62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 111 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 Old Saybrook, CT (2026)
67 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Old Saybrook: Anderson Bros Sanitation & Excavating Inc, CR Score 62/100; 4.9★ from 111 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Quackenbush Cesspools Inc, posts 24/7 hours; ranked #2 of 67.
- 19
Most-reviewed: Drainworks Plumbing & Septic LLC, 1,362 Google reviews at 4.8★, the most of 67 ranked; ranked #19.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
67 Old Saybrook septic service companies are ranked here by CR Score, from ten published factors. 19 are open 24/7, 35 open Saturdays and 25 open Sundays, based on posted hours. The median Google rating is 4.8★ across 67 rated businesses.
Top 10 septic service companies in Old Saybrook at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Anderson Bros Sanitation & Excavating Inc | 62 | 4.9★ (111) | Branford, 9 mi away | 24/7 | Overall |
| 2 | Quackenbush Cesspools Inc | 61 | 5.0★ (579) | Hampton Bays, 25 mi away | 24/7 | Emergencies |
| 3 | Septic System Solutions Higganum- Vincent Madore | 60 | 4.9★ (66) | Meriden, 13 mi away | 24/7 | — |
| 4 | Modern Home Inspections LLC | 59 | 5.0★ (907) | Meriden, 25 mi away | Sat · Evenings | — |
| 5 | Beers Inc | 59 | 4.7★ (50) | Waterford, 7 mi away | 24/7 | — |
| 6 | Monoflo Septic Tank Co | 58 | 4.4★ (10) | Guilford, 3 mi away | 24/7 | — |
| 7 | John J Doerrer Inc | 57 | 4.8★ (17) | Guilford, 6 mi away | Sat · Sun | — |
| 8 | New London County Septic & Excavation | 57 | 4.8★ (50) | Ledyard, 20 mi away | 24/7 | — |
| 9 | SepTech LLC. | 57 | 5.0★ (30) | Old Saybrook | — | — |
| 10 | Septic Inspections By Earthworm Septic Services | 57 | 4.8★ (45) | Montville Center, 15 mi away | 24/7 | — |
The 67 best septic service companies in Old Saybrook, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Hampton Bays, 25 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 579 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Meriden, 13 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 66 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Meriden, 25 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 907 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#5 Beers Inc
Based in Waterford, 7 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 50 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Guilford, 3 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.4★ from 10 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Guilford, 6 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ledyard, 20 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#9 SepTech LLC.
Based in Old Saybrook
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Montville Center, 15 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ 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 East Haddam, 20 mi away
56/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 220 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Branford, 20 mi away
56/100CR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 742 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New London, 13 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Guilford, 4 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 19 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Guilford, 4 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterford, 13 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Old Saybrook
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.6★ from 18 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#18 StarkWorks
Based in Waterford, 6 mi away
55/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in East Haddam, 20 mi away
54/100CR ScoreRanked #19 because of its Google rating and review volume: 4.8★ from 1,362 Google reviews, the most in Old Saybrook.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Old Saybrook
54/100CR ScoreRanked #20 because of its Google rating and availability: 4.6★ from 18 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Madison, 12 mi away
53/100CR ScoreRanked #21 because of its Google rating and review volume: 4.8★ from 55 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Branford, 8 mi away
53/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Branford, 9 mi away
53/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.4★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Madison, 6 mi away
53/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Meriden, 20 mi away
53/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 30 Google reviews, listed on Google as “Septic system service”.
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 67 ranked septic service companies here; the rest are on their profiles.
Also serving Old Saybrook
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 |
|---|---|---|
| American Rooter | 7 mi | |
| Anytime Sewer & Drain Services | 1.0★ (1) | 24 mi |
| Bill Walter & Sons Septic Services | 5.0★ (1) | 8 mi |
| Bill Walter & Sons Septic Services | 9 mi | |
| CMT Construction and Excavation | 4.5★ (2) | 18 mi |
| Cunningham Construction | 5.0★ (2) | 15 mi |
| Durham-Middlefield Septic Tank | 5.0★ (1) | 23 mi |
| Flush Warranty | 5.0★ (2) | 9 mi |
| Jason Walter Septic & Excavating | 5.0★ (1) | 8 mi |
| Nebelung Construction: Dumpsters, Excavation, & Property Services | 10 mi | |
| Ott John K | 4.5★ (2) | 22 mi |
| P&H Septic Service | 5.0★ (2) | 17 mi |
| Paul L Szewczyk Excavating Inc | 5.0★ (1) | 24 mi |
| Saltwater Septic Tank Pumping Service | 5.0★ (2) | 2 mi |
| SAVIOUR SEPTIC, LLC | 5.0★ (1) | 20 mi |
| Saviour's Sewer Drain & Septic | 5.0★ (1) | 23 mi |
| Shoreline Septic & Excavation | 5.0★ (1) | 14 mi |
| Testori Brothers Excavation | 5.0★ (1) | 10 mi |
| Webster Septic Tank Service | 5.0★ (1) | 20 mi |
| Wilson Septic Service LLC | 1.0★ (1) | 11 mi |
How we ranked Old Saybrook septic service companies
We scored 67 Old Saybrook 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 Old Saybrook 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 Old Saybrook: frequently asked questions
Who is the best septic service company in Old Saybrook?
By CR Score, the highest-ranked septic service company in Old Saybrook, CT is Anderson Bros Sanitation & Excavating Inc with a CR Score of 62/100. It has 4.9★ from 111 Google reviews. It is open 24/7. Quackenbush Cesspools Inc (#2) and Septic System Solutions Higganum- Vincent Madore (#3) follow. We ranked 67 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Old Saybrook?
ContractorsRanked ranks 67 septic service companies serving Old Saybrook, CT. 3 of them are based in Old Saybrook; 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 Old Saybrook are open 24/7?
19 ranked septic service companies in Old Saybrook post 24/7 hours. The highest-ranked are Anderson Bros Sanitation & Excavating Inc (#1), Quackenbush Cesspools Inc (#2) and Septic System Solutions Higganum- Vincent Madore (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Old Saybrook work on weekends?
35 of 67 ranked septic service companies post Saturday hours and 25 post Sunday hours. The highest-ranked open Saturdays are Anderson Bros Sanitation & Excavating Inc (#1), Quackenbush Cesspools Inc (#2) and Septic System Solutions Higganum- Vincent Madore (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Old Saybrook septic service companies have?
The median Google rating among 67 rated septic service companies in Old Saybrook is 4.8★, with a median of 17 reviews. Drainworks Plumbing & Septic LLC has the most, 1,362 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 Old Saybrook count in this ranking?
Yes, if they are within 25 mi of the Old Saybrook 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 Old Saybrook
- November 2026: CR Scores recalculated for 67 septic service companies serving Old Saybrook.
- November 2026: 1 duplicate listing merged.
More septic service companies and Old Saybrook pages
Septic service companies near Old Saybrook
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