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 Guilford, CT (2026)
87 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Guilford: Anderson Bros Sanitation & Excavating Inc, CR Score 62/100; 4.9★ from 111 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Mr. Rooter Plumbing of South Central Connecticut, posts 24/7 hours; ranked #3 of 87.
- 2
Most-reviewed: Modern Home Inspections LLC, 907 Google reviews at 5.0★, the most of 87 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
87 Guilford septic service companies are ranked here by CR Score, from ten published factors. 26 are open 24/7, 47 open Saturdays and 34 open Sundays, based on posted hours. The median Google rating is 4.8★ across 87 rated businesses.
Top 10 septic service companies in Guilford 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, 7 mi away | 24/7 | Overall |
| 2 | Modern Home Inspections LLC | 62 | 5.0★ (907) | Meriden, 15 mi away | Sat · Evenings | Most reviews |
| 3 | Mr. Rooter Plumbing of South Central Connecticut | 60 | 4.9★ (742) | North Branford, 5 mi away | 24/7 | Emergencies |
| 4 | Septic System Solutions Higganum- Vincent Madore | 60 | 4.9★ (66) | Meriden, 13 mi away | 24/7 | — |
| 5 | Monoflo Septic Tank Co | 59 | 4.4★ (10) | Guilford | 24/7 | — |
| 6 | John J Doerrer Inc | 59 | 4.8★ (17) | Guilford | Sat · Sun | — |
| 7 | Perkulator Cesspool | 57 | 4.8★ (23) | Coram, 14 mi away | 24/7 | — |
| 8 | Finkeldey Septic Service LLC | 57 | 4.6★ (19) | Guilford | Sat | — |
| 9 | Engineered Septic & Sewer, LLC | 57 | 4.8★ (16) | Guilford | Sat | — |
| 10 | bluefrog Plumbing + Drain of Central Connecticut | 56 | 4.8★ (495) | Wallingford, 15 mi away | 24/7 | — |
The 87 best septic service companies in Guilford, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Meriden, 15 mi away
62/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 907 Google reviews, the most in Guilford.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Branford, 5 mi away
60/100CR 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 Meriden, 13 mi away
60/100CR ScoreRanked #4 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 Guilford
59/100CR ScoreRanked #5 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
59/100CR ScoreRanked #6 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 Coram, 14 mi away
57/100CR ScoreRanked #7 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 Guilford
57/100CR ScoreRanked #8 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
57/100CR ScoreRanked #9 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 Wallingford, 15 mi away
56/100CR ScoreRanked #10 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 Woodbridge, 17 mi away
56/100CR ScoreRanked #11 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, 24 mi away
56/100CR ScoreRanked #12 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, 22 mi away
55/100CR ScoreRanked #13 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 Riverhead, 25 mi away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ansonia, 18 mi away
55/100CR ScoreRanked #15 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 Orange, 19 mi away
55/100CR ScoreRanked #16 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 Stratford, 25 mi away
55/100CR ScoreRanked #17 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 Easton, 19 mi away
55/100CR ScoreRanked #18 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.
#19 Beers Inc
Based in Waterford, 22 mi away
55/100CR ScoreRanked #19 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 Orange, 13 mi away
55/100CR ScoreRanked #20 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 Hartford, 15 mi away
54/100CR ScoreRanked #21 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 Hamden, 20 mi away
54/100CR ScoreRanked #22 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, 6 mi away
54/100CR 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 Prospect, 22 mi away
54/100CR ScoreRanked #24 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 West Torrington, 15 mi away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability 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 87 ranked septic service companies here; the rest are on their profiles.
Also serving Guilford
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 |
|---|---|---|
| Anytime Sewer & Drain Services | 1.0★ (1) | 19 mi |
| Baldino & Son Excavating-Sewer | 5.0★ (1) | 15 mi |
| Bill Walter & Sons Septic Services | 5.0★ (1) | 8 mi |
| Code Septic Design | 5.0★ (1) | 23 mi |
| Cunningham Construction | 5.0★ (2) | 20 mi |
| Durham-Middlefield Septic Tank | 5.0★ (1) | 16 mi |
| Enviro Sewer & Drain | 5.0★ (1) | 22 mi |
| Flush Warranty | 5.0★ (2) | In Guilford |
| Jason Walter Septic & Excavating | 5.0★ (1) | 8 mi |
| Luis Septic & Drain Services LLC | 5.0★ (1) | 21 mi |
| Paul L Szewczyk Excavating Inc | 5.0★ (1) | 20 mi |
| Pro-Tech Rooter, Sewer Service, Drain Cleaning | 5.0★ (1) | 10 mi |
| River Valley Construction Company, LLC | 5.0★ (1) | 24 mi |
| Saltwater Septic Tank Pumping Service | 5.0★ (2) | 14 mi |
| Sanitrol Septic Drain & Grease | In Guilford | |
| Seabreeze Septic Services | In Guilford | |
| Shoreline Septic & Excavation | 5.0★ (1) | 7 mi |
| Testori Brothers Excavation | 5.0★ (1) | 6 mi |
| Webster Septic Tank Service | 5.0★ (1) | 21 mi |
| Wilson Septic Service LLC | 1.0★ (1) | 5 mi |
How we ranked Guilford septic service companies
We scored 87 Guilford 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 Guilford 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 Guilford: frequently asked questions
Who is the best septic service company in Guilford?
By CR Score, the highest-ranked septic service company in Guilford, 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. Modern Home Inspections LLC (#2) and Mr. Rooter Plumbing of South Central Connecticut (#3) follow. We ranked 87 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Guilford?
ContractorsRanked ranks 87 septic service companies serving Guilford, CT. 5 of them are based in Guilford; 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 Guilford are open 24/7?
26 ranked septic service companies in Guilford post 24/7 hours. The highest-ranked are Anderson Bros Sanitation & Excavating Inc (#1), Mr. Rooter Plumbing of South Central Connecticut (#3) and Septic System Solutions Higganum- Vincent Madore (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Guilford work on weekends?
47 of 87 ranked septic service companies post Saturday hours and 34 post Sunday hours. The highest-ranked open Saturdays are Anderson Bros Sanitation & Excavating Inc (#1), Modern Home Inspections LLC (#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 Guilford septic service companies have?
The median Google rating among 87 rated septic service companies in Guilford is 4.8★, with a median of 17 reviews. Modern Home Inspections LLC has the most, 907 reviews, and ranks #2. 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 Guilford count in this ranking?
Yes, if they are within 25 mi of the Guilford 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 Guilford
- November 2026: CR Scores recalculated for 87 septic service companies serving Guilford.
- November 2026: 1 duplicate listing merged.
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