61/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 48 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 Oakville, ON (2026)
53 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Oakville: CANADIAN PLUMBING SOLUTIONS, CR Score 61/100; 4.8★ from 48 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Hy-Pro Plumbing & Drain Cleaning of Georgetown, posts 24/7 hours; ranked #2 of 53.
- 3
Most-reviewed: Rooter-Man Drain & Sewer Repair Services Toronto, 570 Google reviews at 4.8★, the most of 53 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
53 Oakville septic service companies are ranked here by CR Score, from ten published factors. 33 are open 24/7, 40 open Saturdays and 35 open Sundays, based on posted hours. The median Google rating is 4.9★ across 53 rated businesses.
Top 10 septic service companies in Oakville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CANADIAN PLUMBING SOLUTIONS | 61 | 4.8★ (48) | Mississauga, 14 km away | 24/7 | Overall |
| 2 | Hy-Pro Plumbing & Drain Cleaning of Georgetown | 61 | 4.8★ (189) | Brampton, 31 km away | 24/7 | Emergencies |
| 3 | Rooter-Man Drain & Sewer Repair Services Toronto | 60 | 4.8★ (570) | Etobicoke, 25 km away | 24/7 | Most reviews |
| 4 | OneStop Shop Inspections | 59 | 4.9★ (114) | Hamilton, 36 km away | 24/7 | — |
| 5 | 17 Plumbing & Construction Design Ltd | 59 | 5.0★ (115) | Oakville | 24/7 | — |
| 6 | CD Flood & Sewer Water Damage Cleanup | 59 | 5.0★ (388) | Toronto, 34 km away | 24/7 | — |
| 7 | Get Pumped Septic Services Inc. | 59 | 4.7★ (35) | Toronto, 21 km away | 24/7 | — |
| 8 | Crystal Drain & Plumbing, Drain Backup, Drain Cleaning, Sewer Drain Repair | 59 | 4.9★ (165) | Mississauga, 21 km away | 24/7 | — |
| 9 | Rooter-Man Plumbing & Waterproofing Oakville | 59 | 4.7★ (178) | Oakville | 24/7 | — |
| 10 | Pryde Drain & Plumbing 🪠 Drain Backup, Drain Cleaning, Sewer Drain Repair | 58 | 5.0★ (76) | Mississauga, 17 km away | 24/7 | — |
The 53 best septic service companies in Oakville, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Brampton, 31 km away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 189 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 25 km away
60/100CR ScoreRanked #3 because of its Google rating and review volume: 4.8★ from 570 Google reviews, the most in Oakville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamilton, 36 km away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 114 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakville
59/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 115 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 34 km away
59/100CR ScoreRanked #6 because of its Google rating and review volume: 5.0★ from 388 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 21 km away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ 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 Mississauga, 21 km away
59/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 165 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oakville
59/100CR ScoreRanked #9 because of its Google rating and review volume: 4.7★ from 178 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 17 km away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 11 km away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamilton, 21 km away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ 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 Burlington, 5 km away
56/100CR ScoreRanked #13 because of its Google rating and review volume: 4.7★ from 79 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Liquid Gold
Based in Hamilton, 25 km away
56/100CR ScoreRanked #14 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 Brampton, 31 km away
56/100CR ScoreRanked #15 because of its Google rating and review volume: 4.8★ from 539 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 23 km away
56/100CR ScoreRanked #16 because of its Google rating and review volume: 4.8★ from 274 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milton, 23 km away
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 225 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamilton, 27 km away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Utility contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamilton, 24 km away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Drainage service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ancaster, 26 km away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 50 Google reviews, listed on Google as “Building inspector”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 10 km away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.6★ from 76 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 24 km away
55/100CR ScoreRanked #22 because of its Google rating and review volume: 4.8★ from 155 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#23 ExpressDrain
Based in Hamilton, 27 km away
55/100CR ScoreRanked #23 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.
Based in Toronto, 20 km away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hamilton, 14 km away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.4★ from 13 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 53 ranked septic service companies here; the rest are on their profiles.
Also serving Oakville
20 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 |
|---|---|---|
| A & A Skok Excavating | 5.0★ (2) | 32 km |
| Advanced Wastewater and Excavating Solutions | 5.0★ (1) | 26 km |
| Amcon Construction Ltd | 27 km | |
| Canvac Trucks - Canadian Vacuum Trucks & Equipment | 24 km | |
| Cation Excavating Limited | 5.0★ (2) | 22 km |
| DTEC Mechanical Waterproofing Expert | 5.0★ (1) | 38 km |
| Dynamic Plastic Solutions Inc. | 5.0★ (2) | 20 km |
| Everest Drain & Plumbing: Hamilton's Local Plumber | 29 km | |
| Mahoney Excavating and Grading | 5.0★ (1) | 39 km |
| Max Grease Trap Cleaning Mississauga | 5.0★ (1) | 17 km |
| North York sewer & drain services | 5.0★ (1) | 39 km |
| PipePulse Plumbers Milton | 17 km | |
| Plumber To Your Door of Oakville | 4.9★ (285) | In Oakville |
| Pro Grease Trap Cleaning Toronto | 5.0★ (1) | 33 km |
| Rankin's Septic Tank Pumping | 5.0★ (2) | 20 km |
| RocketFlow Plumbers Halton Hills | 28 km | |
| Sagar Benmar | 28 km | |
| Septic System Cost | 14 km | |
| Sewer Squad Plumbing | 5.0★ (2) | 25 km |
| vics's septic milton | 21 km |
How we ranked Oakville septic service companies
We scored 53 Oakville 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 Oakville 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 Oakville: frequently asked questions
Who is the best septic service company in Oakville?
By CR Score, the highest-ranked septic service company in Oakville, ON is CANADIAN PLUMBING SOLUTIONS with a CR Score of 61/100. It has 4.8★ from 48 Google reviews. It is open 24/7. Hy-Pro Plumbing & Drain Cleaning of Georgetown (#2) and Rooter-Man Drain & Sewer Repair Services Toronto (#3) follow. We ranked 53 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Oakville?
ContractorsRanked ranks 53 septic service companies serving Oakville, ON. 3 of them are based in Oakville; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Oakville are open 24/7?
33 ranked septic service companies in Oakville post 24/7 hours. The highest-ranked are CANADIAN PLUMBING SOLUTIONS (#1), Hy-Pro Plumbing & Drain Cleaning of Georgetown (#2) and Rooter-Man Drain & Sewer Repair Services Toronto (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Oakville work on weekends?
40 of 53 ranked septic service companies post Saturday hours and 35 post Sunday hours. The highest-ranked open Saturdays are CANADIAN PLUMBING SOLUTIONS (#1), Hy-Pro Plumbing & Drain Cleaning of Georgetown (#2) and Rooter-Man Drain & Sewer Repair Services Toronto (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Oakville septic service companies have?
The median Google rating among 53 rated septic service companies in Oakville is 4.9★, with a median of 35 reviews. Rooter-Man Drain & Sewer Repair Services Toronto has the most, 570 reviews, and ranks #3. 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 Oakville count in this ranking?
Yes, if they are within 40 km of the Oakville 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 Oakville
- November 2026: CR Scores recalculated for 53 septic service companies serving Oakville.
More septic service companies and Oakville pages
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