62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.4★ from 456 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Grand Blanc, MI (2026)
54 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Grand Blanc: American Sewer Cleaners, CR Score 62/100; 4.4★ from 456 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap, posts 24/7 hours; ranked #2 of 54.
- 19
Most-reviewed: Steve's Waterworks Plumbing, 644 Google reviews at 4.7★, the most of 54 ranked; ranked #19.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
54 Grand Blanc septic service companies are ranked here by CR Score, from ten published factors. 21 are open 24/7, 37 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.8★ across 54 rated businesses.
Top 10 septic service companies in Grand Blanc at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | American Sewer Cleaners | 62 | 4.4★ (456) | Burton, 9 mi away | 24/7 | Overall |
| 2 | KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap | 62 | 4.9★ (110) | Flint, 11 mi away | 24/7 | Emergencies |
| 3 | M & M Septic | 62 | 4.9★ (498) | Waterford, 24 mi away | 24/7 | — |
| 4 | Down and Dirty Sewer LLC | 61 | 4.9★ (79) | Flint, 9 mi away | 24/7 | — |
| 5 | Septic Pro | 61 | 5.0★ (177) | Waterford, 19 mi away | 24/7 | — |
| 6 | Kincaid Septic Services and Porta Potty Rentals | 59 | 4.9★ (45) | Swartz Creek, 13 mi away | 24/7 | — |
| 7 | Sinks & Sewers LLC | 59 | 5.0★ (64) | Flint, 4 mi away | 24/7 | — |
| 8 | Don's Septic Tank Cleaning | 59 | 4.7★ (63) | Flushing, 15 mi away | 24/7 | — |
| 9 | KT Septic Evaluation LLC | 58 | 4.9★ (167) | Waterford, 23 mi away | Sat · Sun · Evenings | — |
| 10 | Universal Plumbing And Sewer, Inc. | 58 | 4.9★ (378) | Auburn Hills, 21 mi away | 24/7 | — |
The 54 best septic service companies in Grand Blanc, 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 Flint, 11 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 110 Google reviews, listed on Google as “Septic system service”.
#3 M & M Septic
Based in Waterford, 24 mi away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 498 Google reviews, listed on Google as “Septic system service”.
Based in Flint, 9 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Septic system service”.
#5 Septic Pro
Based in Waterford, 19 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 177 Google reviews, listed on Google as “Septic system service”.
Based in Swartz Creek, 13 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “Septic system service”.
Based in Flint, 4 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Plumber”.
Based in Flushing, 15 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 63 Google reviews, listed on Google as “Septic system service”.
Based in Waterford, 23 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 167 Google reviews, listed on Google as “Septic system service”.
Based in Auburn Hills, 21 mi away
58/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 378 Google reviews.
Based in Fenton, 8 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Septic system service”.
Based in Flint, 8 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 75 Google reviews, listed on Google as “Septic system service”.
#13 Pelkey Services
Based in Waterford, 13 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.
Based in Flint, 14 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.
Based in Lapeer, 21 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.5★ from 415 Google reviews, listed on Google as “Septic system service”.
Based in Howell, 23 mi away
56/100CR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 221 Google reviews.
Based in Waterford, 9 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.4★ from 8 Google reviews, listed on Google as “Septic system service”.
Based in Flint, 12 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “Septic system service”.
Based in Milford, 21 mi away
55/100CR ScoreRanked #19 because of its Google rating and review volume: 4.7★ from 644 Google reviews, the most in Grand Blanc.
Based in Grand Blanc
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Concrete contractor”.
Based in Flint, 4 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.4★ from 245 Google reviews.
Based in Livonia, 15 mi away
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Fenton, 23 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Plumber”.
Based in Waterford, 21 mi away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 127 Google reviews, listed on Google as “Septic system service”.
Based in Waterford, 18 mi away
53/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 132 Google reviews.
Septic service companies ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 54 ranked septic service companies here; the rest are on their profiles.
Also serving Grand Blanc
13 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) | 18 mi |
| Affordable Plumbing Sewer Co | 5.0★ (1) | 4 mi |
| Alert Sewer Co | 5.0★ (1) | 4 mi |
| Brendel Excavating Inc | 5.0★ (1) | 19 mi |
| C&C Outdoor Services | 5.0★ (2) | 14 mi |
| Diem Septic Tank Installers | 5.0★ (1) | 4 mi |
| DNR sewer cleaning | 5.0★ (1) | 24 mi |
| John's Plumbing, Inc of Milford | 5.0★ (2) | 25 mi |
| legacy inc | 1.0★ (1) | 7 mi |
| R. J. Lewis Services | 4.0★ (1) | 20 mi |
| Rhein's Sewer & Septic Tank | 21 mi | |
| Sewer-Man | 7 mi | |
| Universal Septic Services of Genesee County | 6 mi |
How we ranked Grand Blanc septic service companies
We scored 54 Grand Blanc 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 Grand Blanc 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 Grand Blanc: frequently asked questions
Who is the best septic service company in Grand Blanc?
By CR Score, the highest-ranked septic service company in Grand Blanc, MI is American Sewer Cleaners with a CR Score of 62/100. It has 4.4★ from 456 Google reviews. It is open 24/7. KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap (#2) and M & M Septic (#3) follow. We ranked 54 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Grand Blanc?
ContractorsRanked ranks 54 septic service companies serving Grand Blanc, MI. 1 of them is based in Grand Blanc; the rest serve it from nearby towns. Another 13 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Grand Blanc are open 24/7?
21 ranked septic service companies in Grand Blanc post 24/7 hours. The highest-ranked are American Sewer Cleaners (#1), KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap (#2) and M & M Septic (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Grand Blanc work on weekends?
37 of 54 ranked septic service companies post Saturday hours and 29 post Sunday hours. The highest-ranked open Saturdays are American Sewer Cleaners (#1), KD's Septic Services | Septic Pump, Septic Cleanout, Grease Trap (#2) and M & M Septic (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Grand Blanc septic service companies have?
The median Google rating among 54 rated septic service companies in Grand Blanc is 4.8★, with a median of 47 reviews. Steve's Waterworks Plumbing has the most, 644 reviews, and ranks #19. 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 Grand Blanc count in this ranking?
Yes, if they are within 25 mi of the Grand Blanc 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 Grand Blanc
- November 2026: CR Scores recalculated for 54 septic service companies serving Grand Blanc.
More septic service companies and Grand Blanc pages
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