62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 327 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 Newmarket, ON (2026)
68 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Newmarket: Pump My Tank, CR Score 62/100; 4.8★ from 327 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Mr. Rooter Plumbing of Newmarket ON, posts 24/7 hours; ranked #3 of 68.
- 3
Most-reviewed: Mr. Rooter Plumbing of Newmarket ON, 512 Google reviews at 4.8★, the most of 68 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
68 Newmarket septic service companies are ranked here by CR Score, from ten published factors. 33 are open 24/7, 47 open Saturdays and 41 open Sundays, based on posted hours. The median Google rating is 4.9★ across 68 rated businesses.
Top 10 septic service companies in Newmarket at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Pump My Tank | 62 | 4.8★ (327) | Innisfil, 32 km away | 24/7 | Overall |
| 2 | Brethour Brent Septic Tank Pumping Inc | 61 | 5.0★ (456) | Uxbridge, 25 km away | Sat · Evenings | — |
| 3 | Mr. Rooter Plumbing of Newmarket ON | 59 | 4.8★ (512) | East Gwillimbury, 12 km away | 24/7 | Emergencies, Most reviews |
| 4 | DLK Septic Services Inc. | 59 | 4.9★ (256) | Toronto, 39 km away | Sat · Sun · Evenings | — |
| 5 | Mr. Rooter Plumbing of Richmond Hill ON | 58 | 4.8★ (332) | Aurora, 17 km away | 24/7 | — |
| 6 | A-1 Septic Pumping | 57 | 4.6★ (59) | Alliston, 33 km away | 24/7 | — |
| 7 | Superior Plumbing & Heating of Caledon | 57 | 4.7★ (38) | Brampton, 30 km away | 24/7 | — |
| 8 | MCS Plumbing | 57 | 4.9★ (75) | East Gwillimbury, 25 km away | — | — |
| 9 | L J's Pumping And Septic Service | 57 | 5.0★ (15) | East Gwillimbury, 23 km away | 24/7 | — |
| 10 | Sewer-Man Drains & Waterproofing | 57 | 4.6★ (26) | Toronto, 25 km away | 24/7 | — |
The 68 best septic service companies in Newmarket, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Uxbridge, 25 km away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 456 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Gwillimbury, 12 km away
59/100CR ScoreRanked #3 because of its Google rating and review volume: 4.8★ from 512 Google reviews, the most in Newmarket.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 39 km away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 256 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 17 km away
58/100CR ScoreRanked #5 because of its Google rating and review volume: 4.8★ from 332 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alliston, 33 km away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 59 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brampton, 30 km away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 38 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#8 MCS Plumbing
Based in East Gwillimbury, 25 km away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 75 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in East Gwillimbury, 23 km away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 15 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
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.6★ 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 Keswick, 22 km away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#12 McPumperTruck
Based in East Gwillimbury, 7 km away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.6★ from 18 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Keswick, 36 km away
56/100CR ScoreRanked #13 because of its Google rating and review volume: 4.7★ from 204 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pickering, 32 km away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Scarborough, 21 km away
55/100CR ScoreRanked #15 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.
Based in Vaughan, 11 km away
55/100CR ScoreRanked #16 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.
Based in Scarborough, 34 km away
55/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 85 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alliston, 35 km away
55/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.4★ from 21 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Scarborough, 19 km away
55/100CR ScoreRanked #19 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 Markham, 37 km away
55/100CR ScoreRanked #20 because of its Google rating and review volume: 4.7★ from 479 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vaughan, 27 km away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.8★ from 145 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North York, 29 km away
54/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 131 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Markham, 17 km away
54/100CR ScoreRanked #23 because of its Google rating and review volume: 4.5★ from 124 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#24 DrainX
Based in Markham, 12 km away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in East Gwillimbury, 12 km away
54/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 34 Google reviews.
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 68 ranked septic service companies here; the rest are on their profiles.
Also serving Newmarket
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) | 3 km |
| Clark Excavation Services Inc. | 3.0★ (2) | In Newmarket |
| Cleanflo Water Technologies | 5.0★ (1) | 30 km |
| DTEC Mechanical Waterproofing Expert | 5.0★ (1) | 31 km |
| Durham Septic Experts | 5.0★ (1) | 20 km |
| Everest Drain & Plumbing: Stouffville's Local Plumber | 5.0★ (1) | 12 km |
| Headwaters Construction | 5.0★ (1) | 36 km |
| Indian Line Septic | 5.0★ (1) | 28 km |
| J. Hoover Limited | Full Service Construction | 5.0★ (1) | 21 km |
| Milton Septic | 21 km | |
| Moderno Construction Inc. | In Newmarket | |
| Muddy Men Construction | 1.5★ (2) | 18 km |
| Muddy Men Construction Corporation. | 3.0★ (1) | 37 km |
| North York sewer & drain services | 5.0★ (1) | 33 km |
| Plumber Bradford West Gwillimbury | 11 km | |
| Plumber East Gwillimbury | In Newmarket | |
| Plumber Keswick | 21 km | |
| Plumbing Nerds: Plumbing & Drain Services near North York, ON | 5.0★ (2) | 30 km |
| Soil Surgeons Excavating, Grading, & Septic | 5.0★ (2) | 40 km |
| Tekoa environmental Ltd. | 11 km |
How we ranked Newmarket septic service companies
We scored 68 Newmarket 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 Newmarket 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 Newmarket: frequently asked questions
Who is the best septic service company in Newmarket?
By CR Score, the highest-ranked septic service company in Newmarket, ON is Pump My Tank with a CR Score of 62/100. It has 4.8★ from 327 Google reviews. It is open 24/7. Brethour Brent Septic Tank Pumping Inc (#2) and Mr. Rooter Plumbing of Newmarket ON (#3) follow. We ranked 68 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Newmarket?
ContractorsRanked ranks 68 septic service companies serving Newmarket, ON. Another 20 within 40 km are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Newmarket are open 24/7?
33 ranked septic service companies in Newmarket post 24/7 hours. The highest-ranked are Pump My Tank (#1), Mr. Rooter Plumbing of Newmarket ON (#3) and Mr. Rooter Plumbing of Richmond Hill ON (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Newmarket work on weekends?
47 of 68 ranked septic service companies post Saturday hours and 41 post Sunday hours. The highest-ranked open Saturdays are Pump My Tank (#1), Brethour Brent Septic Tank Pumping Inc (#2) and Mr. Rooter Plumbing of Newmarket ON (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Newmarket septic service companies have?
The median Google rating among 68 rated septic service companies in Newmarket is 4.9★, with a median of 19 reviews. Mr. Rooter Plumbing of Newmarket ON has the most, 512 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 Newmarket count in this ranking?
Yes, if they are within 40 km of the Newmarket 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 Newmarket
- November 2026: CR Scores recalculated for 68 septic service companies serving Newmarket.
- November 2026: 1 duplicate listing merged.
More septic service companies and Newmarket pages
Septic service companies near Newmarket
- Septic service companies in Aurora, ON67 ranked
- Septic service companies in East Gwillimbury, ON68 ranked
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- Septic service companies in Uxbridge, ON49 ranked
- Septic service companies in Pickering, ON51 ranked
- Septic service companies in North York, ON57 ranked
- Septic service companies in Willowdale, ON59 ranked
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