62/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 244 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 Greenwich, CT (2026)
183 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Greenwich: Andersons Septic Service, CR Score 62/100; 5.0★ from 244 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): A & L Cesspool, posts 24/7 hours; ranked #2 of 183.
- 4
Most-reviewed: Citywide Sewer-Drain & Plumbing Corp, 1,423 Google reviews at 4.8★, the most of 183 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
183 Greenwich septic service companies are ranked here by CR Score, from ten published factors. 108 are open 24/7, 136 open Saturdays and 122 open Sundays, based on posted hours. The median Google rating is 4.9★ across 183 rated businesses.
Top 10 septic service companies in Greenwich at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Andersons Septic Service | 62 | 5.0★ (244) | Wilton, 16 mi away | 24/7 | Overall |
| 2 | A & L Cesspool | 60 | 4.8★ (469) | Brooklyn, 23 mi away | 24/7 | Emergencies |
| 3 | Express Sewer, Drain Cleaning & Repairs Inc . | 59 | 5.0★ (518) | The Bronx, 17 mi away | 24/7 | — |
| 4 | Citywide Sewer-Drain & Plumbing Corp | 59 | 4.8★ (1,423) | East Garden City, 19 mi away | 24/7 | Most reviews |
| 5 | Fred A. Cook Jr. Inc. | 59 | 4.8★ (283) | Peekskill, 23 mi away | 24/7 | — |
| 6 | Rick's Pump and Water Service | 59 | 4.9★ (171) | Danbury, 23 mi away | 24/7 | — |
| 7 | White Wolf Cesspool Services | 59 | 4.9★ (729) | Commack, 23 mi away | — | — |
| 8 | A&M Pumps | 58 | 5.0★ (34) | Jefferson Valley-Yorktown, 13 mi away | 24/7 | — |
| 9 | Al Dexter Septic & Drainage | 58 | 4.8★ (48) | Stamford, 14 mi away | 24/7 | — |
| 10 | DC NY Sewer and Mechanical | 58 | 5.0★ (108) | Englewood Cliffs, 8 mi away | 24/7 | — |
The 183 best septic service companies in Greenwich, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Brooklyn, 23 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 469 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in The Bronx, 17 mi away
59/100CR ScoreRanked #3 because of its Google rating and review volume: 5.0★ from 518 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Garden City, 19 mi away
59/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 1,423 Google reviews, the most in Greenwich.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peekskill, 23 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 283 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Danbury, 23 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Commack, 23 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 729 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#8 A&M Pumps
Based in Jefferson Valley-Yorktown, 13 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stamford, 14 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Englewood Cliffs, 8 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 108 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New York City, 19 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in White Plains, 8 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 111 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sleepy Hollow, 11 mi away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.6★ from 27 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Glen Cove, 12 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 22 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stamford, 5 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in White Plains, 7 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Darien, 8 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chestnut Ridge, 20 mi away
57/100CR ScoreRanked #18 because of its Google rating and review volume: 5.0★ from 287 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Yonkers, 14 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New City, 15 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stamford, 6 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brentwood, 19 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oyster Bay, 12 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Huntington Station, 17 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stamford, 6 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 31 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 183 ranked septic service companies here; the rest are on their profiles.
Also serving Greenwich
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 |
|---|---|---|
| Anthony's Sewer & Drain, llc | 5.0★ (2) | 8 mi |
| Atomic Rooter Plumbing Sewer and Drain Cleaning | 5.0★ (2) | 5 mi |
| AZ Sewers & Drain Services | 5.0★ (2) | 11 mi |
| Better Home Sewerage Service | 5.0★ (2) | 12 mi |
| College Point Plumbing & Sewer | 3.0★ (2) | 20 mi |
| Highland Sewer & Drain Services | 3.0★ (2) | 4 mi |
| JC Land & Site Development, INC | 5.0★ (2) | 16 mi |
| John's Sewer Cleaning | 5.0★ (2) | 21 mi |
| Mc Lean Sewer & Drain | 5.0★ (2) | 16 mi |
| Mr. Rooter Plumbing of Queens | 3.0★ (2) | 19 mi |
| Nassau County Plumbing and Sewer Rooter | 5.0★ (2) | 21 mi |
| North Star Sewer Services | 5.0★ (2) | 18 mi |
| Nyack Sewer & Drain | 1.0★ (2) | 16 mi |
| Powell Septic Services Inc | 5.0★ (2) | 15 mi |
| Premium Sewer & Drain | 3.0★ (2) | 7 mi |
| Sam's Septic Cleaning | 3.0★ (2) | 11 mi |
| Santini Septic Services | 1.0★ (2) | 19 mi |
| Sewer Equipment Co of America | In Greenwich | |
| Sluggo's Sewer & Drain Service, LLC | 3.0★ (2) | 18 mi |
| The Brothers Sewer & Drain Co. | 1.0★ (2) | 13 mi |
How we ranked Greenwich septic service companies
We scored 183 Greenwich 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 2, 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 Greenwich 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 Greenwich: frequently asked questions
Who is the best septic service company in Greenwich?
By CR Score, the highest-ranked septic service company in Greenwich, CT is Andersons Septic Service with a CR Score of 62/100. It has 5.0★ from 244 Google reviews. It is open 24/7. A & L Cesspool (#2) and Express Sewer, Drain Cleaning & Repairs Inc . (#3) follow. We ranked 183 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Greenwich?
ContractorsRanked ranks 183 septic service companies serving Greenwich, CT. 2 of them are based in Greenwich; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Greenwich are open 24/7?
108 ranked septic service companies in Greenwich post 24/7 hours. The highest-ranked are Andersons Septic Service (#1), A & L Cesspool (#2) and Express Sewer, Drain Cleaning & Repairs Inc . (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Greenwich work on weekends?
136 of 183 ranked septic service companies post Saturday hours and 122 post Sunday hours. The highest-ranked open Saturdays are Andersons Septic Service (#1), A & L Cesspool (#2) and Express Sewer, Drain Cleaning & Repairs Inc . (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Greenwich septic service companies have?
The median Google rating among 183 rated septic service companies in Greenwich is 4.9★, with a median of 20 reviews. Citywide Sewer-Drain & Plumbing Corp has the most, 1,423 reviews, and ranks #4. 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 Greenwich count in this ranking?
Yes, if they are within 25 mi of the Greenwich 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 Greenwich
- November 2026: CR Scores recalculated for 183 septic service companies serving Greenwich.
- November 2026: 3 duplicate listings merged.
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