61/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 388 Google reviews.
Best Septic Service Companies in Willowdale, ON (2026)
59 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Willowdale: CD Flood & Sewer Water Damage Cleanup, CR Score 61/100; 5.0★ from 388 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Sewer Squad Plumbing, posts 24/7 hours; ranked #2 of 59.
- 2
Most-reviewed: Sewer Squad Plumbing, 1,700 Google reviews at 4.9★, the most of 59 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
59 Willowdale septic service companies are ranked here by CR Score, from ten published factors. 37 are open 24/7, 50 open Saturdays and 45 open Sundays, based on posted hours. The median Google rating is 4.9★ across 59 rated businesses.
Top 10 septic service companies in Willowdale at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CD Flood & Sewer Water Damage Cleanup | 61 | 5.0★ (388) | Toronto, 11 km away | 24/7 | Overall |
| 2 | Sewer Squad Plumbing | 60 | 4.9★ (1,700) | Ajax, 30 km away | 24/7 | Emergencies, Most reviews |
| 3 | Rooter-Man Drain & Sewer Repair Services Toronto | 59 | 4.8★ (570) | Etobicoke, 18 km away | 24/7 | — |
| 4 | Sewer-Man Drains & Waterproofing | 59 | 4.6★ (26) | Toronto, 9 km away | 24/7 | — |
| 5 | PipeWorks Plumbing and Drain Services | 58 | 5.0★ (12) | Pickering, 12 km away | 24/7 | — |
| 6 | Crystal Drain & Plumbing, Drain Backup, Drain Cleaning, Sewer Drain Repair Scarborough | 58 | 4.9★ (85) | Scarborough, 10 km away | 24/7 | — |
| 7 | Brethour Brent Septic Tank Pumping Inc | 58 | 5.0★ (456) | Uxbridge, 37 km away | Sat · Evenings | — |
| 8 | ASAP Scarborough Plumbing Services | 58 | 5.0★ (7) | Scarborough, 8 km away | 24/7 | — |
| 9 | Everest Drain & Plumbing Toronto | 57 | 4.8★ (299) | Toronto, 7 km away | 24/7 | — |
| 10 | Bravo Plumber Vaughan | 57 | 5.0★ (5) | Concord, 8 km away | 24/7 | — |
The 59 best septic service companies in Willowdale, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Ajax, 30 km away
60/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 1,700 Google reviews, the most in Willowdale.
Based in Etobicoke, 18 km away
59/100CR ScoreRanked #3 because of its Google rating and review volume: 4.8★ from 570 Google reviews.
Based in Toronto, 9 km away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.6★ from 26 Google reviews, listed on Google as “Septic system service”.
Based in Pickering, 12 km away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based in Scarborough, 10 km away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “Plumber”.
Based in Uxbridge, 37 km away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 456 Google reviews, listed on Google as “Septic system service”.
Based in Scarborough, 8 km away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Toronto, 7 km away
57/100CR ScoreRanked #9 because of its Google rating and review volume: 4.8★ from 299 Google reviews.
Based in Concord, 8 km away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Mississauga, 22 km away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 165 Google reviews, listed on Google as “Plumber”.
Based in North York, 5 km away
57/100CR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 131 Google reviews.
Based in Brampton, 5 km away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based in Brampton, 28 km away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.7★ from 38 Google reviews, listed on Google as “Septic system service”.
Based in Markham, 14 km away
56/100CR ScoreRanked #15 because of its Google rating and review volume: 4.7★ from 479 Google reviews.
Based in East York, 8 km away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 66 Google reviews, listed on Google as “Plumber”.
Based in Aurora, 15 km away
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 332 Google reviews.
Based in Mississauga, 37 km away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “Septic system service”.
Based in Vaughan, 12 km away
55/100CR ScoreRanked #19 because of its Google rating and review volume: 4.8★ from 145 Google reviews.
Based in Mississauga, 27 km away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Plumber”.
Based in Oshawa, 39 km away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Septic system service”.
Based in Brampton, 29 km away
55/100CR ScoreRanked #22 because of its Google rating and review volume: 4.8★ from 539 Google reviews.
Based in Vaughan, 12 km away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Plumber”.
Based in Mississauga, 23 km away
55/100CR ScoreRanked #24 because of its Google rating and review volume: 4.8★ from 274 Google reviews.
Based in Etobicoke, 18 km away
55/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 155 Google reviews.
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 59 ranked septic service companies here; the rest are on their profiles.
Also serving Willowdale
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 |
|---|---|---|
| AshCon Excavating Inc. | 5.0★ (1) | 30 km |
| Beaches Bluffs Leslieville Plumbing & Drains | 14 km | |
| CGT Grease Trap Cleaning Vaughan | 12 km | |
| Cleanflo Water Technologies | 5.0★ (1) | 10 km |
| DTEC Mechanical Waterproofing Expert | 5.0★ (1) | 13 km |
| Durham Septic Experts | 5.0★ (1) | 32 km |
| EAST YORK DRAIN & PLUMBING SEWER DRAIN CLEANING INC | 10 km | |
| Everest Drain & Plumbing: Stouffville's Local Plumber | 5.0★ (1) | 28 km |
| Headwaters Construction | 5.0★ (1) | 33 km |
| Indian Line Septic | 5.0★ (1) | 26 km |
| J. Hoover Limited | Full Service Construction | 5.0★ (1) | 30 km |
| Max Grease Trap Cleaning Mississauga | 5.0★ (1) | 33 km |
| Milton Septic | 17 km | |
| Muddy Men Construction | 1.5★ (2) | 40 km |
| North York sewer & drain services | 5.0★ (1) | 4 km |
| Plumbing Nerds: Plumbing & Drain Services near North York, ON | 5.0★ (2) | 5 km |
| Pro Grease Trap Cleaning Toronto | 5.0★ (1) | 13 km |
| Sagar Benmar | 14 km | |
| The Super Plumber - Toronto | 6 km | |
| Willowdale HomeCare | 5.0★ (2) | In Willowdale |
How we ranked Willowdale septic service companies
We scored 59 Willowdale 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 Willowdale 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 Willowdale: frequently asked questions
Who is the best septic service company in Willowdale?
By CR Score, the highest-ranked septic service company in Willowdale, ON is CD Flood & Sewer Water Damage Cleanup with a CR Score of 61/100. It has 5.0★ from 388 Google reviews. It is open 24/7. Sewer Squad Plumbing (#2) and Rooter-Man Drain & Sewer Repair Services Toronto (#3) follow. We ranked 59 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Willowdale?
ContractorsRanked ranks 59 septic service companies serving Willowdale, ON. 1 of them is based in Willowdale; 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 Willowdale are open 24/7?
37 ranked septic service companies in Willowdale post 24/7 hours. The highest-ranked are CD Flood & Sewer Water Damage Cleanup (#1), Sewer Squad Plumbing (#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 Willowdale work on weekends?
50 of 59 ranked septic service companies post Saturday hours and 45 post Sunday hours. The highest-ranked open Saturdays are CD Flood & Sewer Water Damage Cleanup (#1), Sewer Squad Plumbing (#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 Willowdale septic service companies have?
The median Google rating among 59 rated septic service companies in Willowdale is 4.9★, with a median of 26 reviews. Sewer Squad Plumbing has the most, 1,700 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 Willowdale count in this ranking?
Yes, if they are within 40 km of the Willowdale 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 Willowdale
- November 2026: CR Scores recalculated for 59 septic service companies serving Willowdale.
- November 2026: 1 duplicate listing merged.
More septic service companies and Willowdale pages
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