Plumbers in Markham
17 plumbers in Markham with multi-platform trust scores.
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Who is the best plumber in Markham, Ontario?
The highest-scoring plumbers in Markham on ProScore are Preferred Plumbing Solutions Inc. (85/100), Dima Plumbing (82/100) and Prompt Plumbing (75/100). ProScore has scored 17 plumbers in Markham across 10+ data sources and 20+ trust signals. 5 of the 17 are Trusted-tier (70+) or higher.
Star ratings alone do not separate them: 13 of the 17 average 4.5 stars or higher on Google, but only 5 reach Trusted (70+). ProScore also weighs government licensing where it applies, WSIB coverage, ratings on other platforms and what customers say in their reviews.
Trust scores last computed October 13, 2026.
Which plumbers in Markham score highest?
All 17 scored plumbers in Markham, ranked by ProScore.
ProScore scores 17 plumbers in Markham, and their average score is 62 out of 100. 5 of them reach the Trusted threshold of 70 or higher. 3 are registered with WSIB. 17 have Google reviews on file — 943 reviews in total, and 8 carry a Better Business Bureau rating. Across Ontario, 40% of the plumbers ProScore has scored reach the Trusted threshold; at 29%, Markham is below the provincial rate.
Preferred Plumbing Solutions Inc. operates seven days a week from Markham and handles repair work on site.
Preferred Plumbing Solutions Inc. ranks 1st of the 17 plumbers ProScore scores in Markham, holding a ProScore of 85 out of 100 (Elite tier). Its score draws on 474 Google reviews averaging 4.8 out of 5, 201 reviews on other major review platforms and a Better Business Bureau rating of A+.
Dima Plumbing is a plumbing repair service based in Markham, Ontario, operating 24 hours, seven days a week.
Dima Plumbing ranks 2nd of the 17 plumbers ProScore scores in Markham, holding a ProScore of 82 out of 100 (Elite tier). Its score draws on 97 Google reviews averaging 4.9 out of 5, 821 reviews on other major review platforms and a Better Business Bureau rating of A+.
Prompt Plumbing is a plumbing contractor based in Markham that operates 24 hours, seven days a week and handles repair work. The business offers service in Cantonese, English, Filipino, Hindi, Korean, and Mandarin, accepts credit cards, and has free parking and a wheelchair-accessible washroom.
Prompt Plumbing ranks 3rd of the 17 plumbers ProScore scores in Markham, holding a ProScore of 75 out of 100 (Trusted tier). Its score draws on 14 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A.
Open 24 hours, seven days a week, Superior Plumbing & Heating of Markham is a plumber serving the area with on-site repair work and online estimates.
The ProScore for Superior Plumbing & Heating of Markham draws on 44 Google reviews averaging 4.9 out of 5.
Access Plumbing operates 24 hours a day, seven days a week, handling repair work in Markham and accepting credit card payments.
The ProScore for Access Plumbing draws on 47 Google reviews averaging 4.7 out of 5.
The team carries out jobs efficiently while maintaining cleanliness and respect for customers' homes, communicates transparently about pricing, and approaches work with honesty that customers recognize and trust.
The ProScore for Megan-Drew Plumbing & Mechanical draws on 72 Google reviews averaging 5.0 out of 5.
One Drop Plumbing Ltd is a plumber operating 24 hours a day, seven days a week, based in Markham, Ontario.
The ProScore for One Drop Plumbing Ltd draws on 42 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Public records show One Drop Plumbing Ltd is registered with WSIB.
The ProScore for Plumber Rapid Rescue draws on 6 Google reviews averaging 5.0 out of 5.
Innovation Plumbing Inc. is a plumbing contractor based in Markham, Ontario, open six days a week.
The ProScore for Innovation Plumbing Inc. draws on 40 Google reviews averaging 5.0 out of 5. Public records show Innovation Plumbing Inc. is registered with WSIB.
Max Trust Plumbing is a plumber based in Markham that handles repair work and accepts credit cards, operating during weekday hours.
The ProScore for Max Trust Plumbing draws on 5 Google reviews averaging 4.2 out of 5.
Markham Plumbing, Drain Repair & Drain Cleaning Inc operates 24 hours a day, seven days a week in Markham, offering plumbing and drain services.
The ProScore for Markham Plumbing, Drain Repair & Drain Cleaning Inc draws on 40 Google reviews averaging 4.6 out of 5.
S & J Plumbing is a plumber operating 24 hours, seven days a week in Markham, Ontario, and takes repair work and credit card payments.
The ProScore for S & J plumbing draws on 29 Google reviews averaging 3.3 out of 5 and a Better Business Bureau rating of A+.
The ProScore for Riva Plumbing Ltd. draws on 19 Google reviews averaging 3.9 out of 5 and a Better Business Bureau rating of A+. Public records show Riva Plumbing Ltd. is registered with WSIB.
Markham Plumbing & Mechanical Services operates 24 hours, seven days a week in Markham, Ontario.
The ProScore for Markham Plumbing & Mechanical Services draws on 1 Google review averaging 5.0 out of 5.
The ProScore for Griffiths Plumbing draws on 5 Google reviews averaging 5.0 out of 5.
The ProScore for Reid V A & Sons Plumbing Limited draws on 6 Google reviews averaging 4.3 out of 5 and a Better Business Bureau rating of A+.
The ProScore for 10 plus plumbing draws on 2 Google reviews averaging 5.0 out of 5.
How is a plumber's ProScore calculated?
Every plumber in Markham is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing where it applies and WSIB), Transparency (online presence and profile completeness), and Sentiment (AI analysis of customer reviews). The result is a ProScore from 0 to 100.
Read the full methodology →Who are the top 3 plumbers in Markham?
Browse all plumbers in Markham →What else should I check before hiring plumbers in Markham?
Frequently Asked Questions
Who is the best plumber in Markham?
Preferred Plumbing Solutions Inc. has the highest ProScore (85/100) among 17 plumbers in Markham, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing where it applies, WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy plumber in Markham?
Look for plumbers with verified active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In Markham, 2 plumbers hold Elite-tier ProScores (81+), 3 are Trusted-tier (70+), and 7 are Good-tier (54+).
Are plumbers in Markham licensed?
Yes, the person doing the work has to be. Plumbing is a compulsory trade in Ontario: a plumber needs a Certificate of Qualification, or must be a registered apprentice, and you can check either on the Skilled Trades Ontario public register. Of the top 17 plumbers in Markham by ProScore, 3 are registered with WSIB according to ProScore’s records.
How many plumbers has ProScore scored in Markham?
ProScore has scored 17 plumbers in Markham, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed October 13, 2026.
What's the ProScore distribution among plumbers in Markham?
Among 17 plumbers in Markham, Ontario: 2 are Elite-tier (81+), 3 are Trusted-tier (70+), and 7 are Good-tier (54+). Together they average a ProScore of 62/100, with Preferred Plumbing Solutions Inc. leading at 85/100.
How do plumbers in Markham compare with Ontario as a whole?
29% of the plumbers ProScore has scored in Markham reach the Trusted tier (70+), against 40% across Ontario as a whole, so Markham is below the provincial rate.
Plumbers near Markham
The nearest Ontario cities with a ProScore page for this trade — a pro based nearby may cover your area.
Other trades in Markham
Other trades with a ProScore page in Markham, with the number of scored pros in each.