62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.7★ from 479 Google reviews, listed on Google as “Plumber”.
- 4.7★ from 479 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Plumbers in Markham, ON (2026)
766 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Markham: Mr. Rooter Plumbing of Scarborough ON, CR Score 62/100; 4.7★ from 479 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Reliance Heating, Air Conditioning & Plumbing, posts 24/7 hours; ranked #2 of 766.
- 2
Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 10,870 Google reviews at 4.9★, the most of 766 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
766 Markham plumbers are ranked here by CR Score, from ten published factors. 427 are open 24/7, 614 open Saturdays and 512 open Sundays, based on posted hours. The median Google rating is 4.9★ across 766 rated businesses.
Top 10 plumbers in Markham at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mr. Rooter Plumbing of Scarborough ON | 62 | 4.7★ (479) | Markham | 24/7 | Overall |
| 2 | Reliance Heating, Air Conditioning & Plumbing | 62 | 4.9★ (10,870) | Richmond Hill, 10 km away | 24/7 | Emergencies, Most reviews |
| 3 | Sewer Squad Plumbing | 62 | 4.9★ (1,700) | Ajax, 19 km away | 24/7 | — |
| 4 | Enercare | 62 | 4.8★ (1,023) | Pickering, 12 km away | 24/7 | — |
| 5 | PLUMBER ON DEMAND of MARKHAM, ON | 62 | 4.9★ (160) | Markham | 24/7 | — |
| 6 | Dima Plumbing | 61 | 4.9★ (97) | Markham | 24/7 | — |
| 7 | Preferred Plumbing Solutions Inc. | 61 | 4.8★ (470) | Markham | Sat · Sun · Evenings | — |
| 8 | PLUMBER ON DEMAND of RICHMOND HILL, ON | 61 | 4.9★ (91) | Markham | 24/7 | — |
| 9 | Drain King Plumbers Toronto | 61 | 4.7★ (2,552) | North York, 21 km away | 24/7 | — |
| 10 | Grizzly Plumbing and Heating Inc | 61 | 5.0★ (430) | Scarborough, 18 km away | 24/7 | — |
The 766 best plumbers in Markham, 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 Richmond Hill, 10 km away
62/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 10,870 Google reviews, the most in Markham.
- 4.9★ from 10,870 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 200 West Beaver Creek Rd Unit 1-7, Richmond Hill, ON L4B 1B4
Based in Ajax, 19 km away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 1,700 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 1,700 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 520 Westney Rd S #3, Ajax, ON L1S 7H4
#4 Enercare
Based in Pickering, 12 km away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 1,023 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 1,023 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Markham
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 160 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Markham
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 97 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 97 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 25 Pamgrey Rd, Markham, ON L6E 0B2
Based in Markham
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 470 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 470 Google reviews
- Hours
- Mon–Fri 7:30 AM–8:30 PM · Sat 9 AM–5 PM · Sun 12 PM–5 PM
- Address
- 350 John St. #6, Markham, ON L3T 5W6
Based in Markham
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 91 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 91 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in North York, 21 km away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 2,552 Google reviews, listed on Google as “Plumber”.
- 4.7★ from 2,552 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 100 St Regis Crescent S #8, North York, ON M3J 1Y8
Based in Scarborough, 18 km away
61/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 430 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 430 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 123 S Woodrow Blvd, Scarborough, ON M1N 3L8
Based in Scarborough, 10 km away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 165 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 165 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2220 Midland Ave, Scarborough, ON M1P 3E6
Based in Toronto, 10 km away
61/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 356 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 356 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 390 Progress Ave Unit# 2, Toronto, ON M1P 2Z6
Based in North York, 27 km away
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 2,243 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 2,243 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 71 Penn Dr, North York, ON M9L 2A6
Based in Toronto, 28 km away
61/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 1,062 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 1,062 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 180 Brock Ave, Toronto, ON M6K 2L6
#15 Premier Plumbing
Based in East York, 19 km away
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 453 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 453 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 196 Divadale Dr, East York, ON M4G 2P7
#16 H2O Plumbers
Based in Scarborough, 14 km away
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 170 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 170 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Lawrence Ave E, Scarborough, ON M1R 5H2
Based in North York, 11 km away
60/100CR ScoreRanked #17 because of its Google rating and review volume: 4.7★ from 9,158 Google reviews.
- 4.7★ from 9,158 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2 Lansing Square, North York, ON M2J 4P8
Based in Toronto, 27 km away
60/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 1,771 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 1,771 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1594 Dupont St, Toronto, ON M6P 3S7
#19 Saving Plumbing
Based in Scarborough, 9 km away
60/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 192 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 192 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10 Milner Business Ct suite 300, Scarborough, ON M1B 3C6
Based in North York, 14 km away
60/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 255 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 255 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1875 Leslie St, North York, ON M3B 2M5
Based in Aurora, 20 km away
60/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 305 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 305 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 168 Loraview Ln, Aurora, ON L4G 6N4
Based in Aurora, 14 km away
60/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 332 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 332 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Markham
60/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 37 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10 Black Walnut Dr, Markham, ON L3S 4A7
Based in Scarborough, 11 km away
60/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 324 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 324 Google reviews
- Hours
- Mon–Sun 6 AM–5 PM
- Address
- 32 Beamsville Dr, Scarborough, ON M1T 3S2
Based in Markham
60/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4960 Elgin Mills Rd E, Markham, ON L6C 1L5
Plumbers 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 766 ranked plumbers here; the rest are on their profiles.
Also serving Markham
20 more plumbers 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 |
|---|---|---|
| Aras Plumbing (Richmond Hill) | 5.0★ (1) | In Markham |
| Basement Waterproofing Markham | 5.0★ (2) | In Markham |
| Bath Emporium Castle Kitchens & Appliance | 4.4★ (382) | In Markham |
| Battaglia Mechanical Services | 1.0★ (1) | In Markham |
| Canadian Standard Plumbing | 5.0★ (116) | 16 km |
| Emergency Plumbing Markham | 5.0★ (2) | In Markham |
| Ferrier Maintenance | 5.0★ (1) | In Markham |
| GoPro Plumbing | 5.0★ (1) | In Markham |
| Innovation Electric Inc. | 5.0★ (225) | In Markham |
| Local Plumbing Services | 5.0★ (1) | In Markham |
| Maple Star Heating, Cooling and Plumbing | 5.0★ (1) | In Markham |
| Markham Ceramic Tile & Marble | 4.5★ (36) | In Markham |
| Markham Plumbing & Mechanical Services | 5.0★ (1) | In Markham |
| Master Edge Homes | 4.8★ (18) | In Markham |
| Mr Rooter Plumbing of Ajax-Pickering | 4.7★ (393) | 19 km |
| N And D Plumbing & Heating | 3.0★ (2) | In Markham |
| P & S Water 永業淨水 | 3.0★ (2) | In Markham |
| Seeman Plumbing Markham | 5.0★ (2) | In Markham |
| Senso Design - Home & Kitchen Renovation | 4.9★ (115) | In Markham |
| V-CAN Construction Inc. | 5.0★ (17) | In Markham |
How much do plumbers cost in Markham?
US national ranges converted to CAD, not adjusted for Markham. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | CA$1,240 | CA$1,890 | CA$2,570 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
How we ranked Markham plumbers
We scored 766 Markham plumbers 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 October 22, 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 Markham 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 |
Plumbers in Markham: frequently asked questions
Who is the best plumber in Markham?
By CR Score, the highest-ranked plumber in Markham, ON is Mr. Rooter Plumbing of Scarborough ON with a CR Score of 62/100. It has 4.7★ from 479 Google reviews. It is open 24/7. Reliance Heating, Air Conditioning & Plumbing (#2) and Sewer Squad Plumbing (#3) follow. We ranked 766 plumbers on ten factors, last updated October 22, 2026.
How many plumbers are there in Markham?
ContractorsRanked ranks 766 plumbers serving Markham, ON. 13 of them are based in Markham; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in Markham are open 24/7?
427 ranked plumbers in Markham post 24/7 hours. The highest-ranked are Mr. Rooter Plumbing of Scarborough ON (#1), Reliance Heating, Air Conditioning & Plumbing (#2) and Sewer Squad Plumbing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Markham work on weekends?
614 of 766 ranked plumbers post Saturday hours and 512 post Sunday hours. The highest-ranked open Saturdays are Mr. Rooter Plumbing of Scarborough ON (#1), Reliance Heating, Air Conditioning & Plumbing (#2) and Sewer Squad Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does water heater replacement cost in Markham?
Water heater replacement typically costs CA$1,240 to CA$2,570, with CA$1,890 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for Markham. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Markham plumbers have?
The median Google rating among 766 rated plumbers in Markham is 4.9★, with a median of 27 reviews. Reliance Heating, Air Conditioning & Plumbing has the most, 10,870 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank plumbers?
Each plumber 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 plumbers outside Markham count in this ranking?
Yes, if they are within 40 km of the Markham city centre, our service radius for plumbers. 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.
Update log for Markham
- October 2026: CR Scores recalculated for 766 plumbers serving Markham.
- October 2026: 5 duplicate listings merged.
More plumbers and Markham pages
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