60/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 32 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 Windham, CT (2026)
65 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Windham: 365 Septic, LLC, CR Score 60/100; 5.0★ from 32 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): All Things Sewer and Drain Care (Drain Clog Connecticut)., posts 24/7 hours; ranked #2 of 65.
- 11
Most-reviewed: Drainworks Plumbing & Septic LLC, 1,362 Google reviews at 4.8★, the most of 65 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
65 Windham septic service companies are ranked here by CR Score, from ten published factors. 15 are open 24/7, 30 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 4.9★ across 65 rated businesses.
Top 10 septic service companies in Windham at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | 365 Septic, LLC | 60 | 5.0★ (32) | Windham | Sat · Sun | Overall |
| 2 | All Things Sewer and Drain Care (Drain Clog Connecticut). | 58 | 4.9★ (220) | East Haddam, 12 mi away | 24/7 | Emergencies |
| 3 | Parent Sanitation, a Wind River Company | 58 | 4.8★ (85) | Putnam, 21 mi away | 24/7 | — |
| 4 | HAWKINS MAINTENANCE LLC. | 57 | 5.0★ (40) | Plainfield, 19 mi away | 24/7 | — |
| 5 | Skips Wastewater Services | 57 | 4.9★ (804) | Ellington, 20 mi away | — | — |
| 6 | New London County Septic & Excavation | 57 | 4.8★ (50) | Ledyard, 21 mi away | 24/7 | — |
| 7 | Flushaway Septic Tank Cleaning INC | 56 | 4.8★ (39) | Norwich, 15 mi away | Sat · Sun | — |
| 8 | Arts Septic Tank Service LLC | 56 | 5.0★ (54) | Mansfield City, 5 mi away | — | — |
| 9 | Septic Inspections By Earthworm Septic Services | 56 | 4.8★ (45) | Montville Center, 16 mi away | 24/7 | — |
| 10 | Septicology LLC | 56 | 4.9★ (891) | Hartford, 24 mi away | — | — |
The 65 best septic service companies in Windham, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in East Haddam, 12 mi away
58/100CR ScoreRanked #2 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 Putnam, 21 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 85 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plainfield, 19 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ellington, 20 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 804 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ledyard, 21 mi away
57/100CR ScoreRanked #6 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.
Based in Norwich, 15 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mansfield City, 5 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 54 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, 16 mi away
56/100CR ScoreRanked #9 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.
#10 Septicology LLC
Based in Hartford, 24 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 891 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, 13 mi away
56/100CR ScoreRanked #11 because of its Google rating and review volume: 4.8★ from 1,362 Google reviews, the most in Windham.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ellington, 22 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 367 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#13 Saviour Septic
Based in Norwich, 11 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 123 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, 9 mi away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.7★ from 46 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mansfield City, 10 mi away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Tolland, 15 mi away
55/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 69 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Killingly Center, 14 mi away
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Storrs, 5 mi away
55/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ 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 New London, 19 mi away
54/100CR ScoreRanked #19 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 Manchester, 20 mi away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ledyard, 16 mi away
54/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Windham
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.3★ from 13 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Glastonbury, 8 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ 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 Manchester, 12 mi away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Hartford, 20 mi away
53/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 5 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 65 ranked septic service companies here; the rest are on their profiles.
Also serving Windham
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 | 4 mi | |
| American Rooter | 10 mi | |
| Audet Septic Services | 5.0★ (1) | 22 mi |
| CMT Construction and Excavation | 4.5★ (2) | 16 mi |
| CT Septic & Land Repair | 5.0★ (1) | 25 mi |
| Cunningham Construction | 5.0★ (2) | 19 mi |
| D Kyle Stearns Contracting Inc | 8 mi | |
| Eastern Environmental Septic | 4.0★ (1) | 9 mi |
| Gale Construction Inc | 2.0★ (1) | 23 mi |
| Hilltop Contractors, LLC | 5.0★ (2) | 15 mi |
| Jonathan P. Arpin, LLC | 5.0★ (1) | 6 mi |
| P&H Septic Service | 5.0★ (2) | 17 mi |
| SAVIOUR SEPTIC, LLC | 5.0★ (1) | 13 mi |
| Saviour's Sewer Drain & Septic | 5.0★ (1) | 24 mi |
| Septi-Cate Services | 1.0★ (1) | 24 mi |
| Septic Snooper | 1.0★ (1) | 23 mi |
| Slims & Berthiaume Sewer Service Inc | 5.0★ (2) | 17 mi |
| Stula Enterprises LLC | 5.0★ (1) | 19 mi |
| United Site Services | 1.0★ (2) | 6 mi |
| Webster Septic Tank Service | 5.0★ (1) | 21 mi |
How we ranked Windham septic service companies
We scored 65 Windham 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 Windham 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 Windham: frequently asked questions
Who is the best septic service company in Windham?
By CR Score, the highest-ranked septic service company in Windham, CT is 365 Septic, LLC with a CR Score of 60/100. It has 5.0★ from 32 Google reviews. It is open 7 days a week. All Things Sewer and Drain Care (Drain Clog Connecticut). (#2) and Parent Sanitation, a Wind River Company (#3) follow. We ranked 65 septic service companies on ten factors, last updated November 2, 2026.
How many septic service companies are there in Windham?
ContractorsRanked ranks 65 septic service companies serving Windham, CT. 4 of them are based in Windham; 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 Windham are open 24/7?
15 ranked septic service companies in Windham post 24/7 hours. The highest-ranked are All Things Sewer and Drain Care (Drain Clog Connecticut). (#2), Parent Sanitation, a Wind River Company (#3) and HAWKINS MAINTENANCE LLC. (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Windham work on weekends?
30 of 65 ranked septic service companies post Saturday hours and 22 post Sunday hours. The highest-ranked open Saturdays are 365 Septic, LLC (#1), All Things Sewer and Drain Care (Drain Clog Connecticut). (#2) and Parent Sanitation, a Wind River Company (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Windham septic service companies have?
The median Google rating among 65 rated septic service companies in Windham is 4.9★, with a median of 23 reviews. Drainworks Plumbing & Septic LLC has the most, 1,362 reviews, and ranks #11. 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 Windham count in this ranking?
Yes, if they are within 25 mi of the Windham 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 Windham
- November 2026: CR Scores recalculated for 65 septic service companies serving Windham.
More septic service companies and Windham pages
Septic service companies near Windham
- Septic service companies in Willimantic, CT70 ranked
- Septic service companies in Mansfield City, CT70 ranked
- Septic service companies in Storrs, CT73 ranked
- Septic service companies in Plainfield, CT80 ranked
- Septic service companies in Norwich, CT70 ranked
- Septic service companies in Montville Center, CT68 ranked
- Septic service companies in Tolland, CT77 ranked
- Septic service companies in Killingly Center, CT75 ranked
- Septic service companies in Ledyard, CT60 ranked
- Septic service companies in Manchester, CT88 ranked
Other trades in Windham
- Roofers in Windham796 ranked
- Plumbers in Windham184 ranked
- Electricians in Windham150 ranked
- HVAC contractors in Windham227 ranked
- General contractors in Windham227 ranked
- Painters in Windham47 ranked
- Landscapers in Windham88 ranked
- Handymen in Windham24 ranked
- Kitchen remodelers in Windham118 ranked
- Bathroom remodelers in Windham113 ranked
- Flooring contractors in Windham99 ranked
- Tile installers in Windham8 ranked
- Concrete contractors in Windham62 ranked
- Fence contractors in Windham46 ranked
- Deck builders in Windham75 ranked
- Siding contractors in Windham387 ranked
- Window installers in Windham347 ranked
- Gutter installers in Windham95 ranked
- Insulation contractors in Windham25 ranked
- Solar installers in Windham127 ranked
- Garage door repair companies in Windham27 ranked
- Foundation repair companies in Windham125 ranked
- Tree services in Windham177 ranked
- Masonry contractors in Windham96 ranked
- Water damage restoration companies in Windham335 ranked
- Home builders in Windham287 ranked
- Demolition contractors in Windham26 ranked
- Window cleaners in Windham6 ranked
- Pressure washing companies in Windham19 ranked
- Pest control companies in Windham14 ranked
- Paving contractors in Windham84 ranked
- Auto glass repair shops in Windham29 ranked
- Excavating contractors in Windham87 ranked
- Pool builders in Windham145 ranked
- All contractors in Windham