58/100CR Score
Ranked #1 because of its Google rating and review volume: 4.3★ from 437 Google reviews, the most in Cobourg.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Cobourg, ON (2026)
13 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Cobourg: Doyle Home Services, CR Score 58/100; 4.3★ from 437 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Larry's Septic Service, posts 24/7 hours; ranked #4 of 13.
- 3
Most-reviewed: Quinte Septic Tank. (Add Us On Facebook), 60 Google reviews at 4.6★, the most of 13 ranked after Doyle Home Services; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
13 Cobourg septic service companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 4 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.7★ across 13 rated businesses.
Top 10 septic service companies in Cobourg at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Doyle Home Services | 58 | 4.3★ (437) | Cobourg | 24/7 | Overall |
| 2 | Johnson Septic Service Ltd. | 53 | 4.7★ (26) | Prince Edward, 16 km away | — | — |
| 3 | Quinte Septic Tank. (Add Us On Facebook) | 52 | 4.6★ (60) | Quinte West, 40 km away | Sat | Most reviews |
| 4 | Larry's Septic Service | 52 | 4.0★ (23) | Quinte West, 39 km away | 24/7 | Emergencies |
| 5 | Ontario Septic Inc. | 52 | 2.3★ (3) | Port Hope, 16 km away | 24/7 | — |
| 6 | Courtice Septic | 52 | 4.9★ (29) | Port Hope, 25 km away | — | — |
| 7 | Clancy’s Septic Services Ltd | 51 | 5.0★ (23) | Peterborough, 39 km away | — | — |
| 8 | Trent Hills Septic Services | 51 | 5.0★ (37) | Prince Edward, 35 km away | — | — |
| 9 | CHADWICK'S Septic and Bulk Water | 51 | 5.0★ (3) | Cobourg | — | — |
| 10 | Advanced Septic Solutions Inc | 51 | 4.7★ (22) | Toronto, 25 km away | — | — |
The 13 best septic service companies in Cobourg, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Prince Edward, 16 km away
53/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ 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 Quinte West, 40 km away
52/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.6★ from 60 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Quinte West, 39 km away
52/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.0★ 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 Port Hope, 16 km away
52/100CR ScoreRanked #5 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Hope, 25 km away
52/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough, 39 km away
51/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Prince Edward, 35 km away
51/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cobourg
51/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 25 km away
51/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 22 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Hope, 9 km away
44/100CR ScoreRanked #11 because of its Google rating and trade focus: 3.9★ from 9 Google reviews, listed on Google as “Excavating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough, 38 km away
40/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Excavating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Peterborough, 38 km away
40/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Cobourg
5 more septic service companies within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| 6 Way Contracting Svc | In Cobourg | |
| Northumberld Septic Repairs | In Cobourg | |
| Shaw-Davis Septic & Bulkwater | 13 km | |
| SwiftDrain Plumbers Cobourg | In Cobourg | |
| Young Co Septic Systems | 5.0★ (1) | 13 km |
How we ranked Cobourg septic service companies
We scored 13 Cobourg 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 Cobourg 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 Cobourg: frequently asked questions
Who is the best septic service company in Cobourg?
By CR Score, the highest-ranked septic service company in Cobourg, ON is Doyle Home Services with a CR Score of 58/100. It has 4.3★ from 437 Google reviews. It is open 24/7. Johnson Septic Service Ltd. (#2) and Quinte Septic Tank. (Add Us On Facebook) (#3) follow. We ranked 13 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Cobourg?
ContractorsRanked ranks 13 septic service companies serving Cobourg, ON. 2 of them are based in Cobourg; the rest serve it from nearby towns. Another 5 within 40 km are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Cobourg are open 24/7?
3 ranked septic service companies in Cobourg post 24/7 hours. The highest-ranked are Doyle Home Services (#1), Larry's Septic Service (#4) and Ontario Septic Inc. (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Cobourg work on weekends?
4 of 13 ranked septic service companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Doyle Home Services (#1), Quinte Septic Tank. (Add Us On Facebook) (#3) and Larry's Septic Service (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Cobourg septic service companies have?
The median Google rating among 13 rated septic service companies in Cobourg is 4.7★, with a median of 23 reviews. Doyle Home Services has the most, 437 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 Cobourg count in this ranking?
Yes, if they are within 40 km of the Cobourg city centre, 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 Cobourg
- November 2026: CR Scores recalculated for 13 septic service companies serving Cobourg.
More septic service companies and Cobourg pages
Septic service companies near Cobourg
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