62/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 907 Google reviews, the most in New Haven.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in New Haven, CT (2026)
104 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in New Haven: Modern Home Inspections LLC, CR Score 62/100; 5.0★ from 907 Google reviews; open Saturdays until 8 PM.
- 2
Best for emergencies (open 24/7): Anderson Bros Sanitation & Excavating Inc, posts 24/7 hours; ranked #2 of 104.
- 3
Most-reviewed: Mr. Rooter Plumbing of South Central Connecticut, 742 Google reviews at 4.9★, the most of 104 ranked after Modern Home Inspections LLC; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
104 New Haven septic service companies are ranked here by CR Score, from ten published factors. 29 are open 24/7, 55 open Saturdays and 39 open Sundays, based on posted hours. The median Google rating is 4.9★ across 104 rated businesses.
Top 10 septic service companies in New Haven 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 | Anderson Bros Sanitation & Excavating Inc | 59 | 4.9★ (111) | Branford, 20 mi away | 24/7 | Emergencies |
| 3 | Mr. Rooter Plumbing of South Central Connecticut | 59 | 4.9★ (742) | North Branford, 9 mi away | 24/7 | Most reviews |
| 4 | Brown Septic Systems | 59 | 5.0★ (268) | Southbury, 17 mi away | Sat | — |
| 5 | Koseski & Son Septic Service LLC | 59 | 5.0★ (140) | Woodbridge, 4 mi away | — | — |
| 6 | Mr. Rooter Plumbing of Southern Fairfield County | 59 | 4.9★ (722) | Shelton, 11 mi away | 24/7 | — |
| 7 | Aft-End Septic LLC | 59 | 5.0★ (17) | Ansonia, 9 mi away | 24/7 | — |
| 8 | Unlimited Excavation and Construction Orange | 58 | 4.7★ (14) | Orange, 7 mi away | 24/7 | — |
| 9 | Tom Hill Septic Services | 58 | 4.9★ (18) | Orange, 1 mi away | — | — |
| 10 | Laco Site Services | 58 | 5.0★ (24) | Ansonia, 8 mi away | Sat · Sun · Evenings | — |
The 104 best septic service companies in New Haven, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Branford, 20 mi away
59/100CR ScoreRanked #2 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.
Based in North Branford, 9 mi away
59/100CR ScoreRanked #3 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 Southbury, 17 mi away
59/100CR ScoreRanked #4 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 Woodbridge, 4 mi away
59/100CR ScoreRanked #5 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 Shelton, 11 mi away
59/100CR ScoreRanked #6 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, 9 mi away
59/100CR ScoreRanked #7 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 Orange, 7 mi away
58/100CR ScoreRanked #8 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 Orange, 1 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 18 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, 8 mi away
58/100CR ScoreRanked #10 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 Stratford, 14 mi away
58/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 171 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bridgeport, 16 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ 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 Meriden, 23 mi away
58/100CR ScoreRanked #13 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 Coram, 17 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ 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 Wallingford, 13 mi away
57/100CR ScoreRanked #15 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 Bridgeport, 20 mi away
57/100CR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 167 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Easton, 13 mi away
57/100CR ScoreRanked #17 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 Hamden, 10 mi away
57/100CR ScoreRanked #18 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 New Milford, 17 mi away
56/100CR ScoreRanked #19 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 Prospect, 14 mi away
56/100CR ScoreRanked #20 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 Fairfield, 20 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ansonia, 8 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.6★ from 35 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Haven
55/100CR ScoreRanked #23 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 New Haven
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.0★ from 92 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Shelton, 10 mi away
55/100CR ScoreRanked #25 because of its Google rating and review volume: 4.7★ from 131 Google reviews.
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 104 ranked septic service companies here; the rest are on their profiles.
Also serving New Haven
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 |
|---|---|---|
| B Medina Sewer & Drain Cleaning | In New Haven | |
| Baldino & Son Excavating-Sewer | 5.0★ (1) | In New Haven |
| Code Septic Design | 5.0★ (1) | In New Haven |
| Delfino Septic Tank Services | 5.0★ (2) | 25 mi |
| Duane Stevens Excavating & Trucking | In New Haven | |
| Enviro Sewer & Drain | 5.0★ (1) | 9 mi |
| Flush Warranty | 5.0★ (2) | 20 mi |
| Frank's Septic and Excavating | 5.0★ (1) | 14 mi |
| Freddy's Sewer & Drain Cleaning | 5.0★ (2) | 19 mi |
| GL Scully Company | 5.0★ (1) | 14 mi |
| GP TRUCKING & EXCAVATING, LLC | In New Haven | |
| Luis Septic & Drain Services LLC | 5.0★ (1) | 8 mi |
| Oly Mattera Construction | 5.0★ (2) | 23 mi |
| P & D Septic Services | 5.0★ (1) | 13 mi |
| Pro-Tech Rooter, Sewer Service, Drain Cleaning | 5.0★ (1) | 3 mi |
| Sanitrol Septic Sewer & Drain | In New Haven | |
| Shelton Septic & Sewer | 4.0★ (2) | 19 mi |
| Skyline Septic | 5.0★ (2) | 23 mi |
| SOS Sewer & Drain Cleaning | 5.0★ (2) | 16 mi |
| Talarico Septic & Excavating LLC | 5.0★ (2) | 19 mi |
How we ranked New Haven septic service companies
We scored 104 New Haven 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 New Haven 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 New Haven: frequently asked questions
Who is the best septic service company in New Haven?
By CR Score, the highest-ranked septic service company in New Haven, 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. Anderson Bros Sanitation & Excavating Inc (#2) and Mr. Rooter Plumbing of South Central Connecticut (#3) follow. We ranked 104 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in New Haven?
ContractorsRanked ranks 104 septic service companies serving New Haven, CT. 2 of them are based in New Haven; 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 New Haven are open 24/7?
29 ranked septic service companies in New Haven post 24/7 hours. The highest-ranked are Anderson Bros Sanitation & Excavating Inc (#2), Mr. Rooter Plumbing of South Central Connecticut (#3) and Mr. Rooter Plumbing of Southern Fairfield County (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in New Haven work on weekends?
55 of 104 ranked septic service companies post Saturday hours and 39 post Sunday hours. The highest-ranked open Saturdays are Modern Home Inspections LLC (#1), Anderson Bros Sanitation & Excavating Inc (#2) and Mr. Rooter Plumbing of South Central Connecticut (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do New Haven septic service companies have?
The median Google rating among 104 rated septic service companies in New Haven is 4.9★, with a median of 15 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 New Haven count in this ranking?
Yes, if they are within 25 mi of the New Haven 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 New Haven
- November 2026: CR Scores recalculated for 104 septic service companies serving New Haven.
- November 2026: 2 duplicate listings merged.
More septic service companies and New Haven pages
Septic service companies near New Haven
- Septic service companies in West Haven, CT110 ranked
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- Septic service companies in Shelton, CT120 ranked
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