64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 498 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Pontiac, MI (2026)
105 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Pontiac: M & M Septic, CR Score 64/100; 4.9★ from 498 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Septic Pro, posts 24/7 hours; ranked #2 of 105.
- 6
Most-reviewed: Universal Plumbing and Sewer, 2,503 Google reviews at 4.9★, the most of 105 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
105 Pontiac septic service companies are ranked here by CR Score, from ten published factors. 40 are open 24/7, 62 open Saturdays and 49 open Sundays, based on posted hours. The median Google rating is 4.7★ across 105 rated businesses.
Most of this list also appears on the Septic service companies in Troy ranking. See Septic service companies in Troy
Top 10 septic service companies in Pontiac at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | M & M Septic | 64 | 4.9★ (498) | Waterford, 8 mi away | 24/7 | Overall |
| 2 | Septic Pro | 61 | 5.0★ (177) | Waterford, 13 mi away | 24/7 | Emergencies |
| 3 | Cregger Plumbing, Heating, Cooling & Electrical | 61 | 4.9★ (206) | Farmington, 13 mi away | 24/7 | — |
| 4 | Universal Plumbing And Sewer, Inc. | 60 | 4.9★ (378) | Auburn Hills, 5 mi away | 24/7 | — |
| 5 | Harvey and Sons Septic Service | 60 | 4.8★ (137) | Sterling Heights, 12 mi away | 24/7 | — |
| 6 | Universal Plumbing and Sewer | 59 | 4.9★ (2,503) | Clinton Township, 21 mi away | 24/7 | Most reviews |
| 7 | Drain Shark Affordable Drain and Sewer Cleaning | 58 | 5.0★ (67) | Fenton, 3 mi away | 24/7 | — |
| 8 | Oakland Home Inspections LLC | 58 | 4.7★ (92) | Walled Lake, 11 mi away | Sat · Sun · Evenings | — |
| 9 | Sewer23™ - Plumbing, Sewer & Drain Cleaning | 57 | 5.0★ (151) | Farmington Hills, 11 mi away | 24/7 | — |
| 10 | B & B Sewer Cleaning & Septic Tank Pumping | 57 | 4.4★ (40) | Waterford, 4 mi away | Sat · Sun · Evenings | — |
The 105 best septic service companies in Pontiac, 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.
#2 Septic Pro
Based in Waterford, 13 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 177 Google reviews, listed on Google as “Septic system service”.
Based in Farmington, 13 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 206 Google reviews, listed on Google as “Septic system service”.
Based in Auburn Hills, 5 mi away
60/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 378 Google reviews.
Based in Sterling Heights, 12 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 137 Google reviews, listed on Google as “Septic system service”.
Based in Clinton Township, 21 mi away
59/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 2,503 Google reviews, the most in Pontiac.
Based in Fenton, 3 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Plumber”.
Based in Walled Lake, 11 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 92 Google reviews, listed on Google as “Septic system service”.
Based in Farmington Hills, 11 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Plumber”.
Based in Waterford, 4 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.4★ from 40 Google reviews, listed on Google as “Septic system service”.
#11 Michigan Waste
Based in Waterford, 5 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.1★ from 11 Google reviews, listed on Google as “Septic system service”.
Based in Flint, 22 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Septic system service”.
Based in Milford, 8 mi away
57/100CR ScoreRanked #13 because of its Google rating and review volume: 4.7★ from 644 Google reviews.
Based in Pontiac
57/100CR ScoreRanked #14 because of its Google rating and review volume: 4.8★ from 140 Google reviews.
Based in Fraser, 19 mi away
57/100CR ScoreRanked #15 because of its Google rating and review volume: 4.9★ from 390 Google reviews.
Based in Waterford, 5 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Septic system service”.
Based in Warren, 19 mi away
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 292 Google reviews.
#18 Pelkey Services
Based in Waterford, 15 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.
Based in Waterford, 9 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 127 Google reviews, listed on Google as “Septic system service”.
Based in Farmington Hills, 5 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 69 Google reviews, listed on Google as “Septic system service”.
Based in Royal Oak, 10 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Drainage service”.
Based in Royal Oak, 13 mi away
55/100CR ScoreRanked #22 because of its Google rating and review volume: 4.8★ from 1,624 Google reviews.
Based in Auburn Hills, 7 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.4★ from 75 Google reviews, listed on Google as “Plumber”.
Based in Livonia, 12 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Dearborn, 18 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 188 Google reviews, listed on Google as “Plumber”.
How we ranked Pontiac septic service companies
We scored 105 Pontiac 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 Pontiac 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 Pontiac: frequently asked questions
Who is the best septic service company in Pontiac?
By CR Score, the highest-ranked septic service company in Pontiac, MI is M & M Septic with a CR Score of 64/100. It has 4.9★ from 498 Google reviews. It is open 24/7. Septic Pro (#2) and Cregger Plumbing, Heating, Cooling & Electrical (#3) follow. We ranked 105 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Pontiac?
ContractorsRanked ranks 105 septic service companies serving Pontiac, MI. 1 of them is based in Pontiac; the rest serve it from nearby towns. Counts are as of November 2026.
Which septic service companies in Pontiac are open 24/7?
40 ranked septic service companies in Pontiac post 24/7 hours. The highest-ranked are M & M Septic (#1), Septic Pro (#2) and Cregger Plumbing, Heating, Cooling & Electrical (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Pontiac work on weekends?
62 of 105 ranked septic service companies post Saturday hours and 49 post Sunday hours. The highest-ranked open Saturdays are M & M Septic (#1), Septic Pro (#2) and Cregger Plumbing, Heating, Cooling & Electrical (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Pontiac septic service companies have?
The median Google rating among 105 rated septic service companies in Pontiac is 4.7★, with a median of 36 reviews. Universal Plumbing and Sewer has the most, 2,503 reviews, and ranks #6. 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 Pontiac count in this ranking?
Yes, if they are within 25 mi of the Pontiac 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 Pontiac
- November 2026: CR Scores recalculated for 105 septic service companies serving Pontiac.
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