain Services | 49 | 4.4★ (36) | 20 mi |
| 28 | Superior Sewer Co | 49 | 4.8★ (183) | 25 mi |
| 29 | C E Bollmeier Co Inc | 48 | 3.9★ (7) | 14 mi |
| 30 | Signature Plumbing Services St Louis | 48 | 4.6★ (31) | 25 mi |
| 31 | 1st Priority Drain Cleaning & More LLC | 48 | 4.9★ (76) | 21 mi |
| 32 | Sewer-Drain Cleaning Service | 47 | 4.7★ (6) | 23 mi |
| 33 | Votruba Sewer & Excavating | 47 | 4.0★ (11) | 16 mi |
| 34 | Gateway Sewer & Drain, Inc. | 46 | 4.1★ (91) | 25 mi |
| 35 | Alert Plumbing & Sewer Cleaning | 46 | 4.7★ (3) | 25 mi |
| 36 | M. Turpin Services, LLC | 45 | 4.4★ (28) | 15 mi |
| 37 | All American Pumping and Drain | 44 | 3.0★ (6) | 14 mi |
| 38 | A-1 Plumbing & Sewer Cleaning | 44 | 3.9★ (10) | 20 mi |
| 39 | Tharp Sewer and Drain | 44 | 4.5★ (8) | 24 mi |
| 40 | Flowmasters Plumbing | 43 | 4.4★ (19) | 20 mi |
Also serving Dardenne Prairie
11 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 |
|---|---|---|
| Alpha Sewer N Drain | 23 mi | |
| Biologix Products Group | 5.0★ (1) | 19 mi |
| Burke Plumbing | 24 mi | |
| Dc septic & drain | 15 mi | |
| Drain Cleaning St Louis | 5.0★ (1) | 25 mi |
| Eco Septic Tank Pumping St Louis | 16 mi | |
| Landis Environmental Sewer Services | 5.0★ (1) | 23 mi |
| Mario's Sewer & Drain Cleaning, LLC | 19 mi | |
| Mega Rooter sewer and Drain LLC | 12 mi | |
| O'Fallon Sewer & Plumbing Repair Service | 6 mi | |
| SweenCo Sewer Rehabilitation | 5.0★ (2) | 13 mi |
How we ranked Dardenne Prairie septic service companies
We scored 40 Dardenne Prairie 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 Dardenne Prairie 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 Dardenne Prairie: frequently asked questions
Who is the best septic service company in Dardenne Prairie?
By CR Score, the highest-ranked septic service company in Dardenne Prairie, MO is Superior Service with a CR Score of 61/100. It has 5.0★ from 2,219 Google reviews. It is open 7 days a week. Mission Septic And Drain (#2) and Superior Service (#3) follow. We ranked 40 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Dardenne Prairie?
ContractorsRanked ranks 40 septic service companies serving Dardenne Prairie, MO. 1 of them is based in Dardenne Prairie; the rest serve it from nearby towns. Another 11 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Dardenne Prairie are open 24/7?
13 ranked septic service companies in Dardenne Prairie post 24/7 hours. The highest-ranked are Mission Septic And Drain (#2), Mr. Rooter Plumbing of St. Charles (#4) and Pierson Plumbing Sewer & Drain L.L.C (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Dardenne Prairie work on weekends?
27 of 40 ranked septic service companies post Saturday hours and 19 post Sunday hours. The highest-ranked open Saturdays are Superior Service (#1), Mission Septic And Drain (#2) and Superior Service (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Dardenne Prairie septic service companies have?
The median Google rating among 40 rated septic service companies in Dardenne Prairie is 4.7★, with a median of 34 reviews. Superior Service has the most, 2,219 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 Dardenne Prairie count in this ranking?
Yes, if they are within 25 mi of the Dardenne Prairie 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 Dardenne Prairie
- November 2026: CR Scores recalculated for 40 septic service companies serving Dardenne Prairie.
More septic service companies and Dardenne Prairie pages
Septic service companies near Dardenne Prairie
- Septic service companies in O'Fallon, MO38 ranked
- Septic service companies in Lake Saint Louis, MO31 ranked
- Septic service companies in Saint Peters, MO47 ranked
- Septic service companies in Wentzville, MO24 ranked
- Septic service companies in Chesterfield, MO63 ranked
- Septic service companies in Wildwood, MO58 ranked
- Septic service companies in Saint Charles, MO59 ranked
- Septic service companies in Ballwin, MO62 ranked
- Septic service companies in Maryland Heights, MO63 ranked
- Septic service companies in Manchester, MO63 ranked
Other trades in Dardenne Prairie
- Roofers in Dardenne Prairie642 ranked
- Plumbers in Dardenne Prairie229 ranked
- Electricians in Dardenne Prairie184 ranked
- HVAC contractors in Dardenne Prairie315 ranked
- General contractors in Dardenne Prairie425 ranked
- Painters in Dardenne Prairie133 ranked
- Landscapers in Dardenne Prairie170 ranked
- Handymen in Dardenne Prairie69 ranked
- Kitchen remodelers in Dardenne Prairie270 ranked
- Bathroom remodelers in Dardenne Prairie271 ranked
- Flooring contractors in Dardenne Prairie199 ranked
- Tile installers in Dardenne Prairie45 ranked
- Drywall contractors in Dardenne Prairie16 ranked
- Concrete contractors in Dardenne Prairie198 ranked
- Fence contractors in Dardenne Prairie86 ranked
- Deck builders in Dardenne Prairie155 ranked
- Siding contractors in Dardenne Prairie272 ranked
- Window installers in Dardenne Prairie183 ranked
- Gutter installers in Dardenne Prairie180 ranked
- Insulation contractors in Dardenne Prairie43 ranked
- Solar installers in Dardenne Prairie53 ranked
- Garage door repair companies in Dardenne Prairie80 ranked
- Foundation repair companies in Dardenne Prairie75 ranked
- Tree services in Dardenne Prairie201 ranked
- Masonry contractors in Dardenne Prairie99 ranked
- Water damage restoration companies in Dardenne Prairie246 ranked
- Home builders in Dardenne Prairie233 ranked
- Demolition contractors in Dardenne Prairie41 ranked
- Window cleaners in Dardenne Prairie41 ranked
- Pressure washing companies in Dardenne Prairie88 ranked
- Pest control companies in Dardenne Prairie109 ranked
- Paving contractors in Dardenne Prairie78 ranked
- Auto glass repair shops in Dardenne Prairie85 ranked
- Excavating contractors in Dardenne Prairie73 ranked
- Pool builders in Dardenne Prairie107 ranked
- All contractors in Dardenne Prairie