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Best Septic Service Companies in Festus, MO (2026)

29 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Festus: Oberkramer Septic Solutions, LLC, CR Score 57/100; 5.0★ from 105 Google reviews.

  2. 2

    Best for emergencies (open 24/7): River City Sewer& Drain, L.L.C., posts 24/7 hours; ranked #2 of 29.

  3. 3

    Most-reviewed: Mr. Rooter Plumbing of St. Louis, 2,141 Google reviews at 4.8★, the most of 29 ranked; ranked #3.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

29 Festus septic service companies are ranked here by CR Score, from ten published factors. 8 are open 24/7, 13 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.7★ across 29 rated businesses.

Top 10 septic service companies in Festus at a glance

Top 10 septic service companies in Festus at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Oberkramer Septic Solutions, LLC575.0★ (105)Wildwood, 14 mi away—Overall
2River City Sewer& Drain, L.L.C.564.9★ (207)Arnold, 16 mi away24/7Emergencies
3Mr. Rooter Plumbing of St. Louis564.8★ (2,141)Ballwin, 22 mi away24/7Most reviews
4Shamrock Sewer & Drain554.8★ (304)Pacific, 23 mi away24/7—
5Shults Septic Service, LLC545.0★ (15)Belleville, 22 mi away24/7—
6Sewer Solution Pros545.0★ (77)Arnold, 8 mi awaySat—
7A.E.S. Inc. Septic Solutions543.3★ (7)FestusSat—
8Wallach Septic Service524.2★ (56)Wildwood, 16 mi away——
9King Septic Service, Inc.524.8★ (61)Wildwood, 19 mi away——
10J & J Septic and Sewer Cleaning524.7★ (40)Waterloo, 16 mi away——

The 29 best septic service companies in Festus, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  4. #4 Shamrock Sewer & Drain

    Based in Pacific, 23 mi away

    55/100CR Score

    Ranked #4 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.

    • 4.8★ from 304 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2084 McNamee Rd, Pacific, MO 63069
    View profile for Shamrock Sewer & Drain(314) 882-0857

  5. #5 Shults Septic Service, LLC

    Based in Belleville, 22 mi away

    54/100CR Score

    Ranked #5 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.

    • 5.0★ from 15 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5656 Saxtown Rd, Millstadt, IL 62260
    View profile for Shults Septic Service, LLC(618) 444-8875

  6. #6 Sewer Solution Pros

    Based in Arnold, 8 mi away

    54/100CR Score

    Ranked #6 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.

    • 5.0★ from 77 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 9 AM–3 PM · Sun closed
    View profile for Sewer Solution Pros(314) 471-1799

  7. #7 A.E.S. Inc. Septic Solutions

    Based in Festus

    54/100CR Score

    Ranked #7 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.

    • 3.3★ from 7 Google reviews
    Hours
    Mon–Sat 8 AM–5 PM · Sun closed
    Address
    1222 Spring Bluff Rd, Festus, MO 63028
    View profile for A.E.S. Inc. Septic Solutions(636) 937-9876

  9. #9 King Septic Service, Inc.

    Based in Wildwood, 19 mi away

    52/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.8★ from 61 Google reviews, listed on Google as “Septic system service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 61 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    8739 Byrnesville Rd, Cedar Hill, MO 63016
    View profile for King Septic Service, Inc.(636) 274-4589

  10. #10 J & J Septic and Sewer Cleaning

    Based in Waterloo, 16 mi away

    52/100CR Score

    Ranked #10 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.

    • 4.7★ from 40 Google reviews
    Hours
    Mon–Fri 7 AM–4 PM · Sat–Sun closed
    Address
    5574 Sportsman Rd, Waterloo, IL 62298
    View profile for J & J Septic and Sewer Cleaning(618) 939-3001

  15. #15 Superior Sewer Co

    Based in St. Louis, 20 mi away

    50/100CR Score

    Ranked #15 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.

    • 4.8★ from 183 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    11084 Gravois Industrial Ct, St. Louis, MO 63128
    View profile for Superior Sewer Co(314) 293-3287

  16. #16 Big Steve's Septic Service

    Based in Bonne Terre, 22 mi away

    49/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.0★ from 46 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.0★ from 46 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    216 Jane St, Bonne Terre, MO 63628
    View profile for Big Steve's Septic Service(573) 430-2966

  23. #23 Sewer-Oscopy

    Based in St. Louis, 18 mi away

    47/100CR Score

    Ranked #23 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.

    • 3.9★ from 30 Google reviews
    Address
    5660 Telegraph Rd, St. Louis, MO 63129
    View profile for Sewer-Oscopy(314) 703-3608

All 29 septic service companies

#1 to #25 are shown in full above. Here are #26 to #29, in CR Score order; each links to its profile.

septic service companies in Festus, ranks 26 to 29
RankBusinessCR ScoreGoogle ratingDistance
26Ron's Plumbing & Sewer Service454.3★ (32)24 mi
27Joe's Plumbing Drain & Sewer Service, LLC444.3★ (7)18 mi
28J Higgins Plumbing & Septic Co443.9★ (43)22 mi
29Tony's Sewer & Drain Co424.7★ (3)22 mi

Also serving Festus

3 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.

Unranked septic service companies serving Festus
BusinessGoogle ratingDistance
Drain Cleaning St Louis5.0★ (1)24 mi
Eleven Eleven Excavating LLC5.0★ (1)24 mi
H & H Sewer & Pipe Cleaning5.0★ (1)19 mi

How we ranked Festus septic service companies

We scored 29 Festus 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Festus data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Septic service companies in Festus: frequently asked questions

Who is the best septic service company in Festus?

By CR Score, the highest-ranked septic service company in Festus, MO is Oberkramer Septic Solutions, LLC with a CR Score of 57/100. It has 5.0★ from 105 Google reviews. River City Sewer& Drain, L.L.C. (#2) and Mr. Rooter Plumbing of St. Louis (#3) follow. We ranked 29 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Festus?

ContractorsRanked ranks 29 septic service companies serving Festus, MO. 2 of them are based in Festus; the rest serve it from nearby towns. Another 3 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Festus are open 24/7?

8 ranked septic service companies in Festus post 24/7 hours. The highest-ranked are River City Sewer& Drain, L.L.C. (#2), Mr. Rooter Plumbing of St. Louis (#3) and Shamrock Sewer & Drain (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Festus work on weekends?

13 of 29 ranked septic service companies post Saturday hours and 10 post Sunday hours. The highest-ranked open Saturdays are River City Sewer& Drain, L.L.C. (#2), Mr. Rooter Plumbing of St. Louis (#3) and Shamrock Sewer & Drain (#4). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Festus septic service companies have?

The median Google rating among 29 rated septic service companies in Festus is 4.7★, with a median of 36 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 Festus count in this ranking?

Yes, if they are within 25 mi of the Festus 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 Festus

  1. November 2026: CR Scores recalculated for 29 septic service companies serving Festus.

More septic service companies and Festus pages

Other trades in Festus