61/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 907 Google reviews, the most in Plymouth.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Plymouth, CT (2026)
90 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Plymouth: Modern Home Inspections LLC, CR Score 61/100; 5.0★ from 907 Google reviews; open Saturdays until 8 PM.
- 3
Best for emergencies (open 24/7): B&B Septic LLC, posts 24/7 hours; ranked #3 of 90.
- 18
Most-reviewed: Mr. Rooter Plumbing of Southern Fairfield County, 722 Google reviews at 4.9★, the most of 90 ranked after Modern Home Inspections LLC; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
90 Plymouth septic service companies are ranked here by CR Score, from ten published factors. 28 are open 24/7, 55 open Saturdays and 38 open Sundays, based on posted hours. The median Google rating is 4.9★ across 90 rated businesses.
Top 10 septic service companies in Plymouth at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Modern Home Inspections LLC | 61 | 5.0★ (907) | Meriden, 19 mi away | Sat · Evenings | Overall |
| 2 | Modern Septic Co | 60 | 5.0★ (72) | West Torrington, 8 mi away | Sat · Sun | — |
| 3 | B&B Septic LLC | 59 | 4.8★ (26) | West Torrington, 8 mi away | 24/7 | Emergencies |
| 4 | American Rooter | 59 | 4.8★ (280) | Plymouth | 24/7 | — |
| 5 | Brown Septic Systems | 59 | 5.0★ (268) | Southbury, 18 mi away | Sat | — |
| 6 | Connecticut Septic LLC | 59 | 5.0★ (48) | Newington, 17 mi away | 24/7 | — |
| 7 | Wolcott Sanitation Services, LLC | 58 | 4.1★ (30) | Wolcott, 6 mi away | 24/7 | — |
| 8 | Master Rooter: Sewer and Drain Cleaning Service | 58 | 5.0★ (56) | Waterbury, 7 mi away | 24/7 | — |
| 9 | The Christopher Bryant Co. LLC | 58 | 4.9★ (59) | Hartford, 22 mi away | 24/7 | — |
| 10 | Drainworks Plumbing & Septic | 58 | 4.9★ (311) | Plymouth | — | — |
The 90 best septic service companies in Plymouth, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in West Torrington, 8 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Torrington, 8 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ 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 Plymouth
59/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 280 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Southbury, 18 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 268 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newington, 17 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ 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 Wolcott, 6 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.1★ 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 Waterbury, 7 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hartford, 22 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 59 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plymouth
58/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 311 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Torrington, 9 mi away
57/100CR ScoreRanked #11 because of its Google rating and review volume: 4.6★ from 144 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Milford, 13 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ 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 Wolcott, 9 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Easton, 14 mi away
56/100CR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 311 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Prospect, 12 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 3.9★ 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 Plymouth
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wallingford, 18 mi away
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 495 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Shelton, 24 mi away
56/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 722 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ansonia, 19 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ansonia, 22 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ 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 Hamden, 16 mi away
55/100CR ScoreRanked #21 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 Queens, 12 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 3.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Prospect, 14 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ 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 Bristol, 5 mi away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ 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 Woodbridge, 23 mi away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 140 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 90 ranked septic service companies here; the rest are on their profiles.
Also serving Plymouth
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 |
|---|---|---|
| ABC Sewer & Drain Cleaning Services | 5.0★ (1) | 20 mi |
| Amoroso Excavating & Septic Service, LLC | 5.0★ (1) | In Plymouth |
| Bristol Septic Tank & Sewer | 5.0★ (1) | 6 mi |
| C F Deming Construction LLC | 5.0★ (1) | 12 mi |
| Certified Sewer Service by Torrant | 5.0★ (2) | 21 mi |
| Delfino Septic Tank Services | 5.0★ (2) | 6 mi |
| Frank's Septic and Excavating | 5.0★ (1) | 18 mi |
| Freddy's Sewer & Drain Cleaning | 5.0★ (2) | 8 mi |
| Graham's Excavating LLC | 5.0★ (1) | 17 mi |
| H & M Septic Pumping Corporation | 5.0★ (1) | 15 mi |
| John H Bensavage LLC | 5.0★ (1) | In Plymouth |
| MBR2 Inc | 5.0★ (1) | 16 mi |
| Raymond Road Sewer & Drain | 4.0★ (1) | 17 mi |
| River Valley Construction Company, LLC | 5.0★ (1) | 10 mi |
| Shelton Septic & Sewer | 4.0★ (2) | 19 mi |
| Simsbury Septic | 5.0★ (1) | 20 mi |
| SOS Sewer & Drain Cleaning | 5.0★ (2) | 15 mi |
| Talarico Septic & Excavating LLC | 5.0★ (2) | 15 mi |
| Terrene Services | 5.0★ (1) | 13 mi |
| United Rentals - Reliable Onsite Services | 5.0★ (1) | 14 mi |
How we ranked Plymouth septic service companies
We scored 90 Plymouth 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 Plymouth 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 Plymouth: frequently asked questions
Who is the best septic service company in Plymouth?
By CR Score, the highest-ranked septic service company in Plymouth, CT is Modern Home Inspections LLC with a CR Score of 61/100. It has 5.0★ from 907 Google reviews. It is open Saturdays until 8 PM. Modern Septic Co (#2) and B&B Septic LLC (#3) follow. We ranked 90 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Plymouth?
ContractorsRanked ranks 90 septic service companies serving Plymouth, CT. 3 of them are based in Plymouth; 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 Plymouth are open 24/7?
28 ranked septic service companies in Plymouth post 24/7 hours. The highest-ranked are B&B Septic LLC (#3), American Rooter (#4) and Connecticut Septic LLC (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Plymouth work on weekends?
55 of 90 ranked septic service companies post Saturday hours and 38 post Sunday hours. The highest-ranked open Saturdays are Modern Home Inspections LLC (#1), Modern Septic Co (#2) and B&B Septic LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Plymouth septic service companies have?
The median Google rating among 90 rated septic service companies in Plymouth is 4.9★, with a median of 16 reviews. Modern Home Inspections LLC has the most, 907 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 Plymouth count in this ranking?
Yes, if they are within 25 mi of the Plymouth 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 Plymouth
- November 2026: CR Scores recalculated for 90 septic service companies serving Plymouth.
- November 2026: 2 duplicate listings merged.
More septic service companies and Plymouth pages
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