65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 110 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 Flint, MI (2026)
29 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Flint: KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap, CR Score 65/100; 4.9★ from 110 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): American Sewer Cleaners, posts 24/7 hours; ranked #2 of 29.
- 2
Most-reviewed: American Sewer Cleaners, 456 Google reviews at 4.4★, the most of 29 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
29 Flint septic service companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 22 open Saturdays and 15 open Sundays, based on posted hours. The median Google rating is 4.9★ across 29 rated businesses.
Top 10 septic service companies in Flint at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap | 65 | 4.9★ (110) | Flint | 24/7 | Overall |
| 2 | American Sewer Cleaners | 64 | 4.4★ (456) | Burton, 3 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Down and Dirty Sewer LLC | 64 | 4.9★ (79) | Flint | 24/7 | — |
| 4 | Don's Septic Tank Cleaning | 60 | 4.7★ (63) | Flushing, 9 mi away | 24/7 | — |
| 5 | Sinks & Sewers LLC | 60 | 5.0★ (64) | Flint | 24/7 | — |
| 6 | KD's Septic Services | Septic Pump | Septic Cleanout, Grease Trap | 60 | 5.0★ (13) | Flint | 24/7 | — |
| 7 | Kincaid Septic Services and Porta Potty Rentals | 60 | 4.9★ (45) | Swartz Creek, 11 mi away | 24/7 | — |
| 8 | KT Septic Evaluation LLC | 60 | 4.9★ (167) | Waterford, 18 mi away | Sat · Sun · Evenings | — |
| 9 | Don's Lil Johns Porta-Johns and Septic Pumping | 59 | 4.8★ (111) | Flint | — | — |
| 10 | 4M's Septic & Sewer | 59 | 5.0★ (75) | Flint | — | — |
The 29 best septic service companies in Flint, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Burton, 3 mi away
64/100CR ScoreRanked #2 because of its Google rating and review volume: 4.4★ from 456 Google reviews, the most in Flint.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flushing, 9 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 63 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ 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 Swartz Creek, 11 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterford, 18 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 167 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 75 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lapeer, 23 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.5★ from 415 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fenton, 13 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
56/100CR ScoreRanked #13 because of its Google rating and review volume: 4.4★ from 245 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Pelkey Services
Based in Waterford, 20 mi away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ 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 Waterford, 15 mi away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.4★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Fenton, 1 mi away
53/100CR ScoreRanked #16 because of its Google rating and review volume: 4.8★ from 60 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grand Blanc, 7 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Livonia, 21 mi away
53/100CR ScoreRanked #18 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 Flushing, 9 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Flint
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.5★ from 38 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterford, 25 mi away
52/100CR ScoreRanked #21 because of its Google rating and review volume: 4.8★ from 132 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Flint
52/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterford, 23 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burton, 4 mi away
51/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burton, 7 mi away
51/100CR ScoreRanked #25 because of its Google rating and review volume: 4.6★ from 49 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
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.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Brendel's Septic Tank Services, Trucking and Portable Restrooms | 51 | 4.4★ (64) | 24 mi |
| 27 | Ewers Septic Tank Services | 50 | 4.5★ (20) | 25 mi |
| 28 | Harada & Westesson Corp. Excavating & Grading ( H & W Corp. ) | 50 | 5.0★ (19) | 7 mi |
| 29 | Kieft Engineering Inc | 47 | 4.4★ (7) | 24 mi |
Also serving Flint
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 |
|---|---|---|
| 310 Group | 3.0★ (2) | 25 mi |
| Affordable Plumbing Sewer Co | 5.0★ (1) | In Flint |
| Alert Sewer Co | 5.0★ (1) | 3 mi |
| C&C Outdoor Services | 5.0★ (2) | In Flint |
| Diem Septic Tank Installers | 5.0★ (1) | In Flint |
| Durfee Sewer and Drain Service | 25 mi | |
| Hall's Sewer Services | 24 mi | |
| legacy inc | 1.0★ (1) | In Flint |
| Rhein's Sewer & Septic Tank | 23 mi | |
| Sewer-Man | 11 mi | |
| Universal Septic Services of Genesee County | In Flint |
How we ranked Flint septic service companies
We scored 29 Flint 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 Flint 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 Flint: frequently asked questions
Who is the best septic service company in Flint?
By CR Score, the highest-ranked septic service company in Flint, MI is KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap with a CR Score of 65/100. It has 4.9★ from 110 Google reviews. It is open 24/7. American Sewer Cleaners (#2) and Down and Dirty Sewer LLC (#3) follow. We ranked 29 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Flint?
ContractorsRanked ranks 29 septic service companies serving Flint, MI. 9 of them are based in Flint; 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 Flint are open 24/7?
12 ranked septic service companies in Flint post 24/7 hours. The highest-ranked are KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap (#1), American Sewer Cleaners (#2) and Down and Dirty Sewer LLC (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Flint work on weekends?
22 of 29 ranked septic service companies post Saturday hours and 15 post Sunday hours. The highest-ranked open Saturdays are KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap (#1), American Sewer Cleaners (#2) and Down and Dirty Sewer LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Flint septic service companies have?
The median Google rating among 29 rated septic service companies in Flint is 4.9★, with a median of 49 reviews. American Sewer Cleaners has the most, 456 reviews, and ranks #2. 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 Flint count in this ranking?
Yes, if they are within 25 mi of the Flint 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 Flint
- November 2026: CR Scores recalculated for 29 septic service companies serving Flint.
More septic service companies and Flint pages
Septic service companies near Flint
- Septic service companies in Burton, MI40 ranked
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