62/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 907 Google reviews, the most in Waterbury.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Waterbury, CT (2026)
124 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Waterbury: Modern Home Inspections LLC, CR Score 62/100; 5.0★ from 907 Google reviews; open Saturdays until 8 PM.
- 3
Best for emergencies (open 24/7): Master Rooter: Sewer and Drain Cleaning Service, posts 24/7 hours; ranked #3 of 124.
- 24
Most-reviewed: Mr. Rooter Plumbing of South Central Connecticut, 742 Google reviews at 4.9★, the most of 124 ranked after Modern Home Inspections LLC; ranked #24.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
124 Waterbury septic service companies are ranked here by CR Score, from ten published factors. 34 are open 24/7, 71 open Saturdays and 47 open Sundays, based on posted hours. The median Google rating is 4.9★ across 124 rated businesses.
Top 10 septic service companies in Waterbury at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Modern Home Inspections LLC | 62 | 5.0★ (907) | Meriden, 16 mi away | Sat · Evenings | Overall |
| 2 | Brown Septic Systems | 60 | 5.0★ (268) | Southbury, 12 mi away | Sat | — |
| 3 | Master Rooter: Sewer and Drain Cleaning Service | 59 | 5.0★ (56) | Waterbury | 24/7 | Emergencies |
| 4 | Wolcott Sanitation Services, LLC | 59 | 4.1★ (30) | Wolcott, 4 mi away | 24/7 | — |
| 5 | Al's Septic Service, LLC | 59 | 4.7★ (14) | New Milford, 6 mi away | 24/7 | — |
| 6 | Connecticut Septic LLC | 58 | 5.0★ (48) | Newington, 18 mi away | 24/7 | — |
| 7 | Modern Septic Co | 58 | 5.0★ (72) | West Torrington, 15 mi away | Sat · Sun | — |
| 8 | Prospect Sanitation Services Inc | 58 | 3.9★ (23) | Prospect, 5 mi away | 24/7 | — |
| 9 | American Rooter | 58 | 4.8★ (280) | Plymouth, 5 mi away | 24/7 | — |
| 10 | Wind River Environmental of Monroe, CT | 58 | 4.9★ (311) | Easton, 8 mi away | 24/7 | — |
The 124 best septic service companies in Waterbury, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Southbury, 12 mi away
60/100CR ScoreRanked #2 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 Waterbury
59/100CR ScoreRanked #3 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 Wolcott, 4 mi away
59/100CR ScoreRanked #4 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 New Milford, 6 mi away
59/100CR ScoreRanked #5 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 Newington, 18 mi away
58/100CR 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 West Torrington, 15 mi away
58/100CR ScoreRanked #7 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 Prospect, 5 mi away
58/100CR ScoreRanked #8 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, 5 mi away
58/100CR ScoreRanked #9 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 Easton, 8 mi away
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 Wolcott, 4 mi away
58/100CR ScoreRanked #11 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.
#12 B&B Septic LLC
Based in West Torrington, 15 mi away
58/100CR ScoreRanked #12 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 Shelton, 16 mi away
57/100CR ScoreRanked #13 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 Waterbury
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterbury
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ 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 Ansonia, 15 mi away
57/100CR ScoreRanked #16 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 Ansonia, 11 mi away
57/100CR ScoreRanked #17 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 Wallingford, 13 mi away
57/100CR ScoreRanked #18 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 Hamden, 9 mi away
57/100CR ScoreRanked #19 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, 4 mi away
57/100CR ScoreRanked #20 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, 6 mi away
56/100CR ScoreRanked #21 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 Danbury, 22 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 120 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodbridge, 15 mi away
56/100CR ScoreRanked #23 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.
Based in North Branford, 22 mi away
56/100CR ScoreRanked #24 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 Jefferson Valley-Yorktown, 24 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 28 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 124 ranked septic service companies here; the rest are on their profiles.
Also serving Waterbury
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 | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| American Rooter | In Waterbury | |
| Freddy's Sewer & Drain Cleaning | 5.0★ (2) | In Waterbury |
| Guardian Drain & Sewer Cleaning | In Waterbury |
How we ranked Waterbury septic service companies
We scored 124 Waterbury 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 Waterbury 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 Waterbury: frequently asked questions
Who is the best septic service company in Waterbury?
By CR Score, the highest-ranked septic service company in Waterbury, CT is Modern Home Inspections LLC with a CR Score of 62/100. It has 5.0★ from 907 Google reviews. It is open Saturdays until 8 PM. Brown Septic Systems (#2) and Master Rooter: Sewer and Drain Cleaning Service (#3) follow. We ranked 124 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Waterbury?
ContractorsRanked ranks 124 septic service companies serving Waterbury, CT. 7 of them are based in Waterbury; 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 Waterbury are open 24/7?
34 ranked septic service companies in Waterbury post 24/7 hours. The highest-ranked are Master Rooter: Sewer and Drain Cleaning Service (#3), Wolcott Sanitation Services, LLC (#4) and Al's Septic Service, LLC (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Waterbury work on weekends?
71 of 124 ranked septic service companies post Saturday hours and 47 post Sunday hours. The highest-ranked open Saturdays are Modern Home Inspections LLC (#1), Brown Septic Systems (#2) and Master Rooter: Sewer and Drain Cleaning Service (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Waterbury septic service companies have?
The median Google rating among 124 rated septic service companies in Waterbury is 4.9★, with a median of 14 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 Waterbury count in this ranking?
Yes, if they are within 25 mi of the Waterbury 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 Waterbury
- November 2026: CR Scores recalculated for 124 septic service companies serving Waterbury.
- November 2026: 2 duplicate listings merged.
More septic service companies and Waterbury pages
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