62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 2,503 Google reviews, the most in Harper Woods.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Harper Woods, MI (2026)
86 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Harper Woods: Universal Plumbing and Sewer, CR Score 62/100; 4.9★ from 2,503 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): H2O Plumbing, Sewer and Drain, posts 24/7 hours; ranked #2 of 86.
- 20
Most-reviewed: WaterWork Plumbing, 2,193 Google reviews at 4.7★, the most of 86 ranked after Universal Plumbing and Sewer; ranked #20.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
86 Harper Woods septic service companies are ranked here by CR Score, from ten published factors. 35 are open 24/7, 55 open Saturdays and 41 open Sundays, based on posted hours. The median Google rating is 4.7★ across 86 rated businesses.
Top 10 septic service companies in Harper Woods at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Universal Plumbing and Sewer | 62 | 4.9★ (2,503) | Clinton Township, 9 mi away | 24/7 | Overall |
| 2 | H2O Plumbing, Sewer and Drain | 60 | 4.9★ (292) | Warren, 5 mi away | 24/7 | Emergencies |
| 3 | H2O Plumbing and Sewer | 60 | 4.9★ (390) | Fraser, 7 mi away | 24/7 | — |
| 4 | Harvey and Sons Septic Service | 59 | 4.8★ (137) | Sterling Heights, 14 mi away | 24/7 | — |
| 5 | Cregger Plumbing, Heating, Cooling & Electrical | 58 | 4.9★ (206) | Farmington, 23 mi away | 24/7 | — |
| 6 | Southern Mechanical Plumbing/Sewer Cleaning Detroit Mi | 56 | 4.7★ (188) | Dearborn, 12 mi away | 24/7 | — |
| 7 | EA Sewer Cleaning and Snake Business | 56 | 5.0★ (48) | Dearborn, 9 mi away | 24/7 | — |
| 8 | Nelson Bros. Sewer & Plumbing | 55 | 4.8★ (1,624) | Royal Oak, 11 mi away | — | — |
| 9 | Sewer23™ - Plumbing, Sewer & Drain Cleaning | 55 | 5.0★ (151) | Farmington Hills, 21 mi away | 24/7 | — |
| 10 | Frost & Kretsch Plumbing | 55 | 4.6★ (195) | Warren, 6 mi away | 24/7 | — |
The 86 best septic service companies in Harper Woods, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Warren, 5 mi away
60/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 292 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fraser, 7 mi away
60/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 390 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sterling Heights, 14 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 137 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmington, 23 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 206 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dearborn, 12 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 188 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dearborn, 9 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 48 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Royal Oak, 11 mi away
55/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 1,624 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Farmington Hills, 21 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Warren, 6 mi away
55/100CR ScoreRanked #10 because of its Google rating and review volume: 4.6★ from 195 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Royal Oak, 15 mi away
54/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Drainage service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Warren, 4 mi away
54/100CR ScoreRanked #12 because of its Google rating and trade focus: 3.9★ from 43 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clinton Township, 17 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.4★ from 26 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Westland, 24 mi away
53/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 213 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dearborn, 14 mi away
53/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 80 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Roseville, 6 mi away
53/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 98 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Baltimore, 16 mi away
53/100CR ScoreRanked #17 because of its Google rating and review volume: 4.7★ from 235 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Windsor, 19 mi away
53/100CR ScoreRanked #18 because of its Google rating and review volume: 4.3★ from 314 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn Hills, 18 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.5★ from 99 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ferndale, 10 mi away
53/100CR ScoreRanked #20 because of its Google rating and review volume: 4.7★ from 2,193 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 Harvey & Sons
Based in Clinton Township, 12 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.2★ from 13 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterford, 24 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 40 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fraser, 7 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wyandotte, 21 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 98 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Warren, 4 mi away
52/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
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 86 ranked septic service companies here; the rest are on their profiles.
Also serving Harper Woods
20 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 |
|---|---|---|
| A-1 Hydrovac Contracting Inc. | 5.0★ (2) | 19 mi |
| Advanced Sewer and Drain Cleaning Co. | 4.0★ (1) | 22 mi |
| Alda Brothers Sewer and Drain Cleaners | 2 mi | |
| B & B Sewer Drain Cleaning | 3.0★ (1) | 23 mi |
| Blockbuster Sewer & Drain Cleaning | 14 mi | |
| Dun-Rite Plumbing & Sewer | 10 mi | |
| EZ-Enviro Supply & Svc | 4.0★ (2) | 20 mi |
| IronValve Plumbing & Drain Services Windsor | 5.0★ (1) | 11 mi |
| LANDMARKER CONSTRUCTION | 5.0★ (2) | 6 mi |
| Magic Rooter Plumbing Sewer & Drain Cleaning | 8 mi | |
| Main Drain Sewer & Repair | 14 mi | |
| Mr. Drain The Sewer Specialist | 11 mi | |
| Phoenix Drainage | 5.0★ (1) | 14 mi |
| Plumber Windsor | 8 mi | |
| Pride Plumbing & Electric Sewer | 5.0★ (2) | 24 mi |
| Proper Maintenance Plumbing and Sewer Service | 4 mi | |
| R & T Sewer Cleaning | 5.0★ (1) | 7 mi |
| Rapid Sewer Data | 5.0★ (1) | 24 mi |
| The Drain& Sewer Co. | 9 mi | |
| Underground Eye Sewer Camera | 5.0★ (1) | 11 mi |
How we ranked Harper Woods septic service companies
We scored 86 Harper Woods 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 Harper Woods 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 Harper Woods: frequently asked questions
Who is the best septic service company in Harper Woods?
By CR Score, the highest-ranked septic service company in Harper Woods, MI is Universal Plumbing and Sewer with a CR Score of 62/100. It has 4.9★ from 2,503 Google reviews. It is open 24/7. H2O Plumbing, Sewer and Drain (#2) and H2O Plumbing and Sewer (#3) follow. We ranked 86 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Harper Woods?
ContractorsRanked ranks 86 septic service companies serving Harper Woods, MI. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Harper Woods are open 24/7?
35 ranked septic service companies in Harper Woods post 24/7 hours. The highest-ranked are Universal Plumbing and Sewer (#1), H2O Plumbing, Sewer and Drain (#2) and H2O Plumbing and Sewer (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Harper Woods work on weekends?
55 of 86 ranked septic service companies post Saturday hours and 41 post Sunday hours. The highest-ranked open Saturdays are Universal Plumbing and Sewer (#1), H2O Plumbing, Sewer and Drain (#2) and H2O Plumbing and Sewer (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Harper Woods septic service companies have?
The median Google rating among 86 rated septic service companies in Harper Woods is 4.7★, with a median of 33 reviews. Universal Plumbing and Sewer has the most, 2,503 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 Harper Woods count in this ranking?
Yes, if they are within 25 mi of the Harper Woods 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 Harper Woods
- November 2026: CR Scores recalculated for 86 septic service companies serving Harper Woods.
More septic service companies and Harper Woods pages
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